PRC8/nwn/nwnprc/trunk/spells/sp_ai_sphereofud.nss

#include "prc_inc_sp_tch"
//#include "nw_i0_generic"
//#include "x0_inc_generic"
#include "prc_add_spell_dc"
#include "x0_inc_generic"

//
// Does the disintegrate logic.
//
void DoDisintegrate(object oCaster, object oTarget, int nSpellSaveDC, int nSR)
{
    if (spellsIsTarget(oTarget, SPELL_TARGET_STANDARDHOSTILE, oCaster))
    {    // Make SR check
        if (!PRCDoResistSpell(oCaster, oTarget, nSR))
        {
            // Make the touch attack.               
            int nTouchAttack = PRCDoMeleeTouchAttack(oTarget);;
            if (nTouchAttack > 0)
            {
                // Generate the RTA beam.   
                SPApplyEffectToObject(DURATION_TYPE_TEMPORARY, 
                    EffectBeam(VFX_BEAM_ODD, OBJECT_SELF, BODY_NODE_CHEST), oTarget, 1.0,FALSE);
    
                // Fort save or die time, but we implement death by doing massive damage
                // since disintegrate works on constructs, undead, etc.  At some point EffectDie()
                // should be tested to see if it works on non-living targets, and if it does it should
                // be used instead.
                int nDamage = 9999;
                if (PRCMySavingThrow(SAVING_THROW_FORT, oTarget, nSpellSaveDC, SAVING_THROW_TYPE_SPELL, oCaster))
                {
	    		if (GetHasMettle(oTarget, SAVING_THROW_FORT))
	    		// This script does nothing if it has Mettle, bail
	    			return;
	    		
                    nDamage = PRCGetMetaMagicDamage(DAMAGE_TYPE_MAGICAL, 
                        1 == nTouchAttack ? 5 : 10, 6, 0, 0, 0); 
                    nDamage += SpellDamagePerDice(oCaster, 5);    
                }
                // Apply damage effect and VFX impact, and if the target is dead then apply
                // the fancy rune circle too.
                if (nDamage >= GetCurrentHitPoints (oTarget)) 
                    DelayCommand(0.25, SPApplyEffectToObject(DURATION_TYPE_INSTANT, EffectVisualEffect(VFX_FNF_SUMMON_MONSTER_2), oTarget));
                DelayCommand(0.25, SPApplyEffectToObject(DURATION_TYPE_INSTANT, PRCEffectDamage(oTarget, nDamage, DAMAGE_TYPE_MAGICAL), oTarget));
                DelayCommand(0.25, SPApplyEffectToObject(DURATION_TYPE_INSTANT, EffectVisualEffect(VFX_IMP_MAGBLUE), oTarget));
            }
        }
    }    
}


//
// Returns TRUE if we are in our busy state.
//
int IsBusy()
{
    return GetLocalInt(OBJECT_SELF, "SP_BUSY");
}

//
// Sets/clears the busy state.
//
void SetBusy(int value)
{
    SetLocalInt(OBJECT_SELF, "SP_BUSY", value);
}


//
// Main AI function.  This is invoked by DetermineCombatRound() as it is provided
// as an override to the AI in the sphere's creature template.
//
// Known issues: The sphere still takes AOO's, when it shouldn't.
//
void main()
{
    object oCaster = GetFactionLeader(OBJECT_SELF);
    //SendMessageToPC(oCaster, "sp_ai_sphereofud entering");
    
    // Get the intruder object, the NWN AI saves it in a local variable for us.
    object oIntruder = GetCreatureOverrideAIScriptTarget();
    ClearCreatureOverrideAIScriptTarget();

    // If we don't have a valid enemy then try to find one to pick on.
    if (!GetIsObjectValid(oIntruder) || GetIsDead(oIntruder)) 
        oIntruder = bkAcquireTarget();
    //SendMessageToPC(oCaster, "sp_ai_sphereofud ENEMY = " + GetName(oIntruder));

    // If we don't have an intruder or he's dead then just exit.
    if (!GetIsObjectValid(oIntruder) || GetIsDead(oIntruder)) return;

    // Call AI finished at this point to prevent the default combat AI from running,
    // once we aquire a valid target our AI takes over (we just want to run around
    // and disintegrate things).
    SetCreatureOverrideAIScriptFinished();

    // If we are busy then do nothing.  This is expected behavior because our
    // disintegrate attack is not an action, and thus takes 0 time from the AI's
    // point of view.  We put ourselves in a busy state to wait a round before
    // attacking again.
    if (IsBusy()) 
    {
        //SendMessageToPC(oCaster, "sp_ai_sphereofud BUSY");
        return;
    }

    // Set our busy state.    
    SetBusy(TRUE);
    
    // We have an enemy see if we are in touch attach range.  This range varies
    // depending on the enemie's size, currently it's a fudge number that seems to
    // work ok.
    float fDistance = GetDistanceBetween(OBJECT_SELF, oIntruder);
    //SendMessageToPC(oCaster, "sp_ai_sphereofud range to ENEMEY " + FloatToString(fDistance));
    if (fDistance > 3.0)
    {
        // We are too far for a touch attack, close to the enemy if we aren't already.
        // Once we start closing it is pointless to spam the action queue with close
        // requests.
        if (ACTION_MOVETOPOINT != GetCurrentAction(OBJECT_SELF))
        {
            //SendMessageToPC(oCaster, "sp_ai_sphereofud closing with ENEMY");
            ActionForceMoveToObject(oIntruder, TRUE);
        }
        //else
        //SendMessageToPC(oCaster, "sp_ai_sphereofud waiting to close");

        // Clear the busy state so we can handle more actions.  Ideally we should
        // remain busy until we close, but there is no way to know when this happens.
        SetBusy(FALSE);
    }
    else
    {
        // Clear our action list of any other actions just in case.
        ClearAllActions();

        // Attempty to disintegrate the current target.
        //SendMessageToPC(oCaster, "Disintegrating, BUSY for 1 round");
        object oSphere = OBJECT_SELF;
        DoDisintegrate(oCaster, oIntruder, GetLocalInt(oCaster, "SP_SPHEREOFUD_DC"), GetLocalInt(oCaster, "SP_SPHEREOFUD_SR"));
        
        // Wait a round to clear our busy state which will keep our attacks
        // to 1 per round.
        DelayCommand(RoundsToSeconds(1), SetBusy(FALSE));
    }
}