///objSolid begin_step
if (other.crushPlayer) {
    show_debug_message("crushed at right");
    if (!global.debugInvincibility)
        global._health = 0;
}
else {
    if (floor(y) < floor(bbox_get_ycenter(other)))
        shunt_up(id, other.id, true, false);
    else
        shunt_down(id, other.id, true, false);
}

///shunt_down(id, [_solid = other], [is_first = true], [is_left = true])
var ins = id;
var _solid = other;
if (argument_count > 2)
    _solid = argument[2];
var is_first = true;
if (argument_count > 3)
    is_first = argument[3];
var is_left = true;
if (argument_count > 4)
    is_left = argument[4];

with(_solid) {
    var shunt_block_check = collision_rectangle(floor(ins.bbox_left), ceil(bbox_bottom) + 32, ceil(ins.bbox_right), ceil(bbox_bottom) + 1, objSolid, false, true);
}
if (!shunt_block_check) {
    ins.y = ceil(_solid.bbox_bottom) + (floor(bbox_get_height(ins) / 2) + 1);
    hit_player(_solid.contactDamage);
    if (is_left)
        show_debug_message("Shunted down from left.");
    else
        show_debug_message("Shunted down from right.");
}
else {
    if (is_first) {
        shunt_up(ins, _solid, false, is_left);
    }
    else {
        if (is_left)
            show_debug_message("Failed to shunt from left. Crushing now.");
        else
            show_debug_message("Failed to shunt from right. Crushing now.");
        if (!global.debugInvincibility)
            global._health = 0;
    }
}