move examples from public to their own examples folder

pyscriptjs/examples/mario/js/bcoin.js

@@ -0,0 +1,45 @@
+(function() {
+  if (typeof Mario === 'undefined')
+  window.Mario = {};
+
+  var Bcoin = Mario.Bcoin = function(pos) {
+    Mario.Entity.call(this, {
+      pos: pos,
+      sprite: level.bcoinSprite(),
+      hitbox: [0,0,16,16]
+    });
+  }
+
+  Mario.Util.inherits(Bcoin, Mario.Entity);
+
+  //I'm not sure whether it makes sense to use an array for vel and acc here
+  //in order to keep with convention, or to just use a single value, since
+  //it's literally impossible for these to move left or right.
+  Bcoin.prototype.spawn = function() {
+    sounds.coin.currentTime = 0.05;
+    sounds.coin.play();
+    this.idx = level.items.length;
+    level.items.push(this);
+    this.active = true;
+    this.vel = -12;
+    this.targetpos = this.pos[1] - 32;
+  }
+
+  Bcoin.prototype.update = function(dt) {
+    if (!this.active) return;
+
+    if (this.vel > 0 && this.pos[1] >= this.targetpos) {
+      player.coins += 1;
+      //spawn a score thingy.
+      delete level.items[this.idx];
+    }
+
+    this.acc = 0.75;
+    this.vel += this.acc;
+    this.pos[1] += this.vel;
+    this.sprite.update(dt);
+  }
+
+  Bcoin.prototype.checkCollisions = function() {;}
+
+})();