HTML5 Game Development with GameMaker

Adding finishing details to the game

The game is now functionally complete, but there are a few elements left to polish up. To start, the player takes damage but never dies, nor is there a heads-up display (HUD) to show this. Let's create a quick Overlord.

1. Create a new Object, obj_Overlord, with no sprite applied and persistence is checked.
2. Add a Draw GUI event and a new Script for it, scr_Overlord_DrawGUI, with the following code:

   draw_healthbar(0, 0, 200, 16, health, c_black, c_red, c_green, 0, true, true);
   
   if (health <= 0)
   {
       with (obj_Player) { instance_destroy(); }
       room_goto(TitleScreen);
       instance_destroy();
   }

   First, we use the function draw_healthbar which you can see has a lot of parameters. The first four are the size and placement of a rectangular ...