Hit_MeatBones.c

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class Hit_MeatBones : EffBulletImpactBase
{
    float m_ScalingByDistance;
    
    void Hit_MeatBones()
    {
        SetEnterParticle(ParticleList.IMPACT_MEATBONES_ENTER);
        SetExitParticle(ParticleList.IMPACT_MEATBONES_EXIT);
        SetRicochetParticle(ParticleList.IMPACT_MEATBONES_RICOCHET);
        
        m_AngledEnter = 10;
        m_EnterSplashCoef = 0.002;
        m_ExitSplashCoef = 0.006;
        m_ScalingByDistance = 0.05;
        
        MIN_SCALING_PARAM = 0.2;
    }
    
    override float CalculateStoppingForce(float in_speedf, float out_speedf, string ammoType, float weight)
    {
        if ( m_ImpactType == ImpactTypes.MELEE )
        {
            return 400;
        }
        
        float projectile_weight_coef = weight / DEFAULT_PROJECTILE_WEIGHT;
        
        float stopping_force = in_speedf * projectile_weight_coef;
        
        if (m_DirectHit)
        {
            /*
            // TO DO: Doesn't work because IsAlive() is false, even when it shouldn't be.
            if ( m_DirectHit.IsMan()  &&  m_componentIndex == SURVIVOR_HEAD  &&  m_DirectHit.IsAlive() ) // Is the victim a survivor?
            {
                stopping_force = stopping_force * 2;
            }
            */
            
            /*
            // TO DO: Doesn't work. Need to recognize a zombie somehow
            else if ( m_DirectHit.IsInherited(DayZCreatureAIType)  &&  m_componentIndex == INFECTED_HEAD ) // Is the victim a survivor that's hit in the head?
            {
                stopping_force = stopping_force * 2;
            }*/
        }
        
        return stopping_force;
    }
 
    override void Event_OnStarted()
    {
        super.Event_OnStarted();
        
        if (m_ImpactType != ImpactTypes.MELEE)
        {
            vector in_speed = m_InSpeed * (-1); // Compiler demands to have this variable
            
            BloodSplatGround( GetPosition(), in_speed , 0.5 );
            
            if (m_OutSpeed.Length() > 0)
            {
                BloodSplatGround( m_ExitPos, m_OutSpeed, 0.8  );
            }
        }
    }
    
    void BloodSplatGround( vector start_pos, vector speed_vector, float decay_coef )
    {
        vector pos = start_pos;
        float power = m_StoppingForce;
        float upscale = 1;
        float rnd_offset = 0.5;
        float rnd_offset_2 = rnd_offset * 0.5;
        
        while (power > 200)
        {
            pos = pos + ( speed_vector * 0.001 );
            pos = pos + Vector( rnd_offset_2 - Math.RandomFloat( 0, rnd_offset ), 0, rnd_offset_2 - Math.RandomFloat( 0, rnd_offset ) );
            pos[1] = GetGame().SurfaceY(pos[0], pos[2]);
            
            EffectParticle eff = new BloodSplatter();
            eff.SetAutodestroy(true);
            SEffectManager.PlayInWorld(eff, pos);
            
            Particle blood = eff.GetParticle(); // TO DO: Handle particle changes inside the Effect instance itself! Not here!
 
            vector ori = GetGame().GetSurfaceOrientation(pos[0], pos[2]);
                        
            blood.SetOrientation(ori);
            blood.ScaleParticleParam(EmitorParam.SIZE, upscale);
            
            Particle blood_chunks = ParticleManager.GetInstance().PlayInWorld(ParticleList.BLOOD_SURFACE_CHUNKS, pos);
            blood_chunks.SetOrientation(ori);
            
            power = power * decay_coef;
            upscale = upscale + Math.RandomFloat(0.1, 1);           
            
            BloodSplatWall();
        }
    }
    
    void BloodSplatWall()
    {
        // Commented out due to age rating process :(
        
