AI_069_DukeFishron()

void Terraria.NPC.AI_069_DukeFishron ( )

inlineprivate

Definition at line 41994 of file NPC.cs.

    {
        bool expertMode = Main.expertMode;
        float num = (expertMode ? 1.2f : 1f);
        bool flag = (double)life <= (double)lifeMax * 0.5;
        bool flag2 = expertMode && (double)life <= (double)lifeMax * 0.15;
        bool flag3 = ai[0] > 4f;
        bool flag4 = ai[0] > 9f;
        bool flag5 = ai[3] < 10f;
        if (flag4)
        {
            damage = (int)((float)defDamage * 1.1f * num);
            defense = 0;
        }
        else if (flag3)
        {
            damage = (int)((float)defDamage * 1.2f * num);
            defense = (int)((float)defDefense * 0.8f);
        }
        else
        {
            damage = defDamage;
            defense = defDefense;
        }
        int num2 = (expertMode ? 40 : 60);
        float num3 = (expertMode ? 0.55f : 0.45f);
        float num4 = (expertMode ? 8.5f : 7.5f);
        if (flag4)
        {
            num3 = 0.7f;
            num4 = 12f;
            num2 = 30;
        }
        else if (flag3 && flag5)
        {
            num3 = (expertMode ? 0.6f : 0.5f);
            num4 = (expertMode ? 10f : 8f);
            num2 = (expertMode ? 40 : 20);
        }
        else if (flag5 && !flag3 && !flag4)
        {
            num2 = 30;
        }
        int num5 = (expertMode ? 28 : 30);
        float num6 = (expertMode ? 17f : 16f);
        if (flag4)
        {
            num5 = 25;
            num6 = 27f;
        }
        else if (flag5 && flag3)
        {
            num5 = (expertMode ? 27 : 30);
            if (expertMode)
            {
                num6 = 21f;
            }
        }
        int num7 = 80;
        int num8 = 4;
        float num9 = 0.3f;
        float num10 = 5f;
        int num11 = 90;
        int num12 = 180;
        int num13 = 180;
        int num14 = 30;
        int num15 = 120;
        int num16 = 4;
        float num17 = 6f;
        float num18 = 20f;
        float num19 = (float)Math.PI * 2f / (float)(num15 / 2);
        int num20 = 75;
        Vector2 center = base.Center;
        Player player = Main.player[target];
        if (target < 0 || target == 255 || player.dead || !player.active || Vector2.Distance(player.Center, center) > 5600f)
        {
            TargetClosest();
            player = Main.player[target];
            netUpdate = true;
        }
        if (player.dead || Vector2.Distance(player.Center, center) > 5600f)
        {
            velocity.Y -= 0.4f;
            EncourageDespawn(10);
            if (ai[0] > 4f)
            {
                ai[0] = 5f;
            }
            else
            {
                ai[0] = 0f;
            }
            ai[2] = 0f;
        }
        bool flag6 = player.position.Y < 800f || (double)player.position.Y > Main.worldSurface * 16.0 || (player.position.X > 6400f && player.position.X < (float)(Main.maxTilesX * 16 - 6400));
        if (flag6)
        {
            num2 = 10;
            damage = defDamage * 2;
            defense = defDefense * 2;
            num6 += 6f;
        }
        bool flag7 = true;
        if (localAI[0] == 0f)
        {
            localAI[0] = 1f;
            alpha = 255;
            rotation = 0f;
            if (Main.netMode != 1)
            {
                ai[0] = -1f;
                netUpdate = true;
            }
        }
        float num21 = (float)Math.Atan2(player.Center.Y - center.Y, player.Center.X - center.X);
        if (spriteDirection == 1)
        {
            num21 += (float)Math.PI;
        }
        if (num21 < 0f)
        {
            num21 += (float)Math.PI * 2f;
        }
        if (num21 > (float)Math.PI * 2f)
        {
            num21 -= (float)Math.PI * 2f;
        }
        if (ai[0] == -1f)
        {
            num21 = 0f;
        }
        if (ai[0] == 3f)
        {
            num21 = 0f;
        }
        if (ai[0] == 4f)
        {
            num21 = 0f;
        }
        if (ai[0] == 8f)
        {
            num21 = 0f;
        }
        float num22 = 0.04f;
        if (ai[0] == 1f || ai[0] == 6f)
        {
            num22 = 0f;
        }
        if (ai[0] == 7f)
        {
            num22 = 0f;
        }
        if (ai[0] == 3f)
        {
            num22 = 0.01f;
        }
        if (ai[0] == 4f)
        {
            num22 = 0.01f;
        }
        if (ai[0] == 8f)
        {
            num22 = 0.01f;
        }
        if (rotation < num21)
        {
            if ((double)(num21 - rotation) > Math.PI)
