Stuff

if(grounded)
		jumped &= ~2;
	
	if(input.jump)
	{
		if(!(jumped&1))
		{
			if(grounded)
			{
				triggered_events |= COREEVENT_GROUND_JUMP;
				vel.y = -world->tuning.ground_jump_impulse;
				jumped |= 1;
			}
			else if(!(jumped&2))
			{
				triggered_events |= COREEVENT_AIR_JUMP;
				vel.y = -world->tuning.air_jump_impulse;
				jumped |= 3;
			}
		}
	}
	else
		jumped &= ~1;