        /*
        if (m_OutSpeed.Length() > 0)
        {
            Object projected_surface;
            vector hit_pos;
            vector hit_normal;
            float hit_fraction; 
            DayZPhysics.RayCastBullet(m_ExitPos, m_ExitPos + m_OutSpeed, PhxInteractionLayers.BUILDING, m_Object, projected_surface, hit_pos, hit_normal, hit_fraction);
            
            hit_normal = hit_normal.VectorToAngles();
            hit_normal[1] = hit_normal[1] + 90;
            
            EffectParticle eff = new BloodSplatter();
            eff.SetAutodestroy(true);
            SEffectManager.PlayInWorld(eff, hit_pos);
            Particle blood = eff.GetParticle();
            blood.SetOrientation(hit_normal);
        }
        */
    }
    
    override void OnEnterCalculations( Particle p )
    {
        // Calculate particle's size based on bullet's speed
        float velocity_min = MIN_SCALING_PARAM + (m_StoppingForce * m_EnterSplashCoef);
        float velocity_max = MIN_SCALING_PARAM + (m_StoppingForce * m_EnterSplashCoef);
        float size = MIN_SCALING_PARAM + ( m_StoppingForce * m_EnterSplashCoef);
        float birth_rate = MIN_SCALING_PARAM + (m_StoppingForce * m_EnterSplashCoef/2);
        
        if ( m_AmmoType == "Bullet_12GaugePellets" )
        {
            birth_rate *= 0.5;
            velocity_min *= 2;
            velocity_max *= 2;
        }
        
        // Additional size increase by distance from camera
        vector camera_pos = GetGame().GetCurrentCameraPosition();
        float distance = vector.Distance(camera_pos, m_Pos);
        float scaling_by_distance = (distance*1.2) * m_ScalingByDistance;
        
        // Now scale down the above size increase by player's zoom-in value
        float current_FOV = Camera.GetCurrentFOV();
        float config_FOV = GetDayZGame().GetUserFOVFromConfig();
        float FOV_scale = current_FOV / config_FOV;
        scaling_by_distance = scaling_by_distance * FOV_scale;
 
        if (scaling_by_distance > 5)
            scaling_by_distance = 5;
        
        size = size + scaling_by_distance;
        velocity_min = velocity_min + scaling_by_distance;
        velocity_max = velocity_max + scaling_by_distance;
        
        if (velocity_min < MIN_SCALING_PARAM)
            velocity_min = MIN_SCALING_PARAM;
        
        if (velocity_max < MIN_SCALING_PARAM * 2)
            velocity_max = MIN_SCALING_PARAM * 2;
        
        if (size < MIN_SCALING_PARAM)
            size = MIN_SCALING_PARAM;
        
        if (birth_rate < MIN_SCALING_PARAM)
            birth_rate = MIN_SCALING_PARAM;
        
        p.ScaleParticleParam(EmitorParam.VELOCITY, velocity_min);
        p.ScaleParticleParam(EmitorParam.VELOCITY_RND, velocity_max);
        p.ScaleParticleParam(EmitorParam.SIZE, size);
        p.ScaleParticleParam(EmitorParam.BIRTH_RATE, birth_rate);
    }
    
    override void OnExitCalculations(Particle p, float outSpeedf)
    {
        float velocity_rnd = outSpeedf * m_ExitSplashCoef;
        float birth_rate_rnd_def = outSpeedf * m_ExitSplashCoef;
        float size = outSpeedf * m_ExitSplashCoef;
        
        if (velocity_rnd < MIN_SCALING_PARAM)
            velocity_rnd = MIN_SCALING_PARAM;
        
        if (size < MIN_SCALING_PARAM)
            size = MIN_SCALING_PARAM;
        
        if (size > 1)
            size = 1;
        
        if (birth_rate_rnd_def < MIN_SCALING_PARAM)
            birth_rate_rnd_def = MIN_SCALING_PARAM;
        
        p.ScaleParticleParam(EmitorParam.VELOCITY_RND, velocity_rnd);
        p.ScaleParticleParam(EmitorParam.BIRTH_RATE, birth_rate_rnd_def);
        p.ScaleParticleParam(EmitorParam.SIZE, size);
    }
}