add (currently useless) goal entity.

js/goal.mjs

@@ -0,0 +1,32 @@
+import { assert } from "./test.mjs";
+
+import * as Entity from "./entity.mjs";
+import { register_tick } from "./tick.mjs";
+
+import * as Event from "./event.mjs";
+import { underride } from "./underride.mjs";
+
+
+
+const goal = Entity.create(0, 0, 40, 40);
+
+export function get_goal () {
+	return goal;
+}
+
+Event.listen("level/unload", _ => {
+	Entity.set_visible(goal, false);
+});
+
+Event.listen("level/load/goal", (data = {}) => {
+	data = underride(data, {
+		pos: {
+			x: 0,
+			y: 0,
+		},
+	});
+
+	Entity.set_pos(goal, data.pos.x, data.pos.y);
+
+	Entity.set_visible(goal, true);
+});

js/graphics.mjs

@@ -1,6 +1,7 @@
 import { assert } from "./test.mjs";
 
 import { get_player } from "./player.mjs";
+import { get_goal } from "./goal.mjs";
 import * as enemy from "./enemy.mjs";
 
 import { get_pos, get_size, is_visible } from "./entity.mjs";
@@ -31,8 +32,9 @@ function draw_entity (entity, color) {
 }
 
 export function render () {
-	clear();
+	clear("#111");
 
+	draw_entity(get_goal(), "#880");
 	draw_entity(get_player(), "#0f0");
 
 	for (const e of enemy.get_all()) {

js/level.mjs

@@ -15,6 +15,7 @@ export function load (name) {
 	const level = Levels.get_level(name);
 
 	Event.trigger("level/load/player", level.player);
+	Event.trigger("level/load/goal", level.goal);
 	Event.trigger("level/load/enemy", level.enemies);
 }
 

js/levels/1.mjs

@@ -1,4 +1,16 @@
 export default {
+	player: {
+		pos: {
+			x: 300,
+			y: 50,
+		},
+	},
+	goal: {
+		pos: {
+			x: 300,
+			y: 500,
+		},
+	},
 	enemies: [
 		{
 			pos: [300, 100],