AI_107_ImprovedWalkers()

void Terraria.NPC.AI_107_ImprovedWalkers ( )

inlineprivate

Definition at line 55138 of file NPC.cs.

    {
        //IL_16d7: Unknown result type (might be due to invalid IL or missing references)
        //IL_0890: Unknown result type (might be due to invalid IL or missing references)
        //IL_0895: Unknown result type (might be due to invalid IL or missing references)
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        //IL_08d6: Unknown result type (might be due to invalid IL or missing references)
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        //IL_23c4: Unknown result type (might be due to invalid IL or missing references)
        //IL_145b: Unknown result type (might be due to invalid IL or missing references)
        //IL_1e7c: Unknown result type (might be due to invalid IL or missing references)
        //IL_196e: Unknown result type (might be due to invalid IL or missing references)
        //IL_147d: Unknown result type (might be due to invalid IL or missing references)
        //IL_1482: Unknown result type (might be due to invalid IL or missing references)
        //IL_0f7b: Unknown result type (might be due to invalid IL or missing references)
        //IL_0f80: Unknown result type (might be due to invalid IL or missing references)
        //IL_0509: Unknown result type (might be due to invalid IL or missing references)
        //IL_05f1: Unknown result type (might be due to invalid IL or missing references)
        //IL_0589: Unknown result type (might be due to invalid IL or missing references)
        //IL_1e9e: Unknown result type (might be due to invalid IL or missing references)
        //IL_0813: Unknown result type (might be due to invalid IL or missing references)
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        //IL_0fa2: Unknown result type (might be due to invalid IL or missing references)
        //IL_0835: Unknown result type (might be due to invalid IL or missing references)
        //IL_10a1: Unknown result type (might be due to invalid IL or missing references)
        //IL_0fe2: Unknown result type (might be due to invalid IL or missing references)
        //IL_0fe7: Unknown result type (might be due to invalid IL or missing references)
        //IL_1003: Unknown result type (might be due to invalid IL or missing references)
        //IL_1008: Unknown result type (might be due to invalid IL or missing references)
        //IL_10c3: Unknown result type (might be due to invalid IL or missing references)
        //IL_10c8: Unknown result type (might be due to invalid IL or missing references)
        //IL_10e9: Unknown result type (might be due to invalid IL or missing references)
        //IL_110b: Unknown result type (might be due to invalid IL or missing references)
        //IL_1110: Unknown result type (might be due to invalid IL or missing references)
        //IL_2c37: Unknown result type (might be due to invalid IL or missing references)
        //IL_0f1e: Unknown result type (might be due to invalid IL or missing references)
        bool flag = velocity.X == 0f && velocity.Y == 0f && !justHit;
        bool flag2 = false;
        bool flag3 = false;
        bool flag4 = false;
        int num = 32;
        int num2 = 15;
        float num3 = 9f;
        bool flag5 = false;
        float num4 = 40f;
        int num5 = 30;
        int num6 = 0;
        bool flag6 = false;
        bool flag7 = true;
        float num7 = 0.9f;
        bool flag8 = false;
        bool flag9 = false;
        bool flag10 = false;
        bool flag11 = false;
        bool flag12 = false;
        bool flag13 = false;
        bool flag14 = false;
        bool flag15 = true;
        int num8 = 70;
        int num9 = num8 / 2;
        float num10 = 11f;
        Vector2 vector = Vector2.Zero;
        int num11 = 1;
        int num12 = 81;
        float num13 = 700f;
        float num14 = 0f;
        float num15 = 0.1f;
        Vector2? vector2 = null;
        float num16 = 0.5f;
        int num17 = 1;
        float num18 = 1f;
        bool flag16 = false;
        float num19 = 30f;
        float num20 = 0f;
        bool flag17 = false;
        bool flag18 = true;
        bool flag19 = false;
        int num21 = 30;
        bool flag20 = false;
        bool flag21 = false;
        bool flag22 = false;
        bool flag23 = false;
        LegacySoundStyle style = null;
        int num22 = 0;
        bool flag24 = false;
        float num23 = 1f;
        float num24 = 0.07f;
        float num25 = 0.8f;
        float num26 = width / 2 + 6;
        bool flag25 = directionY < 0;
        bool flag26 = false;
        int num27 = 1;
        bool flag27 = false;
        float num28 = 5f;
        float num29 = 3f;
        float num30 = 8f;
        float amount = 0.05f;
        float amount2 = 0.04f;
        float amount3 = 0.1f;
        bool flag28 = false;
        float num31 = 0.025f;
        NPCAimedTarget targetData = GetTargetData();
        NPCUtils.NPCTargetingMethod nPCTargetingMethod = NPCUtils.TargetClosestCommon;
        if (NPCID.Sets.BelongsToInvasionOldOnesArmy[type])
        {
            nPCTargetingMethod = NPCUtils.TargetClosestOldOnesInvasion;
        }
        if (targetData.Type == NPCTargetType.NPC && Main.npc[TranslatedTargetIndex].type == 548 && Main.npc[TranslatedTargetIndex].dontTakeDamageFromHostiles)
        {
            nPCTargetingMethod(this, faceTarget: true, null);
            targetData = GetTargetData();
        }
        if (NPCID.Sets.FighterUsesDD2PortalAppearEffect[type])
        {
            if (!targetData.Invalid)
            {
                flag2 = !Collision.CanHit(base.Center, 0, 0, targetData.Center, 0, 0) && (direction == Math.Sign(targetData.Center.X - base.Center.X) || (noGravity && Distance(targetData.Center) > 50f && base.Center.Y > targetData.Center.Y));
            }
            flag2 &= ai[0] <= 0f;
        }
        if (flag2)
        {
            if (velocity.Y == 0f || Math.Abs(targetData.Center.Y - base.Center.Y) > 800f)
            {
                noGravity = true;
                noTileCollide = true;
            }
        }
        else
        {
            noGravity = false;
            noTileCollide = false;
        }
        bool flag29 = NPCID.Sets.FighterUsesDD2PortalAppearEffect[type];
        bool flag30 = true;
        SlotId val;
        switch (type)
        {
        case 576:
        case 577:
            num22 = 700;
            style = SoundID.DD2_OgreRoar;
            num26 -= 32f;
            flag5 = true;
            num6 = 60;
            num4 = 130f;
            num5 = 44;
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            num7 = 0.7f;
            if (localAI[0] > 0f)
            {
                localAI[0] -= 1f;
            }
            if (ai[0] <= 0f)
            {
                float num34 = ai[1];
                float num35 = Distance(targetData.Center);
                if (localAI[3] >= 60f)
                {
                    if (num35 <= num4 + 300f && localAI[0] <= 0f)
                    {
                        ai[1] = 2f;
                    }
                    else if (num35 > num4 + 30f)
                    {
                        ai[1] = 1f;
                    }
                    else if (!(num35 > num4))
                    {
                        ai[1] = 0f;
                        if (num34 == 1f)
                        {
                            ai[0] = 0f;
                        }
                    }
                }
                if (num34 != ai[1])
                {
                    netUpdate = true;
                }
            }
            else if (ai[1] == 2f)
