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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Renders a cone for spotlight entities. Only renders when the parent
// entity is selected.
//
//=============================================================================//
#include "stdafx.h"
#include "Box3D.h"
#include "fgdlib/HelperInfo.h"
#include "MapDefs.h" // dvs: For COORD_NOTINIT
#include "MapEntity.h"
#include "MapFrustum.h"
#include "Render3D.h"
#include "Material.h"
#include "materialsystem/imaterialsystem.h"
#include "TextureSystem.h"
#include "hammer.h"
// memdbgon must be the last include file in a .cpp file!!!
#include <tier0/memdbgon.h>
IMPLEMENT_MAPCLASS(CMapFrustum)
//-----------------------------------------------------------------------------
// Purpose: Factory function. Used for creating a CMapFrustum helper from a
// set of string parameters from the FGD file.
// Input : *pInfo - Pointer to helper info class which gives us information
// about how to create the helper.
// Output : Returns a pointer to the helper, NULL if an error occurs.
//-----------------------------------------------------------------------------
CMapClass *CMapFrustum::Create(CHelperInfo *pHelperInfo, CMapEntity *pParent) { CMapFrustum *new1 = new CMapFrustum; if( new1 != NULL ) { const char *pszKeyName; // The first parameter should be the fov key name.
pszKeyName = pHelperInfo->GetParameter(0); if ( pszKeyName ) V_strncpy( new1->m_szFOVKeyName, pszKeyName, sizeof( new1->m_szFOVKeyName ) ); // Second parameter should be the near plane name.
pszKeyName = pHelperInfo->GetParameter(1); if ( pszKeyName ) V_strncpy( new1->m_szNearPlaneKeyName, pszKeyName, sizeof( new1->m_szNearPlaneKeyName ) );
// Third parameter should be the far plane name.
pszKeyName = pHelperInfo->GetParameter(2); if ( pszKeyName ) V_strncpy( new1->m_szFarPlaneKeyName, pszKeyName, sizeof( new1->m_szFarPlaneKeyName ) );
pszKeyName = pHelperInfo->GetParameter(3); if (pszKeyName != NULL) { V_strncpy( new1->m_szColorKeyName, pszKeyName, sizeof( new1->m_szColorKeyName ) ); }
pszKeyName = pHelperInfo->GetParameter(4); if (pszKeyName != NULL) { new1->m_flPitchScale = Q_atof( pszKeyName ); } else { new1->m_flPitchScale = 1.0f; } } return new1; }
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CMapFrustum::CMapFrustum(void) { // Set default parameter names.
V_strncpy( m_szFOVKeyName, "_fov", sizeof( m_szFOVKeyName ) ); V_strncpy( m_szNearPlaneKeyName, "_NearPlane", sizeof( m_szNearPlaneKeyName ) ); V_strncpy( m_szFarPlaneKeyName, "_FarPlane", sizeof( m_szFarPlaneKeyName ) ); V_strncpy( m_szColorKeyName, "_light", sizeof( m_szColorKeyName ) );
m_flFOV = 90; m_flNearPlane = 10; m_flFarPlane = 200; m_flPitchScale = -1; }
//-----------------------------------------------------------------------------
// Purpose: Destructor. Deletes faces allocated by BuildCone.
//-----------------------------------------------------------------------------
CMapFrustum::~CMapFrustum(void) { for (int i = 0; i < m_Faces.Count(); i++) { CMapFace *pFace = m_Faces.Element(i); delete pFace; } }
CMapFace* CMapFrustum::CreateMapFace( const Vector &v1, const Vector &v2, const Vector &v3, const Vector &v4, float flAlpha ) { Assert( IsFinite(v1.x) && IsFinite(v1.y) && IsFinite(v1.z) );
Vector points[4] = {v1,v2,v3,v4}; CMapFace *pFace = new CMapFace; pFace->SetRenderColor( r, g, b ); pFace->SetRenderAlpha( flAlpha ); pFace->CreateFace( points, 4 ); pFace->RenderUnlit(true); return pFace; }
//-----------------------------------------------------------------------------
// Purpose: Builds the light cone faces in local space. Does NOT call CalcBounds,
// because that CalcBounds updates the parent, which causes problems
// in the undo system.
//-----------------------------------------------------------------------------
void CMapFrustum::BuildFrustumFaces(void) { //
// Delete the current face list.
//
for (int i = 0; i < m_Faces.Count(); i++) { CMapFace *pFace = m_Faces.Element(i); delete pFace; } m_Faces.RemoveAll();
// 6 total faces. 4 on the sides and 2 caps.
