FindCollisionTile()

static List< Point > Terraria.Collision.FindCollisionTile ( int Direction, Vector2 position, float testMagnitude, int Width, int Height, bool fallThrough = false, bool fall2 = false, int gravDir = 1, bool checkCardinals = true, bool checkSlopes = false )

inlinestatic

Definition at line 2110 of file Collision.cs.

    {
        List<Point> list = new List<Point>();
        if ((uint)Direction > 1u)
        {
            if ((uint)(Direction - 2) <= 1u)
            {
                Vector2 vector = ((Direction == 2) ? (Vector2.UnitY * testMagnitude) : (-Vector2.UnitY * testMagnitude));
                Vector4 vec = new Vector4(position, vector.X, vector.Y);
                int y = (int)(position.Y + (float)((Direction == 2) ? Height : 0)) / 16;
                float num = Math.Min(16f - position.X % 16f, Width);
                float num2 = num;
                if (checkCardinals && TileCollision(position - vector, vector, (int)num, Height, fallThrough, fall2, gravDir) != vector)
                {
                    list.Add(new Point((int)position.X / 16, y));
                }
                else if (checkSlopes && SlopeCollision(position, vector, (int)num, Height, gravDir, fallThrough).YZW() != vec.YZW())
                {
                    list.Add(new Point((int)position.X / 16, y));
                }
                for (; num2 + 16f <= (float)(Width - 16); num2 += 16f)
                {
                    if (checkCardinals && TileCollision(position - vector + Vector2.UnitX * num2, vector, 16, Height, fallThrough, fall2, gravDir) != vector)
                    {
                        list.Add(new Point((int)(position.X + num2) / 16, y));
                    }
                    else if (checkSlopes && SlopeCollision(position + Vector2.UnitX * num2, vector, 16, Height, gravDir, fallThrough).YZW() != vec.YZW())
                    {
                        list.Add(new Point((int)(position.X + num2) / 16, y));
                    }
                }
                int width = Width - (int)num2;
                if (checkCardinals && TileCollision(position - vector + Vector2.UnitX * num2, vector, width, Height, fallThrough, fall2, gravDir) != vector)
                {
                    list.Add(new Point((int)(position.X + num2) / 16, y));
                }
                else if (checkSlopes && SlopeCollision(position + Vector2.UnitX * num2, vector, width, Height, gravDir, fallThrough).YZW() != vec.YZW())
                {
                    list.Add(new Point((int)(position.X + num2) / 16, y));
                }
            }
        }
        else
        {
            Vector2 vector = ((Direction == 0) ? (Vector2.UnitX * testMagnitude) : (-Vector2.UnitX * testMagnitude));
            Vector4 vec = new Vector4(position, vector.X, vector.Y);
            int y = (int)(position.X + (float)((Direction == 0) ? Width : 0)) / 16;
            float num3 = Math.Min(16f - position.Y % 16f, Height);
            float num4 = num3;
            if (checkCardinals && TileCollision(position - vector, vector, Width, (int)num3, fallThrough, fall2, gravDir) != vector)
            {
                list.Add(new Point(y, (int)position.Y / 16));
            }
            else if (checkSlopes && SlopeCollision(position, vector, Width, (int)num3, gravDir, fallThrough).XZW() != vec.XZW())
            {
                list.Add(new Point(y, (int)position.Y / 16));
            }
            for (; num4 + 16f <= (float)(Height - 16); num4 += 16f)
            {
                if (checkCardinals && TileCollision(position - vector + Vector2.UnitY * num4, vector, Width, 16, fallThrough, fall2, gravDir) != vector)
                {
                    list.Add(new Point(y, (int)(position.Y + num4) / 16));
                }
                else if (checkSlopes && SlopeCollision(position + Vector2.UnitY * num4, vector, Width, 16, gravDir, fallThrough).XZW() != vec.XZW())
                {
                    list.Add(new Point(y, (int)(position.Y + num4) / 16));
                }
            }
            int height = Height - (int)num4;
            if (checkCardinals && TileCollision(position - vector + Vector2.UnitY * num4, vector, Width, height, fallThrough, fall2, gravDir) != vector)
            {
                list.Add(new Point(y, (int)(position.Y + num4) / 16));
            }
            else if (checkSlopes && SlopeCollision(position + Vector2.UnitY * num4, vector, Width, height, gravDir, fallThrough).XZW() != vec.XZW())
            {
                list.Add(new Point(y, (int)(position.Y + num4) / 16));
            }
        }
        return list;
    }

References System.Collections.Generic.Dictionary< TKey, TValue >.Add(), System.list, System.Math.Min(), Terraria.Collision.SlopeCollision(), Terraria.Collision.TileCollision(), Microsoft.Xna.Framework.Vector2.UnitX, Microsoft.Xna.Framework.Vector2.UnitY, Microsoft.Xna.Framework.Vector2.X, and Microsoft.Xna.Framework.Vector2.Y.

Referenced by Terraria.Player.UpdateTouchingTiles().