public void updateChunk(RegionManager regionManager, MwChunk chunk) {
for (int i = 0; i < this.regionArray.length; i++) {
Region region = this.regionArray[i];
if ((region != null) && (region.isChunkWithin(chunk))) {
this.updateTextureFromRegion(
region, chunk.x << 4, chunk.z << 4, MwChunk.SIZE, MwChunk.SIZE);
this.setRegionModified(i);
}
}
}
public void updateTextureFromRegion(Region region, int x, int z, int w, int h) {
int tx = (x >> region.zoomLevel) & (this.w - 1);
int ty = (z >> region.zoomLevel) & (this.h - 1);
int tw = (w >> region.zoomLevel);
int th = (h >> region.zoomLevel);
// make sure we don't write outside texture
tw = Math.min(tw, this.w - tx);
th = Math.min(th, this.h - th);
// MwUtil.log("updateTextureFromRegion: region %s, %d %d %d %d -> %d %d %d %d", region, x, z, w,
// h, tx, ty, tw, th);
int[] pixels = region.getPixels();
if (pixels != null) {
this.setRGBOpaque(tx, ty, tw, th, pixels, region.getPixelOffset(x, z), Region.SIZE);
} else {
this.fillRect(tx, ty, tw, th, 0xff000000);
}
}
public boolean loadRegion(
RegionManager regionManager, int x, int z, int zoomLevel, int dimension) {
// MwUtil.log("mapTexture.loadRegion %d %d %d %d", x, z, zoomLevel, dimension);
boolean alreadyLoaded = true;
int index = this.getRegionIndex(x, z, zoomLevel);
Region currentRegion = this.regionArray[index];
if ((currentRegion == null) || (!currentRegion.equals(x, z, zoomLevel, dimension))) {
if (currentRegion != null) {
currentRegion.refCount--;
}
Region newRegion = regionManager.getRegion(x, z, zoomLevel, dimension);
this.regionArray[index] = newRegion;
newRegion.refCount++;
this.updateTextureFromRegion(
newRegion, newRegion.x, newRegion.z, newRegion.size, newRegion.size);
// oops! this needs to be after updateTextureFromRegion otherwise the GL texture will be
// updated
// and the regionModified flag cleared before the region is actually loaded.
this.setRegionModified(index);
// MwUtil.log("regionArray[%d] = %s", newRegion.index, newRegion);
alreadyLoaded = false;
}
return alreadyLoaded;
}