void TerrainImpl::getHeights(int x, int z, Brush& brush) const
{
// positions given are supposed to be the mid of the brush
// so adjust accordingly
x -= (int)brush.getWidth()/2;
z -= (int)brush.getHeight()/2;
// iterate over all fields of the brush array and fill them
// if they lie within
for (size_t i = 0; i < brush.getWidth(); ++i)
{
int posX = x + (int)i;
for (size_t j = 0; j < brush.getHeight(); ++j)
{
int posZ = z + (int)j;
if (posX < 0 || posX >= (int)mInfo->getWidth() || posZ < 0 || posZ >= (int)mInfo->getHeight())
{
brush.at(i, j) = -1;
continue;
}
brush.at(i, j) = mInfo->at(size_t(posX), size_t(posZ));
}
}
}
void SplattingManager::paint(uint textureNum, int x, int y, const Brush& brush, float intensity)
{
// positions given are supposed to be the mid of the brush
// so adjust accordingly
x -= (int)brush.getWidth()/2;
y -= (int)brush.getHeight()/2;
// iterate over all fields of the brush array and apply them to the map textures
// if they lie within the bounds
for (size_t i = 0; i < brush.getWidth(); ++i)
{
int posX = x + (int)i;
if (posX < 0 || posX >= (int)mImpl->width)
continue;
for (size_t j = 0; j < brush.getHeight(); ++j)
{
int posY = y + (int)j;
if (posY < 0 || posY >= (int)mImpl->height)
continue;
mImpl->paint(textureNum, (uint)posX, (uint)posY, brush.at(i, j) * intensity);
}
}
// finally, update the textures
mImpl->updateTextures();
}
void TerrainImpl::setHeights(int x, int z, const Brush& brush)
{
// positions given are supposed to be the mid of the brush
// so adjust accordingly
x -= (int)brush.getWidth()/2;
z -= (int)brush.getHeight()/2;
// iterate over all fields of the brush array and apply them to
// the heightmap data if they lie within
for (size_t i = 0; i < brush.getWidth(); ++i)
{
int posX = x + (int)i;
if (posX < 0 || posX >= (int)mInfo->getWidth())
continue;
for (size_t j = 0; j < brush.getHeight(); ++j)
{
int posZ = z + (int)j;
if (posZ < 0 || posZ >= (int)mInfo->getHeight())
continue;
float& height = mInfo->at(size_t(posX), size_t(posZ));
height = brush.at(i, j);
if (height > 1)
height = 1;
if (height < 0)
height = 0;
}
}
updateTiles(x, z, x+(int)brush.getWidth(), z+(int)brush.getHeight());
}
void saveBrushToImage(const Brush& brush, Image& image)
{
// save brush as a 16bit grayscale image
ushort* data = new ushort[brush.getWidth()*brush.getHeight()];
for (size_t x = 0; x < brush.getWidth(); ++x)
for (size_t y = 0; y < brush.getHeight(); ++y)
data[y*brush.getWidth() + x] = ushort(brush.at(x, y) * 0xffff);
// pass the data to the image, image takes over ownership
image.loadDynamicImage((uchar*)data, brush.getWidth(), brush.getHeight(), 1, PF_L16, true);
}
void saveBrushToImage(const Brush& brush, Image& image)
{
// save brush as a 16bit grayscale image
#if OGRE_VERSION_MINOR > 4
ushort* data = (ushort*)OGRE_ALLOC_T(uchar, brush.getWidth()*brush.getHeight()*sizeof(ushort), MEMCATEGORY_GENERAL);
#else
ushort* data = (ushort*)new uchar[brush.getWidth()*brush.getHeight()*sizeof(ushort)];
#endif
for (size_t x = 0; x < brush.getWidth(); ++x)
for (size_t y = 0; y < brush.getHeight(); ++y)
data[y*brush.getWidth() + x] = ushort(brush.at(x, y) * 0xffff);
// pass the data to the image, image takes over ownership
image.loadDynamicImage((uchar*)data, brush.getWidth(), brush.getHeight(), 1, PF_L16, true);
}