//=======================================================================================================
// Recipe System
// By Fredbrik(Diablo-dk)
//
//=======================================================================================================
//globals
//integer               RN=0 // Recipe number.
//trigger               RT=CreateTrigger() // Main recipe trigger.
//boolean               RC=true
//integer array         itemid1
//integer array         itemid2
//integer array         itemid3
//integer array         itemid4
//integer array         itemid5
//integer array         itemid6
//integer array         ic //item count
//integer array         output
//endglobals
//=======================================================================================================
// User changeable constants
//=======================================================================================================
constant function Recipe_Effect takes nothing returns string
     return "Abilities\\Spells\\Items\\AIem\\AIemTarget.mdl" //An effect that comes whenever a recipe is made.
endfunction

constant function Recipe_AP takes nothing returns string
     return "origin" //Attachment point for Recipe_Effect()
endfunction
//=======================================================================================================
// This function will return the first item of entered Id in the unit's inventory.
function GetItem takes unit u, integer Id returns item
     local integer i=0
     local item it
     loop
         exitwhen i==6
         if GetItemTypeId(UnitItemInSlot(u,i)) == Id then
             return UnitItemInSlot(u,i)
         set i=5
         endif
         set i=i+1
     endloop
     return null
endfunction
//==============================
function HasItems takes unit u, integer i returns boolean
     local integer index=0
     local integer id=-1
     local integer b1=0
     local integer b2=0
     local integer b3=0
     local integer b4=0
     local integer b5=0
     local integer b6=0
     loop
         exitwhen index==6
         set id=GetItemTypeId(UnitItemInSlot(u,index))
         if id == 0 then
             set id=-1
         endif
         if id == udg_itemid1[i] and b1 == 0 then
             set b1=1
             set id=-1
         endif
         if id == udg_itemid2[i] and b2 == 0 then
             set b2=1
             set id=-1
         endif
         if id == udg_itemid3[i] and b3 == 0 then
             set b3=1
             set id=-1
         endif
         if id == udg_itemid4[i] and b4 == 0 then
             set b4=1
             set id=-1
         endif
         if id == udg_itemid5[i] and b5 == 0 then
             set b5=1
             set id=-1
         endif
         if id == udg_itemid6[i] and b6 == 0 then
             set b6=1
             set id=-1
         endif
         if b1+b2+b3+b4+b5+b6 == udg_ic[i] then
             return true
         endif
         set index=index+1
     endloop
     return false
endfunction
//=======================================================================================================
// User Functions:
// Recipe Creating:
//
//=======================================================================================================
function CreateRecipe takes integer i1,integer i2,integer i3,integer i4,integer i5,integer i6,integer output returns nothing
     set udg_RN=udg_RN+1
     set udg_itemid1[udg_RN]=i1
     set udg_itemid2[udg_RN]=i2
     set udg_ic[udg_RN]=2
     if i3 != 0 then
         set udg_itemid3[udg_RN]=i3
         set udg_ic[udg_RN]=udg_ic[udg_RN]+1
     endif
     if i4 != 0 then
         set udg_itemid4[udg_RN]=i4
         set udg_ic[udg_RN]=udg_ic[udg_RN]+1
     endif
     if i5 != 0 then
         set udg_itemid5[udg_RN]=i5
         set udg_ic[udg_RN]=udg_ic[udg_RN]+1
     endif
     if i6 != 0 then
         set udg_itemid6[udg_RN]=i6
         set udg_ic[udg_RN]=udg_ic[udg_RN]+1
     endif
     set udg_output[udg_RN]=output
endfunction
function CreateRecipe2 takes integer i1,integer i2,integer i3 returns nothing
     set udg_RN=udg_RN+1
     set udg_itemid1[udg_RN]=i1
     set udg_itemid2[udg_RN]=i2
     set udg_output[udg_RN]=i3
     set udg_ic[udg_RN]=2
endfunction

// Creates a recipe that requires 2 items to combine into a new item. i3 is the combined item.
// Example: call CreateRecipe2('I000','I001','I002')
function CreateRecipe3 takes integer i1,integer i2,integer i3,integer i4 returns nothing
     set udg_RN=udg_RN+1
     set udg_itemid1[udg_RN]=i1
     set udg_itemid2[udg_RN]=i2
     set udg_itemid3[udg_RN]=i3
     set udg_output[udg_RN]=i4
     set udg_ic[udg_RN]=3
endfunction

