/** Update sky and emitted light */
private final void updateLightLevel() {
/* Look up transparency for current block */
BlockTransparency bt = HDTextureMap.getTransparency(blocktypeid);
if (bt == BlockTransparency.TRANSPARENT) {
skylevel = mapiter.getBlockSkyLight();
emitlevel = mapiter.getBlockEmittedLight();
} else if (HDTextureMap.getTransparency(lastblocktypeid)
!= BlockTransparency.SEMITRANSPARENT) {
mapiter.unstepPosition(laststep); /* Back up to block we entered on */
if (mapiter.getY() < 128) {
emitlevel = mapiter.getBlockEmittedLight();
skylevel = mapiter.getBlockSkyLight();
} else {
emitlevel = 0;
skylevel = 15;
}
mapiter.stepPosition(laststep);
} else {
mapiter.unstepPosition(laststep); /* Back up to block we entered on */
if (mapiter.getY() < 128) {
mapiter.stepPosition(BlockStep.Y_PLUS); /* Look above */
emitlevel = mapiter.getBlockEmittedLight();
skylevel = mapiter.getBlockSkyLight();
mapiter.stepPosition(BlockStep.Y_MINUS);
} else {
emitlevel = 0;
skylevel = 15;
}
mapiter.stepPosition(laststep);
}
}
/**
* Generate chest block to drive model selection: 0 = single facing west 1 = single facing south
* 2 = single facing east 3 = single facing north 4 = left side facing west 5 = left side facing
* south 6 = left side facing east 7 = left side facing north 8 = right side facing west 9 =
* right side facing south 10 = right side facing east 11 = right side facing north
*
* @param mapiter
* @return
*/
private int generateChestBlockData(MapIterator mapiter) {
ChestData cd = ChestData.SINGLE_WEST; /* Default to single facing west */
/* Check adjacent block IDs */
int ids[] = {
mapiter.getBlockTypeIDAt(BlockStep.Z_PLUS), /* To west */
mapiter.getBlockTypeIDAt(BlockStep.X_PLUS), /* To south */
mapiter.getBlockTypeIDAt(BlockStep.Z_MINUS), /* To east */
mapiter.getBlockTypeIDAt(BlockStep.X_MINUS)
}; /* To north */
/* First, check if we're a double - see if any adjacent chests */
if (ids[0] == CHEST_BLKTYPEID) {
/* Another to west - assume we face south */
cd = ChestData.RIGHT_SOUTH; /* We're right side */
} else if (ids[1] == CHEST_BLKTYPEID) {
/* Another to south - assume west facing */
cd = ChestData.LEFT_WEST; /* We're left side */
} else if (ids[2] == CHEST_BLKTYPEID) {
/* Another to east - assume south facing */
cd = ChestData.LEFT_SOUTH; /* We're left side */
} else if (ids[3] == CHEST_BLKTYPEID) {
/* Another to north - assume west facing */
cd = ChestData.RIGHT_WEST; /* We're right side */
} else {
/* Else, single - build index into lookup table */
int idx = 0;
for (int i = 0; i < ids.length; i++) {
if ((ids[i] != 0)
&& (HDTextureMap.getTransparency(ids[i]) != BlockTransparency.TRANSPARENT)) {
idx |= (1 << i);
}
}
cd = SINGLE_LOOKUP[idx];
}
return cd.ordinal();
}
