1 files changed, 146 insertions, 0 deletions
diff --git a/src/ru/olamedia/olacraft/render/jogl/ChunkRenderer.java b/src/ru/olamedia/olacraft/render/jogl/ChunkRenderer.java
new file mode 100644
index 0000000..e24e8e9
--- /dev/null
+++ b/src/ru/olamedia/olacraft/render/jogl/ChunkRenderer.java
@@ -0,0 +1,146 @@
+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);
+	}
+}