public bool PixelTouches(TexturedPrimitive otherPrim, out Vector2 collidePoint)
{
bool touches = PrimitivesTouches(otherPrim);
collidePoint = Position;
if (touches)
{
bool pixelTouch = false;
#region Step 3a.
Vector2 myXDir = ShowVector.RotateVectorByAngle(Vector2.UnitX, RotateAngleInRadian);
Vector2 myYDir = ShowVector.RotateVectorByAngle(Vector2.UnitY, RotateAngleInRadian);
Vector2 otherXDir = ShowVector.RotateVectorByAngle(Vector2.UnitX, otherPrim.RotateAngleInRadian);
Vector2 otherYDir = ShowVector.RotateVectorByAngle(Vector2.UnitY, otherPrim.RotateAngleInRadian);
#endregion
#region Step 3b.
int i = 0;
while ((!pixelTouch) && (i < mImage.Width))
{
int j = 0;
while ((!pixelTouch) && (j < mImage.Height))
{
collidePoint = IndexToCameraPosition(i, j, myXDir, myYDir);
Color myColor = GetColor(i, j);
if (myColor.A > 0)
{
Vector2 otherIndex = otherPrim.CameraPositionToIndex(collidePoint, otherXDir, otherYDir);
int xMin = (int)otherIndex.X;
int yMin = (int)otherIndex.Y;
if ((xMin >= 0) && (xMin < otherPrim.mImage.Width) &&
(yMin >= 0) && (yMin < otherPrim.mImage.Height))
{
pixelTouch = (otherPrim.GetColor(xMin, yMin).A > 0);
}
}
j++;
}
i++;
}
#endregion
touches = pixelTouch;
}
return(touches);
}
public bool PixelTouches(TexturedPrimitive otherPrim, out Vector2 collidePoint)
{
bool touches = PrimitivesTouches(otherPrim);
collidePoint = Position;
if (touches)
{
bool pixelTouch = false;
int i = 0;
while ((!pixelTouch) && (i < mImage.Width))
{
int j = 0;
while ((!pixelTouch) && (j < mImage.Height))
{
collidePoint = IndexToCameraPosition(i, j);
Color myColor = GetColor(i, j);
if (myColor.A > 0)
{
Vector2 otherIndex = otherPrim.CameraPositionToIndex(collidePoint);
int xMin = (int)otherIndex.X;
int yMin = (int)otherIndex.Y;
if ((xMin >= 0) && (xMin < otherPrim.mImage.Width) &&
(yMin >= 0) && (yMin < otherPrim.mImage.Height))
{
pixelTouch = (otherPrim.GetColor(xMin, yMin).A > 0);
}
}
j++;
}
i++;
}
touches = pixelTouch;
}
return(touches);
}