x_spd = 0;
y_spd = 0;
facing = 1;

credit = 0;

hp = 1;

hitstun_timer = 0;
hitstun_max = 10;
kb_factor = 1.0;

collision_hitbox = noone;

is_dead = false;

state = undefined;

enemy_ai = function(){};

animation_spd = 0.25;
image_speed = 0;

get_hit = false;

hitbox = noone;

// shader
flash_timer = 0;
flash_timer = 0;
u_flash_alpha = shader_get_uniform(sh_flash, "f_alpha");