@Override
public byte getLeafSidesInNetwork(NetworkNode networkNode) {
if (!hasLeafNode(networkNode))
throw new IllegalArgumentException("Cannot test nodes not in network");
if (networkingNodes.size() == 0) {
// Degenerated network
for (Side connectingOnSide : SideBitFlag.getSides(networkNode.connectionSides)) {
Vector3i possibleLocation = networkNode.location.toVector3i();
possibleLocation.add(connectingOnSide.getVector3i());
for (NetworkNode node : leafNodes.get(new ImmutableBlockLocation(possibleLocation))) {
if (SideBitFlag.hasSide(node.connectionSides, connectingOnSide.reverse())) {
return SideBitFlag.getSide(connectingOnSide);
}
}
}
return 0;
} else {
byte result = 0;
for (Side connectingOnSide : SideBitFlag.getSides(networkNode.connectionSides)) {
Vector3i possibleLocation = networkNode.location.toVector3i();
possibleLocation.add(connectingOnSide.getVector3i());
for (NetworkNode node : networkingNodes.get(new ImmutableBlockLocation(possibleLocation))) {
if (SideBitFlag.hasSide(node.connectionSides, connectingOnSide.reverse())) {
result += SideBitFlag.getSide(connectingOnSide);
}
}
}
return result;
}
}
public static boolean areNodesConnecting(NetworkNode node1, NetworkNode node2) {
for (Side side : SideBitFlag.getSides(node1.connectionSides)) {
final ImmutableBlockLocation possibleConnectedLocation = node1.location.move(side);
if (node2.location.equals(possibleConnectedLocation)
&& SideBitFlag.hasSide(node2.connectionSides, side.reverse())) return true;
}
return false;
}
/**
* Returns true if the side should be rendered adjacent to the second side provided.
*
* @param blockToCheck The block to check
* @param currentBlock The current block
* @return True if the side is visible for the given block types
*/
private boolean isSideVisibleForBlockTypes(Block blockToCheck, Block currentBlock, Side side) {
// Liquids can be transparent but there should be no visible adjacent faces
if (currentBlock.isLiquid() && blockToCheck.isLiquid()) {
return false;
}
return currentBlock.isWaving() != blockToCheck.isWaving()
|| blockToCheck.isInvisible()
|| !blockToCheck.isFullSide(side.reverse())
|| (!currentBlock.isTranslucent() && blockToCheck.isTranslucent());
}
private boolean canConnectToNetworkingNode(NetworkNode networkNode) {
for (Side connectingOnSide : SideBitFlag.getSides(networkNode.connectionSides)) {
final ImmutableBlockLocation possibleConnectionLocation =
networkNode.location.move(connectingOnSide);
for (NetworkNode possibleConnectedNode : networkingNodes.get(possibleConnectionLocation)) {
if (SideBitFlag.hasSide(possibleConnectedNode.connectionSides, connectingOnSide.reverse()))
return true;
}
}
return false;
}
private void listConnectedNotVisitedNetworkingNodes(
Set<NetworkNode> visitedNodes, NetworkNode location, Collection<NetworkNode> result) {
for (Side connectingOnSide : SideBitFlag.getSides(location.connectionSides)) {
final ImmutableBlockLocation possibleConnectionLocation =
location.location.move(connectingOnSide);
for (NetworkNode possibleConnection : networkingNodes.get(possibleConnectionLocation)) {
if (!visitedNodes.contains(possibleConnection)
&& SideBitFlag.hasSide(possibleConnection.connectionSides, connectingOnSide.reverse()))
result.add(possibleConnection);
}
}
}
@Override
public void generateChunkMesh(ChunkView view, ChunkMesh chunkMesh, int x, int y, int z) {
Biome selfBiome = view.getBiome(x, y, z);
Block selfBlock = view.getBlock(x, y, z);
// TODO: Needs review - too much hardcoded special cases and corner cases resulting from this.