            {
                rotation -= num22;
            }
            else
            {
                rotation += num22;
            }
        }
        if (rotation > num21)
        {
            if ((double)(rotation - num21) > Math.PI)
            {
                rotation += num22;
            }
            else
            {
                rotation -= num22;
            }
        }
        if (rotation > num21 - num22 && rotation < num21 + num22)
        {
            rotation = num21;
        }
        if (rotation < 0f)
        {
            rotation += (float)Math.PI * 2f;
        }
        if (rotation > (float)Math.PI * 2f)
        {
            rotation -= (float)Math.PI * 2f;
        }
        if (rotation > num21 - num22 && rotation < num21 + num22)
        {
            rotation = num21;
        }
        if (ai[0] != -1f && ai[0] < 9f)
        {
            if (Collision.SolidCollision(position, width, height))
            {
                alpha += 15;
            }
            else
            {
                alpha -= 15;
            }
            if (alpha < 0)
            {
                alpha = 0;
            }
            if (alpha > 150)
            {
                alpha = 150;
            }
        }
        if (ai[0] == -1f)
        {
            flag7 = false;
            velocity *= 0.98f;
            int num23 = Math.Sign(player.Center.X - center.X);
            if (num23 != 0)
            {
                direction = num23;
                spriteDirection = -direction;
            }
            if (ai[2] > 20f)
            {
                velocity.Y = -2f;
                alpha -= 5;
                if (Collision.SolidCollision(position, width, height))
                {
                    alpha += 15;
                }
                if (alpha < 0)
                {
                    alpha = 0;
                }
                if (alpha > 150)
                {
                    alpha = 150;
                }
            }
            if (ai[2] == (float)(num11 - 30))
            {
                int num24 = 36;
                for (int i = 0; i < num24; i++)
                {
                    Vector2 vector = (Vector2.Normalize(velocity) * new Vector2((float)width / 2f, height) * 0.75f * 0.5f).RotatedBy((float)(i - (num24 / 2 - 1)) * ((float)Math.PI * 2f) / (float)num24) + base.Center;
                    Vector2 vector2 = vector - base.Center;
                    int num25 = Dust.NewDust(vector + vector2, 0, 0, 172, vector2.X * 2f, vector2.Y * 2f, 100, default(Color), 1.4f);
                    Main.dust[num25].noGravity = true;
                    Main.dust[num25].noLight = true;
                    Main.dust[num25].velocity = Vector2.Normalize(vector2) * 3f;
                }
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num20)
            {
                ai[0] = 0f;
                ai[1] = 0f;
                ai[2] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 0f && !player.dead)
        {
            if (ai[1] == 0f)
            {
                ai[1] = 300 * Math.Sign((center - player.Center).X);
            }
            Vector2 vector3 = Vector2.Normalize(player.Center + new Vector2(ai[1], -200f) - center - velocity) * num4;
            if (velocity.X < vector3.X)
            {
                velocity.X += num3;
                if (velocity.X < 0f && vector3.X > 0f)
                {
                    velocity.X += num3;
                }
            }
            else if (velocity.X > vector3.X)
            {
                velocity.X -= num3;
                if (velocity.X > 0f && vector3.X < 0f)
                {
                    velocity.X -= num3;
                }
            }
            if (velocity.Y < vector3.Y)
            {
                velocity.Y += num3;
                if (velocity.Y < 0f && vector3.Y > 0f)
                {
                    velocity.Y += num3;
                }
            }
            else if (velocity.Y > vector3.Y)
            {
                velocity.Y -= num3;
                if (velocity.Y > 0f && vector3.Y < 0f)
                {
                    velocity.Y -= num3;
                }
            }
            int num26 = Math.Sign(player.Center.X - center.X);
            if (num26 != 0)
            {
                if (ai[2] == 0f && num26 != direction)
                {
                    rotation += (float)Math.PI;
                }
                direction = num26;
                if (spriteDirection != -direction)
