scriptedentities.c

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#ifdef DEVELOPER
const bool DebugTrigger = false;
#else
const bool DebugTrigger = false;
#endif
 
class TriggerInsider
{
    ref OLinkT insider;
    int timeStamp;
    void TriggerInsider(Object obj)
    {
        insider = new OLinkT(obj);
    }
 
    Object GetObject()
    {
        return insider.Ptr();
    }
};
 
class Trigger extends ScriptedEntity
{
    const int TIMEOUT = 1000;
    ref array<ref TriggerInsider> m_insiders;
    Shape shape;
 
    protected void Cleanup()
    {
        if(shape)
        {
            shape.Destroy();
            shape = NULL;
        }           
    }
 
    void OnEnter(Object obj)
    {
        if(DebugTrigger)
        {       
            Print("entered");
            Print(obj);
        }
    }
 
    void OnLeave(Object obj)
    {
        if(DebugTrigger)
        {       
            Print("left");
            Print(obj);
        }
    }
    
    protected void UpdateInsiders(int timeout)
    {
        int timeStamp = g_Game.GetTime();
 
        for(int n = 0; n < m_insiders.Count(); )
        {
            TriggerInsider ins = m_insiders.Get(n);
            if(ins.insider == NULL)
            {
                //object has been deleted. Remove it
                m_insiders.Remove(n);
                continue;
            }
            
            int timeDiff = timeStamp - ins.timeStamp;
            if(timeDiff > timeout)
            {
                //object left. Remove it
                OnLeave(ins.insider.Ptr());
                m_insiders.Remove(n);
                continue;
            }
             
            n++;            
        }       
    }
 
    protected void AddInsider(Object obj)
    {
        TriggerInsider ins;
        for(int n = 0; n < m_insiders.Count(); n++)
        {
            ins = m_insiders.Get(n);
            //already in?
            if(ins.insider.Ptr() == obj)
            {
                //just update timestamp
                ins.timeStamp = g_Game.GetTime();
                return;
            }
        }
        ins = new TriggerInsider(obj);
        ins.timeStamp = g_Game.GetTime();
        m_insiders.Insert(ins);
        OnEnter(obj);               
    }
    
    override void EOnFrame(IEntity other, float timeSlice)
    {
        UpdateInsiders(TIMEOUT);
    }
    
    override void EOnTouch(IEntity other, int extra)
    {
        Object obj;
        if (Class.CastTo(obj, other))
            AddInsider(obj);
    }
 
    float GetRadius(vector min, vector max)
    {
        vector v;
        for(int n = 0; n < 3; n++)
        {
            float m1 = Math.AbsFloat(min[n]);
            float m2 = Math.AbsFloat(max[n]);
 
            if(m1 > m2)
                v[n] = m1;
            else
                v[n] = m2;          
        }
        
        return v.Length();          
    }
    
    void SetExtents(vector mins, vector maxs)
    {
        SetCollisionBox(mins, maxs);
 
        if(DebugTrigger)
        {
            vector mat[4];
            GetTransform(mat);
            if(shape)
            {
                shape.Destroy();
                shape = NULL;
            }
            
            shape = Shape.Create(ShapeType.BBOX, 0x1fff7f7f, ShapeFlags.TRANSP|ShapeFlags.NOZWRITE, mins, maxs);
            
            if (shape) // Hackfix! Function AddDShape must return Shape! That's why this condition is probably never passed!
            {
                shape.SetMatrix(mat);
            }
        }
    }
 
 
    override void EOnInit(IEntity other, int extra)
    {
        const vector mins = "-2 -4 -2";
        const vector maxs = "2 4 2";
        SetExtents(mins, maxs);
    }
 
    override void EEDelete(EntityAI parent)
    {
        super.EEDelete(parent);
        
        Cleanup();
    }
            
    private void Trigger()
    {
        m_insiders = new array<ref TriggerInsider>;
        SetEventMask(EntityEvent.FRAME|EntityEvent.INIT|EntityEvent.TOUCH);
        SetFlags(EntityFlags.TRIGGER, false);
    }
};
 
class ManTrigger extends Trigger
{
    override void OnEnter(Object obj)
    {
    }
 
    override void EOnTouch(IEntity other, int extra)
    {
        Object obj;
        if(Class.CastTo(obj, other))
        {
            if(obj.IsMan()) AddInsider(obj);
        }
    }
 
    array<ref TriggerInsider> GetInsiders()
    {
        return m_insiders;
    }
 
    override void EOnInit(IEntity other, int extra)
    {
        const vector mins = "-2 -2 -2";
        const vector maxs = "2 2 2";
        SetExtents(mins, maxs);
    }
    
};