ImpactEffects.c

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enum ImpactTypes
{
    UNKNOWN;
    STOP;
    PENETRATE;
    RICOCHET;
    MELEE;
}
 
class ImpactEffectsData
{
    Object      m_DirectHit;
    int         m_ImpactType;
    int         m_ComponentIndex;
    bool        m_IsDeflected;
    bool        m_IsWater;
    string      m_Surface;
    string      m_AmmoType;
    vector      m_InSpeed;
    vector      m_OutSpeed;
    vector      m_Position;
    vector      m_SurfaceNormal;
    vector      m_ExitPosition;
 
 
}
 
class ImpactMaterials
{
    ref static map<string, typename>    m_ImpactEffect;
    static int                          m_LastRegisteredMaterial = 0;
    
    ref static map<string, int>         m_IgnoredAmmo;
    static int                          m_LastRegisteredIgnoredAmmo = 0;
    
    static int PLASTIC                      = RegisterSurface("Hit_Plastic");
    static int SAND                         = RegisterSurface("Hit_Sand");
    static int TEXTILE                      = RegisterSurface("Hit_Textile");
    static int CONCRETE                     = RegisterSurface("Hit_Concrete");
    static int GRAVEL                       = RegisterSurface("Hit_Gravel");
    static int DIRT                         = RegisterSurface("Hit_Dirt");
    static int FOLIAGE                      = RegisterSurface("Hit_Foliage");
    static int GRASS                        = RegisterSurface("Hit_Grass");
    static int WOOD                         = RegisterSurface("Hit_Wood");
    static int METAL                        = RegisterSurface("Hit_Metal");
    static int GLASS                        = RegisterSurface("Hit_Glass");
    static int GLASS_THIN                   = RegisterSurface("Hit_Glass_Thin");
    static int WATER                        = RegisterSurface("Hit_Water");
    static int RUBBER                       = RegisterSurface("Hit_Rubber");
    static int PLASTER                      = RegisterSurface("Hit_Plaster");
    static int MEATBONES                    = RegisterSurface("Hit_MeatBones");
    static int MEATBONES_SHOVEL             = RegisterSurface("Hit_MeatBones_MeleeShovel");
    static int MEATBONES_PIPEWRENCH         = RegisterSurface("Hit_MeatBones_MeleePipeWrench");
    static int MEATBONES_WRENCH             = RegisterSurface("Hit_MeatBones_MeleeWrench");
    static int MEATBONES_FIST               = RegisterSurface("Hit_MeatBones_MeleeFist");
    static int UNDEFINED                    = RegisterSurface("Hit_Undefined");
    static int ERROR_NO_MATERIAL            = RegisterSurface("Hit_ErrorNoMaterial");
    
    static int FIST                         = RegisterIgnoredAmmo("MeleeFist");
    static int FIST_HEAVY                   = RegisterIgnoredAmmo("MeleeFist_Heavy");
    static int SOFT                         = RegisterIgnoredAmmo("MeleeSoft");
    static int SOFT_HEAVY                   = RegisterIgnoredAmmo("MeleeSoft_Heavy");
    static int DUMMY                        = RegisterIgnoredAmmo("Dummy_Light");
    static int DUMMY_HEAVY                  = RegisterIgnoredAmmo("Dummy_Heavy");
    
    static int RegisterSurface(string surface)
    {
        if (!m_ImpactEffect)
            m_ImpactEffect = new map<string, typename>;
        
        m_ImpactEffect.Insert(surface, surface.ToType());
         
        return ++m_LastRegisteredMaterial;
    }
    
    static bool UnregisterSurface(string surface)
    {
        if (m_ImpactEffect)
        {
            m_ImpactEffect.Remove(surface);
            return !m_ImpactEffect.Contains(surface);
        }
        
        return false;
    }
    
    static int RegisterIgnoredAmmo(string ammo)
    {
        if (!m_IgnoredAmmo)
            m_IgnoredAmmo = new map<string, int>;
        
        ++m_LastRegisteredIgnoredAmmo;
        
        m_IgnoredAmmo.Insert(ammo, m_LastRegisteredIgnoredAmmo);
         
        return m_LastRegisteredIgnoredAmmo;
    }
    
    static bool UnregisterIgnoredAmmo(string ammo)
    {
        if (m_IgnoredAmmo)
        {
            m_IgnoredAmmo.Remove(ammo);
            return !m_IgnoredAmmo.Contains(ammo);
        }
        
        return false;
    }
    
    static typename GetImpactEffect(string surface, string ammoType)
    {
        string key = string.Format("%1_%2", surface, ammoType);
        
        typename eff_type = m_ImpactEffect[key];
        
        if (eff_type)
            return eff_type;
        else
            return m_ImpactEffect[surface];
    }
    
    static void EvaluateImpactEffectEx(ImpactEffectsData pData)
    {
        EvaluateImpactEffect(pData.m_DirectHit, pData.m_ComponentIndex, pData.m_Surface, pData.m_Position, pData.m_ImpactType, pData.m_SurfaceNormal, pData.m_ExitPosition, pData.m_InSpeed, pData.m_OutSpeed, pData.m_IsDeflected, pData.m_AmmoType, pData.m_IsWater);
    }
    
    static void EvaluateImpactEffect(Object directHit, int componentIndex, string surface, vector pos, int impact_type, vector surfNormal, vector exitPos, vector inSpeed, vector outSpeed, bool deflected, string ammoType, bool isWater)
    {
        // No impact effects wanted for this ammo
        if (m_IgnoredAmmo.Contains(ammoType))
            return;
        
        if (impact_type == ImpactTypes.UNKNOWN)
            impact_type = ImpactTypes.STOP;
        
        if (deflected)
            impact_type = ImpactTypes.RICOCHET;
        else if (outSpeed)
            impact_type = ImpactTypes.PENETRATE;
        
        if (isWater)
            surface = "Hit_Water";
        
        EffBulletImpactBase eff = EffBulletImpactBase.Cast(GetImpactEffect(surface, ammoType).Spawn());
        
        if ( !eff && surface == "" ) // handle undefined surface
        {
            eff = EffBulletImpactBase.Cast( surface.ToType().Spawn() );
            
            if (eff)
            {
                RegisterSurface(surface);
                ErrorEx(string.Format("Unregistered surface for bullet impact effect (%1). Register this surface in ImpactMaterials (Script) for better performance.", surface), ErrorExSeverity.WARNING);
            }
            else
            {
                if (directHit)
                {
                    string object_type = directHit.GetType();
                    
                    if ( object_type == "" )
                        object_type = "OBJECT_WITHOUT_CONFIG_CLASS";
 
                    ErrorEx(string.Format("Object '%1' with model file: %2.p3d has undefined 'Hit_...' material! Cannot play impact effect.", object_type, directHit.GetModelName()));
                    eff = EffBulletImpactBase.Cast(GetImpactEffect("Hit_ErrorNoMaterial", ammoType).Spawn());
                }
            }
        }
        
        if ( !eff && surface != "" )
        {
            ErrorEx(string.Format("Unregistered surface impact material <%1>! Register this surface in ImpactMaterials (Script).", surface));
            eff = EffBulletImpactBase.Cast(GetImpactEffect("Hit_Undefined", ammoType).Spawn());
        }
        
        if (eff)
        {
            eff.EvaluateEffect(directHit, componentIndex, pos, impact_type, surfNormal, exitPos, inSpeed, outSpeed, ammoType);
            eff.SetAutodestroy(true);
            SEffectManager.PlayInWorld(eff, pos);
        }
    }
}