            {
                localAI[0] = 300f;
            }
            switch ((int)ai[1])
            {
            case 0:
                num5 = 44;
                if (ai[0] == 40f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_OgreAttack, base.Center);
                }
                break;
            case 2:
                num5 = 90;
                num4 = 250f;
                flag4 = true;
                num11 = GetAttackDamage_ForProjectiles(60f, 40f);
                num9 = 36;
                num = 56;
                num2 = 41;
                num3 = 13f;
                flag3 = true;
                num12 = 683;
                flag15 = false;
                vector = new Vector2(-direction * 20, height / 2 - 1);
                if (ai[0] == 40f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_OgreGroundPound, base.Center);
                }
                break;
            case 1:
                flag3 = true;
                num5 = 90;
                num4 = 1000f;
                num6 = 240;
                num11 = GetAttackDamage_ForProjectiles(40f, 30f);
                flag15 = false;
                vector = new Vector2(direction * 30, -70f);
                num12 = 676;
                if (ai[0] == 80f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_OgreSpit, base.Center);
                }
                break;
            }
            if (ai[0] < (float)(-num6))
            {
                ai[0] = -num6;
            }
            break;
        case 552:
        case 553:
        case 554:
            style = SoundID.DD2_GoblinScream;
            num22 = 1000;
            flag5 = true;
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            if (type == 553)
            {
                num24 += 0.01f;
                num23 += 0.2f;
            }
            if (type == 554)
            {
                num24 += 0.02f;
                num23 += 0.4f;
            }
            if (!(localAI[3] >= 60f))
            {
                num24 = 0.01f + localAI[3] / 60f * 0.05f;
            }
            break;
        case 570:
        case 571:
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            flag24 = true;
            flag12 = true;
            flag15 = ai[1] > 40f;
            num8 = 60;
            num9 = 40;
            if (type == 571 && ai[1] > 10f && ai[1] <= 40f && (int)ai[1] % 6 == 0)
            {
                num9 = (int)ai[1] - 1;
            }
            if (type == 570 && ai[1] > 10f && ai[1] <= 40f && (int)ai[1] % 9 == 0)
            {
                num9 = (int)ai[1] - 1;
            }
            num12 = 671;
            vector.X += 22 * direction;
            num15 = 0.15f;
            num16 = 1.5f;
            num13 = 600f;
            num10 = 13f;
            num17 = 1;
            num18 = 0f;
            if (type == 570)
            {
                num16 = 2.5f;
            }
            num11 = GetAttackDamage_ForProjectiles(35f, 25f);
            if (type == 571)
            {
                num11 = GetAttackDamage_ForProjectiles(60f, 45f);
            }
            num23 = 0.77f;
            if (ai[0] > 0f)
            {
                if (ai[1] == 40f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_DrakinShot, base.Center);
                }
                else if (ai[1] == 60f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_DrakinBreathIn, base.Center);
                }
            }
            if (!(localAI[3] >= 60f))
            {
                num13 = 1f;
                num24 = 0.01f + localAI[3] / 60f * 0.05f;
            }
            break;
        case 572:
        case 573:
            if (localAI[3] == 0f)
            {
                float[] array = localAI;
                val = SlotId.Invalid;
                array[0] = ((SlotId)(ref val)).ToFloat();
                float[] array2 = localAI;
                val = SlotId.Invalid;
                array2[1] = ((SlotId)(ref val)).ToFloat();
            }
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            if (ai[1] == 2f)
            {
                SoundEngine.GetActiveSound(SlotId.FromFloat(localAI[0]))?.Stop();
                SoundEngine.GetActiveSound(SlotId.FromFloat(localAI[1]))?.Stop();
                position = base.Center;
                width = (height = 192);
                base.Center = position;
                velocity = Vector2.Zero;
                damage = GetAttackDamage_ScaledByStrength(80f);
                alpha = 255;
                for (int k = 0; k < 4; k++)
                {
                    int num37 = Dust.NewDust(new Vector2(position.X, position.Y), width, height, 31, 0f, 0f, 100, default(Color), 1.5f);
                    Main.dust[num37].position = base.Center + Vector2.UnitY.RotatedByRandom(3.1415927410125732) * (float)Main.rand.NextDouble() * width / 2f;
                }
                for (int l = 0; l < 20; l++)
                {
                    int num38 = Dust.NewDust(new Vector2(position.X, position.Y), width, height, 6, 0f, 0f, 200, default(Color), 3.7f);
                    Main.dust[num38].position = base.Center + Vector2.UnitY.RotatedByRandom(3.1415927410125732) * (float)Main.rand.NextDouble() * width / 2f;
                    Main.dust[num38].noGravity = true;
                    Main.dust[num38].velocity *= 3f;
                    num38 = Dust.NewDust(new Vector2(position.X, position.Y), width, height, 6, 0f, 0f, 100, default(Color), 1.5f);
                    Main.dust[num38].position = base.Center + Vector2.UnitY.RotatedByRandom(3.1415927410125732) * (float)Main.rand.NextDouble() * width / 4f;
                    Main.dust[num38].velocity *= 2f;
                    Main.dust[num38].noGravity = true;
                    Main.dust[num38].fadeIn = 2.5f;
                }
                for (int m = 0; m < 6; m++)
                {
                    int num39 = Dust.NewDust(new Vector2(position.X, position.Y), width, height, 6, 0f, 0f, 0, default(Color), 2.7f);
                    Main.dust[num39].position = base.Center + Vector2.UnitX.RotatedByRandom(3.1415927410125732).RotatedBy(velocity.ToRotation()) * width / 2f;
                    Main.dust[num39].noGravity = true;
                    Main.dust[num39].velocity *= 3f;
                }
                for (int n = 0; n < 12; n++)
                {
                    int num40 = Dust.NewDust(new Vector2(position.X, position.Y), width, height, 31, 0f, 0f, 0, default(Color), 1.5f);
                    Main.dust[num40].position = base.Center + Vector2.UnitX.RotatedByRandom(3.1415927410125732).RotatedBy(velocity.ToRotation()) * width / 2f;
                    Main.dust[num40].noGravity = true;
                    Main.dust[num40].velocity *= 3f;
                }
                for (int num41 = 0; num41 < 5; num41++)
                {
                    int num42 = Gore.NewGore(position + new Vector2((float)(width * Main.rand.Next(100)) / 100f, (float)(height * Main.rand.Next(100)) / 100f) - Vector2.One * 10f, default(Vector2), Main.rand.Next(61, 64));
                    Main.gore[num42].position = base.Center + Vector2.UnitY.RotatedByRandom(3.1415927410125732) * (float)Main.rand.NextDouble() * width / 2f;
                    Main.gore[num42].velocity *= 0.3f;
                    Main.gore[num42].velocity.X += (float)Main.rand.Next(-10, 11) * 0.05f;
                    Main.gore[num42].velocity.Y += (float)Main.rand.Next(-10, 11) * 0.05f;
                }
                ai[0] += 1f;
                if (ai[0] >= 3f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_KoboldExplosion, base.Center);
                    life = 0;
                    HitEffect();
