LGram16
e067522598
Game client codebase including: - CharacterActionControl: Character and creature management - GlobalScript: Network, items, skills, quests, utilities - RYLClient: Main client application with GUI and event handlers - Engine: 3D rendering engine (RYLGL) - MemoryManager: Custom memory allocation - Library: Third-party dependencies (DirectX, boost, etc.) - Tools: Development utilities 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
158 lines
5.6 KiB
C++
158 lines
5.6 KiB
C++
// ViewFrustum.cpp: implementation of the CViewFrustum class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "ViewFrustum.h"
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#include "SceneManager.h"
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#include "GMMemory.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CViewFrustum::CViewFrustum()
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{
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}
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CViewFrustum::~CViewFrustum()
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{
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}
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void CViewFrustum::Update() {
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LPDIRECT3DDEVICE8 device;
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D3DXMATRIX view;
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D3DXMATRIX project;
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D3DXMATRIX clip;
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device = CSceneManager::GetDevice();
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device->GetTransform(D3DTS_VIEW,&view);
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device->GetTransform(D3DTS_PROJECTION,&project);
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D3DXMatrixMultiply(&clip,&view,&project);
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//left plane
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m_Frustum[LEFT_P].a = clip._14 + clip._11;
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m_Frustum[LEFT_P].b = clip._24 + clip._21;
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m_Frustum[LEFT_P].c = clip._34 + clip._31;
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m_Frustum[LEFT_P].d = clip._44 + clip._41;
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//right plane
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m_Frustum[RIGHT_P].a = clip._14 - clip._11;
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m_Frustum[RIGHT_P].b = clip._24 - clip._21;
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m_Frustum[RIGHT_P].c = clip._34 - clip._31;
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m_Frustum[RIGHT_P].d = clip._44 - clip._41;
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//top plane
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m_Frustum[TOP_P].a = clip._14 - clip._12;
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m_Frustum[TOP_P].b = clip._24 - clip._22;
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m_Frustum[TOP_P].c = clip._34 - clip._32;
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m_Frustum[TOP_P].d = clip._44 - clip._42;
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//bottom plane
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m_Frustum[BOTTOM_P].a = clip._14 + clip._12;
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m_Frustum[BOTTOM_P].b = clip._24 + clip._22;
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m_Frustum[BOTTOM_P].c = clip._34 + clip._32;
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m_Frustum[BOTTOM_P].d = clip._44 + clip._42;
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//near plane
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m_Frustum[NEAR_P].a = clip._13;
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m_Frustum[NEAR_P].b = clip._23;
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m_Frustum[NEAR_P].c = clip._33;
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m_Frustum[NEAR_P].d = clip._43;
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//far plane
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m_Frustum[FAR_P].a = clip._14 - clip._13;
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m_Frustum[FAR_P].b = clip._24 - clip._23;
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m_Frustum[FAR_P].c = clip._34 - clip._33;
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m_Frustum[FAR_P].d = clip._44 - clip._43;
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//normalize plane
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for(int i=0;i<6;i++)
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D3DXPlaneNormalize(&(m_Frustum[i]),&(m_Frustum[i]));
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}
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bool CViewFrustum::PointInFrustum(float x,float y,float z) {
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for(int i=0;i<6;i++) {
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float fvalue = m_Frustum[i].a * x + m_Frustum[i].b * y + m_Frustum[i].c * z + m_Frustum[i].d;
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if(fvalue <= 0)
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return false; //point not in frustum
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}
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// point in frustum
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return true;
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}
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bool CViewFrustum::SphereInFrustum(float x,float y,float z,float rad){
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for(int i=0;i<6;i++) {
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float fvalue = m_Frustum[i].a * x + m_Frustum[i].b * y + m_Frustum[i].c * z + m_Frustum[i].d;
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if(fvalue <= -rad)
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return false; //Sphere not in frustum
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}
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// Sphere in frustum
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return true;
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}
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bool CViewFrustum::BoxInFrustum(int *vecMin,int *vecMax) {
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for(int i = 0; i < 6; i++ )
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{
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if(m_Frustum[i].a * vecMin[0] + m_Frustum[i].b * vecMin[1] + m_Frustum[i].c * vecMin[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax[0] + m_Frustum[i].b * vecMin[1] + m_Frustum[i].c * vecMin[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMin[0] + m_Frustum[i].b * vecMax[1] + m_Frustum[i].c * vecMin[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax[0] + m_Frustum[i].b * vecMax[1] + m_Frustum[i].c * vecMin[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMin[0] + m_Frustum[i].b * vecMin[1] + m_Frustum[i].c * vecMax[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax[0] + m_Frustum[i].b * vecMin[1] + m_Frustum[i].c * vecMax[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMin[0] + m_Frustum[i].b * vecMax[1] + m_Frustum[i].c * vecMax[2] + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax[0] + m_Frustum[i].b * vecMax[1] + m_Frustum[i].c * vecMax[2] + m_Frustum[i].d > 0) continue;
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// If we get here, it isn't in the frustum
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return false;
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}
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// Return a true for the box being inside of the frustum
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return true;
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}
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bool CViewFrustum::BoxInFrustum(D3DXVECTOR3 vecMin,D3DXVECTOR3 vecMax) {
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for(int i = 0; i < 6; i++ )
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{
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if(m_Frustum[i].a * vecMin.x + m_Frustum[i].b * vecMin.y + m_Frustum[i].c * vecMin.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax.x + m_Frustum[i].b * vecMin.y + m_Frustum[i].c * vecMin.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMin.x + m_Frustum[i].b * vecMax.y + m_Frustum[i].c * vecMin.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax.x + m_Frustum[i].b * vecMax.y + m_Frustum[i].c * vecMin.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMin.x + m_Frustum[i].b * vecMin.y + m_Frustum[i].c * vecMax.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax.x + m_Frustum[i].b * vecMin.y + m_Frustum[i].c * vecMax.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMin.x + m_Frustum[i].b * vecMax.y + m_Frustum[i].c * vecMax.z + m_Frustum[i].d > 0) continue;
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if(m_Frustum[i].a * vecMax.x + m_Frustum[i].b * vecMax.y + m_Frustum[i].c * vecMax.z + m_Frustum[i].d > 0) continue;
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// If we get here, it isn't in the frustum
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return false;
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}
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// Return a true for the box being inside of the frustum
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return true;
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}
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bool CViewFrustum::BoxInFrustum(RCullingBox *BoundB) {
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BYTE bOutside[8];
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ZeroMemory( &bOutside, sizeof(bOutside) );
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//bound box check in frustum
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for( int iPoint = 0; iPoint < 8; iPoint++) {
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for( int iPlane = 0; iPlane < 6; iPlane++) {
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// bound box <20><><EFBFBD><EFBFBD> frustum plane <20>ܺο<DCBA> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if((m_Frustum[iPlane].a * (BoundB->m_WorldBound[iPoint].x) +
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m_Frustum[iPlane].b * (BoundB->m_WorldBound[iPoint].y) +
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m_Frustum[iPlane].c * (BoundB->m_WorldBound[iPoint].z) +
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m_Frustum[iPlane].d) < 0) {
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//<2F>ܺο<DCBA> <20><><EFBFBD><EFBFBD> <20>Ҷ<EFBFBD> 1 bit setting
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bOutside[iPoint] |= (1 << iPlane);
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}
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}
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// bound box inside frustum.
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if( bOutside[iPoint] == 0 )
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return true;
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}
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return false;
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}
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