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package ru.olamedia.olacraft.render.jogl;
import javax.media.opengl.GL;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLContext;
import ru.olamedia.math.Box;
import ru.olamedia.math.Classifier;
import ru.olamedia.olacraft.game.Game;
import ru.olamedia.olacraft.world.chunk.BlockSlice;
import ru.olamedia.olacraft.world.chunk.Chunk;
import ru.olamedia.olacraft.world.chunk.ChunkMeshBulder;
import ru.olamedia.olacraft.world.chunk.ChunkSlice;
public class ChunkRenderer {
private BlockSlice slice;
public ChunkRenderer(BlockSlice slice) {
this.slice = slice;
}
public int visibleTop = 0;
public int visibleBottom = 0;
public int visibleLeft = 0;
public int visibleRight = 0;
public int visibleFront = 0;
public int visibleBack = 0;
public int frustumCulledChunks = 0;
public int frustumIntersectChunks = 0;
public boolean renderChunk(Chunk chunk, boolean skipnew) {
GL gl = GLContext.getCurrentGL();
if (!chunk.isAvailable()) {
// System.out.println("not available");
chunk.request();
return skipnew;
}
/*
* if (!chunk.isNeighborsAvailable()) {
* System.out.println("no neighbors");
* chunk.requestNeighbors();
* return;
* }
*/
// System.out.println("available");
Box box = new Box(chunk.getX(), chunk.getY(), chunk.getZ(), chunk.getX() + chunk.getWidth(), chunk.getY()
+ chunk.getHeight(), chunk.getZ() + chunk.getDepth());
if (Game.instance.camera.frustum.quickClassify(box) == Classifier.OUTSIDE) {
frustumCulledChunks++;
return skipnew;
}
// // boolean inside = true;
// if (Game.camera.frustum != null) {
// if (Game.camera.frustum.quickClassify(box) ==
// Classifier.Classification.OUTSIDE) {
// frustumCulledChunks++;
// return;
// }
// }
// } else if (Game.camera.frustum.test(box) == Classifier.INTERSECT) {
// inside = false;
// frustumIntersectChunks++;
// } else {
// frustumCulledChunks++;
// return;
// }
if (!chunk.isMeshCostructed) {
if (skipnew) {
return skipnew;
}
}
if (!chunk.isMeshCostructed) {
ChunkMeshBulder.instance.add(chunk);
if (ChunkMeshBulder.instance.isFull()) {
skipnew = true;
}
return skipnew;
}
if (null == chunk.getMesh()) {
} else {
chunk.getMesh().joglRender(gl);
}
return skipnew;
}
public void render(GLAutoDrawable drawable) {
if (!ChunkMeshBulder.instance.isAlive()) {
ChunkMeshBulder.instance.start();
}
visibleTop = 0;
visibleBottom = 0;
visibleLeft = 0;
visibleRight = 0;
visibleFront = 0;
visibleBack = 0;
frustumCulledChunks = 0;
boolean skipnew = false;
ChunkSlice cs = slice.getChunkSlice();
// rendering from center
int x, y, z;
int dw = cs.getWidth() / 2;
int dd = cs.getDepth() / 2;
int dh = cs.getHeight() / 2;
for (int dx = 0; dx < dw; dx++) {
x = cs.getX() + dw + dx;
for (int dz = 0; dz < dd; dz++) {
z = cs.getZ() + dd + dz;
for (int dy = 0; dy < dh; dy++) {
y = cs.getY() + dh + dy;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
y = cs.getY() + dh - dy - 1;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
}
z = cs.getZ() + dd - dz - 1;
for (int dy = 0; dy < dh; dy++) {
y = cs.getY() + dh + dy;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
y = cs.getY() + dh - dy - 1;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
}
}
x = cs.getX() + dw - dx - 1;
for (int dz = 0; dz < dd; dz++) {
z = cs.getZ() + dd + dz;
for (int dy = 0; dy < dh; dy++) {
y = cs.getY() + dh + dy;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
y = cs.getY() + dh - dy - 1;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
}
z = cs.getZ() + dd - dz - 1;
for (int dy = 0; dy < dh; dy++) {
y = cs.getY() + dh + dy;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
y = cs.getY() + dh - dy - 1;
skipnew = renderChunk(cs.getChunk(x, y, z), skipnew);
}
}
}
// System.out.println("visible top " + visibleTop);
}
}
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