static public void scaleSelection(float amt, bool addOrPercent)
{
int totalNumVerts = TerrainGlobals.getTerrain().getNumXVerts();
float fact = 0;
for (int x = 0; x < totalNumVerts; x++)
{
for (int z = 0; z < totalNumVerts; z++)
{
if (Masking.isPointSelected(x, z, ref fact))
{
if (addOrPercent)
{
fact = BMathLib.Clamp(fact + amt, 0, 1);
}
else
{
fact = BMathLib.Clamp(fact * amt, 0, 1);
}
Masking.addSelectedVert(x, z, fact);
}
}
}
rebuildVisualsAfterSelection();
}
//----------------------------------------------
unsafe static public bool setMaskAlphaToTextureBlending(BTerrainQuadNode node, uint dstImgWidth, uint dstImgHeight,
UInt32 *mskImg, uint mskImgWidth, uint mskImgHeight, float intensity,
int xpos, int ypos, bool alternate)
{
BTerrainQuadNodeDesc desc = node.getDesc();
bool changed = false;
//create our position in the dst img, adjust for boundries
int mskMaxX = (int)mskImgWidth;
if (mskImgWidth + xpos >= dstImgWidth)
{
mskMaxX -= ((int)mskImgWidth) + xpos - ((int)dstImgWidth);
}
int mskMaxY = (int)mskImgHeight;
if (mskImgHeight + ypos >= dstImgHeight)
{
mskMaxY -= ((int)mskImgHeight) + ypos - ((int)dstImgHeight);
}
int mskMinX = 0;
int mskMinY = 0;
if (xpos < 0)
{
mskMinX = -xpos;
}
if (ypos < 0)
{
mskMinY = -ypos;
}
//validate extents...
if (mskMinX > mskImgWidth || mskMinY > mskImgHeight)
{
return(false);
}
int minX = (int)(desc.m_min.X / TerrainGlobals.getTerrain().getTileScale());
int maxX = (int)(desc.m_max.X / TerrainGlobals.getTerrain().getTileScale());
int minZ = (int)(desc.m_min.Z / TerrainGlobals.getTerrain().getTileScale());
int maxZ = (int)(desc.m_max.Z / TerrainGlobals.getTerrain().getTileScale());
for (int x = minX; x <= maxX; x++)
{
for (int z = minZ; z <= maxZ; z++)
{
int maskX = x - minX + mskMinX;
int maskY = z - minZ + mskMinY;
int mIP = maskX * ((int)mskImgWidth) + maskY;
char alpha = (char)(((mskImg[mIP] & 0xFF000000) >> 24));
float factor = alpha / 255.0f * intensity;;
int vertIndex = (int)(x * TerrainGlobals.getTerrain().getNumZVerts() + z);
float curWeight = Masking.getCurrSelectionMaskWeights().GetMaskWeight(vertIndex);
float newWeight;
if (!alternate)
{
newWeight = (curWeight > factor) ? curWeight : factor;
}
else//CLM Changes to erasing..
{
newWeight = BMathLib.Clamp(curWeight - factor, 0, 1);
}
Masking.addSelectedVert(x, z, newWeight);
changed = true;
}
}
return(changed);
}