public virtual bool CollidesWith(CCMaskedSprite target, out CCPoint pt)
{
pt = CCPoint.Zero;
CCAffineTransform affine1 = AffineWorldTransform;
CCAffineTransform affine2 = target.AffineWorldTransform;
CCRect myBBInWorld = BoundingBoxTransformedToWorld;
CCRect targetBBInWorld = target.BoundingBoxTransformedToWorld;
if (!myBBInWorld.IntersectsRect(targetBBInWorld))
{
return (false);
}
// Based upon http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series2D/Putting_CD_into_practice.php
var affine1to2 = affine1 * CCAffineTransform.Invert (affine2);
int width2 = (int)target.ContentSize.Width;
int height2 = (int)target.ContentSize.Height;
int width1 = (int)ContentSize.Width;
int height1 = (int)ContentSize.Height;
byte[] maskA = CollisionMask;
byte[] maskB = target.CollisionMask;
if (maskA == null || maskB == null)
{
return (false);
}
for (int x1 = 0; x1 < width1; x1++)
{
for (int y1 = 0; y1 < height1; y1++)
{
var pos1 = new CCVector2(x1, y1);
var pos2 = CCVector2.Transform (pos1, affine1to2);
int x2 = (int)pos2.X;
int y2 = (int)pos2.Y;
if ((x2 >= 0) && (x2 < width2))
{
if ((y2 >= 0) && (y2 < height2))
{
int iA = x1 + (height1-y1) * width1;
int iB = x2 + (height2-y2) * width2;
if (iA >= maskA.Length || iB >= maskB.Length)
continue;
if (maskA[iA] > 0){
if (maskB[iB] > 0){
CCVector2 screenPos = CCVector2.Transform(pos1, affine1);
pt = new CCPoint(screenPos);
return (true);
}
}
}
}
}
}
return false;
}
public SpriteMaskTest()
{
grossini = new CCMaskedSprite("Images/grossini", GetCollisionMask("grossini"));
ball = new CCMaskedSprite("Images/ball-hd", GetCollisionMask("ball-hd"));
hit = new CCSprite("Images/Icon");
AddChild(grossini, 1);
AddChild(ball, 1);
AddChild(hit, 5);
}
public virtual bool CollidesWith(CCMaskedSprite target, out CCPoint pt)
{
pt = CCPoint.Zero;
CCAffineTransform affine1 = target.AffineLocalTransform;
CCAffineTransform affine2 = target.AffineLocalTransform;
CCRect myBBInWorld = Layer.VisibleBoundsWorldspace;
CCRect targetBBInWorld = target.BoundingBox;
if (!myBBInWorld.IntersectsRect(targetBBInWorld))
{
return(false);
}
// Based upon http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series2D/Putting_CD_into_practice.php
var affine1to2 = affine1 * CCAffineTransform.Invert(affine2);
int width2 = (int)target.ContentSize.Width;
int height2 = (int)target.ContentSize.Height;
int width1 = (int)ContentSize.Width;
int height1 = (int)ContentSize.Height;
byte[] maskA = CollisionMask;
byte[] maskB = target.CollisionMask;
if (maskA == null || maskB == null)
{
return(false);
}
for (int x1 = 0; x1 < width1; x1++)
{
for (int y1 = 0; y1 < height1; y1++)
{
var pos1 = new CCVector2(x1, y1);
var pos2 = CCVector2.Transform(pos1, affine1to2);
int x2 = (int)pos2.X;
int y2 = (int)pos2.Y;
if ((x2 >= 0) && (x2 < width2))
{
if ((y2 >= 0) && (y2 < height2))
{
int iA = x1 + (height1 - y1) * width1;
int iB = x2 + (height2 - y2) * width2;
if (iA >= maskA.Length || iB >= maskB.Length)
{
continue;
}
if (maskA[iA] > 0)
{
if (maskB[iB] > 0)
{
CCVector2 screenPos = CCVector2.Transform(pos1, affine1);
pt = new CCPoint(screenPos);
return(true);
}
}
}
}
}
}
return(false);
}
