effectmanager.c

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class SEffectManager
{
    protected static ref map<int, ref Effect> m_EffectsMap;
    protected static ref array<int> m_FreeEffectIDs;
    protected static int m_HighestFreeEffectID = 1;
    static const int INVALID_ID = 0;
    protected static bool m_IsCleanup;
    protected static bool m_IsInitialized;
    
    protected static ref map<string, ref SoundParams> m_ParamsMap;
    
    static ref ScriptInvoker Event_OnFrameUpdate;
    
    
    
    
    static int PlayInWorld(notnull Effect eff, vector pos)
    {
        // Stop the effect first, just in case
        eff.Stop();
        
        int id = EffectRegister(eff);
        
        eff.SetPosition( pos );
        eff.Start();    
        
        return id;
    }
    
    static int PlayOnObject(notnull Effect eff, Object obj, vector local_pos = "0 0 0", vector local_ori = "0 0 0", bool force_rotation_relative_to_world = false)
    {
        // Stop the effect first, just in case
        eff.Stop();
        
        int id = EffectRegister(eff);
        
        if (!obj)
        {
            ErrorEx("Parent object is null.", ErrorExSeverity.WARNING);
            eff.SetPosition(local_pos);
        }
        else
        {
            eff.SetPosition(obj.GetPosition());
        }
            
        eff.SetParent(obj);
        eff.SetLocalPosition(local_pos);
        eff.SetAttachedLocalOri(local_ori);
        
        if (force_rotation_relative_to_world)
        {
            EffectParticle eff_particle = EffectParticle.Cast(eff);
            
            if (eff_particle)
            {
                eff_particle.ForceParticleRotationRelativeToWorld(force_rotation_relative_to_world);
            }
        }
        
        eff.Start();
        
        return id;
    }
    
    static void Stop(int effect_id)
    {
        Effect eff = m_EffectsMap.Get(effect_id);
        
        if (eff)
        {
            eff.Stop();
        }
        else
        {
            ErrorEx(string.Format("Failed to stop Effect with ID %1. The ID is not registered in m_EffectsMap!", effect_id));
        }
    }
    
    
 
    
    
    static EffectSound CreateSound(string sound_set, vector position, float play_fade_in = 0, float stop_fade_out = 0, bool loop = false, bool enviroment = false)
    {
        EffectSound effect_sound = new EffectSound();
        effect_sound.SetSoundSet(sound_set);
        effect_sound.SetPosition(position);
        effect_sound.SetSoundFadeIn(play_fade_in);
        effect_sound.SetSoundFadeOut(stop_fade_out);
        effect_sound.SetSoundLoop(loop);
        effect_sound.SetEnviromentVariables(enviroment);
        
        EffectRegister( effect_sound );
        
        return effect_sound;
    }
    
    static EffectSound PlaySound(string sound_set, vector position, float play_fade_in = 0, float stop_fade_out = 0, bool loop = false)
    {
        EffectSound effect_sound = CreateSound(sound_set, position, play_fade_in, stop_fade_out, loop, false);
                
        effect_sound.SoundPlay();
        
        return effect_sound;
    }
    
    static EffectSound PlaySoundParams(notnull SoundParams params, vector position, float play_fade_in = 0, float stop_fade_out = 0, bool loop = false)
    {
        EffectSound effect_sound = CreateSound(params.GetName(), position, play_fade_in, stop_fade_out, loop, false);
 
        effect_sound.SoundPlayEx(params);
        
        return effect_sound;
    }
    
    static EffectSound PlaySoundCachedParams(string sound_set, vector position, float play_fade_in = 0, float stop_fade_out = 0, bool loop = false)
    {
        SoundParams params = GetCachedSoundParam(sound_set);
        
        EffectSound effect_sound = CreateSound(params.GetName(), position, play_fade_in, stop_fade_out, loop, false);
 
        effect_sound.SoundPlayEx(params);
        
        return effect_sound;
    }
    
    static EffectSound PlaySoundEnviroment(string sound_set, vector position, float play_fade_in = 0, float stop_fade_out = 0, bool loop = false)
    {
        EffectSound effect_sound = CreateSound(sound_set, position, play_fade_in, stop_fade_out, loop, true);
                
        effect_sound.SoundPlay();
        
        return effect_sound;
    }
    
    static EffectSound PlaySoundOnObject(string sound_set, Object parent_object, float play_fade_in = 0, float stop_fade_out = 0, bool loop = false)
    {
        EffectSound effect_sound = CreateSound(sound_set, parent_object.GetPosition(), play_fade_in, stop_fade_out, loop);
        
        effect_sound.SetParent( parent_object );
        effect_sound.SetLocalPosition( vector.Zero );
        effect_sound.SoundPlay();
        
        return effect_sound;
    }
    
    
    
