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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#ifndef plProxyGen_inc
#define plProxyGen_inc
#include "../pnKeyedObject/hsKeyedObject.h"
#include "hsColorRGBA.h"
#include "hsTemplates.h"
class plDrawableSpans;
class hsGMaterial;
struct hsMatrix44;
//
// Making your own ProxyGen suitable for visualizing class YourObject.
//
// Derive YourObjectProxy() from ProxyGen.
// YourObjectProxy() should set fProxyMsgType and the colors fAmbient,fColor, either
// in the constructor or in Init().
// Implement IGetNode() (see below).
// Implement ICreateProxy() (see below).
// Implement a CreateProxy() member to YourObject (see below).
// Add DrawableType kYourObjectProxy to plDrawable.h
// Add console commands under Graphics.Show.YourObjectProxy.
//
// See plLightSpace and plLightProxy for examples.
//
// More details.
// ============
// To make your own ProxyGen, you should subclass plProxyGen and override Init()
// because you'll probably want to keep a pointer to your owner (of type only you
// need to understand).
//
// The IGetNode() function lets your owner specify which plSceneNode to place the
// drawable in. That will normally just return your owner's GetSceneNode() call.
//
// ICreateProxy() let's your ProxyGen do any tweaking before calling CreateProxy()
// on your object. Your ProxyGen::ICreateProxy() could just do the work itself, but
// normally doesn't have enough protected information to really do the job.
//
// Typically your object's CreateProxy() function will just translate its internal
// data to a form suitable for the plDrawableGenerator suite of helper functions
// and return the result of a call into one of them.
//
class plProxyGen : public hsKeyedObject
{
protected:
hsColorRGBA fAmbient; // opacity in ambient.a
hsColorRGBA fColor;
plDrawableSpans* fProxyDraw;
hsGMaterial* fProxyMat;
UInt32 fProxyMsgType;
hsTArray<UInt32> fProxyIndex;
// These must be implemented by the specific type, so we know what to draw.
virtual plDrawableSpans* ICreateProxy(hsGMaterial* mat, hsTArray<UInt32>& idx, plDrawableSpans* addTo=nil) = 0; // called by IGenerate
virtual plKey IGetNode() const = 0;
// Derived type should set fProxyMsgType as one of plProxyDrawMsg::types
UInt32 IGetProxyMsgType() const { return fProxyMsgType; }
// These are all fine by default.
UInt32 IGetProxyIndex() const;
UInt32 IGetDrawableType() const;
virtual hsGMaterial* IMakeProxyMaterial() const;
virtual hsGMaterial* IGetProxyMaterial() const; // will make material if needed.
hsGMaterial* IFindProxyMaterial() const;
virtual void IGenerateProxy();
virtual void IApplyProxy(UInt32 drawIdx) const; // called by IGenerate
virtual void IRemoveProxy(UInt32 drawIdx) const;
virtual void IDestroyProxy();
public:
plProxyGen(const hsColorRGBA& amb, const hsColorRGBA& dif, hsScalar opac);
virtual ~plProxyGen();
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual void SetDisable(hsBool on);
virtual void Init(const hsKeyedObject* owner);
virtual hsBool MsgReceive(plMessage* msg);
};
#endif // plProxyGen_inc