056 : Monster collisions
Balthazar:
The monster is drawn, but you can just walk right through it. That's no fun.
Balthazar:
We can update our collision to support monsters.
function check_platform_collisions() {
...
}
function check_monster_collisions() {
var monsters = _game.monsters;
for (var i = 0; i < monsters.length; i++) {
var m = monsters[i];
if (collide(m, _player)) {
_game.game_over = true;
}
}
}
function check_goal_collisions() {
...
}
function check_monster_collisions() {
var monsters = _game.monsters;
for (var i = 0; i < monsters.length; i++) {
var m = monsters[i];
if (collide(m, _player)) {
_game.game_over = true;
}
}
}
function check_goal_collisions() {
...
}
Balthazar:
and update check_collisions():
function check_collisions() {
check_platform_collisions();
check_monster_collisions();
check_goal_collisions();
}
check_monster_collisions();
check_goal_collisions();
}
Balthazar:
Now monsters are dangerous. If you collide with it the game will end. But you can easily jump over it at this time.
Balthazar:
Adding a second monster is as easy as:
function init_game() {
...
_game.monsters = [];
_game.monsters.push(create_monster(350, 360, 20, 20));
_game.monsters.push(create_monster(400, 360, 20, 20));
_game.goal = create_goal(500, 360);
...
}
_game.monsters.push(create_monster(400, 360, 20, 20));
_game.goal = create_goal(500, 360);
...
}
Congratulations! You've earned the Monster I - Stationary badge!