                {
                    rotation += (float)Math.PI;
                }
                spriteDirection = -direction;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num2)
            {
                int num27 = 0;
                switch ((int)ai[3])
                {
                case 0:
                case 1:
                case 2:
                case 3:
                case 4:
                case 5:
                case 6:
                case 7:
                case 8:
                case 9:
                    num27 = 1;
                    break;
                case 10:
                    ai[3] = 1f;
                    num27 = 2;
                    break;
                case 11:
                    ai[3] = 0f;
                    num27 = 3;
                    break;
                }
                if (flag6 && num27 == 2)
                {
                    num27 = 3;
                }
                if (flag)
                {
                    num27 = 4;
                }
                switch (num27)
                {
                case 1:
                    ai[0] = 1f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    velocity = Vector2.Normalize(player.Center - center) * num6;
                    rotation = (float)Math.Atan2(velocity.Y, velocity.X);
                    if (num26 != 0)
                    {
                        direction = num26;
                        if (spriteDirection == 1)
                        {
                            rotation += (float)Math.PI;
                        }
                        spriteDirection = -direction;
                    }
                    break;
                case 2:
                    ai[0] = 2f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                case 3:
                    ai[0] = 3f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    if (flag6)
                    {
                        ai[2] = num11 - 40;
                    }
                    break;
                case 4:
                    ai[0] = 4f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                }
                netUpdate = true;
            }
        }
        else if (ai[0] == 1f)
        {
            int num28 = 7;
            for (int j = 0; j < num28; j++)
            {
                Vector2 vector4 = (Vector2.Normalize(velocity) * new Vector2((float)(width + 50) / 2f, height) * 0.75f).RotatedBy((double)(j - (num28 / 2 - 1)) * Math.PI / (double)(float)num28) + center;
                Vector2 vector5 = ((float)(Main.rand.NextDouble() * 3.1415927410125732) - (float)Math.PI / 2f).ToRotationVector2() * Main.rand.Next(3, 8);
                int num29 = Dust.NewDust(vector4 + vector5, 0, 0, 172, vector5.X * 2f, vector5.Y * 2f, 100, default(Color), 1.4f);
                Main.dust[num29].noGravity = true;
                Main.dust[num29].noLight = true;
                Main.dust[num29].velocity /= 4f;
                Main.dust[num29].velocity -= velocity;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num5)
            {
                ai[0] = 0f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] += 2f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 2f)
        {
            if (ai[1] == 0f)
            {
                ai[1] = 300 * Math.Sign((center - player.Center).X);
            }
            Vector2 vector6 = Vector2.Normalize(player.Center + new Vector2(ai[1], -200f) - center - velocity) * num10;
            if (velocity.X < vector6.X)
            {
                velocity.X += num9;
                if (velocity.X < 0f && vector6.X > 0f)
                {
                    velocity.X += num9;
                }
            }
            else if (velocity.X > vector6.X)
            {
                velocity.X -= num9;
                if (velocity.X > 0f && vector6.X < 0f)
                {
                    velocity.X -= num9;
                }
            }
            if (velocity.Y < vector6.Y)
            {
                velocity.Y += num9;
                if (velocity.Y < 0f && vector6.Y > 0f)
                {
                    velocity.Y += num9;
                }
            }
            else if (velocity.Y > vector6.Y)
            {
                velocity.Y -= num9;
                if (velocity.Y > 0f && vector6.Y < 0f)
                {
                    velocity.Y -= num9;
                }
            }
            if (ai[2] == 0f)
