little bit of code reorganizing
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57b028426a
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2cc12276f0
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@ -58,90 +58,10 @@ public class ChunkVertexGenerator {
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else
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tmpColor.set(mesh.color);
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if (mesh instanceof CubeTileMesh) {
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CubeTileMesh cubeMesh = (CubeTileMesh)mesh;
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// determine what's next to each cube face
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Tile left = chunk.getWithinSelfOrNeighbourSafe(x - 1, y, z);
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Tile right = chunk.getWithinSelfOrNeighbourSafe(x + 1, y, z);
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Tile forward = chunk.getWithinSelfOrNeighbourSafe(x, y, z - 1);
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Tile backward = chunk.getWithinSelfOrNeighbourSafe(x, y, z + 1);
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Tile down = chunk.getWithinSelfOrNeighbourSafe(x, y - 1, z);
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Tile up = chunk.getWithinSelfOrNeighbourSafe(x, y + 1, z);
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// evaluate each face's visibility and add it's vertices if needed one at a time
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if ((left == null || left.tile == Tile.NO_TILE || !tileMap.tileMeshes.get(left).isOpaque(TileMesh.SIDE_RIGHT)) && cubeMesh.hasFace(TileMesh.SIDE_LEFT)) {
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// left face is visible
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if (cubeMesh.alpha)
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addMesh(alphaBuilder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.leftFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.leftFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((right == null || right.tile == Tile.NO_TILE || !tileMap.tileMeshes.get(right).isOpaque(TileMesh.SIDE_LEFT)) && cubeMesh.hasFace(TileMesh.SIDE_RIGHT)) {
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// right face is visible
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if (cubeMesh.alpha)
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addMesh(alphaBuilder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.rightFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.rightFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((forward == null || forward.tile == Tile.NO_TILE || !tileMap.tileMeshes.get(forward).isOpaque(TileMesh.SIDE_BACK)) && cubeMesh.hasFace(TileMesh.SIDE_FRONT)) {
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// front face is visible
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if (cubeMesh.alpha)
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addMesh(alphaBuilder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.frontFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.frontFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((backward == null || backward.tile == Tile.NO_TILE || !tileMap.tileMeshes.get(backward).isOpaque(TileMesh.SIDE_FRONT)) && cubeMesh.hasFace(TileMesh.SIDE_BACK)) {
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// back face is visible
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if (cubeMesh.alpha)
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addMesh(alphaBuilder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.backFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.backFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((down == null || down.tile == Tile.NO_TILE || !tileMap.tileMeshes.get(down).isOpaque(TileMesh.SIDE_TOP)) && cubeMesh.hasFace(TileMesh.SIDE_BOTTOM)) {
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// bottom face is visible
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if (cubeMesh.alpha)
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addMesh(alphaBuilder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.bottomFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.bottomFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((up == null || up.tile == Tile.NO_TILE || !tileMap.tileMeshes.get(up).isOpaque(TileMesh.SIDE_BOTTOM)) && cubeMesh.hasFace(TileMesh.SIDE_TOP)) {
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// top face is visible
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if (cubeMesh.alpha)
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addMesh(alphaBuilder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.topFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, cubeMesh, chunk, tmpPosition, transform, tmpColor, cubeMesh.topFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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} else {
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boolean visible = false;
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// visibility determination. we check for at least one
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// adjacent empty space / non-opaque tile
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Tile left = chunk.getWithinSelfOrNeighbourSafe(x - 1, y, z);
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Tile right = chunk.getWithinSelfOrNeighbourSafe(x + 1, y, z);
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Tile forward = chunk.getWithinSelfOrNeighbourSafe(x, y, z - 1);
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Tile backward = chunk.getWithinSelfOrNeighbourSafe(x, y, z + 1);
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Tile down = chunk.getWithinSelfOrNeighbourSafe(x, y - 1, z);
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Tile up = chunk.getWithinSelfOrNeighbourSafe(x, y + 1, z);
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// null == empty space (off the edge of the entire map)
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if (
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(left == null || left.isEmptySpace() || !tileMap.tileMeshes.get(left).isOpaque(TileMesh.SIDE_RIGHT)) ||
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(right == null || right.isEmptySpace() || !tileMap.tileMeshes.get(right).isOpaque(TileMesh.SIDE_LEFT)) ||
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(forward == null || forward.isEmptySpace() || !tileMap.tileMeshes.get(forward).isOpaque(TileMesh.SIDE_BACK)) ||
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(backward == null || backward.isEmptySpace() || !tileMap.tileMeshes.get(backward).isOpaque(TileMesh.SIDE_FRONT)) ||
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(up == null || up.isEmptySpace() || !tileMap.tileMeshes.get(up).isOpaque(TileMesh.SIDE_BOTTOM)) ||
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(down == null || down.isEmptySpace() || !tileMap.tileMeshes.get(down).isOpaque(TileMesh.SIDE_TOP))
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)
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visible = true;
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if (visible) {
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tmpPosition, transform, tmpColor, 0, mesh.getVertices().count());
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else
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addMesh(builder, tile, mesh, chunk, tmpPosition, transform, tmpColor, 0, mesh.getVertices().count());
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}
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}
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if (mesh instanceof CubeTileMesh)
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handleCubeMesh(x, y, z, tile, chunk, (CubeTileMesh)mesh, tmpPosition, transform, tmpColor);
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else
