//::///////////////////////////////////////////////
//:: Name      Ice Knife
//:: FileName  sp_ice_knife.nss
//:://////////////////////////////////////////////
/**@file Ice Knife
Conjuration (Creation) [Cold]
Level: Assassin 2, wu jen 2 (water),warmage 2
Components: S, M
Casting Time: 1 standard action
Range: Long (400 ft. + 40 ft./level)
Effect: One icy missile
Duration: Instantaneous
Saving Throw: See text
Spell Resistance: Yes

A magical shard of ice blasts from your
hand and speeds to its target. You must
succeed on a normal ranged attack to
hit (with a +2 bonus on the attack roll
for every two caster levels). If it hits, 
an ice knife deals 2d8 points of cold 
damage plus 2 points of Dexterity damage
(no Dexterity damage on a successful
Fortitude save). Creatures that have
immunity to cold damage also take no
Dexterity damage automatically.

A knife that misses creates a shower
of ice crystals in a 10-foot-radius burst.
The icy burst deals 1d8 points of cold
damage to all creatures within the area
of the effect (Reflex half).

Author:    Tenjac
Created:   7/6/07
*/
//:://////////////////////////////////////////////
//:://////////////////////////////////////////////

#include "prc_inc_sp_tch"
#include "x0_i0_position"
#include "prc_add_spell_dc"

void main()
{
    if(!X2PreSpellCastCode()) return;

    PRCSetSchool(SPELL_SCHOOL_CONJURATION);

    object oCaster = OBJECT_SELF;
    object oTarget = PRCGetSpellTargetObject();
    location lTarget = GetLocation(oTarget);
    int nCasterLvl = PRCGetCasterLevel(oCaster);
    int nMetaMagic = PRCGetMetaMagicFeat();
    int nDC = PRCGetSaveDC(oTarget, oCaster);
    int nAttackBonus = (nCasterLvl/2)*2;
    int iAttackRoll = PRCDoRangedTouchAttack(oTarget, TRUE, oCaster, nAttackBonus);
    int nDamageType = ChangedElementalDamage(oCaster, DAMAGE_TYPE_COLD);
    int nDam;
    effect eImp = EffectVisualEffect(VFX_IMP_FROST_S);
    effect eVis = EffectVisualEffect(VFX_IMP_FROST_L);
    effect eDam;

    nCasterLvl += SPGetPenetr();

    if(iAttackRoll)
    {
        SignalEvent(oTarget, EventSpellCastAt(oCaster, SPELL_ICE_KNIFE));

        if(!PRCDoResistSpell(oCaster, oTarget, nCasterLvl))
        {
            nDam = d8(2);
            if (nMetaMagic & METAMAGIC_MAXIMIZE)
                nDam = 16;
            if (nMetaMagic & METAMAGIC_EMPOWER)
                nDam += (nDam/2);
			nDam += SpellDamagePerDice(oCaster, 2);
            //if failed, ability damage
            if(!PRCMySavingThrow(SAVING_THROW_FORT, oTarget, nDC, SAVING_THROW_TYPE_COLD))
            {
                int nDexPenalty = 2 * iAttackRoll;//double damage in case of *Critical Hit*
                ApplyAbilityDamage(oTarget, ABILITY_DEXTERITY, nDexPenalty, DURATION_TYPE_TEMPORARY, TRUE, -1.0f);
            }

            //Apply damage even if they are immune - can't hurt
            ApplyTouchAttackDamage(oCaster, oTarget, iAttackRoll, nDam, nDamageType);
            PRCBonusDamage(oTarget);

            SPApplyEffectToObject(DURATION_TYPE_INSTANT, eImp, oTarget);
        }
    }
    else
    {
        //missed, so do AoE
        float fDistance = IntToFloat(Random(9));   //random distance for new loc
        float fAngle = IntToFloat(Random(359));   //random angle from original

        //Orientation doesn't matter, so make it 0.0f
        location lAoE = GenerateNewLocationFromLocation(lTarget, fDistance, fAngle, 0.0f);
        ApplyEffectAtLocation(DURATION_TYPE_INSTANT, eVis, lAoE);

        oTarget = MyFirstObjectInShape(SHAPE_SPHERE, FeetToMeters(10.0f), lAoE, TRUE, OBJECT_TYPE_CREATURE | OBJECT_TYPE_PLACEABLE | OBJECT_TYPE_DOOR);

        while(GetIsObjectValid(oTarget))
        {
            SignalEvent(oTarget, EventSpellCastAt(oCaster, SPELL_ICE_KNIFE));

            if(!PRCDoResistSpell(oCaster, oTarget, nCasterLvl))
            {
                nDam = d8(1);
                if (nMetaMagic & METAMAGIC_MAXIMIZE)
                    nDam = 8;
                if (nMetaMagic & METAMAGIC_EMPOWER)
                    nDam += (nDam/2);
				nDam += SpellDamagePerDice(oCaster, 1);
                nDam = PRCGetReflexAdjustedDamage(nDam, oTarget, nDC, SAVING_THROW_TYPE_COLD);

                if(nDam > 0)
                {
                    eDam = PRCEffectDamage(oTarget, nDam, nDamageType);
                    SPApplyEffectToObject(DURATION_TYPE_INSTANT, eDam, oTarget);
                    SPApplyEffectToObject(DURATION_TYPE_INSTANT, eImp, oTarget);
                    PRCBonusDamage(oTarget);
                }
            }
            oTarget = MyNextObjectInShape(SHAPE_SPHERE, FeetToMeters(10.0f), lAoE, TRUE, OBJECT_TYPE_CREATURE | OBJECT_TYPE_PLACEABLE | OBJECT_TYPE_DOOR);
        }
    }
    PRCSetSchool();
}