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            if (ai[2] % (float)num8 == 0f)
            {
                SoundEngine.PlaySound(4, (int)base.Center.X, (int)base.Center.Y, 19);
                if (Main.netMode != 1)
                {
                    Vector2 vector7 = Vector2.Normalize(player.Center - center) * (width + 20) / 2f + center;
                    NewNPC(GetSpawnSourceForNPCFromNPCAI(), (int)vector7.X, (int)vector7.Y + 45, 371);
                }
            }
            int num30 = Math.Sign(player.Center.X - center.X);
            if (num30 != 0)
            {
                direction = num30;
                if (spriteDirection != -direction)
                {
                    rotation += (float)Math.PI;
                }
                spriteDirection = -direction;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num7)
            {
                ai[0] = 0f;
                ai[1] = 0f;
                ai[2] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 3f)
        {
            velocity *= 0.98f;
            velocity.Y = MathHelper.Lerp(velocity.Y, 0f, 0.02f);
            if (ai[2] == (float)(num11 - 30))
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 9);
            }
            if (Main.netMode != 1 && ai[2] == (float)(num11 - 30))
            {
                Vector2 vector8 = rotation.ToRotationVector2() * (Vector2.UnitX * direction) * (width + 20) / 2f + center;
                Projectile.NewProjectile(GetSpawnSource_ForProjectile(), vector8.X, vector8.Y, direction * 2, 8f, 385, 0, 0f, Main.myPlayer);
                Projectile.NewProjectile(GetSpawnSource_ForProjectile(), vector8.X, vector8.Y, -direction * 2, 8f, 385, 0, 0f, Main.myPlayer);
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num11)
            {
                ai[0] = 0f;
                ai[1] = 0f;
                ai[2] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 4f)
        {
            flag7 = false;
            velocity *= 0.98f;
            velocity.Y = MathHelper.Lerp(velocity.Y, 0f, 0.02f);
            if (ai[2] == (float)(num12 - 60))
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num12)
            {
                ai[0] = 5f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 5f && !player.dead)
        {
            if (ai[1] == 0f)
            {
                ai[1] = 300 * Math.Sign((center - player.Center).X);
            }
            Vector2 vector9 = Vector2.Normalize(player.Center + new Vector2(ai[1], -200f) - center - velocity) * num4;
            if (velocity.X < vector9.X)
            {
                velocity.X += num3;
                if (velocity.X < 0f && vector9.X > 0f)
                {
                    velocity.X += num3;
                }
            }
            else if (velocity.X > vector9.X)
            {
                velocity.X -= num3;
                if (velocity.X > 0f && vector9.X < 0f)
                {
                    velocity.X -= num3;
                }
            }
            if (velocity.Y < vector9.Y)
            {
                velocity.Y += num3;
                if (velocity.Y < 0f && vector9.Y > 0f)
                {
                    velocity.Y += num3;
                }
            }
            else if (velocity.Y > vector9.Y)
            {
                velocity.Y -= num3;
                if (velocity.Y > 0f && vector9.Y < 0f)
                {
                    velocity.Y -= num3;
                }
            }
            int num31 = Math.Sign(player.Center.X - center.X);
            if (num31 != 0)
            {
                if (ai[2] == 0f && num31 != direction)
                {
                    rotation += (float)Math.PI;
                }
                direction = num31;
                if (spriteDirection != -direction)
                {
                    rotation += (float)Math.PI;
                }
                spriteDirection = -direction;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num2)
            {
                int num32 = 0;
                switch ((int)ai[3])
                {
                case 0:
                case 1:
                case 2:
                case 3:
                case 4:
                case 5:
                    num32 = 1;
                    break;
                case 6:
                    ai[3] = 1f;
                    num32 = 2;
                    break;
                case 7:
                    ai[3] = 0f;
                    num32 = 3;
                    break;
                }
