/*
13/02/19 by Stratovarius

Black Fire. OnHB

Apprentice, Dark Terrain 
Level/School: 2nd/Evocation [Cold] 
Range: Close (25 ft. + 5 ft./2 levels) 
Area: Wall of Black Flame
Duration: 1 round/level 
Saving Throw: Reflex negates
Spell Resistance: Yes

You open a conduit to the Plane of Shadow, drawing its elements into the world and igniting a black fire on the ground.

You create a shadowy curtain of black flame that covers the affected squares. The fire deals 1d6 points of cold damage per two caster levels, Reflex negates.
*/

#include "shd_inc_shdfunc"

void main()
{
    if (!GetIsObjectValid(GetAreaOfEffectCreator()))
    {
        DestroyObject(OBJECT_SELF);
        return;
    }

    //Declare major variables
    object oShadow = GetAreaOfEffectCreator();
    struct mystery myst = GetLocalMystery(oShadow, MYST_HOLD_MYST+"1");  
    int nDice = myst.nShadowcasterLevel/2;  

    //Capture the first target object in the shape.
    object oTarget = GetFirstInPersistentObject(OBJECT_SELF, OBJECT_TYPE_CREATURE | OBJECT_TYPE_DOOR | OBJECT_TYPE_PLACEABLE);
    while(GetIsObjectValid(oTarget))
    {    
        if (spellsIsTarget(oTarget, SPELL_TARGET_STANDARDHOSTILE, oShadow))
        {
            //Make SR check, and appropriate saving throw(s).
            if(!PRCDoResistSpell(oShadow, oTarget, myst.nPen) || myst.bIgnoreSR)
            {
                int nDamage = MetashadowsDamage(myst, 6, nDice);
    
                // Yes, it's reflex negates, not half
                if(!PRCMySavingThrow(SAVING_THROW_REFLEX, oTarget, myst.nSaveDC, SAVING_THROW_TYPE_COLD))
                {
                    // Apply effects to the currently selected target.
                    SPApplyEffectToObject(DURATION_TYPE_INSTANT, PRCEffectDamage(oTarget, nDamage, DAMAGE_TYPE_COLD), oTarget);
                    SPApplyEffectToObject(DURATION_TYPE_INSTANT, EffectVisualEffect(VFX_IMP_FLAME_M_PURPLE), oTarget);
                }
            }
        }
        //Select the next target within the spell shape.
        oTarget = GetNextInPersistentObject(OBJECT_SELF,OBJECT_TYPE_CREATURE | OBJECT_TYPE_DOOR | OBJECT_TYPE_PLACEABLE);
    }    
}