                    active = false;
                }
                return;
            }
            if (ai[0] > 0f && ai[1] == 0f && life > 0)
            {
                SlotId val2 = SlotId.FromFloat(localAI[0]);
                if (!((SlotId)(ref val2)).IsValid)
                {
                    float[] array3 = localAI;
                    val = SoundEngine.PlayTrackedSound(SoundID.DD2_KoboldIgnite, base.Center);
                    array3[0] = ((SlotId)(ref val)).ToFloat();
                }
                localAI[2] += 1f;
                if (localAI[2] == 30f)
                {
                    float[] array4 = localAI;
                    val = SoundEngine.PlayTrackedSound(SoundID.DD2_KoboldIgniteLoop, base.Center);
                    array4[0] = ((SlotId)(ref val)).ToFloat();
                    float[] array5 = localAI;
                    val = SoundEngine.PlayTrackedSound(SoundID.DD2_KoboldScreamChargeLoop, base.Center);
                    array5[1] = ((SlotId)(ref val)).ToFloat();
                }
            }
            if (ai[0] > 0f && ai[1] == 1f)
            {
                ai[0] = 0f;
                ai[1] = 2f;
                netUpdate = true;
                return;
            }
            num23 = 0.88f;
            if (ai[0] == 1f)
            {
                ai[1] = 1f;
            }
            if (ai[0] == 0f && ai[1] == 1f)
            {
                ActiveSound activeSound = SoundEngine.GetActiveSound(SlotId.FromFloat(localAI[0]));
                if (activeSound == null)
                {
                    float[] array6 = localAI;
                    val = SoundEngine.PlayTrackedSound(SoundID.DD2_KoboldIgniteLoop, base.Center);
                    array6[0] = ((SlotId)(ref val)).ToFloat();
                }
                else
                {
                    activeSound.Position = base.Center;
                }
                ActiveSound activeSound2 = SoundEngine.GetActiveSound(SlotId.FromFloat(localAI[1]));
                if (activeSound2 == null)
                {
                    float[] array7 = localAI;
                    val = SoundEngine.PlayTrackedSound(SoundID.DD2_KoboldScreamChargeLoop, base.Center);
                    array7[1] = ((SlotId)(ref val)).ToFloat();
                }
                else
                {
                    activeSound2.Position = base.Center;
                }
            }
            if (ai[1] > 0f && ai[0] == 0f)
            {
                flag5 = true;
                num5 = 40;
                num4 = 64f;
                num24 = 0.3f;
                num23 = 4f;
                Vector2 vector3 = base.Center + new Vector2(spriteDirection * 12, 0f);
                if (Main.rand.Next(6) == 0)
                {
                    Dust dust3 = Dust.NewDustDirect(vector3, 1, 1, 213, Main.rand.Next(-2, 3), Main.rand.Next(-2, 3), 100, new Color(255, 255, 255, 0));
                    dust3.noGravity = true;
                    dust3.fadeIn = dust3.scale + 1f + 0.01f * (float)Main.rand.Next(0, 51);
                    dust3.velocity *= 0.3f;
                    dust3.velocity.X += (float)(-spriteDirection) * 1.2f;
                    dust3.velocity.Y += -3.5f;
                    dust3.velocity.X += velocity.X;
                }
                if (Main.rand.Next(12) == 0)
                {
                    Dust dust4 = Dust.NewDustPerfect(vector3, 6, velocity, 100);
                    dust4.noGravity = true;
                    dust4.velocity.Y -= 1f + Main.rand.NextFloat();
                    dust4.scale = 1.1f;
                    dust4.fadeIn = 0.5f;
                    dust4.customData = this;
                }
            }
            else
            {
                flag5 = true;
                num5 = 40;
                num4 = 700f;
            }
            if (!(localAI[3] >= 60f))
            {
                num24 = 0.01f + localAI[3] / 60f * 0.05f;
            }
            break;
        case 568:
        case 569:
        {
            num5 = 110;
            num24 = 0.16f;
            num25 = 0.7f;
            num23 = 1.4f;
            flag5 = true;
            num4 = 600f;
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            if (!(localAI[3] >= 60f))
            {
                num24 = 0.01f + localAI[3] / 60f * 0.05f;
            }
            if (ai[0] == 0f)
            {
                float[] array8 = localAI;
                val = SlotId.Invalid;
                array8[1] = ((SlotId)(ref val)).ToFloat();
            }
            if (ai[0] != 1f)
            {
                break;
            }
            HitSound = SoundID.DD2_WitherBeastCrystalImpact;
            ai[0] += 1f;
            if (Main.rand.Next(10) == 0)
            {
                Dust dust7 = Dust.NewDustDirect(base.TopLeft, width, height, 271, 0f, -3f, 0, Color.Transparent, 0.6f);
                dust7.velocity.X /= 2f;
                dust7.noGravity = true;
                dust7.fadeIn = 1.5f;
                dust7.position.Y += 4f;
            }
            ActiveSound activeSound3 = SoundEngine.GetActiveSound(SlotId.FromFloat(localAI[1]));
            if (activeSound3 == null)
            {
                float[] array9 = localAI;
                val = SoundEngine.PlayTrackedSound(SoundID.DD2_WitherBeastAuraPulse, base.Center);
                array9[1] = ((SlotId)(ref val)).ToFloat();
            }
            else
            {
                activeSound3.Position = base.Center;
            }
            localAI[0] += 1f;
            if (localAI[0] > 60f && Main.rand.Next(10) == 0)
            {
                Vector2 vec = base.Center + (Main.rand.NextFloat() * ((float)Math.PI * 2f)).ToRotationVector2() * 400f * (0.3f + 0.7f * Main.rand.NextFloat());
                Point point = vec.ToTileCoordinates();
                if (!WorldGen.SolidTile(point.X, point.Y))
                {
                    Dust dust8 = Dust.NewDustPerfect(vec, 27, new Vector2(0f, -3f), 0, new Color(255, 255, 255, 127), 1.5f);
                    dust8.velocity = DirectionTo(dust8.position) * dust8.velocity.Length();
                    dust8.fadeIn = 1.5f;
                }
            }
            if (Main.netMode != 2)
            {
                Player player = Main.player[Main.myPlayer];
                if (!player.dead && player.active && (player.Center - base.Center).Length() < 400f && !player.creativeGodMode)
                {
                    player.AddBuff(195, 3, quiet: false);
                }
            }
            if (ai[1] > 0f)
            {
                ai[1] -= 1f;
            }
            if (!(ai[1] <= 0f))
            {
                break;
            }
            ai[1] = 60f;
            if (Main.netMode != 1)
            {
                int num51 = lifeMax / 20;
                if (num51 > lifeMax - life)
                {
                    num51 = lifeMax - life;
                }
                if (num51 > 0)
                {
                    life += num51;
                    HealEffect(num51);
                    netUpdate = true;
                }
            }
            break;
        }
        case 561:
        case 562:
        case 563:
        {
            bool num36 = localAI[3] >= 60f;
            if (ai[1] == 82f)
            {
                SoundEngine.PlayTrackedSound(SoundID.DD2_JavelinThrowersAttack, base.Center);
                num22 = 7;
                style = SoundID.DD2_JavelinThrowersTaunt;
            }
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            flag24 = true;
            flag12 = true;
            flag15 = ai[1] > 82f;
            num8 = 90;
            num9 = 82;
