private Color[,] TextureTo2DArray(CustomSprite sprite)
{
Color[,] colors2D;
try
{
Color[] colors1D = new Color[sprite._texture.Width * sprite._texture.Height];
sprite._texture.GetData(colors1D);
colors2D = new Color[sprite._texture.Width, sprite._texture.Height];
for (int x = 0; x < sprite._texture.Width; x++)
{
for (int y = 0; y < sprite._texture.Height; y++)
{
colors2D[x, y] = colors1D[x + y * sprite._texture.Width];
}
}
}
catch (IndexOutOfRangeException e)
{
colors2D = null;
}
return(colors2D);
}
public bool Collision(CustomSprite target)
{
var collides = _rectangle.Intersects(target._rectangle) && TexturesCollide(transform, target.transform, target);
Collided = collides;
target.Collided = collides;
return(collides);
}
public bool isCollisionWithSprite(CustomSprite sprite)
{
if (sprite.Collision(this))
{
return(true);
}
return(false);
}
private bool TexturesCollide(Matrix mat1, Matrix mat2, CustomSprite target)
{
Color[,] tex1 = TextureTo2DArray(this);
Color[,] tex2 = TextureTo2DArray(target);
Matrix mat1to2 = mat1 * Matrix.Invert(mat2);
if (tex1 != null && tex2 != null)
{
int width1 = tex1.GetLength(0);
int height1 = tex1.GetLength(1);
int width2 = tex2.GetLength(0);
int height2 = tex2.GetLength(1);
for (int x1 = 0; x1 < width1; x1++)
{
for (int y1 = 0; y1 < height1; y1++)
{
Vector2 pos1 = new Vector2(x1, y1);
Vector2 pos2 = Vector2.Transform(pos1, mat1to2);
int x2 = (int)pos2.X;
int y2 = (int)pos2.Y;
if ((x2 >= 0) && (x2 < width2))
{
if ((y2 >= 0) && (y2 < height2))
{
if (tex1[x1, y1].A > 0)
{
if (tex2[x2, y2].A > 0)
{
Vector2 screenPos = Vector2.Transform(pos1, mat1);
return(true);
}
}
}
}
}
}
}
return(false);
}