Method update

examples/shorts/platformer.js:9–19

()

    }

    update()
    {
        // apply movement controls
        const moveInput = keyDirection();
        this.velocity.x += moveInput.x * (this.groundObject ? .1: .01);
        if (this.groundObject && moveInput.y > 0)
            this.velocity.y = .9; // jump

        // move camera with player
        cameraPos = vec2(this.pos.x, 9); 
    }
}

function gameInit()