extract render into its own procedure

main.odin

@@ -21,8 +21,8 @@ main :: proc() {
 	defer sdl3.DestroyWindow(window)
 
 	render := sdl3.CreateRenderer(window, "vulkan")
-	assert(render != nil)
 
+	assert(render != nil)
 	units := make([dynamic]Unit)
 	append(&units, Unit{faction = Faction.Player, position = Position{x = 500, y = 500}, hp = 100})
 	append(&units, Unit{faction = Faction.Enemy, position = Position{x = 700, y = 700}, hp = 100})
@@ -45,15 +45,18 @@ main :: proc() {
 			}
 		}
 
-		sdl3.SetRenderDrawColor(render, 0, 0, 0, 0)
-		sdl3.RenderClear(render)
+		RenderGame(game)
+	}
+}
 
-		for unit in game.units {
-			RenderUnit(unit, game)
-		}
-
-		sdl3.RenderPresent(render)
+RenderGame :: proc(game: Game) {
+	sdl3.SetRenderDrawColor(game.render, 0, 0, 0, 0)
+	sdl3.RenderClear(game.render)
 
+	for unit in game.units {
+		RenderUnit(unit, game)
 	}
 
+	sdl3.RenderPresent(game.render)
+
 }