Implement monster API

[jonoxia]

Imagining my ideal API for defining a new monster behavior, it might look something like this:

DefineMonster( { name: "Spider", // to display in the monster selector interface in the level designer sprites: "http://some/sitespider.png",

speed: 5, jump: 0, health: 1, // size = 1 block by 1 block unless overridden // initial x, y = defined by level editor

onContactPlayer: function(monster, player, contactDirection) { // player object has full API for doing crazy stuff

if (contactDirection == "top") { // player landed on top of me
  monster.damage(1);
  player.bounce();
} else {
  player.damage(2);
  player.knockBack(10);
}

},

onMove: function(monster, world, tick) { if ( tick % 20 == 0) { // every 20 ticks launch a web monster.launchProjectile({sprite: "web.png", gravity: true, onContactPlayer: function(projectile, player) { player.applyCondition("speed", -2, 10); // speed -2 for 10 secs }, onContactMonster: function(projectile, monster) { // don't do anything }, onContactWall: function(projectile, world) { projectile.stop(); }} monster.facingDirection * 40, -20); // initial vx, vy } if (world.ledgeUnderneath(monster)) { monster.reverseFacing(); } else if (world.wallInFrontOf(monster)) { monster.reverseFacing(); } else { monster.walkForward(); }
}

});