Vector vNearFace[4], vFarFace[4];
float flHalfFOV = m_flFOV / 2.0f; flHalfFOV = clamp( flHalfFOV, 0.01f, 89.0f ); float flScaleFactor = tan( DEG2RAD( flHalfFOV ) ); float flBaseAlpha = 180; vNearFace[0].Init( m_flNearPlane, -flScaleFactor*m_flNearPlane, -flScaleFactor*m_flNearPlane ); vNearFace[1].Init( m_flNearPlane, +flScaleFactor*m_flNearPlane, -flScaleFactor*m_flNearPlane ); vNearFace[2].Init( m_flNearPlane, +flScaleFactor*m_flNearPlane, +flScaleFactor*m_flNearPlane ); vNearFace[3].Init( m_flNearPlane, -flScaleFactor*m_flNearPlane, +flScaleFactor*m_flNearPlane ); vFarFace[0].Init( m_flFarPlane, -flScaleFactor*m_flFarPlane, -flScaleFactor*m_flFarPlane ); vFarFace[1].Init( m_flFarPlane, +flScaleFactor*m_flFarPlane, -flScaleFactor*m_flFarPlane ); vFarFace[2].Init( m_flFarPlane, +flScaleFactor*m_flFarPlane, +flScaleFactor*m_flFarPlane ); vFarFace[3].Init( m_flFarPlane, -flScaleFactor*m_flFarPlane, +flScaleFactor*m_flFarPlane );
// Build the near and far faces.
m_Faces.AddToTail( CreateMapFace( vNearFace[0], vNearFace[1], vNearFace[2], vNearFace[3], flBaseAlpha ) ); m_Faces.AddToTail( CreateMapFace( vFarFace[3], vFarFace[2], vFarFace[1], vFarFace[0], flBaseAlpha ) );
// Build the 4 cap faces.
for ( int i=0; i < 4; i++ ) { m_Faces.AddToTail( CreateMapFace( vNearFace[i], vFarFace[i], vFarFace[(i+1)%4], vNearFace[(i+1)%4], flBaseAlpha ) ); } // Also build some really translucent faces from the origin to the near plane.
float flOriginFacesAlpha = 40.0f; for ( int i=0; i < 4; i++ ) { m_Faces.AddToTail( CreateMapFace( Vector(0,0,0), vNearFace[i], vNearFace[(i+1)%4], Vector(0,0,0), flOriginFacesAlpha ) ); } }
//-----------------------------------------------------------------------------
// Purpose:
// Input : bFullUpdate -
//-----------------------------------------------------------------------------
void CMapFrustum::CalcBounds(BOOL bFullUpdate) { CMapClass::CalcBounds(bFullUpdate);
//
// HACK: Update our origin to stick to our parent.
//
if (m_pParent != NULL) { GetParent()->GetOrigin(m_Origin); }
//
// Pretend to be very small for the 2D view. Won't be necessary when 2D
// rendering is done in the map classes.
//
m_Render2DBox.ResetBounds(); m_Render2DBox.UpdateBounds(m_Origin);
SetCullBoxFromFaceList( &m_Faces ); }
//-----------------------------------------------------------------------------
// Purpose:
// Output : CMapClass
//-----------------------------------------------------------------------------
CMapClass *CMapFrustum::Copy(bool bUpdateDependencies) { CMapFrustum *pCopy = new CMapFrustum;
if (pCopy != NULL) { pCopy->CopyFrom(this, bUpdateDependencies); }
return(pCopy); }
//-----------------------------------------------------------------------------
// Purpose:
// Input : pObject -
// Output : CMapClass
//-----------------------------------------------------------------------------
CMapClass *CMapFrustum::CopyFrom(CMapClass *pObject, bool bUpdateDependencies) { Assert(pObject->IsMapClass(MAPCLASS_TYPE(CMapFrustum))); CMapFrustum *pFrom = (CMapFrustum *)pObject;
CMapClass::CopyFrom(pObject, bUpdateDependencies);
m_flFOV = pFrom->m_flFOV; m_flNearPlane = pFrom->m_flNearPlane; m_flFarPlane = pFrom->m_flFarPlane; m_Angles = pFrom->m_Angles; m_flPitchScale = pFrom->m_flPitchScale; V_strncpy( m_szFOVKeyName, pFrom->m_szFOVKeyName, sizeof( m_szFOVKeyName ) ); V_strncpy( m_szNearPlaneKeyName, pFrom->m_szNearPlaneKeyName, sizeof( m_szNearPlaneKeyName ) ); V_strncpy( m_szFarPlaneKeyName, pFrom->m_szFarPlaneKeyName, sizeof( m_szFarPlaneKeyName ) ); V_strncpy( m_szColorKeyName, pFrom->m_szColorKeyName, sizeof( m_szColorKeyName ) );
BuildFrustumFaces();
return(this); }
//-----------------------------------------------------------------------------
// Purpose: Notifies that this object's parent entity has had a key value change.
