CanHitLine()

static bool Terraria.Collision.CanHitLine ( Vector2 Position1, int Width1, int Height1, Vector2 Position2, int Width2, int Height2 )

inlinestatic

Definition at line 551 of file Collision.cs.

    {
        int num = (int)((Position1.X + (float)(Width1 / 2)) / 16f);
        int num2 = (int)((Position1.Y + (float)(Height1 / 2)) / 16f);
        int num3 = (int)((Position2.X + (float)(Width2 / 2)) / 16f);
        int num4 = (int)((Position2.Y + (float)(Height2 / 2)) / 16f);
        if (num <= 1)
        {
            num = 1;
        }
        if (num >= Main.maxTilesX)
        {
            num = Main.maxTilesX - 1;
        }
        if (num3 <= 1)
        {
            num3 = 1;
        }
        if (num3 >= Main.maxTilesX)
        {
            num3 = Main.maxTilesX - 1;
        }
        if (num2 <= 1)
        {
            num2 = 1;
        }
        if (num2 >= Main.maxTilesY)
        {
            num2 = Main.maxTilesY - 1;
        }
        if (num4 <= 1)
        {
            num4 = 1;
        }
        if (num4 >= Main.maxTilesY)
        {
            num4 = Main.maxTilesY - 1;
        }
        float num5 = Math.Abs(num - num3);
        float num6 = Math.Abs(num2 - num4);
        if (num5 == 0f && num6 == 0f)
        {
            return true;
        }
        float num7 = 1f;
        float num8 = 1f;
        if (num5 == 0f || num6 == 0f)
        {
            if (num5 == 0f)
            {
                num7 = 0f;
            }
            if (num6 == 0f)
            {
                num8 = 0f;
            }
        }
        else if (num5 > num6)
        {
            num7 = num5 / num6;
        }
        else
        {
            num8 = num6 / num5;
        }
        float num9 = 0f;
        float num10 = 0f;
        int num11 = 1;
        if (num2 < num4)
        {
            num11 = 2;
        }
        int num12 = (int)num5;
        int num13 = (int)num6;
        int num14 = Math.Sign(num3 - num);
        int num15 = Math.Sign(num4 - num2);
        bool flag = false;
        bool flag2 = false;
        try
        {
            do
            {
                switch (num11)
                {
                case 2:
                {
                    num9 += num7;
                    int num17 = (int)num9;
                    num9 %= 1f;
                    for (int j = 0; j < num17; j++)
                    {
                        if (Main.tile[num, num2 - 1] == null)
                        {
                            return false;
                        }
                        if (Main.tile[num, num2] == null)
                        {
                            return false;
                        }
                        if (Main.tile[num, num2 + 1] == null)
                        {
                            return false;
                        }
                        Tile tile4 = Main.tile[num, num2 - 1];
                        Tile tile5 = Main.tile[num, num2 + 1];
                        Tile tile6 = Main.tile[num, num2];
                        if ((!tile4.inActive() && tile4.active() && Main.tileSolid[tile4.type] && !Main.tileSolidTop[tile4.type]) || (!tile5.inActive() && tile5.active() && Main.tileSolid[tile5.type] && !Main.tileSolidTop[tile5.type]) || (!tile6.inActive() && tile6.active() && Main.tileSolid[tile6.type] && !Main.tileSolidTop[tile6.type]))
                        {
                            return false;
                        }
                        if (num12 == 0 && num13 == 0)
                        {
                            flag = true;
                            break;
                        }
                        num += num14;
                        num12--;
                        if (num12 == 0 && num13 == 0 && num17 == 1)
                        {
                            flag2 = true;
                        }
                    }
                    if (num13 != 0)
                    {
                        num11 = 1;
                    }
                    break;
                }
                case 1:
                {
                    num10 += num8;
                    int num16 = (int)num10;
                    num10 %= 1f;
                    for (int i = 0; i < num16; i++)
                    {
                        if (Main.tile[num - 1, num2] == null)
                        {
                            return false;
                        }
                        if (Main.tile[num, num2] == null)
                        {
                            return false;
                        }
                        if (Main.tile[num + 1, num2] == null)
                        {
                            return false;
                        }
                        Tile tile = Main.tile[num - 1, num2];
                        Tile tile2 = Main.tile[num + 1, num2];
                        Tile tile3 = Main.tile[num, num2];
                        if ((!tile.inActive() && tile.active() && Main.tileSolid[tile.type] && !Main.tileSolidTop[tile.type]) || (!tile2.inActive() && tile2.active() && Main.tileSolid[tile2.type] && !Main.tileSolidTop[tile2.type]) || (!tile3.inActive() && tile3.active() && Main.tileSolid[tile3.type] && !Main.tileSolidTop[tile3.type]))
                        {
                            return false;
                        }
                        if (num12 == 0 && num13 == 0)
                        {
                            flag = true;
                            break;
                        }
                        num2 += num15;
                        num13--;
                        if (num12 == 0 && num13 == 0 && num16 == 1)
                        {
                            flag2 = true;
                        }
                    }
                    if (num12 != 0)
                    {
                        num11 = 2;
                    }
                    break;
                }
                }
                if (Main.tile[num, num2] == null)
                {
                    return false;
                }
                Tile tile7 = Main.tile[num, num2];
                if (!tile7.inActive() && tile7.active() && Main.tileSolid[tile7.type] && !Main.tileSolidTop[tile7.type])
                {
                    return false;
                }
            }
            while (!(flag || flag2));
            return true;
        }
        catch
        {
            return false;
        }
    }

References System.Math.Abs(), Terraria.Tile.active(), Terraria.Tile.inActive(), Terraria.Main.maxTilesX, Terraria.Main.maxTilesY, System.Math.Sign(), Terraria.Main.tile, Terraria.Main.tileSolid, Terraria.Main.tileSolidTop, and Terraria.Tile.type.

Referenced by Terraria.NPC.AI(), Terraria.Projectile.AI_001(), Terraria.NPC.AI_003_Fighters(), Terraria.NPC.AI_006_Worms(), Terraria.NPC.AI_007_TownEntities(), Terraria.Projectile.AI_026(), Terraria.Projectile.AI_062(), Terraria.Projectile.AI_100_Medusa(), Terraria.NPC.AI_107_ImprovedWalkers(), Terraria.NPC.AI_109_DarkMage(), Terraria.NPC.AI_121_QueenSlime(), Terraria.Projectile.AI_130_FlameBurstTower_FindTarget(), Terraria.Projectile.AI_134_Ballista_FindTarget(), Terraria.Projectile.AI_137_CanHit(), Terraria.NPC.BloodNautilus_CallForHelp(), Terraria.Player.CanHit(), Terraria.Projectile.CanHitWithMeleeWeapon(), Terraria.Projectile.CanHitWithOwnBody(), Terraria.Mount.CastSuperCartLaser(), Terraria.GameContent.UI.EmoteBubble.CheckForNPCsToReactToEmoteBubble(), Terraria.Projectile.Colliding(), Terraria.Projectile.Damage(), Terraria.Projectile.FindTargetWithinRange(), Terraria.Player.GetFarthestSpawnPositionOnLine(), Terraria.WorldGen.GrowMoreVines(), Terraria.Projectile.HandleMovement(), Terraria.NPC.HitEffect(), Terraria.Player.ItemCheck_Shoot(), Terraria.Projectile.Kill(), Terraria.Player.QuickMinecart(), Terraria.Player.QuickMinecartSnap(), Terraria.Player.SpawnHallucination(), Terraria.GameInput.LockOnHelper.Update(), and Terraria.Mount.UpdateEffects().