// The same as CreateRecipe2 except this requires 3 items to combine. i4 is the combined item.
function CreateRecipe4 takes integer i1,integer i2,integer i3,integer i4,integer i5 returns nothing
     set udg_RN=udg_RN+1
     set udg_itemid1[udg_RN]=i1
     set udg_itemid2[udg_RN]=i2
     set udg_itemid3[udg_RN]=i3
     set udg_itemid4[udg_RN]=i4
     set udg_output[udg_RN]=i5
     set udg_ic[udg_RN]=4
endfunction

// The same as CreateRecipe2 except this requires 4 items to combine. i5 is the combined item.
function CreateRecipe5 takes integer i1,integer i2,integer i3,integer i4,integer i5,integer i6 returns nothing
     set udg_RN=udg_RN+1
     set udg_itemid1[udg_RN]=i1
     set udg_itemid2[udg_RN]=i2
     set udg_itemid3[udg_RN]=i3
     set udg_itemid4[udg_RN]=i4
     set udg_itemid5[udg_RN]=i5
     set udg_output[udg_RN]=i6
     set udg_ic[udg_RN]=5
endfunction

// The same as CreateRecipe2 except this requires 5 items to combine. i6 is the combined item.
function CreateRecipe6 takes integer i1,integer i2,integer i3,integer i4,integer i5,integer i6,integer i7 returns nothing
     set udg_RN=udg_RN+1
     set udg_itemid1[udg_RN]=i1
     set udg_itemid2[udg_RN]=i2
     set udg_itemid3[udg_RN]=i3
     set udg_itemid4[udg_RN]=i4
     set udg_itemid5[udg_RN]=i5
     set udg_itemid6[udg_RN]=i6
     set udg_output[udg_RN]=i7
     set udg_ic[udg_RN]=6
endfunction

// The same as CreateRecipe2 except this requires 6 items to combine. i7 is the combined item.
//===================================================================================================
// This function disassembles a recipe item to its original components.

function DisItem takes unit u,item it returns boolean
     local integer c=GetItemUserData(it)
     local item array newitem
     local integer i=udg_ic[c]
     if it != null then
         if i <= 6-UnitInventoryCount(u)+1 and i > 0 then
             set udg_RC=false
             if udg_itemid2[c] != null then
                 set newitem[1]=CreateItem(udg_itemid1[c],GetUnitX(u),GetUnitY(u))
                 set newitem[2]=CreateItem(udg_itemid2[c],GetUnitX(u),GetUnitY(u))
                 endif
             if udg_itemid3[c] != null then
                 set newitem[3]=CreateItem(udg_itemid3[c],GetUnitX(u),GetUnitY(u))
                 call UnitAddItem(u,newitem[3])
             endif
             if udg_itemid4[c] != null then
                 set newitem[4]=CreateItem(udg_itemid4[c],GetUnitX(u),GetUnitY(u))
                 call UnitAddItem(u,newitem[4])
             endif
             if udg_itemid5[c] != null then
                 set newitem[5]=CreateItem(udg_itemid5[c],GetUnitX(u),GetUnitY(u))
                 call UnitAddItem(u,newitem[5])
             endif
             if udg_itemid6[c] != null then
                 set newitem[6]=CreateItem(udg_itemid6[c],GetUnitX(u),GetUnitY(u))
                 call UnitAddItem(u,newitem[6])
             endif
             call RemoveItem(it)
             call UnitAddItem(u,newitem[1])
             call UnitAddItem(u,newitem[2])