            num12 = 662;
            if (type == 563)
            {
                num12 = 685;
            }
            vector.Y -= 14f;
            num15 = 0f;
            num16 = 0.5f;
            num13 = 600f;
            num10 = 13f;
            if (!num36)
            {
                num13 = 1f;
                num24 = 0.01f + localAI[3] / 60f * 0.05f;
            }
            if (type == 561)
            {
                num23 = 0.88f;
                num16 = 0.6f;
                num11 = GetAttackDamage_ForProjectiles(15f, 10f);
                num10 = 11.5f;
                num13 -= 100f;
            }
            if (type == 562)
            {
                num23 = 0.94f;
                num16 = 0.5f;
                num11 = GetAttackDamage_ForProjectiles(30f, 20f);
                num10 = 12.2f;
                num13 -= 50f;
            }
            if (type == 563)
            {
                num23 = 1f;
                num16 = 0.4f;
                num11 = GetAttackDamage_ForProjectiles(45f, 30f);
            }
            break;
        }
        case 555:
        case 556:
        case 557:
        {
            num22 = 800;
            style = SoundID.DD2_GoblinBomberScream;
            bool num33 = localAI[3] >= 60f;
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            flag24 = true;
            flag12 = true;
            flag15 = ai[1] > 18f;
            num8 = 42;
            num9 = 18;
            num12 = 681;
            num11 = 10;
            vector.Y -= 14f;
            num15 = 0.4f;
            num16 = 0.5f;
            num13 = 280f;
            num10 = 6f;
            if (!num33)
            {
                num13 = 1f;
                num24 = 0.01f + localAI[3] / 60f * 0.05f;
            }
            if (type == 555)
            {
                num23 = 0.88f;
                num16 = 0.6f;
                num11 = GetAttackDamage_ForProjectiles(20f, 15f);
            }
            if (type == 556)
            {
                num23 = 0.88f;
                num16 = 0.6f;
                num11 = GetAttackDamage_ForProjectiles(30f, 25f);
            }
            if (type == 557)
            {
                num23 = 1.12f;
                num16 = 0.4f;
                num11 = GetAttackDamage_ForProjectiles(40f, 35f);
            }
            if (ai[1] == (float)num9)
            {
                SoundEngine.PlayTrackedSound(SoundID.DD2_GoblinBomberThrow, base.Center);
            }
            break;
        }
        case 566:
        case 567:
        {
            DelegateMethods.v3_1 = new Vector3(0.3f, 0.05f, 0.45f) * 1.5f;
            Utils.PlotTileLine(base.Top, base.Bottom, width, DelegateMethods.CastLightOpen);
            flag21 = DD2Event.EnemiesShouldChasePlayers;
            bool num43 = localAI[3] >= 120f;
            if (!num43)
            {
                num24 = 0f;
            }
            if (num43)
            {
                dontTakeDamage = false;
                break;
            }
            dontTakeDamage = true;
            velocity.X = 0f;
            flag24 = true;
            flag20 = true;
            ai[3] = 0f;
            if (localAI[3] == 0f)
            {
                alpha = 255;
            }
            localAI[3] += 1f;
            float num44 = localAI[3];
            if (num44 >= 110f)
            {
                alpha -= 26;
                if (alpha < 0)
                {
                    alpha = 0;
                }
            }
            if (num44 >= 100f)
            {
                int num45 = (int)localAI[3] / 20;
                float num46 = base.Size.Length() / 2f;
                num46 /= 20f;
                int maxValue = 5;
                for (int num47 = 0; num47 < num45 * 2; num47++)
                {
                    if (Main.rand.Next(maxValue) == 0)
                    {
                        Dust dust5 = Dust.NewDustDirect(position, width, height, 236, velocity.X * 1f);
                        dust5.scale = 1f;
                        dust5.fadeIn = 0.3f;
                        dust5.velocity = new Vector2(Main.rand.NextFloatDirection() * 1f, 0f - dust5.velocity.Length()) * 1.25f * num46;
                    }
                }
            }
            else
            {
                int num48 = (int)localAI[3] / 10;
                float num49 = base.Size.Length() / 2f;
                num49 /= 20f;
                int maxValue2 = 5;
                for (int num50 = 0; (float)num50 < (float)num48 * 1.3f; num50++)
                {
                    if (Main.rand.Next(maxValue2) == 0)
                    {
                        Dust dust6 = Dust.NewDustDirect(position + new Vector2(-width / 2, 8f), width + width, height, 27, velocity.X * 1f, 0f, 100);
                        dust6.scale = 1.1f;
                        dust6.fadeIn = 0.1f;
                        dust6.velocity = new Vector2(Main.rand.NextFloatDirection() * 0.1f, 0f - dust6.velocity.Length()) * 1.05f * num49 * Main.rand.NextFloat();
                        dust6.velocity.Y *= Utils.GetLerpValue((float)width * 0.75f, 0f, Math.Abs(dust6.position.X - base.Center.X), clamped: true);
                    }
                }
            }
            if (num44 > 100f && (int)num44 % 4 == 0)
            {
                Gore.NewGoreDirect(base.Left, new Vector2(0f, -3f), Utils.SelectRandom<int>(Main.rand, 971, 972), 0.85f).velocity.X *= 0.8f;
            }
            break;
        }
        case 620:
        {
            flag27 = wet;
            flag30 = false;
            flag16 = true;
            num20 = 150f;
            num19 = 20f;
            bool dayTime = Main.dayTime;
            flag21 = !dayTime;
            flag24 = true;
            flag12 = true;
            flag15 = ai[1] > 40f;
            num8 = 60;
            num9 = 40;
            if (ai[1] > 10f && ai[1] <= 40f && (int)ai[1] % 5 == 0)
            {
                num9 = (int)ai[1] - 1;
            }
            num12 = 811;
            vector.X -= 4 * direction;
            vector.Y -= 20f;
            num15 = 0.15f;
            num16 = 2.5f;
            num13 = 600f;
            num10 = 13f;
            num17 = 1;
            num18 = 0f;
            num11 = GetAttackDamage_ForProjectiles(40f, 30f);
            num23 = 8f;
            num24 *= 3f;
            num25 = 0.9f;
            if (ai[0] > 0f)
            {
                if (ai[1] == 40f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_DrakinShot, base.Center);
                }
                else if (ai[1] == 60f)
                {
                    SoundEngine.PlayTrackedSound(SoundID.DD2_DrakinBreathIn, base.Center);
                }
            }
            position += netOffset;
            if (alpha == 255)
            {
                spriteDirection = direction;
                velocity.Y = -6f;
                netUpdate = true;
                for (int i = 0; i < 35; i++)
                {
                    Dust dust = Dust.NewDustDirect(position, width, height, 5);
                    dust.velocity *= 1f;
                    dust.scale = 1f + Main.rand.NextFloat() * 0.5f;
                    dust.fadeIn = 1.5f + Main.rand.NextFloat() * 0.5f;
                    dust.velocity += velocity * 0.5f;
                }
            }
            alpha -= 15;
            if (alpha < 0)
            {
                alpha = 0;
            }
            if (alpha != 0)
            {
                for (int j = 0; j < 2; j++)
                {
                    Dust dust2 = Dust.NewDustDirect(position, width, height, 5);
                    dust2.velocity *= 1f;
                    dust2.scale = 1f + Main.rand.NextFloat() * 0.5f;