ChunkVertexFlag vertexFlag = ChunkVertexFlag.NORMAL;
if (selfBlock.isWater()) {
if (view.getBlock(x, y + 1, z).isWater()) {
vertexFlag = ChunkVertexFlag.WATER;
} else {
vertexFlag = ChunkVertexFlag.WATER_SURFACE;
}
} else if (selfBlock.isLava()) {
vertexFlag = ChunkVertexFlag.LAVA;
} else if (selfBlock.isWaving() && selfBlock.isDoubleSided()) {
vertexFlag = ChunkVertexFlag.WAVING;
} else if (selfBlock.isWaving()) {
vertexFlag = ChunkVertexFlag.WAVING_BLOCK;
}
// Gather adjacent blocks
Map<Side, Block> adjacentBlocks = Maps.newEnumMap(Side.class);
for (Side side : Side.values()) {
Vector3i offset = side.getVector3i();
Block blockToCheck = view.getBlock(x + offset.x, y + offset.y, z + offset.z);
adjacentBlocks.put(side, blockToCheck);
}
BlockAppearance blockAppearance = selfBlock.getAppearance(adjacentBlocks);
/*
* Determine the render process.
*/
ChunkMesh.RenderType renderType = ChunkMesh.RenderType.TRANSLUCENT;
if (!selfBlock.isTranslucent()) {
renderType = ChunkMesh.RenderType.OPAQUE;
}
// TODO: Review special case, or alternatively compare uris.
if (selfBlock.isWater() || selfBlock.isIce()) {
renderType = ChunkMesh.RenderType.WATER_AND_ICE;
}
if (selfBlock.isDoubleSided()) {
renderType = ChunkMesh.RenderType.BILLBOARD;
}
if (blockAppearance.getPart(BlockPart.CENTER) != null) {
Vector4f colorOffset = selfBlock.calcColorOffsetFor(BlockPart.CENTER, selfBiome);
blockAppearance
.getPart(BlockPart.CENTER)
.appendTo(chunkMesh, x, y, z, colorOffset, renderType, vertexFlag);
}
boolean[] drawDir = new boolean[6];
for (Side side : Side.values()) {
drawDir[side.ordinal()] =
blockAppearance.getPart(BlockPart.fromSide(side)) != null
&& isSideVisibleForBlockTypes(adjacentBlocks.get(side), selfBlock, side);
}
// If the selfBlock is lowered, some more faces may have to be drawn
if (selfBlock.isLiquid()) {
Block bottomBlock = adjacentBlocks.get(Side.BOTTOM);
// Draw horizontal sides if visible from below
for (Side side : Side.horizontalSides()) {
Vector3i offset = side.getVector3i();
Block adjacentBelow = view.getBlock(x + offset.x, y - 1, z + offset.z);
Block adjacent = adjacentBlocks.get(side);
boolean visible =
(blockAppearance.getPart(BlockPart.fromSide(side)) != null
&& isSideVisibleForBlockTypes(adjacentBelow, selfBlock, side)
&& !isSideVisibleForBlockTypes(bottomBlock, adjacent, side.reverse()));
drawDir[side.ordinal()] |= visible;
}
// Draw the top if below a non-lowered selfBlock
// TODO: Don't need to render the top if each side and the selfBlock above each side are
// either liquid or opaque solids.
Block blockToCheck = adjacentBlocks.get(Side.TOP);
drawDir[Side.TOP.ordinal()] |= !blockToCheck.isLiquid();
if (bottomBlock.isLiquid() || bottomBlock.isInvisible()) {
for (Side dir : Side.values()) {
if (drawDir[dir.ordinal()]) {
Vector4f colorOffset = selfBlock.calcColorOffsetFor(BlockPart.fromSide(dir), selfBiome);
selfBlock
.getLoweredLiquidMesh(dir)
.appendTo(chunkMesh, x, y, z, colorOffset, renderType, vertexFlag);
}
}
return;
}
}
for (Side dir : Side.values()) {
if (drawDir[dir.ordinal()]) {
Vector4f colorOffset = selfBlock.calcColorOffsetFor(BlockPart.fromSide(dir), selfBiome);
// TODO: Needs review since the new per-vertex flags introduce a lot of special scenarios -
// probably a per-side setting?
if (selfBlock.isGrass() && dir != Side.TOP && dir != Side.BOTTOM) {
blockAppearance
.getPart(BlockPart.fromSide(dir))
.appendTo(chunkMesh, x, y, z, colorOffset, renderType, ChunkVertexFlag.COLOR_MASK);
} else {
// if(dir == Side.TOP) logger.info("Generating: " + (new Vector3i(x, y, z)).toString() + "
// " + view.getChunkRegion().toString() + " " + dir.toString());
blockAppearance
.getPart(BlockPart.fromSide(dir))
.appendTo(chunkMesh, x, y, z, colorOffset, renderType, vertexFlag);
}
}
}
}