         set newitem[1]=null
         set newitem[2]=null
         set newitem[3]=null
         set newitem[4]=null
         set newitem[5]=null
         set newitem[6]=null
         set udg_RC=true
         else
             return false
         endif
     endif
     return true
endfunction
//=======================================================================================================
//
//Main Recipe Function: Do not change unless you know what you are doing
//
//=======================================================================================================
function Recipe_Main takes nothing returns nothing
     local item it
     local integer i=0
     local unit u=GetManipulatingUnit()
     loop
         exitwhen i==udg_RN
         set i=i+1
         if udg_RC == true then
             if udg_ic[i] == 6 then
                 if HasItems(u,i) then
                     call RemoveItem(GetItem(u,udg_itemid1[i]))
                     call RemoveItem(GetItem(u,udg_itemid2[i]))
                     call RemoveItem(GetItem(u,udg_itemid3[i]))
                     call RemoveItem(GetItem(u,udg_itemid4[i]))
                     call RemoveItem(GetItem(u,udg_itemid5[i]))
                     call RemoveItem(GetItem(u,udg_itemid6[i]))
                     call DestroyEffect(AddSpecialEffectTarget(Recipe_Effect(),u,Recipe_AP()))
                     set it=CreateItem(udg_output[i],GetUnitX(u),GetUnitY(u))
                     call SetItemUserData(it,i) //Used for disassembling.
                     call UnitAddItem(u,it)
                     set i=udg_RN
                 endif
             elseif udg_ic[i] == 5 then
                 if HasItems(u,i) then
                     call RemoveItem(GetItem(u,udg_itemid1[i]))
                     call RemoveItem(GetItem(u,udg_itemid2[i]))
                     call RemoveItem(GetItem(u,udg_itemid3[i]))
                     call RemoveItem(GetItem(u,udg_itemid4[i]))
                     call RemoveItem(GetItem(u,udg_itemid5[i]))
                     call DestroyEffect(AddSpecialEffectTarget(Recipe_Effect(),u,Recipe_AP()))
                     set it=CreateItem(udg_output[i],GetUnitX(u),GetUnitY(u))
                     call SetItemUserData(it,i) //Used for disassembling.
                     call UnitAddItem(u,it)
                     set i=udg_RN
                 endif
             elseif udg_ic[i] == 4 then
                 if HasItems(u,i) then
                     call RemoveItem(GetItem(u,udg_itemid1[i]))
                     call RemoveItem(GetItem(u,udg_itemid2[i]))
                     call RemoveItem(GetItem(u,udg_itemid3[i]))
                     call RemoveItem(GetItem(u,udg_itemid4[i]))
                     call DestroyEffect(AddSpecialEffectTarget(Recipe_Effect(),u,Recipe_AP()))
                     set it=CreateItem(udg_output[i],GetUnitX(u),GetUnitY(u))
                     call SetItemUserData(it,i) //Used for disassembling.
                     call UnitAddItem(u,it)
                     set i=udg_RN
                 endif
             elseif udg_ic[i] == 3 then
                 if HasItems(u,i) then
                     call RemoveItem(GetItem(u,udg_itemid1[i]))
                     call RemoveItem(GetItem(u,udg_itemid2[i]))
                     call RemoveItem(GetItem(u,udg_itemid3[i]))
                     call DestroyEffect(AddSpecialEffectTarget(Recipe_Effect(),u,Recipe_AP()))
                     set it=CreateItem(udg_output[i],GetUnitX(u),GetUnitY(u))
                     call SetItemUserData(it,i) //Used for disassembling.
                     call UnitAddItem(u,it)
                     set i=udg_RN
                 endif
             elseif udg_ic[i] == 2 then
                 if HasItems(u,i) then
                     call RemoveItem(GetItem(u,udg_itemid1[i]))
                     call RemoveItem(GetItem(u,udg_itemid2[i]))
                     call DestroyEffect(AddSpecialEffectTarget(Recipe_Effect(),u,Recipe_AP()))
                     set it=CreateItem(udg_output[i],GetUnitX(u),GetUnitY(u))
                     call SetItemUserData(it,i) //Used for disassembling.
                     call UnitAddItem(u,it)
                     set i=udg_RN
                 endif
             endif
         endif
     endloop
     set it=null
     set u=null
endfunction
function InitRecipe takes nothing returns nothing
     set udg_RT=CreateTrigger()
     set udg_RC=true
     call TriggerRegisterAnyUnitEventBJ( udg_RT, EVENT_PLAYER_UNIT_PICKUP_ITEM )
     call TriggerAddAction(udg_RT,function Recipe_Main)
endfunction
//call this at map init.

//forced by WE
function InitTrig_Recipe takes nothing returns nothing
endfunction
// End Recipe

call CreateRecipe2('rde1','rde2','rde3')