                    dust2.fadeIn = 1.5f + Main.rand.NextFloat() * 0.5f;
                    dust2.velocity += velocity * 0.3f;
                }
            }
            if (Main.rand.Next(3) == 0)
            {
                Dust.NewDustDirect(position, width, height, 5, 0f, 0f, 50, default(Color), 1.3f).velocity = Vector2.Zero;
            }
            position -= netOffset;
            if (dayTime)
            {
                flag12 = false;
                flag24 = false;
                flag23 = true;
            }
            else
            {
                if (velocity.Y != 0f || !((float)targetData.Hitbox.Bottom < base.Top.Y) || !(Math.Abs(base.Center.X - (float)targetData.Hitbox.Center.X) < (float)(width * 3)) || !Collision.CanHit(base.Hitbox.TopLeft(), base.Hitbox.Width, base.Hitbox.Height, targetData.Hitbox.TopLeft(), targetData.Hitbox.Width, targetData.Hitbox.Height))
                {
                    break;
                }
                int num32 = (int)((base.Bottom.Y - 16f - (float)targetData.Hitbox.Bottom) / 16f);
                if (num32 < 27)
                {
                    if (num32 < 11)
                    {
                        velocity.Y = -11f;
                    }
                    else if (num32 < 15)
                    {
                        velocity.Y = -13f;
                    }
                    else if (num32 < 19)
                    {
                        velocity.Y = -14f;
                    }
                    else
                    {
                        velocity.Y = -15.9f;
                    }
                }
            }
            break;
        }
        }
        if (flag28)
        {
            bool flag31 = velocity.Y == 0f;
            for (int num52 = 0; num52 < 200; num52++)
            {
                if (num52 != whoAmI && Main.npc[num52].active && Main.npc[num52].type == type && Math.Abs(position.X - Main.npc[num52].position.X) + Math.Abs(position.Y - Main.npc[num52].position.Y) < (float)width)
                {
                    if (position.X < Main.npc[num52].position.X)
                    {
                        velocity.X -= num31;
                    }
                    else
                    {
                        velocity.X += num31;
                    }
                    if (position.Y < Main.npc[num52].position.Y)
                    {
                        velocity.Y -= num31;
                    }
                    else
                    {
                        velocity.Y += num31;
                    }
                }
            }
            if (flag31)
            {
                velocity.Y = 0f;
            }
        }
        if (flag29)
        {
            if (localAI[3] == 0f)
            {
                alpha = 255;
            }
            if (localAI[3] == 30f)
            {
                SoundEngine.PlayTrackedSound(SoundID.DD2_EtherianPortalSpawnEnemy, base.Center);
            }
            if (localAI[3] < 60f)
            {
                localAI[3] += 1f;
                alpha -= 5;
                if (alpha < 0)
                {
                    alpha = 0;
                }
                int num53 = (int)localAI[3] / 10;
                float num54 = base.Size.Length() / 2f;
                num54 /= 20f;
                int maxValue3 = 5;
                if (type == 576 || type == 577)
                {
                    maxValue3 = 1;
                }
                for (int num55 = 0; num55 < num53; num55++)
                {
                    if (Main.rand.Next(maxValue3) == 0)
                    {
                        Dust dust9 = Dust.NewDustDirect(position, width, height, 27, velocity.X * 1f, 0f, 100);
                        dust9.scale = 0.55f;
                        dust9.fadeIn = 0.7f;
                        dust9.velocity *= 0.1f * num54;
                        dust9.velocity += velocity;
                    }
                }
            }
        }
        if (flag27)
        {
            noGravity = true;
            TargetClosest(faceTarget: false);
            if (collideX)
            {
                velocity.X = 0f - oldVelocity.X;
            }
            if (velocity.X != 0f)
            {
                direction = Math.Sign(direction);
            }
            if (Collision.CanHit(position, width, height, targetData.Position, targetData.Width, targetData.Height))
            {
                Vector2 value = targetData.Center - base.Center;
                value.Normalize();
                value *= num28;
                velocity = Vector2.Lerp(velocity, value, amount);
                return;
            }
            float num56 = num28;
            if (velocity.Y > 0f)
            {
                num56 = num29;
            }
            if (velocity.Y < 0f)
            {
                num56 = num30;
            }
            Vector2 value2 = new Vector2(direction, -1f);
            value2.Normalize();
            value2 *= num56;
            if (num56 < num28)
            {
                velocity = Vector2.Lerp(velocity, value2, amount2);
            }
            else
            {
                velocity = Vector2.Lerp(velocity, value2, amount3);
            }
            return;
        }
        bool flag32 = false;
        if ((flag12 || flag5) && ai[0] > 0f)
        {
            flag18 = false;
        }
        if (flag12 && ai[1] > 0f)
        {
            flag22 = true;
        }
        if (flag5 && ai[0] > 0f)
        {
            flag22 = true;
        }
        if (flag5)
        {
            if (ai[0] < 0f)
            {
                ai[0] += 1f;
                flag = false;
            }
            if (ai[0] == 0f && (velocity.Y == 0f || flag6) && targetData.Type != 0 && (Collision.CanHit(position, width, height, targetData.Position, targetData.Width, targetData.Height) || Collision.CanHitLine(position, width, height, targetData.Position, targetData.Width, targetData.Height)) && (targetData.Center - base.Center).Length() < num4)
            {
                ai[0] = num5;
                netUpdate = true;
            }
            if (ai[0] > 0f)
            {
                spriteDirection = direction * num27;
                if (flag7)
                {
                    velocity.X *= num7;
                    flag24 = true;
                    flag20 = true;
                    ai[3] = 0f;
                    netUpdate = true;
                }
                ai[0] -= 1f;
                if (ai[0] == 0f)
                {
                    ai[0] = -num6;
                    netUpdate = true;
                }
            }
        }
        if (flag3 && ai[0] > 0f)
        {
            if (flag15)
            {
                nPCTargetingMethod(this, faceTarget: true, null);
                targetData = GetTargetData();
            }
            if (ai[0] == (float)num9)
            {
                Vector2 vector4 = base.Center + vector;
                Vector2 v = targetData.Center - vector4;
                v.Y -= Math.Abs(v.X) * num15;
                Vector2 vector5 = v.SafeNormalize(-Vector2.UnitY) * num10;
                for (int num57 = 0; num57 < num17; num57++)
                {
                    Vector2 vector6 = vector5;
                    Vector2 vector7 = vector4;
                    if (vector2.HasValue)
                    {
                        vector6 += vector2.Value;
                    }
                    else
                    {
                        vector6 += Utils.RandomVector2(Main.rand, 0f - num16, num16);
                    }
                    vector7 += vector5 * num18;
