//-------------------------------------------------------------------------
public bool SetupBinaryImageAndIslands(out int numColliderRegions, out object spriteCollectionDefinition, object spriteCollection, int spriteID)
{
numColliderRegions = 0;
spriteCollectionDefinition = null;
mMainTex = GetTextureRef(spriteCollection, spriteID);
if (mMainTex == null)
{
//Debug.LogError("No sprite texture found at sprite '" + tk2dSpriteComponent.name + "' with spriteID " + spriteID + ".");
Debug.LogError("No sprite texture found at sprite with spriteID " + spriteID + ".");
return(false);
}
spriteCollectionDefinition = GetTK2DSpriteCollectionDefinition(spriteCollection, spriteID);
if (spriteCollectionDefinition == null)
{
// last error is already set in GetTK2DSpriteCollectionDefinition() above.
return(false);
}
if (mOutlineAlgorithm == null)
{
mOutlineAlgorithm = new PolygonOutlineFromImageFrontend();
}
int regionXOffset = 0;
int regionYOffset = 0;
int regionWidth = UsedTexture.width;
int regionHeight = UsedTexture.height;
bool isRegionUsed = false;
if (mRegionIndependentParameters.CustomTex == null)
{
isRegionUsed = ReadRegionParameters(out regionXOffset, out regionYOffset, out regionWidth, out regionHeight, spriteCollectionDefinition);
regionYOffset = mMainTex.height - regionYOffset - regionHeight;
}
mOutlineAlgorithm.BinaryAlphaThresholdImageFromTexture(ref mBinaryImage, out mBinaryImageWidth, out mBinaryImageHeight, UsedTexture, mRegionIndependentParameters.AlphaOpaqueThreshold,
isRegionUsed, regionXOffset, regionYOffset, regionWidth, regionHeight);
int imageSize = mBinaryImageWidth * mBinaryImageHeight;
if (mClassificationImage == null || mClassificationImage.Length < imageSize)
{
mClassificationImage = new int[imageSize];
}
bool anyIslandsFound = CalculateIslandStartingPoints(mBinaryImage, mBinaryImageWidth, mBinaryImageHeight, ref mClassificationImage, ref mIslands, ref mSeaRegions);
if (!anyIslandsFound)
{
return(false);
}
AlphaMeshCollider.SetupColliderRegions(out mColliderRegions, mIslands, mSeaRegions);
numColliderRegions = mColliderRegions.Length;
SetupColliderRegionParameters(ref mColliderRegionParameters, mRegionIndependentParameters.DefaultMaxPointCount, mIslands, mSeaRegions);
return(true);
}