078 : Even more platforms
Balthazar:
Try it out to see how it works.
Balthazar:
When you land on the top it works well, but when you hit the bottom or sides, it acts a bit weird. You always jump to the top of the platform.
Balthazar:
Indeed, all collisions with the platforms are currently assumed to be at the top.
Balthazar:
To fix this, we need to do a better job with our collision detection. In addition to answering the question "did object A collide with object B", we also need to know if object B (the player) collided with the top, bottom, left or right of object A (the platform).
Balthazar:
Not surprisingly, this is a bit more complicated than the simple collision detection we did earlier.
Balthazar:
But before doing that add a few more platforms:
function init_game() {
...
_game.platforms = [];
_game.platforms.push(create_platform(0, 360, _game.width, 40));
_game.platforms.push(create_platform(200, 290, 80, 20));
_game.platforms.push(create_platform(300, 240, 80, 20));
_game.platforms.push(create_platform(400, 170, 80, 20));
_game.platforms.push(create_platform(460, 110, 40, 20));
...
}
_game.platforms.push(create_platform(300, 240, 80, 20));
_game.platforms.push(create_platform(400, 170, 80, 20));
_game.platforms.push(create_platform(460, 110, 40, 20));
...
}