                if (flag2)
                {
                    num32 = 4;
                }
                if (flag6 && num32 == 2)
                {
                    num32 = 3;
                }
                switch (num32)
                {
                case 1:
                    ai[0] = 6f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    velocity = Vector2.Normalize(player.Center - center) * num6;
                    rotation = (float)Math.Atan2(velocity.Y, velocity.X);
                    if (num31 != 0)
                    {
                        direction = num31;
                        if (spriteDirection == 1)
                        {
                            rotation += (float)Math.PI;
                        }
                        spriteDirection = -direction;
                    }
                    break;
                case 2:
                    velocity = Vector2.Normalize(player.Center - center) * num18;
                    rotation = (float)Math.Atan2(velocity.Y, velocity.X);
                    if (num31 != 0)
                    {
                        direction = num31;
                        if (spriteDirection == 1)
                        {
                            rotation += (float)Math.PI;
                        }
                        spriteDirection = -direction;
                    }
                    ai[0] = 7f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                case 3:
                    ai[0] = 8f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                case 4:
                    ai[0] = 9f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                }
                netUpdate = true;
            }
        }
        else if (ai[0] == 6f)
        {
            int num33 = 7;
            for (int k = 0; k < num33; k++)
            {
                Vector2 vector10 = (Vector2.Normalize(velocity) * new Vector2((float)(width + 50) / 2f, height) * 0.75f).RotatedBy((double)(k - (num33 / 2 - 1)) * Math.PI / (double)(float)num33) + center;
                Vector2 vector11 = ((float)(Main.rand.NextDouble() * 3.1415927410125732) - (float)Math.PI / 2f).ToRotationVector2() * Main.rand.Next(3, 8);
                int num34 = Dust.NewDust(vector10 + vector11, 0, 0, 172, vector11.X * 2f, vector11.Y * 2f, 100, default(Color), 1.4f);
                Main.dust[num34].noGravity = true;
                Main.dust[num34].noLight = true;
                Main.dust[num34].velocity /= 4f;
                Main.dust[num34].velocity -= velocity;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num5)
            {
                ai[0] = 5f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] += 2f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 7f)
        {
            if (ai[2] == 0f)
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            if (ai[2] % (float)num16 == 0f)
            {
                SoundEngine.PlaySound(4, (int)base.Center.X, (int)base.Center.Y, 19);
                if (Main.netMode != 1)
                {
                    Vector2 vector12 = Vector2.Normalize(velocity) * (width + 20) / 2f + center;
                    int num35 = NewNPC(GetSpawnSourceForNPCFromNPCAI(), (int)vector12.X, (int)vector12.Y + 45, 371);
                    Main.npc[num35].target = target;
                    Main.npc[num35].velocity = Vector2.Normalize(velocity).RotatedBy((float)Math.PI / 2f * (float)direction) * num17;
                    Main.npc[num35].netUpdate = true;
                    Main.npc[num35].ai[3] = (float)Main.rand.Next(80, 121) / 100f;
                }
            }
            velocity = velocity.RotatedBy((0f - num19) * (float)direction);
            rotation -= num19 * (float)direction;
            ai[2] += 1f;
            if (ai[2] >= (float)num15)
            {
                ai[0] = 5f;
                ai[1] = 0f;
                ai[2] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 8f)
        {
            velocity *= 0.98f;
            velocity.Y = MathHelper.Lerp(velocity.Y, 0f, 0.02f);
            if (ai[2] == (float)(num11 - 30))
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            if (Main.netMode != 1 && ai[2] == (float)(num11 - 30))
            {
                Projectile.NewProjectile(GetSpawnSource_ForProjectile(), center.X, center.Y, 0f, 0f, 385, 0, 0f, Main.myPlayer, 1f, target + 1, flag6 ? 1 : 0);
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num11)
            {
                ai[0] = 5f;
