Update chunk rendering, improve chunk loading

- On world_init, LOAD_CHUNK amount of chunks are preloaded
- Chunks are loaded around the player's current chunk, in a square
  shape. The size of the shape is controlled by CHUNK_DISTANCE
- Allow chunks struct to be independent of a position. We load a chunk
  TO a position in the world chunk grid (x, y). This allows us to "wrap"
  chunks, so we have an endless world, but we are really just wrapping
  around

1 files changed, 9 insertions, 0 deletions

diff --git a/src/block.h b/src/block.h
index 1da88ac..b19265d 100644
--- a/src/block.h
+++ b/src/block.h
@@ -12,6 +12,15 @@ struct block {
     mat4 model;
     float angle;
 };
+/**
+ * Create a "block" object, which is the building blocks of this world.
+ * Blocks belong in chunks, and chunks belong in worlds. vec3 pos here is the coordinates of the block in WORLD space.
+ * However, a common method to render these blocks will be that the chunk will set the coordinates in "chunk space", and
+ * on a chunk_load, we will translate the blocks to wherever the chunk is loaded
+ *
+ *
+ */
 int block_init(vec3 pos, struct block* blk);
 int block_draw(struct block* blk, struct shader* shader);
 void block_debug(struct block* blk);
+void block_update(struct block* blk);