From 7c41e69dda3234f66a137c303fecd7bfe114ff69 Mon Sep 17 00:00:00 2001
From: Jason Hilder <jhilder95@gmail.com>
Date: Fri, 31 Jul 2026 07:12:59 +0200
Subject: [PATCH] New helper function converting grid space to flat index.

---
 src/map.odin | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/map.odin b/src/map.odin
index fdffe17..94a865b 100644
--- a/src/map.odin
+++ b/src/map.odin
@@ -122,12 +122,16 @@ world_to_grid :: proc(world_pos: rl.Vector2) -> Grid_Pos {
 }
 
 // returns world-space position grid pos top-left corner opposite of world_to_grid.
-grid_to_world :: proc(col: int, row: int) -> rl.Vector2 {
+grid_to_world :: proc(col, row: int) -> rl.Vector2 {
 	world_x := f32(col * TILE_SIZE)
 	world_y := f32(row * TILE_SIZE)
 	return rl.Vector2{world_x, world_y}
 }
 
+grid_to_index :: proc(col, row, width: int) -> int {
+	return (row * width) + col
+}
+
 // requires world x/y and then gives the rectangle in pixels that matches that
 get_world_tile_rect :: proc(gx, gy, offset_x, offset_y, w, h: f32) -> rl.Rectangle {
 	return rl.Rectangle {