From cb9c9d13a429e2f8f7b0c5feb858d08f39ea54f0 Mon Sep 17 00:00:00 2001
From: Bill Rossi <bassguitarbill@gmail.com>
Date: Sat, 8 Mar 2025 19:27:02 -0500
Subject: [PATCH] Only draw the tiles you need to

---
 level.c  | 11 +++++++----
 player.c |  1 +
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/level.c b/level.c
index 7b8410d..2311e17 100644
--- a/level.c
+++ b/level.c
@@ -36,17 +36,20 @@ void init_level(Game *g, Level *l, char *filepath) {
 }
 
 Color COLORS[4] = {BLACK, DARKGRAY, GRAY, LIGHTGRAY};
-void draw_tile(Level *l, int x, int y) {
-  size_t index = x + (y * l->width);
-  size_t data = l->data[index] & 3;
+void draw_tile(Level *l, float x, float y) {
+  size_t index = (size_t)(x + (y * l->width)) % l->data_size;
+  size_t data = l->data[index];
   Color c = COLORS[data];
   DrawRectangle(x * 32, y * 32, 32, 32, c);
 }
 
 void draw_level(Level *l) {
   Camera2D *camera = l->game->camera;
+  float y = l->game->player->position.y;
+  y /= 32;
+
   for (int i = 0; i < l->width; i++) {
-    for (int j = 0; j < l->length; j++) {
+    for (int j = y - 15; j < y + 15; j++) {
       draw_tile(l, i, j);
     }
   }
diff --git a/player.c b/player.c
index 0bfe5d2..98ee806 100644
--- a/player.c
+++ b/player.c
@@ -36,6 +36,7 @@ void handle_player_input(Player *p) {
 
 void draw_player(Player *p) {
   DrawTextureRec(p->spritesheet, (Rectangle) { 128, 128, 128, 128 }, (Vector2) { p->position.x - 64, p->position.y - 29 }, WHITE);
+  DrawRectangle(p->position.x, p->position.y, 5, 5, BLUE);
 }
 
 void move_player(Player *p) {