Snippet RawDamage

Dirac

22710180
Reaction score
147
JASS:
library RawDamage /* v1.0.5

*/uses/*
*/  DamageMod   /* thehelper.net/forums/showthread.php/168198-Damage-Mod

A useful tool to handle raw damage from units.

**********************************************************************/
globals
    constant integer RAW_DAMAGE_PRIORITY    =1
    //The priority sets before and after which damage mods the raw damage
    //is dealt.
endglobals
/**********************************************************************
*
*   struct RawDamage
*
*       -   Modifies unit damage by exact values.
*       -   Takes the unit's custom value as an instance.
*
*       real input
*           -   Determines how much extra damage the unit receives when
*           -   it takes damage.
*       real output
*           -   Determines how much extra damage the unit deals when
*           -   it deals damage.
*       readonly static DamageMod MOD
*           -   The mod used for this code.
*       method addOutputFilter takes code func returns triggercondition
*       method addInputFilter takes code func returns triggercondition
*           -   If the filter returns false then it skips damage
*           -   modification.
*       method removeOutputFilter takes triggercondition whichCondition returns nothing
*       method removeInputFilter takes triggercondition whichCondition returns nothing
*           -   Disables the filter
*
*********************************************************************/

    private module RawDamageModule
        readonly static DamageMod   MOD
        private         trigger     outputTrig
        private         trigger     inputTrig
                        real        output
                        real        input
        
        method addOutputFilter takes code func returns triggercondition
            if null==this.outputTrig then
                set this.outputTrig=CreateTrigger()
            endif
            return TriggerAddCondition(this.outputTrig,Filter(func))
        endmethod
        
        method removeOutputFilter takes triggercondition whichCondition returns nothing
            call TriggerRemoveCondition(this.outputTrig,whichCondition)
        endmethod
        
        method addInputFilter takes code func returns triggercondition
            if null==this.inputTrig then
                set this.inputTrig=CreateTrigger()
            endif
            return TriggerAddCondition(this.inputTrig,Filter(func))
        endmethod
        
        method removeInputFilter takes triggercondition whichCondition returns nothing
            call TriggerRemoveCondition(this.inputTrig,whichCondition)
        endmethod
        
        private static method onDamage takes nothing returns boolean
            local real result=thistype(Damage.sourceId).output-thistype(Damage.targetId).input
            if result>0 then
                if not(null==thistype(Damage.sourceId).outputTrig) then
                    if not(TriggerEvaluate(thistype(Damage.targetId).outputTrig)) then
                        return false
                    endif
                endif
                call Damage.add(result)
            elseif result<0 then
                if not(null==thistype(Damage.targetId).inputTrig) then
                    if not(TriggerEvaluate(thistype(Damage.targetId).inputTrig)) then
                        return false
                    endif
                endif
                call Damage.prevent(result)
            endif
            return false
        endmethod
        
        private static method onInit takes nothing returns nothing
            set MOD=DamageMod.create(function thistype.onDamage,RAW_DAMAGE_PRIORITY)
        endmethod
    endmodule
    
    struct RawDamage extends array
        implement RawDamageModule
    endstruct
endlibrary
 

Dirac

22710180
Reaction score
147
Update v1.03
-Fixed important bug that was causing the snippet to malfunction
 
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