if (x > global.idealborder[0] && obj_time.left)
    x -= 4;
if (x < (global.idealborder[1] - 16) && obj_time.right)
    x += 4;
if (y > global.idealborder[2] && obj_time.up)
    y -= 4;
if (y < (global.idealborder[3] - 16) && obj_time.down)
    y += 4;
shot = 0;
if (instance_exists(obj_heartshot) == 0 || charge < 0)
    shot = 1;
if (keyboard_check_pressed(ord("Z")) && shot == 1)
{
    instance_create(x + 4, y + 2, obj_heartshot);
    charge = 30;
}
charge -= 1;
global.testinv -= 1;
if (global.testinv > 0)
{
    image_speed = 1;
}
else
{
    image_speed = 0;
    image_index = 0;
}