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handleGenericMesh(x, y, z, tile, chunk, mesh, tmpPosition, transform, tmpColor);
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}
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}
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}
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@ -150,6 +70,91 @@ public class ChunkVertexGenerator {
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chunk.alphaMesh.setMesh(alphaBuilder.end());
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}
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private void handleCubeMesh(int x, int y, int z, Tile tile, TileChunk chunk, CubeTileMesh mesh, TileCoord tileMapPosition, Matrix4 transform, Color color) {
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// determine what's next to each cube face
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Tile left = chunk.getWithinSelfOrNeighbourSafe(x - 1, y, z);
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Tile right = chunk.getWithinSelfOrNeighbourSafe(x + 1, y, z);
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Tile forward = chunk.getWithinSelfOrNeighbourSafe(x, y, z - 1);
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Tile backward = chunk.getWithinSelfOrNeighbourSafe(x, y, z + 1);
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Tile down = chunk.getWithinSelfOrNeighbourSafe(x, y - 1, z);
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Tile up = chunk.getWithinSelfOrNeighbourSafe(x, y + 1, z);
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// evaluate each face's visibility and add it's vertices if needed one at a time
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if ((left == null || left.tile == Tile.NO_TILE || !chunk.tileMap.tileMeshes.get(left).isOpaque(TileMesh.SIDE_RIGHT)) && mesh.hasFace(TileMesh.SIDE_LEFT)) {
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// left face is visible
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.leftFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.leftFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((right == null || right.tile == Tile.NO_TILE || !chunk.tileMap.tileMeshes.get(right).isOpaque(TileMesh.SIDE_LEFT)) && mesh.hasFace(TileMesh.SIDE_RIGHT)) {
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// right face is visible
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.rightFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.rightFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((forward == null || forward.tile == Tile.NO_TILE || !chunk.tileMap.tileMeshes.get(forward).isOpaque(TileMesh.SIDE_BACK)) && mesh.hasFace(TileMesh.SIDE_FRONT)) {
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// front face is visible
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.frontFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.frontFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((backward == null || backward.tile == Tile.NO_TILE || !chunk.tileMap.tileMeshes.get(backward).isOpaque(TileMesh.SIDE_FRONT)) && mesh.hasFace(TileMesh.SIDE_BACK)) {
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// back face is visible
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.backFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.backFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((down == null || down.tile == Tile.NO_TILE || !chunk.tileMap.tileMeshes.get(down).isOpaque(TileMesh.SIDE_TOP)) && mesh.hasFace(TileMesh.SIDE_BOTTOM)) {
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// bottom face is visible
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.bottomFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.bottomFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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if ((up == null || up.tile == Tile.NO_TILE || !chunk.tileMap.tileMeshes.get(up).isOpaque(TileMesh.SIDE_BOTTOM)) && mesh.hasFace(TileMesh.SIDE_TOP)) {
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// top face is visible
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.topFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, mesh.topFaceVertexOffset, TileMesh.CUBE_VERTICES_PER_FACE);
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}
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}
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private void handleGenericMesh(int x, int y, int z, Tile tile, TileChunk chunk, TileMesh mesh, TileCoord tileMapPosition, Matrix4 transform, Color color) {
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boolean visible = false;
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// visibility determination. we check for at least one
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// adjacent empty space / non-opaque tile
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Tile left = chunk.getWithinSelfOrNeighbourSafe(x - 1, y, z);
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Tile right = chunk.getWithinSelfOrNeighbourSafe(x + 1, y, z);
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Tile forward = chunk.getWithinSelfOrNeighbourSafe(x, y, z - 1);
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Tile backward = chunk.getWithinSelfOrNeighbourSafe(x, y, z + 1);
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Tile down = chunk.getWithinSelfOrNeighbourSafe(x, y - 1, z);
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Tile up = chunk.getWithinSelfOrNeighbourSafe(x, y + 1, z);
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// null == empty space (off the edge of the entire map)
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if (
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(left == null || left.isEmptySpace() || !chunk.tileMap.tileMeshes.get(left).isOpaque(TileMesh.SIDE_RIGHT)) ||
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(right == null || right.isEmptySpace() || !chunk.tileMap.tileMeshes.get(right).isOpaque(TileMesh.SIDE_LEFT)) ||
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(forward == null || forward.isEmptySpace() || !chunk.tileMap.tileMeshes.get(forward).isOpaque(TileMesh.SIDE_BACK)) ||
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(backward == null || backward.isEmptySpace() || !chunk.tileMap.tileMeshes.get(backward).isOpaque(TileMesh.SIDE_FRONT)) ||
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(up == null || up.isEmptySpace() || !chunk.tileMap.tileMeshes.get(up).isOpaque(TileMesh.SIDE_BOTTOM)) ||
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(down == null || down.isEmptySpace() || !chunk.tileMap.tileMeshes.get(down).isOpaque(TileMesh.SIDE_TOP))
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)
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visible = true;
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if (visible) {
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if (mesh.alpha)
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addMesh(alphaBuilder, tile, mesh, chunk, tileMapPosition, transform, color, 0, mesh.getVertices().count());
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else
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addMesh(builder, tile, mesh, chunk, tileMapPosition, transform, color, 0, mesh.getVertices().count());
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}
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}
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protected void addMesh(MeshBuilder builder, Tile tile, TileMesh sourceMesh, TileChunk chunk, TileCoord position, Matrix4 transform, Color color, int firstVertex, int numVertices) {
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// adjust position by the tilemesh offset. TileMesh's are modeled using the
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// origin (0,0,0) as the center and are 1 unit wide/deep/tall. So, their
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