                    if (Main.netMode != 1)
                    {
                        Projectile.NewProjectile(GetSpawnSource_ForProjectile(), vector7, vector6, num12, num11, 0f, Main.myPlayer);
                    }
                }
            }
        }
        if (flag4 && ai[0] > 0f)
        {
            if (velocity.Y != 0f && ai[0] < (float)num2)
            {
                ai[0] = num2;
            }
            if (ai[0] == (float)num)
            {
                velocity.Y = 0f - num3;
            }
        }
        if (!flag17 && flag18)
        {
            if (velocity.Y == 0f && velocity.X * (float)direction < 0f)
            {
                flag19 = true;
            }
            if (position.X == oldPosition.X || ai[3] >= (float)num21 || flag19)
            {
                ai[3] += 1f;
            }
            else if (Math.Abs(velocity.X) > 0.9f && ai[3] > 0f)
            {
                ai[3] -= 1f;
            }
            if (ai[3] > (float)(num21 * 10))
            {
                ai[3] = 0f;
            }
            if (justHit && !flag30)
            {
                ai[3] = 0f;
            }
            if (targetData.Hitbox.Intersects(base.Hitbox))
            {
                ai[3] = 0f;
            }
            if (ai[3] == (float)num21)
            {
                netUpdate = true;
                if (flag30)
                {
                    noGravity = true;
                    noTileCollide = true;
                    position.X += direction * width * 2;
                    int num58 = 20;
                    float num59 = base.Size.Length() / 2f;
                    num59 /= 20f;
                    int maxValue4 = 5;
                    if (type == 576 || type == 577)
                    {
                        maxValue4 = 1;
                    }
                    for (int num60 = 0; num60 < num58; num60++)
                    {
                        if (Main.rand.Next(maxValue4) == 0)
                        {
                            Dust dust10 = Dust.NewDustDirect(position, width, height, 27, velocity.X * 1f, 0f, 100);
                            dust10.scale = 0.55f;
                            dust10.fadeIn = 0.7f;
                            dust10.velocity *= 3f * num59;
                            dust10.noGravity = true;
                            dust10.fadeIn = 1.5f;
                            dust10.velocity *= 3f;
                        }
                    }
                    return;
                }
            }
        }
        if (!flag20)
        {
            if (ai[3] < (float)num21 && flag21)
            {
                if (num22 > 0 && Main.rand.Next(num22) == 0)
                {
                    SoundEngine.PlayTrackedSound(style, base.Center);
                }
                bool hasValidTarget = HasValidTarget;
                nPCTargetingMethod(this, faceTarget: true, null);
                targetData = GetTargetData();
                if (hasValidTarget != HasValidTarget)
                {
                    netUpdate = true;
                }
            }
            else if (!flag22)
            {
                if (flag23)
                {
                    EncourageDespawn(10);
                }
                if (velocity.X == 0f)
                {
                    if (velocity.Y == 0f)
                    {
                        ai[2] += 1f;
                        if (ai[2] >= 2f)
                        {
                            direction *= -1;
                            spriteDirection = direction * num27;
                            ai[2] = 0f;
                            netUpdate = true;
                        }
                    }
                }
                else if (ai[2] != 0f)
                {
                    ai[2] = 0f;
                    netUpdate = true;
                }
                if (direction == 0)
                {
                    direction = 1;
                }
            }
        }
        if (!flag24)
        {
            if (velocity.X < 0f - num23 || velocity.X > num23)
            {
                if (velocity.Y == 0f)
                {
                    velocity *= num25;
                }
            }
            else if ((velocity.X < num23 && direction == 1) || (velocity.X > 0f - num23 && direction == -1))
            {
                velocity.X = MathHelper.Clamp(velocity.X + num24 * (float)direction, 0f - num23, num23);
            }
        }
        if (flag12)
        {
            if (confused)
            {
                ai[0] = 0f;
            }
            else
            {
                if (ai[1] > 0f)
                {
                    ai[1] -= 1f;
                }
                if (justHit)
                {
                    ai[1] = num19;
                    ai[0] = 0f;
                }
                if (ai[0] > 0f)
                {
                    if (flag15)
                    {
                        nPCTargetingMethod(this, faceTarget: true, null);
                        targetData = GetTargetData();
                    }
                    if (ai[1] == (float)num9)
                    {
                        Vector2 vector8 = base.Center + vector;
                        Vector2 v2 = targetData.Center - vector8;
                        v2.Y -= Math.Abs(v2.X) * num15;
                        Vector2 vector9 = v2.SafeNormalize(-Vector2.UnitY) * num10;
                        for (int num61 = 0; num61 < num17; num61++)
                        {
                            Vector2 vector10 = vector8;
                            Vector2 vector11 = vector9;
                            if (vector2.HasValue)
                            {
                                vector11 += vector2.Value;
                            }
                            else
                            {
                                vector11 += Utils.RandomVector2(Main.rand, 0f - num16, num16);
                            }
                            vector10 += vector11 * num18;
                            if (Main.netMode != 1)
                            {
                                Projectile.NewProjectile(GetSpawnSource_ForProjectile(), vector10, vector11, num12, num11, 0f, Main.myPlayer);
                            }
                        }
                        if (Math.Abs(vector9.Y) > Math.Abs(vector9.X) * 2f)
                        {
                            ai[0] = ((vector9.Y > 0f) ? 1 : 5);
                        }
                        else if (Math.Abs(vector9.X) > Math.Abs(vector9.Y) * 2f)
                        {
                            ai[0] = 3f;
                        }
                        else
                        {
                            ai[0] = ((vector9.Y > 0f) ? 2 : 4);
                        }
                        if (flag16)
                        {
                            direction = ((vector9.X > 0f) ? 1 : (-1));
                        }
                    }
                    bool flag33 = true;
                    if ((velocity.Y != 0f && !flag14) || ai[1] <= 0f)
                    {
                        bool flag34 = false;
                        if (num20 != 0f && ai[1] <= 0f)
                        {
                            flag34 = true;
                        }
                        ai[0] = 0f;
                        ai[1] = (flag34 ? num20 : 0f);
                    }
                    else if (!flag13 || (!flag33 && (!flag14 || velocity.Y == 0f)))
                    {
                        velocity.X *= 0.9f;
                        spriteDirection = direction * num27;
