AaronCameron.net

Not Left, nor right. Just correct.

• 
• 
• 
• 
• 

Not a Member? - Login or Create an Account

Wednesday the 23rd of May 2012 @ 09:46am

Front Page Journal Projects Your Profile About

LibN2L N2L Home Older News Downloads Documentation (n2l5) Class Hierarchy Compound List File List n2l:: Members Functions Whole n2l:: Ref Documentation (libN2L-4) Class Hierarchy Compound List File List n2l:: Members Functions Whole n2l:: Ref Bugtracker Project Page Report a Bug Bug List Related Things Life 2130 Devel Game Journal

LibN2L-4 Library Code Reference Classes Compounds Files Members Method Index Full Reference cGuiModelView.cpp Go to the documentation of this file. /************************************************************************ Nova-2 Library (libN2L, or simply n2l) Game development C++ Library Copyright (C) 2003 Aaron Cameron This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA A copy of the GNU Lesser General Public License has been provided with this library in the file 'COPYING'. Contact information for the author of this library has been provided with this library in the file 'AUTHOR'. ************************************************************************/ #include "gui/cGuiModelView.h" #include "n2l/dynVars.h" #include "n2l/resourceManagement.h" #include "n2l/materials.h" #include "n2l/renderObjects.h" #include "n2l/renderTools.h" #include "n2l/video.h" #include "gui/cGuiFill.h" /******************************************************************************/ namespace n2l { /**************************************************************************/ cGuiModelView::cGuiModelView() { init(); } /**************************************************************************/ cGuiModelView::~cGuiModelView() { init(); } /**************************************************************************/ cGuiModelView::cGuiModelView( const cVfsNodeInterface & iNode ) { init(); load( iNode ); } /**************************************************************************/ cGuiModelView::cGuiModelView( const cDynVar & iDefinition ) { init(); load( iDefinition ); } /**************************************************************************/ void cGuiModelView::load( const cVfsNodeInterface &iNode ) { cDynVar def; validateAndDecode( def, iNode, "n2l::cGuiModelView" ); load( def ); } /**************************************************************************/ void cGuiModelView::load( const cDynVar &iDef ) { // Load parent properties cGuiElement::load( iDef ); if (iDef.keyExists("fill")) { const cDynVar &Tmp = iDef["fill"]; if (Tmp.isArray()) mFill = new cGuiFill( Tmp ); else mFill = new cGuiFill( *cResourceManager::get<cGuiFill>( Tmp ) ); } if (iDef["model"]) { if (iDef["model"].isArray()) mesh( new cRVisualTriMesh(iDef["model"]) ); else mesh( cResourceManager::get<cRVisualTriMesh>(iDef["model"]) ); } if (iDef["texture"]) mTexture = cResourceManager::get<cGLTexture>(iDef["texture"]); if (iDef["modelTrans"].isArray()) for ( tSint i = 0; i!=16; ++i ) mMeshTrans[i] = iDef["modelTrans"][i]; mNeedsUpdate = true; } /**************************************************************************/ void cGuiModelView::mesh( const cAutoPtr<const cRVisualTriMesh> &iMesh ) { mMesh = iMesh; if (mMesh.isSet()) { mMeshDim = mMesh->dimensions(); if (mCamMode==CameraMode_Auto) { const tFloat Radius = mMesh->boundingRadius(); const tFloat FovY = 50.0f; const tFloat Near = 1.0f; mPerProj = new cRPerspectiveProjection( FovY, 1.0f, Near,1000.0f ); // Find the closest visible point on the intersection of // the near and top clipping planes tVector3f p( 0.0f, 2.14f, 1.0f ); // Set the distance between the object location and point p // to the bounding radius. tVector3f o( 0.0f, 0.0f, /* z */ 0.0f ); // So o-p == Radius, then solve for z // Radius = sqrt( (0-0)^2 + (p.y-0)^2 + (z-1)^2 ) // Radius^2 = z^2 + 2z + 1 + 4.58 // 0 = z^2 + 2z + p.y^2-Radius^2 tFloat c = (p.y()*p.y())-(Radius*Radius); // z^2 - 2z + c // z = ( 2+sqrt(4 - 4c) )/2 // Finally, reverse for the camera o.z() = -1.f * (2.0f+sqrt(4.0f-4.0f*c)); mCamera->set( o, tVector3f(0.0f,0.0f,1.0f), tVector3f(0.0f,-1.0f,0.0f) ); } } mNeedsUpdate = true; } /**************************************************************************/ void cGuiModelView::texture( const cAutoPtr<const cGLTexture> &iTexture ) { mTexture = iTexture; mNeedsUpdate = true; } /**************************************************************************/ void cGuiModelView::meshTrans( const tMatrix44f &iTrans ) { mMeshTrans = iTrans; mNeedsUpdate = true; } /**************************************************************************/ void cGuiModelView::update( const tUint iTimePassed ) { cGuiElement::update( iTimePassed ); if (!mMesh.isSet()) return; if (mRender.isSet() && mCamVersion==mCamera->version() && mNeedsUpdate==false) { return; } glPushAttrib( GL_ALL_ATTRIB_BITS ); glViewport( 0,0, 512,512 ); glClearColor( 0.0f, 0.0f, 0.0f, 0.0f ); glClearDepth( 1.0f ); glDepthFunc( GL_LESS ); glEnable( GL_DEPTH_TEST ); glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glCullFace( GL_BACK ); glEnable( GL_CULL_FACE ); glEnable( GL_TEXTURE_2D ); glMatrixMode( GL_PROJECTION ); glPushMatrix(); glLoadIdentity(); mPerProj->render(); glMatrixMode( GL_MODELVIEW ); glPushMatrix(); glLoadIdentity(); mCamera->render(); cColour( 0.2f, 0.2f, 0.2f, 1.0f ).glLightfv( GL_LIGHT0, GL_AMBIENT ); cColour( 1.0f, 1.0f, 1.0f, 1.0f ).glLightfv( GL_LIGHT0, GL_DIFFUSE ); cColour( 1.0f, 1.0f, 1.0f, 1.0f ).glLightfv( GL_LIGHT0, GL_SPECULAR ); cColour( 0.0f, 20.0f, -1000.0f, 0.0f ).glLightfv( GL_LIGHT0, GL_POSITION ); glEnable( GL_LIGHTING ); glEnable( GL_LIGHT0 ); glMultMatrixf( mMeshTrans.data() ); mMesh->render( mTexture, R_Normal ); // R_ShowNormals | R_FaceLighting glPopMatrix(); glMatrixMode( GL_PROJECTION ); glPopMatrix(); if (!mRender.isSet()) mRender = new cGLTexture( GL_RGBA, tVector2u(512,512) ); mRender->bindTexture2D(); glReadBuffer( GL_BACK ); glCopyTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, 0,0,512,512, 0 ); dynamic_cast<cOpenGLDisplay*>(cOpenGLDisplay::currentDisplay())-> resetViewport(); glPopAttrib(); mNeedsUpdate = false; mCamVersion = mCamera->version(); } /**************************************************************************/ void cGuiModelView::draw() const { if (!mRender.isSet()) return; mFill->texture( mRender ); // I don't want to think about why right now. // mFill->draw( pos()+tVector2f(0.0f,size().y()), // size()*tVector2f(1.0f,-1.0f) ); mFill->draw( pos(), size() ); } /**************************************************************************/ void cGuiModelView::prop( const tString &iName, const cDynVar &iVal, const tString &iInnerKey ) { if (iName == "fill") { if (iInnerKey.empty()) { if (iVal.isArray()) mFill = new cGuiFill( iVal ); else mFill = new cGuiFill( *cResourceManager::get<cGuiFill>(iVal) ); } else mFill->prop( iInnerKey, iVal ); } else cGuiElement::prop( iName, iVal ); } /**************************************************************************/ const cDynVar cGuiModelView::prop( const tString &iName, const tString &iInnerKey ) const { cDynVar rVal; if (iName == "fill" && !iInnerKey.empty()) return mFill->prop( iInnerKey ); return cGuiElement::prop( iName ); } /**************************************************************************/ const cAutoPtr<cGuiElement> cGuiModelView::clone() const { cAutoPtr<cGuiElement> newElement( new cGuiModelView ); cloneInto( newElement ); return newElement; } /**************************************************************************/ void cGuiModelView::cloneInto( const cAutoPtr<cGuiModelView> &i_ioElement ) const { // Parent Properties first cGuiElement::cloneInto( i_ioElement ); // Now our properties. i_ioElement->mMeshTrans = mMeshTrans; i_ioElement->mMeshDim = mMeshDim; i_ioElement->mTexture = mTexture; i_ioElement->mPerProj = mPerProj->clone(); i_ioElement->mCamera = new cRFreeCamera( *mCamera ); i_ioElement->mNeedsUpdate = true; i_ioElement->mFill = new cGuiFill( *mFill ); i_ioElement->mCamMode = mCamMode; i_ioElement->mesh( mMesh ); } /**************************************************************************/ void cGuiModelView::init() { mPerProj = new cRPerspectiveProjection( 50.0, 1.0, 1.0, 1000.0 ); mCamera = new cRFreeCamera( tVector3f(0.0f,0.0f,-50.0f), tVector3f(0.0f,0.0f,1.0f), tVector3f(0.0f,-1.0f,0.0f) ); mCamVersion = 0; mMeshTrans.identity(); mNeedsUpdate = false; mCamMode = CameraMode_Auto; mFill = new cGuiFill; } /**************************************************************************/ const cAutoPtr<cGuiElement> cGuiModelView::loadNew( const cDynVar &iDef ) { return new cGuiModelView(iDef); } } // namespace n2l

©2012 Aaron Cameron