func void DIAG_Apply(var c_npc slf, var int gesture) {
    AI_Function_II(slf, "_DIAG_APPLY", MEM_InstToPtr(slf), gesture);
};
func void _DIAG_Apply(var int slfPtr, var int gesture) {
    var c_npc slf; slf = MEM_PtrToInst(slfPtr);
    var int i; i = 0;
    var int p; p = MEM_StackPos.position;
    if(i < DIAG_MAX) {
        var string str; str = ReadStringArr("DIAG_OVERLAYS", i);
        if(i == gesture) {
            Mdl_ApplyOverlayMds(slf, str);
        }
        else {
            Mdl_RemoveOverlayMds(slf, str);
        };
        i += 1;
        MEM_StackPos.position = p;
    };
};