FlashGrenade.c

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class FlashGrenade extends Grenade_Base
{
    const float FX_RANGE_MAX_MULT = 1.0;
    
    override void OnExplosionEffects(Object source, Object directHit, int componentIndex, string surface, vector pos, vector surfNormal, float energyFactor, float explosionFactor, bool isWater, string ammoType)
    {
        super.OnExplosionEffects(source, directHit, componentIndex, surface, pos, surfNormal, energyFactor, explosionFactor, isWater, ammoType);
 
        PlayerBase player = PlayerBase.Cast(GetGame().GetPlayer());
 
        if (player)
        {
            vector headPos          = player.GetDamageZonePos("Head"); // animated position in the middle of the zone
            float ammoRangeKill     = GetGame().ConfigGetFloat(string.Format("CfgAmmo %1 indirectHitRange", ammoType));
            float ammoRangeMaxMult  = 4.0;
            
            string indirectHitRangeMultiplier = string.Format("CfgAmmo %1 indirectHitRangeMultiplier", ammoType);
            if (GetGame().ConfigIsExisting(indirectHitRangeMultiplier))
            {
                ammoRangeMaxMult = Math.Clamp(GetGame().ConfigGetFloat(indirectHitRangeMultiplier), 1.0, float.MAX);
            }
 
            float ammoRangeMax = ammoRangeKill * ammoRangeMaxMult;
            ammoRangeMax = Math.Clamp(ammoRangeMax * FX_RANGE_MAX_MULT, ammoRangeKill, ammoRangeMax);
            
            float dist          = vector.Distance(headPos, pos);
            float distSq        = vector.DistanceSq(headPos, pos);
            float radiusMaxSq = Math.SqrFloat(ammoRangeMax);
            
            if (distSq <= radiusMaxSq)
            {
                // ignore collisions with parent if fireplace
                InventoryItem invItem = InventoryItem.Cast(source);
                EntityAI parent = invItem.GetHierarchyParent();
                array<Object> excluded = new array<Object>;
                
                if (!parent || !parent.IsFireplace())
                    parent = null;
                else if (parent)
                    excluded.Insert(parent);
                
                array<ref RaycastRVResult> results = new array<ref RaycastRVResult>;
                excluded.Insert(this); //Ignore self for visibility check
                
                //There shouldn't be cases justifying we go further than first entry (if in fireplace, self does not impact)
                RaycastRVParams rayParams   = new RaycastRVParams(pos, headPos, excluded[0]);
                rayParams.flags             = CollisionFlags.ALLOBJECTS;
                DayZPhysics.RaycastRVProxy(rayParams, results, excluded);
 
                array<Object> hitObjects = new array<Object>;
                for (int i = 0; i < results.Count(); i++)
                {
                    if (results[i].obj && !results[i].obj.IsInherited(ItemBase))
                    {
                        hitObjects.Insert(results[i].obj);
                    }
                }
 
                //If player is not first index, object is between player and grenade
                if (hitObjects.Count() && PlayerBase.Cast(hitObjects[0]))
                {
                    float effectCoef;
                    if (ammoRangeMax == ammoRangeKill)
                    {
                        effectCoef = 1.0; //edge case, landed right on the edge
                    }
                    effectCoef = 1 - ((dist - ammoRangeKill) / (ammoRangeMax - ammoRangeKill));
                    effectCoef = Math.Clamp(effectCoef, 0.1, 100.0);
 
                    player.OnPlayerReceiveFlashbangHitStart(MiscGameplayFunctions.IsPlayerOrientedTowardPos(player, pos, 60));
                    player.GetFlashbangEffect().SetupFlashbangValues(effectCoef, effectCoef, effectCoef);
                }
            }
        }
    }
 
    void FlashGrenade()
    {
        SetAmmoType("FlashGrenade_Ammo");
        SetFuseDelay(2);
        SetGrenadeType(EGrenadeType.ILLUMINATING);
        SetParticleExplosion(ParticleList.GRENADE_M84);
    }
    
    protected override void CreateLight()
    {
        m_Light = ExplosiveLight.Cast(ScriptedLightBase.CreateLight(FlashGrenadeLight, GetPosition()));
    }
 
    void ~FlashGrenade() {}
}