protected bool IsTouchingBottom(MmtStaticSprite sprite)
{
return(Rectangle.Top + this.Velocity.Y < sprite.Rectangle.Bottom &&
Rectangle.Bottom > sprite.Rectangle.Bottom &&
Rectangle.Right > sprite.Rectangle.Left &&
Rectangle.Left < sprite.Rectangle.Right);
}
private bool PerPixelCollision(MmtStaticSprite target)
{
var sourceColors = new Color[_texture.Width * _texture.Height];
_texture.GetData(sourceColors);
var targetColors = new Color[target._texture.Width * target._texture.Height];
target._texture.GetData(targetColors);
var left = Math.Max(Rectangle.Left, target.Rectangle.Left);
var top = Math.Max(Rectangle.Top, target.Rectangle.Top);
var width = Math.Min(Rectangle.Right, target.Rectangle.Right) - left;
var height = Math.Min(Rectangle.Bottom, target.Rectangle.Bottom) - top;
var intersectingRectangle = new Rectangle(left, top, width, height);
for (var x = intersectingRectangle.Left; x < intersectingRectangle.Right; x++)
{
for (var y = intersectingRectangle.Top; y < intersectingRectangle.Bottom; y++)
{
var sourceColor = sourceColors[(x - Rectangle.Left) + (y - Rectangle.Top) * _texture.Width];
var targetColor = targetColors[(x - target.Rectangle.Left) + (y - target.Rectangle.Top) * target._texture.Width];
if (sourceColor.A != 0 && targetColor.A != 0)
{
return(true);
}
}
}
return(false);
}
protected bool IsTouchingRight(MmtStaticSprite sprite)
{
return(Rectangle.Left + this.Velocity.X < sprite.Rectangle.Right &&
Rectangle.Right > sprite.Rectangle.Right &&
Rectangle.Bottom > sprite.Rectangle.Top &&
Rectangle.Top < sprite.Rectangle.Bottom);
}