    
    
    static void DestroyEffect(Effect effect)
    {
        if (effect)
        {
            if (effect.CanDestroy())
            {
                // Functionality already happens in dtor of Effect to be safe
                delete effect;
            }
            else
            {
                // Make it clean up itself when done
                effect.SetAutodestroy(true);
                effect.Stop();
            }
        }
    }
    
    static bool IsEffectExist( int effect_id )
    {
        if (!m_IsCleanup)
            return m_EffectsMap[effect_id] != null;
        else
            return false;
    }
            
    static Effect GetEffectByID(int effect_id)
    {
        if (!m_IsCleanup)
            return m_EffectsMap[effect_id];
        else
            return null;
    }
    
    static int EffectRegister(Effect effect)
    {
        if (effect.IsRegistered())
        {
            ErrorEx(string.Format("Attempted to register Effect '%1' which was already registered.", effect.GetDebugName()), ErrorExSeverity.INFO);         
            return effect.GetID();
        }
        
        int id;
        
        if (!m_IsCleanup)
        {
            id = GetFreeEffectID();
            m_EffectsMap.Insert(id, effect);
            effect.Event_OnRegistered(id);
        }
        else
            ErrorEx("Attempted to register Effect while SEffectManager is cleaning up, request ignored.", ErrorExSeverity.WARNING);
        
        return id;
    }
    
    static void EffectUnregister(int id)
    {
        if (m_IsCleanup)
            return; // No error needed, since it will have been unregistered anyways after cleanup is finished
        
        Effect effect;
        if ( m_EffectsMap.Find(id, effect) )
        {
            effect.Event_OnUnregistered();
            m_EffectsMap.Remove(id);
        }       
        
        if ( m_FreeEffectIDs.Find(id) == -1 )
        {
            m_FreeEffectIDs.Insert(id);
        }
    }
    
    static void EffectUnregisterEx(Effect effect)
    {
        EffectUnregister(effect.GetID());
    }
    
    protected static int GetFreeEffectID()
    {
        int return_id;
        
        if (m_FreeEffectIDs.Count() > 0)
        {
            return_id = m_FreeEffectIDs.Get(0);
            m_FreeEffectIDs.Remove(0);
        }
        else
        {
            return_id = m_HighestFreeEffectID;
            ++m_HighestFreeEffectID;
        }
        
        return return_id;       
    }
    
    
    
    
    
    static bool DestroySound(EffectSound sound_effect)
    {
        DestroyEffect(sound_effect);        
        return true;
    }
    
    static SoundParams GetCachedSoundParam(string soundset)
    {
        SoundParams params;
        if (!m_ParamsMap.Find(soundset, params))
        {
            params = new SoundParams(soundset);
            m_ParamsMap.Insert(soundset, params);
        }
        return params;
    }
    
    
    
    
    
    static void Event_OnSoundWaveEnded(EffectSound effect_sound)
    {
        
    }
    
    static void Event_OnFrameUpdate(float time_delta)
    {
        Event_OnFrameUpdate.Invoke(time_delta);
    }
    
    
    
    
    
    static void Init()
    {
        m_EffectsMap = new map<int, ref Effect>;
        m_FreeEffectIDs = new array<int>;
        m_ParamsMap = new map<string, ref SoundParams>;
        Event_OnFrameUpdate = new ScriptInvoker();
        
        m_IsInitialized = true;
    }
    
    static void Cleanup()
    {
        // Nothing to clean
        if (!m_IsInitialized)
            return;     
        
        m_IsCleanup = true;
        
        // There should not be anything in here on server
        if (GetGame() && GetGame().IsDedicatedServer())
        {
            if (m_ParamsMap.Count() > 0)
                ErrorEx(string.Format("SEffectManager containing SoundParams on server."), ErrorExSeverity.WARNING);
            
            if (m_EffectsMap.Count() > 0)
                ErrorEx(string.Format("SEffectManager containing Effect on server."), ErrorExSeverity.WARNING);
        }
        
        // These are intentionally cached, just clear them
        m_ParamsMap.Clear();
        
        // These might not be intentionally still here, so log how many there are
        #ifdef DEVELOPER
        Print("--- SEffectManager Cleanup dump - Begin ------------------------");
        Print(string.Format("Effect count: %1", m_EffectsMap.Count()));
        #endif
        
        // Best to call the unregister event before clearing the map
        // In case some ref is still being held elsewhere and will still be kept alive
        foreach (int id, Effect eff : m_EffectsMap)
        {
            eff.Event_OnUnregistered();
            #ifdef SFXM_DUMP
            Print(string.Format( "%1 :: %2 :: %3", eff, typename.EnumToString(EffectType, eff.GetEffectType()), eff.GetDebugName() ));
            #endif
        }
        
        #ifdef DEVELOPER
        Print("--- SEffectManager Cleanup dump - End --------------------------");
        #endif
        
        // Now we can clear it
        m_EffectsMap.Clear();
        
        // Reset the state
        m_HighestFreeEffectID = 1;      
        Event_OnFrameUpdate.Clear();
        m_IsCleanup = false;
    }
    
}