//Made by Lunar
//Version 1.6
//6.1.09
 
-   shop    quest_shop  -1,501:50
prontera,147,173,5, script  Dynamic Shop NPC    899,{
    set @i,0;
    mes "[Shop Quest NPC]";
    mes "Which item do you wish to obtain?";
    mes "Select only one.";
    callshop "quest_shop",1;
    npcshopattach "quest_shop";
    end;
 
OnBuyItem:
    if(.BuildQuest) {
        for(set .e,0; !compare(getarg(.e+1),"Zeny"); set .e,.e+2) {}
        npcshopadditem "quest_shop",getarg(.e+2),getarg(.e)*compare(getarg(.e+1),"SZeny");
        setarray .Shop[.i],getarg(.e+2);
        set .i,.i+1;
        goto Quest_Setup;
    }
    if(.Shop[@i]!=@bought_nameid) for(set @i,1; 1; set @i,@i+1) if(.Shop[@i]==@bought_nameid) { set .i,@i; callsub Quest_Setup; }
    for(set @i,1; !@e; set @i,@i+1) if(.Shop[@i]==@bought_nameid) { set @e,1; set .i,@i; callsub Quest_Setup; }
    mes "[Shop Quest NPC]";
    mes "I require the following:";
    for(set @i,0; !compare(getarg(@i+1),"Zeny"); set @i,@i+2) mes "^FF0000" + ((countitem(getarg(@i))>=getarg(@i+1))? "^00FF00":"") + "" + getarg(@i+1) + " " + getitemname(getarg(@i)) + " [" + countitem(getarg(@i)) + "/" + getarg(@i+1) + "]";
    if(getarg(@i)) mes "^FF0000" + ((Zeny>=getarg(@i))? "^00FF00":"") + "" + getarg(@i) + " Zeny";
    mes "^000000In exchange, I will give you:^0000FF";
    for(set @i,@i+2; getarg(@i+1,0); set @i,@i+2) mes getarg(@i+1) + " " + getitemname(getarg(@i));
    switch(select("Exchange:" + (((((getiteminfo(@bought_nameid,5) & 1) || (getiteminfo(@bought_nameid,5) & 256) || (getiteminfo(@bought_nameid,5) & 512)) && @equip==0))? "Preview Item":"") + ":No thanks")) {
        case 1:
            for(set @i,0; !compare(getarg(@i+1),"Zeny"); set @i,@i+2) if(countitem(getarg(@i)) < getarg(@i+1)) {
                next;
                mes "You have " + countitem(getarg(@i)) + " " + getitemname(getarg(@i)) + ", while I require " + getarg(@i+1) + ".";
                mes "Please obtain ^FF0000" + (getarg(@i+1)-countitem(getarg(@i))) + " more " + getitemname(getarg(@i)) + "^000000.";
                close;
            }
            if(Zeny < getarg(@i)) {
                next;
                mes "You do not have enough Zeny.";
                mes "Please obtain ^FF0000" + (getarg(@i)-Zeny) + " more Zeny^000000.";
                close;
            }
            for(set @i,0; !compare(getarg(@i+1),"Zeny"); set @i,@i+2) delitem getarg(@i),getarg(@i+1);
            set Zeny,Zeny-getarg(@i);
            for(set @i,@i+2; getarg(@i+1,0); set @i,@i+2) getitem getarg(@i),getarg(@i+1);
            if (compare(getarg(@i,0),"announce")) announce strcharinfo(0) + " has just obtained " + getitemname(@bought_nameid) + "!",bc_all;
            close;
        case 2:
            set @bottomview, getlook(3);
            set @topview, getlook(4);
            set @midview, getlook(5);
            addtimer 1000, strnpcinfo(3)+"::On_Leave";
            set @equip,getiteminfo(@bought_nameid, 5);
            set @view, getiteminfo(@bought_nameid, 11);
            if(@equip != -1 && @view > 0) {
                if(@equip & 1) atcommand "@changelook 3 " + @view;
                if(@equip & 256) atcommand "@changelook 1 " + @view;
                if(@equip & 512) atcommand "@changelook 2 " + @view;
            }
            next;
            goto OnBuyItem;
        case 3:
            close;
    }
On_Leave:
    atcommand "@changelook 1 " + @topview;
    atcommand "@changelook 2 " + @midview;
    atcommand "@changelook 3 " + @bottomview;
    set @equip,0;
    set @view,0;
    set @topview,0;
    set @midview,0;
    set @bottomview,0;
    end;
OnInit:
    npcshopitem "quest_shop",0,0;
    set .BuildQuest,1;
    set .i,1;
Quest_Setup:
    switch(.i) {
        default: set .BuildQuest,0; set .e,0; set .i,0; end;
        case 1: callsub OnBuyItem,50,"SZeny",501,1,"announce";
        case 2: callsub OnBuyItem,502,1,0,"SZeny",502,1;
        case 3: callsub OnBuyItem,502,1,1000,"Zeny",504,1,501,1;
        case 4: callsub OnBuyItem,923,20,1000,"SZeny",2284,1,501,1,"announce";
    }
}