player_width = 54;

player_height = 90;

acceleration = 0.2;

deceleration = 0.2;

max_speed = 6;

max_vspeed = 10;

jump_speed = 10;

gravity = 0.2;

difficulty_level = 1;

enemy_speed = 0.5;

enemy_height = 40;

enemy_width = 50;

weapon_hit_distance = 50;