                ai[1] = 0f;
                ai[2] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 9f)
        {
            flag7 = false;
            if (ai[2] < (float)(num13 - 90))
            {
                if (Collision.SolidCollision(position, width, height))
                {
                    alpha += 15;
                }
                else
                {
                    alpha -= 15;
                }
                if (alpha < 0)
                {
                    alpha = 0;
                }
                if (alpha > 150)
                {
                    alpha = 150;
                }
            }
            else if (alpha < 255)
            {
                alpha += 4;
                if (alpha > 255)
                {
                    alpha = 255;
                }
            }
            velocity *= 0.98f;
            velocity.Y = MathHelper.Lerp(velocity.Y, 0f, 0.02f);
            if (ai[2] == (float)(num13 - 60))
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num13)
            {
                ai[0] = 10f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] = 0f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 10f && !player.dead)
        {
            chaseable = false;
            if (alpha < 255)
            {
                alpha += 25;
                if (alpha > 255)
                {
                    alpha = 255;
                }
            }
            if (ai[1] == 0f)
            {
                ai[1] = 360 * Math.Sign((center - player.Center).X);
            }
            Vector2 desiredVelocity = Vector2.Normalize(player.Center + new Vector2(ai[1], -200f) - center - velocity) * num4;
            SimpleFlyMovement(desiredVelocity, num3);
            int num36 = Math.Sign(player.Center.X - center.X);
            if (num36 != 0)
            {
                if (ai[2] == 0f && num36 != direction)
                {
                    rotation += (float)Math.PI;
                    for (int l = 0; l < oldPos.Length; l++)
                    {
                        oldPos[l] = Vector2.Zero;
                    }
                }
                direction = num36;
                if (spriteDirection != -direction)
                {
                    rotation += (float)Math.PI;
                }
                spriteDirection = -direction;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num2)
            {
                int num37 = 0;
                switch ((int)ai[3])
                {
                case 0:
                case 2:
                case 3:
                case 5:
                case 6:
                case 7:
                    num37 = 1;
                    break;
                case 1:
                case 4:
                case 8:
                    num37 = 2;
                    break;
                }
                switch (num37)
                {
                case 1:
                    ai[0] = 11f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    velocity = Vector2.Normalize(player.Center - center) * num6;
                    rotation = (float)Math.Atan2(velocity.Y, velocity.X);
                    if (num36 != 0)
                    {
                        direction = num36;
                        if (spriteDirection == 1)
                        {
                            rotation += (float)Math.PI;
                        }
                        spriteDirection = -direction;
                    }
                    break;
                case 2:
                    ai[0] = 12f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                case 3:
                    ai[0] = 13f;
                    ai[1] = 0f;
                    ai[2] = 0f;
                    break;
                }
                netUpdate = true;
            }
        }
        else if (ai[0] == 11f)
        {
            chaseable = true;
            alpha -= 25;
            if (alpha < 0)
            {
                alpha = 0;
            }
            int num38 = 7;
            for (int m = 0; m < num38; m++)
            {
                Vector2 vector13 = (Vector2.Normalize(velocity) * new Vector2((float)(width + 50) / 2f, height) * 0.75f).RotatedBy((double)(m - (num38 / 2 - 1)) * Math.PI / (double)(float)num38) + center;
                Vector2 vector14 = ((float)(Main.rand.NextDouble() * 3.1415927410125732) - (float)Math.PI / 2f).ToRotationVector2() * Main.rand.Next(3, 8);
