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var grounded = place_meeting(x, y + 1, _tilemap);
	
if (place_meeting(x, y + 1, obj_crate)) {
    
	obj_crate.hsp = 0;
	
	// provide a window to jump
    if (keyboard_check_pressed(ord("W"))) {
		vsp += vspJump
		allow_jump_duration = 5;
	} 
	
	// stop vertical movement when not jumping
	if (allow_jump_duration <= 0) {
        vsp = 0;
		y -= grv;
    }
}

if(place_meeting(x, y - 2, obj_crate)) {
	obj_crate.hsp = hsp * hspWalk;
}

allow_jump_duration -= 1;