// Input : szKey - The key that changed.
// szValue - The new value of the key.
//-----------------------------------------------------------------------------
void CMapFrustum::OnParentKeyChanged(const char *szKey, const char *szValue) { bool bRebuild = true;
if (!stricmp(szKey, "angles")) { sscanf(szValue, "%f %f %f", &m_Angles[PITCH], &m_Angles[YAW], &m_Angles[ROLL]); } else if (!stricmp(szKey, m_szColorKeyName)) { int nRed; int nGreen; int nBlue; sscanf(szValue, "%d %d %d", &nRed, &nGreen, &nBlue);
r = nRed; g = nGreen; b = nBlue; } else if (!stricmp(szKey, m_szFOVKeyName)) { m_flFOV = atof(szValue); } else if (!stricmp(szKey, m_szNearPlaneKeyName)) { m_flNearPlane = atof(szValue); } else if (!stricmp(szKey, m_szFarPlaneKeyName)) { m_flFarPlane = atof(szValue); } else { bRebuild = false; }
if (bRebuild) { BuildFrustumFaces(); PostUpdate(Notify_Changed); } }
//-----------------------------------------------------------------------------
// Purpose: Called after the entire map has been loaded. This allows the object
// to perform any linking with other map objects or to do other operations
// that require all world objects to be present.
// Input : pWorld - The world that we are in.
//-----------------------------------------------------------------------------
void CMapFrustum::PostloadWorld(CMapWorld *pWorld) { CMapClass::PostloadWorld(pWorld);
BuildFrustumFaces(); CalcBounds(); }
//-----------------------------------------------------------------------------
// Purpose:
// Input : pRender -
//-----------------------------------------------------------------------------
void CMapFrustum::Render3D(CRender3D *pRender) { if (m_pParent->IsSelected()) { CMatRenderContextPtr pRenderContext( MaterialSystemInterface() ); pRenderContext->MatrixMode(MATERIAL_MODEL); pRenderContext->PushMatrix();
pRenderContext->Translate(m_Origin[0], m_Origin[1], m_Origin[2]);
QAngle Angles; GetAngles(Angles);
pRenderContext->Rotate(Angles[YAW], 0, 0, 1); pRenderContext->Rotate(m_flPitchScale * Angles[PITCH], 0, -1, 0); pRenderContext->Rotate(Angles[ROLL], 1, 0, 0);
if ( (pRender->GetCurrentRenderMode() != RENDER_MODE_LIGHT_PREVIEW2) && (pRender->GetCurrentRenderMode() != RENDER_MODE_LIGHT_PREVIEW_RAYTRACED) && (GetSelectionState() != SELECT_MODIFY ) ) { // Render the cone faces flatshaded.
pRender->PushRenderMode( RENDER_MODE_TRANSLUCENT_FLAT ); for (int i = 0; i < m_Faces.Count(); i++) { CMapFace *pFace = m_Faces.Element(i); pFace->Render3D(pRender); }
pRender->PopRenderMode(); }
//
// Render the cone faces in yellow wireframe (on top)
//
pRender->PushRenderMode( RENDER_MODE_WIREFRAME );
for (int i = 0; i < m_Faces.Count(); i++) { CMapFace *pFace = m_Faces.Element(i); pFace->Render3D(pRender); }
//
// Restore the default rendering mode.
//
pRender->PopRenderMode();
pRenderContext->PopMatrix(); } }
//-----------------------------------------------------------------------------
// Purpose:
// Input : File -
// bRMF -
// Output : int
//-----------------------------------------------------------------------------
int CMapFrustum::SerializeRMF(std::fstream &File, BOOL bRMF) { return(0); }
//-----------------------------------------------------------------------------
// Purpose:
// Input : File -
// bRMF -
// Output : int
//-----------------------------------------------------------------------------
int CMapFrustum::SerializeMAP(std::fstream &File, BOOL bRMF) { return(0); }
void CMapFrustum::GetAngles(QAngle& Angles) { Angles = m_Angles; }
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