                int num39 = Dust.NewDust(vector13 + vector14, 0, 0, 172, vector14.X * 2f, vector14.Y * 2f, 100, default(Color), 1.4f);
                Main.dust[num39].noGravity = true;
                Main.dust[num39].noLight = true;
                Main.dust[num39].velocity /= 4f;
                Main.dust[num39].velocity -= velocity;
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num5)
            {
                ai[0] = 10f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] += 1f;
                netUpdate = true;
            }
        }
        else if (ai[0] == 12f)
        {
            flag7 = false;
            chaseable = false;
            if (alpha < 255)
            {
                alpha += 17;
                if (alpha > 255)
                {
                    alpha = 255;
                }
            }
            velocity *= 0.98f;
            velocity.Y = MathHelper.Lerp(velocity.Y, 0f, 0.02f);
            if (ai[2] == (float)(num14 / 2))
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            if (Main.netMode != 1 && ai[2] == (float)(num14 / 2))
            {
                if (ai[1] == 0f)
                {
                    ai[1] = 300 * Math.Sign((center - player.Center).X);
                }
                Vector2 vector15 = player.Center + new Vector2(0f - ai[1], -200f);
                Vector2 vector17 = (base.Center = vector15);
                center = vector17;
                int num40 = Math.Sign(player.Center.X - center.X);
                if (num40 != 0)
                {
                    if (ai[2] == 0f && num40 != direction)
                    {
                        rotation += (float)Math.PI;
                        for (int n = 0; n < oldPos.Length; n++)
                        {
                            oldPos[n] = Vector2.Zero;
                        }
                    }
                    direction = num40;
                    if (spriteDirection != -direction)
                    {
                        rotation += (float)Math.PI;
                    }
                    spriteDirection = -direction;
                }
            }
            ai[2] += 1f;
            if (ai[2] >= (float)num14)
            {
                ai[0] = 10f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] += 1f;
                if (ai[3] >= 9f)
                {
                    ai[3] = 0f;
                }
                netUpdate = true;
            }
        }
        else if (ai[0] == 13f)
        {
            if (ai[2] == 0f)
            {
                SoundEngine.PlaySound(29, (int)center.X, (int)center.Y, 20);
            }
            velocity = velocity.RotatedBy((0f - num19) * (float)direction);
            rotation -= num19 * (float)direction;
            ai[2] += 1f;
            if (ai[2] >= (float)num15)
            {
                ai[0] = 10f;
                ai[1] = 0f;
                ai[2] = 0f;
                ai[3] += 1f;
                netUpdate = true;
            }
        }
        dontTakeDamage = !flag7;
    }

References Terraria.Entity.active, Terraria.NPC.ai, Terraria.NPC.alpha, System.Math.Atan2(), Terraria.Entity.Center, Terraria.NPC.chaseable, Terraria.NPC.damage, Terraria.Player.dead, Terraria.NPC.defDamage, Terraria.NPC.defDefense, Terraria.NPC.defense, Terraria.Entity.direction, Microsoft.Xna.Framework.Vector2.Distance(), Terraria.NPC.dontTakeDamage, Terraria.Main.dust, Terraria.NPC.EncourageDespawn(), Terraria.Main.expertMode, Terraria.NPC.GetSpawnSource_ForProjectile(), Terraria.NPC.GetSpawnSourceForNPCFromNPCAI(), Terraria.Entity.height, Microsoft.Xna.Framework.Vector2.Length(), Microsoft.Xna.Framework.MathHelper.Lerp(), Terraria.NPC.life, Terraria.NPC.lifeMax, Terraria.NPC.localAI, Terraria.Main.myPlayer, Terraria.Main.netMode, Terraria.NPC.netUpdate, Terraria.Dust.NewDust(), Terraria.NPC.NewNPC(), Terraria.Projectile.NewProjectile(), Microsoft.Xna.Framework.Vector2.Normalize(), Terraria.Main.npc, Terraria.NPC.oldPos, System.Math.PI, Terraria.Main.player, Terraria.Audio.SoundEngine.PlaySound(), Terraria.Entity.position, Terraria.Main.rand, Terraria.NPC.rotation, System.Math.Sign(), Terraria.NPC.SimpleFlyMovement(), Terraria.Collision.SolidCollision(), Terraria.NPC.spriteDirection, Terraria.NPC.target, Terraria.NPC.TargetClosest(), Microsoft.Xna.Framework.Graphics.Vector2, Terraria.Entity.velocity, Terraria.Entity.width, Terraria.Main.worldSurface, Microsoft.Xna.Framework.Vector2.X, Microsoft.Xna.Framework.Vector2.Y, and Microsoft.Xna.Framework.Vector2.Zero.

Referenced by Terraria.NPC.AI().