switch (sprite_index)
{
    case sItemMissile:
    scr_missile_character_event();
    break;
    case sItemSuperMissile:
    scr_supermissile_character_event();
    break;
    case sItemEnergyTank:
    scr_energytank_character_event();
    break;
    case sItemPowerBomb:
    scr_powerbomb_character_event();
    break;    
}