Rework chunk rendering to get a 100x performance boost!

- Switching to semi-chunk mesh rendering just 100x the framerate, it was
  running at around 100fps for 3 CHUNK_DISTANCE, and pushing it above
  would make it drop to 30. Now it runs at 9000 frames per second with
  CHUNK_DISTANCE of 8, probably can push it even more

- What is bizarre is this is just from the reduction in draw calls,
  I still need to implement face culling for invisible blocks (simple)
  and frustrum culling (using AABB) or maybe octrees

- Block is way way more simplifed, it's just metadata about a coordinate
  in the chunk block array

- All rendering and mesh generation code is handled by chunks. There is
  a VAO, single VBO and EBO for each chunk. The data buffer is loaded
  into the GPU with a chunk_load, and it stays like that until it is
  loaded again. chunk_load is called if we move chunks, in
  engine_update. Here we unload existing chunks, then load the new ones

1 files changed, 2 insertions, 2 deletions

diff --git a/src/world.h b/src/world.h
index ec0328b..a447d8e 100644
--- a/src/world.h
+++ b/src/world.h
@@ -1,8 +1,8 @@
 #pragma once
 #include "chunk.h"
 #include <stdint.h>
-#define WORLD_LENGTH 6
-#define WORLD_WIDTH 6
+#define WORLD_LENGTH 32
+#define WORLD_WIDTH 32
 
 struct world {
     struct chunk* chunks[WORLD_WIDTH][WORLD_LENGTH];