                    }
                }
                if ((ai[0] <= 0f || flag13) && (velocity.Y == 0f || flag14) && ai[1] <= 0f && targetData.Type != 0 && Collision.CanHit(position, width, height, targetData.Position, targetData.Width, targetData.Height))
                {
                    Vector2 vector12 = targetData.Center - base.Center;
                    if (vector12.Length() < num13)
                    {
                        netUpdate = true;
                        velocity.X *= 0.5f;
                        ai[0] = 3f;
                        ai[1] = num8;
                        if (Math.Abs(vector12.Y) > Math.Abs(vector12.X) * 2f)
                        {
                            ai[0] = ((vector12.Y > 0f) ? 1 : 5);
                        }
                        else if (Math.Abs(vector12.X) > Math.Abs(vector12.Y) * 2f)
                        {
                            ai[0] = 3f;
                        }
                        else
                        {
                            ai[0] = ((vector12.Y > 0f) ? 2 : 4);
                        }
                        if (flag16)
                        {
                            direction = ((vector12.X > 0f) ? 1 : (-1));
                        }
                    }
                }
                if (ai[0] <= 0f || flag13)
                {
                    bool flag35 = Distance(targetData.Center) < num14;
                    if (flag35 && Collision.CanHitLine(position, width, height, targetData.Position, targetData.Width, targetData.Height))
                    {
                        ai[3] = 0f;
                    }
                    if (velocity.X < 0f - num23 || velocity.X > num23 || flag35)
                    {
                        if (velocity.Y == 0f)
                        {
                            velocity.X *= num25;
                        }
                    }
                    else if ((velocity.X < num23 && direction == 1) || (velocity.X > 0f - num23 && direction == -1))
                    {
                        velocity.X = MathHelper.Clamp(velocity.X + num24 * (float)direction, 0f - num23, num23);
                    }
                }
            }
        }
        if (velocity.Y == 0f)
        {
            int num62 = (int)(base.Bottom.Y + 7f) / 16;
            int num63 = (int)base.Left.X / 16;
            int num64 = (int)base.Right.X / 16;
            int num65;
            for (num65 = num63; num65 <= num64; num65++)
            {
                num65 = Utils.Clamp(num65, 0, Main.maxTilesX);
                num62 = Utils.Clamp(num62, 0, Main.maxTilesY);
                Tile tile = Main.tile[num65, num62];
                if (tile == null)
                {
                    return;
                }
                if (tile.nactive() && Main.tileSolid[tile.type])
                {
                    flag32 = true;
                    break;
                }
            }
        }
        Point point2 = base.Center.ToTileCoordinates();
        if (WorldGen.InWorld(point2.X, point2.Y, 5) && !noGravity)
        {
            GetTileCollisionParameters(out var cPosition, out var cWidth, out var cHeight);
            Vector2 vector13 = position - cPosition;
            Collision.StepUp(ref cPosition, ref velocity, cWidth, cHeight, ref stepSpeed, ref gfxOffY);
            position = cPosition + vector13;
        }
        if (flag32)
        {
            int num66 = (int)(base.Center.X + num26 * (float)direction) / 16;
            int num67 = ((int)base.Bottom.Y - 15) / 16;
            bool flag36 = position.Y + (float)height - (float)(num67 * 16) > 20f;
            Tile tileSafely = Framing.GetTileSafely(num66 + direction, num67 + 1);
            Tile tileSafely2 = Framing.GetTileSafely(num66, num67 + 1);
            Tile tileSafely3 = Framing.GetTileSafely(num66, num67);
            Tile tileSafely4 = Framing.GetTileSafely(num66, num67 - 1);
            Tile tileSafely5 = Framing.GetTileSafely(num66, num67 - 2);
            Tile tileSafely6 = Framing.GetTileSafely(num66, num67 - 3);
            if (flag8 && tileSafely4.nactive() && (tileSafely4.type == 10 || tileSafely4.type == 388))
            {
                ai[0] += 1f;
                ai[3] = 0f;
                if (ai[0] >= 60f)
                {
                    if (flag9)
                    {
                        ai[1] = 0f;
                    }
                    int num68 = 5;
                    if (Main.tile[num66, num67 - 1].type == 388)
                    {
                        num68 = 2;
                    }
                    velocity.X = 0.5f * (float)(-direction);
                    ai[1] += num68;
                    bool flag37 = false;
                    if (ai[1] >= 10f)
                    {
                        flag37 = true;
                        ai[1] = 10f;
                    }
                    if (flag10)
                    {
                        flag37 = true;
                    }
                    WorldGen.KillTile(num66, num67 - 1, fail: true);
                    if (Main.netMode != 1 && flag37)
                    {
                        if (flag11)
                        {
                            WorldGen.KillTile(num66, num67 - 1);
                            if (Main.netMode == 2)
                            {
                                NetMessage.SendData(17, -1, -1, null, 0, num66, num67 - 1);
                            }
                        }
                        else
                        {
                            if (tileSafely4.type == 10)
                            {
                                bool flag38 = WorldGen.OpenDoor(num66, num67 - 1, direction);
                                if (!flag38)
                                {
                                    ai[3] = num21;
                                    netUpdate = true;
                                }
                                if (Main.netMode == 2 && flag38)
                                {
                                    NetMessage.SendData(19, -1, -1, null, 0, num66, num67 - 1, direction);
                                }
                            }
                            if (tileSafely4.type == 388)
                            {
                                bool flag39 = WorldGen.ShiftTallGate(num66, num67 - 1, closing: false);
                                if (!flag39)
                                {
                                    ai[3] = num21;
                                    netUpdate = true;
                                }
                                if (Main.netMode == 2 && flag39)
                                {
                                    NetMessage.SendData(19, -1, -1, null, 4, num66, num67 - 1, direction);
                                }
                            }
                        }
                    }
                }
            }
            else
            {
                int num69 = spriteDirection * num27;
                if (velocity.X * (float)num69 > 0f)
                {
                    if (height >= 32 && tileSafely5.nactive() && Main.tileSolid[tileSafely5.type])
                    {
                        netUpdate = true;
                        velocity.Y = -7f;
                        if (tileSafely6.nactive() && Main.tileSolid[tileSafely6.type])
                        {
                            velocity.Y = -8f;
                        }
                    }
                    else if (tileSafely4.nactive() && Main.tileSolid[tileSafely4.type])
                    {
