toggle drawing of minimap by keyboard press.

main.go

@@ -17,6 +17,7 @@ var (
 	player       Player
 	level        *world.Level
 	startOfFrame time.Time
+	drawMinimap  bool
 )
 
 func loadLevel(newLevel *world.Level) {
@@ -39,6 +40,8 @@ func update() bool {
 		case *sdl.KeyboardEvent:
 			if ev.Type == sdl.KEYDOWN {
 				switch ev.Keysym.Sym {
+				case sdl.K_m:
+					drawMinimap = !drawMinimap
 				case sdl.K_ESCAPE:
 					return true
 				}
@@ -86,7 +89,9 @@ func main() {
 		}
 
 		render.DrawScene(gfxContext, player.Transform, level)
-		render.DrawMiniMap(gfxContext, player.Transform, level)
+		if drawMinimap {
+			render.DrawMiniMap(gfxContext, player.Transform, level)
+		}
 		gfxContext.Sync()
 
 		elapsed := time.Since(startOfFrame)