                        velocity.Y = -6f;
                        netUpdate = true;
                    }
                    else if (flag36 && tileSafely3.nactive() && !tileSafely3.topSlope() && Main.tileSolid[tileSafely3.type])
                    {
                        velocity.Y = -5f;
                        netUpdate = true;
                    }
                    else if (flag25 && (!tileSafely2.nactive() || !Main.tileSolid[tileSafely2.type]) && (!tileSafely.nactive() || !Main.tileSolid[tileSafely.type]))
                    {
                        velocity.X *= 1.5f;
                        velocity.Y = -8f;
                        netUpdate = true;
                    }
                    else if (flag8)
                    {
                        ai[0] = 0f;
                        ai[1] = 0f;
                    }
                    if (velocity.Y == 0f && flag && ai[3] == 1f)
                    {
                        velocity.Y = -5f;
                        netUpdate = true;
                    }
                }
                if (flag26 && velocity.Y == 0f && Math.Abs(targetData.Center.X - base.Center.X) < 100f && Math.Abs(targetData.Center.Y - base.Center.Y) < 50f && Math.Abs(velocity.X) >= 1f && velocity.X * (float)direction > 0f)
                {
                    velocity.X = MathHelper.Clamp(velocity.X * 2f, -3f, 3f);
                    velocity.Y = -4f;
                    netAlways = true;
                }
            }
        }
        else if (flag8)
        {
            ai[0] = 0f;
            ai[1] = 0f;
        }
        if (!flag2 || !noTileCollide)
        {
            return;
        }
        wet = false;
        if (flag29)
        {
            if (alpha < 60)
            {
                alpha += 20;
            }
            localAI[3] = 40f;
        }
        bool num70 = velocity.Y == 0f;
        if (Math.Abs(base.Center.X - targetData.Center.X) > 200f)
        {
            spriteDirection = (direction = ((targetData.Center.X > base.Center.X) ? 1 : (-1)));
            velocity.X = MathHelper.Lerp(velocity.X, direction, 0.05f);
        }
        int num71 = 80;
        int num72 = height;
        Vector2 vector14 = new Vector2(base.Center.X - (float)(num71 / 2), position.Y + (float)height - (float)num72);
        bool flag40 = false;
        if (position.Y + (float)height < targetData.Position.Y + (float)targetData.Height - 16f)
        {
            flag40 = true;
        }
        if (flag40)
        {
            velocity.Y += 0.5f;
        }
        else if (Collision.SolidCollision(vector14, num71, num72) || targetData.Center.Y - base.Center.Y < -100f || (targetData.Center.Y - base.Center.Y < 10f && Math.Abs(targetData.Center.X - base.Center.X) < 60f))
        {
            if (velocity.Y > 0f)
            {
                velocity.Y = 0f;
            }
            if ((double)velocity.Y > -0.2)
            {
                velocity.Y -= 0.025f;
            }
            else
            {
                velocity.Y -= 0.2f;
            }
            if (velocity.Y < -4f)
            {
                velocity.Y = -4f;
            }
        }
        else
        {
            if (velocity.Y < 0f)
            {
                velocity.Y = 0f;
            }
            if ((double)velocity.Y < 0.1)
            {
                velocity.Y += 0.025f;
            }
            else
            {
                velocity.Y += 0.5f;
            }
        }
        if (velocity.Y > 10f)
        {
            velocity.Y = 10f;
        }
        if (num70)
        {
            velocity.Y = 0f;
        }
    }

References System.Math.Abs(), Terraria.Entity.active, Terraria.Player.AddBuff(), Terraria.NPC.ai, Terraria.NPC.alpha, System.array, Terraria.ID.NPCID.Sets.BelongsToInvasionOldOnesArmy, Terraria.Collision.CanHit(), Terraria.Collision.CanHitLine(), Terraria.DelegateMethods.CastLightOpen(), Terraria.Entity.Center, Microsoft.Xna.Framework.MathHelper.Clamp(), Terraria.NPC.collideX, Microsoft.Xna.Framework.Graphics.Color, Terraria.NPC.confused, Terraria.Player.creativeGodMode, Terraria.NPC.damage, Terraria.Main.dayTime, Terraria.ID.SoundID.DD2_DrakinBreathIn, Terraria.ID.SoundID.DD2_DrakinShot, Terraria.ID.SoundID.DD2_EtherianPortalSpawnEnemy, Terraria.ID.SoundID.DD2_GoblinBomberScream, Terraria.ID.SoundID.DD2_GoblinBomberThrow, Terraria.ID.SoundID.DD2_GoblinScream, Terraria.ID.SoundID.DD2_JavelinThrowersAttack, Terraria.ID.SoundID.DD2_JavelinThrowersTaunt, Terraria.ID.SoundID.DD2_KoboldExplosion, Terraria.ID.SoundID.DD2_KoboldIgnite, Terraria.ID.SoundID.DD2_KoboldIgniteLoop, Terraria.ID.SoundID.DD2_KoboldScreamChargeLoop, Terraria.ID.SoundID.DD2_OgreAttack, Terraria.ID.SoundID.DD2_OgreGroundPound, Terraria.ID.SoundID.DD2_OgreRoar, Terraria.ID.SoundID.DD2_OgreSpit, Terraria.ID.SoundID.DD2_WitherBeastAuraPulse, Terraria.ID.SoundID.DD2_WitherBeastCrystalImpact, Terraria.Player.dead, Terraria.Entity.direction, Terraria.Entity.DirectionTo(), Terraria.NPC.directionY, Terraria.Entity.Distance(), Terraria.NPC.dontTakeDamage, Terraria.Main.dust, Terraria.NPC.EncourageDespawn(), Terraria.GameContent.Events.DD2Event.EnemiesShouldChasePlayers, Terraria.ID.NPCID.Sets.FighterUsesDD2PortalAppearEffect, ReLogic.Utilities.SlotId.FromFloat(), Terraria.Audio.SoundEngine.GetActiveSound(), Terraria.NPC.GetAttackDamage_ForProjectiles(), Terraria.NPC.GetAttackDamage_ScaledByStrength(), Terraria.Utils.GetLerpValue(), Terraria.NPC.GetSpawnSource_ForProjectile(), Terraria.NPC.GetTargetData(), Terraria.NPC.GetTileCollisionParameters(), Terraria.Framing.GetTileSafely(), Terraria.NPC.gfxOffY, Terraria.Main.gore, Terraria.NPC.HasValidTarget, Terraria.NPC.HealEffect(), Terraria.Entity.height, Terraria.NPC.HitEffect(), Terraria.NPC.HitSound, ReLogic.Utilities.SlotId.Invalid, Terraria.WorldGen.InWorld(), Terraria.NPC.justHit, Terraria.WorldGen.KillTile(), Microsoft.Xna.Framework.MathHelper.Lerp(), Microsoft.Xna.Framework.Vector2.Lerp(), Terraria.NPC.life, Terraria.NPC.lifeMax, Terraria.NPC.localAI, Terraria.Main.maxTilesX, Terraria.Main.maxTilesY, Terraria.Main.myPlayer, Terraria.Tile.nactive(), Terraria.NPC.netAlways, Terraria.Main.netMode, Terraria.NPC.netOffset, Terraria.NPC.netUpdate, Terraria.Dust.NewDust(), Terraria.Dust.NewDustDirect(), Terraria.Dust.NewDustPerfect(), Terraria.Gore.NewGore(), Terraria.Gore.NewGoreDirect(), Terraria.Projectile.NewProjectile(), Terraria.NPC.noGravity, Terraria.NPC.noTileCollide, Terraria.Main.npc, Terraria.Entity.oldPosition, Terraria.Entity.oldVelocity, Terraria.WorldGen.OpenDoor(), System.Math.PI, Terraria.Main.player, Terraria.Audio.SoundEngine.PlayTrackedSound(), Terraria.Utils.PlotTileLine(), Terraria.Entity.position, Terraria.Main.rand, Terraria.Utils.RandomVector2(), Terraria.NetMessage.SendData(), Terraria.WorldGen.ShiftTallGate(), System.Math.Sign(), Terraria.Collision.SolidCollision(), Terraria.WorldGen.SolidTile(), Terraria.NPC.spriteDirection, Terraria.NPC.stepSpeed, Terraria.Collision.StepUp(), Terraria.NPC.TargetClosest(), Terraria.Utilities.NPCUtils.TargetClosestCommon(), Terraria.Utilities.NPCUtils.TargetClosestOldOnesInvasion(), Terraria.Main.tile, Terraria.Main.tileSolid, Terraria.NPC.TranslatedTargetIndex, Microsoft.Xna.Framework.Color.Transparent, Terraria.NPC.type, Terraria.Tile.type, Microsoft.Xna.Framework.Vector2.UnitX, Microsoft.Xna.Framework.Vector2.UnitY, Terraria.NPC.value, Microsoft.Xna.Framework.Graphics.Vector2, Microsoft.Xna.Framework.Graphics.Vector3, Terraria.Entity.velocity, Terraria.Entity.wet, Terraria.Entity.whoAmI, Terraria.Entity.width, Microsoft.Xna.Framework.Vector2.X, Microsoft.Xna.Framework.Vector2.Y, and Microsoft.Xna.Framework.Vector2.Zero.

Referenced by Terraria.NPC.AI().