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465
engines/hpl1/engine/graphics/Beam.cpp
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465
engines/hpl1/engine/graphics/Beam.cpp
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* Copyright (C) 2006-2010 - Frictional Games
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*
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* This file is part of HPL1 Engine.
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*/
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#include "hpl1/engine/graphics/Beam.h"
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#include "hpl1/engine/impl/tinyXML/tinyxml.h"
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#include "hpl1/engine/graphics/Graphics.h"
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#include "hpl1/engine/graphics/LowLevelGraphics.h"
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#include "hpl1/engine/graphics/Material.h"
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#include "hpl1/engine/graphics/VertexBuffer.h"
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#include "hpl1/engine/math/Math.h"
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#include "hpl1/engine/resources/FileSearcher.h"
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#include "hpl1/engine/resources/MaterialManager.h"
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#include "hpl1/engine/resources/Resources.h"
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#include "hpl1/engine/scene/Camera3D.h"
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#include "hpl1/engine/scene/Scene.h"
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#include "hpl1/engine/scene/World3D.h"
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#include "hpl1/engine/game/Game.h"
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namespace hpl {
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//////////////////////////////////////////////////////////////////////////
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// CONSTRUCTORS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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cBeam::cBeam(const tString asName, cResources *apResources, cGraphics *apGraphics) : iRenderable(asName) {
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mpMaterialManager = apResources->GetMaterialManager();
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mpFileSearcher = apResources->GetFileSearcher();
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mpLowLevelGraphics = apGraphics->GetLowLevel();
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msFileName = "";
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mvSize = 1;
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mbTileHeight = true;
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mColor = cColor(1, 1, 1, 1);
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mpMaterial = NULL;
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mlLastRenderCount = -1;
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mpVtxBuffer = mpLowLevelGraphics->CreateVertexBuffer(
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eVertexFlag_Position | eVertexFlag_Color0 | eVertexFlag_Texture0 |
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eVertexFlag_Normal,
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eVertexBufferDrawType_Tri, eVertexBufferUsageType_Dynamic, 4, 6);
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cVector3f vCoords[4] = {cVector3f((mvSize.x / 2), -(mvSize.y / 2), 0),
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cVector3f(-(mvSize.x / 2), -(mvSize.y / 2), 0),
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cVector3f(-(mvSize.x / 2), (mvSize.y / 2), 0),
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cVector3f((mvSize.x / 2), (mvSize.y / 2), 0)};
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cVector3f vTexCoords[4] = {cVector3f(1, 1, 0), // Bottom left
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cVector3f(-1, 1, 0), // Bottom right
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cVector3f(-1, -1, 0), // Top left
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cVector3f(1, -1, 0)}; // Top right
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for (int i = 0; i < 4; i++) {
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mpVtxBuffer->AddVertex(eVertexFlag_Position, vCoords[i]);
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mpVtxBuffer->AddColor(eVertexFlag_Color0, cColor(1, 1, 1, 1));
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mpVtxBuffer->AddVertex(eVertexFlag_Texture0, (vTexCoords[i] + cVector2f(1, 1)) / 2);
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mpVtxBuffer->AddVertex(eVertexFlag_Normal, cVector3f(0, 0, 1));
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}
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for (int i = 0; i < 3; i++)
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mpVtxBuffer->AddIndex(i);
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for (int i = 2; i < 5; i++)
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mpVtxBuffer->AddIndex(i == 4 ? 0 : i);
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mpVtxBuffer->Compile(eVertexCompileFlag_CreateTangents);
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mpEnd = hplNew(cBeamEnd, (asName + "_end", this));
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mpEnd->AddCallback(&mEndCallback);
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// Some temp setup
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mBoundingVolume.SetSize(cVector3f(mvSize.x, mvSize.y, mvSize.x));
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mbApplyTransformToBV = false;
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}
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//-----------------------------------------------------------------------
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cBeam::~cBeam() {
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hplDelete(mpEnd);
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if (mpMaterial)
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mpMaterialManager->Destroy(mpMaterial);
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if (mpVtxBuffer)
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hplDelete(mpVtxBuffer);
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}
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// PUBLIC METHODS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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void cBeam::SetSize(const cVector2f &avSize) {
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mvSize = avSize;
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mBoundingVolume.SetSize(cVector3f(mvSize.x, mvSize.y, mvSize.x));
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SetTransformUpdated();
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}
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//-----------------------------------------------------------------------
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void cBeam::SetTileHeight(bool abX) {
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if (mbTileHeight == abX)
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return;
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mbTileHeight = abX;
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SetTransformUpdated();
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}
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//-----------------------------------------------------------------------
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void cBeam::SetMultiplyAlphaWithColor(bool abX) {
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if (mbMultiplyAlphaWithColor == abX)
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return;
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mbMultiplyAlphaWithColor = abX;
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}
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//-----------------------------------------------------------------------
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void cBeam::SetColor(const cColor &aColor) {
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if (mColor == aColor)
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return;
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mColor = aColor;
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float *pColors = mpVtxBuffer->GetArray(eVertexFlag_Color0);
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// Change "lower colors"
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if (mbMultiplyAlphaWithColor) {
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for (int i = 0; i < 2; ++i) {
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pColors[0] = mColor.r * mColor.a;
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pColors[1] = mColor.g * mColor.a;
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pColors[2] = mColor.b * mColor.a;
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pColors[3] = mColor.a;
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pColors += 4;
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}
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} else {
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for (int i = 0; i < 2; ++i) {
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pColors[0] = mColor.r;
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pColors[1] = mColor.g;
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pColors[2] = mColor.b;
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pColors[3] = mColor.a;
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pColors += 4;
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}
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}
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mpVtxBuffer->UpdateData(eVertexFlag_Color0, false);
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}
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//-----------------------------------------------------------------------
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void cBeam::SetMaterial(iMaterial *apMaterial) {
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mpMaterial = apMaterial;
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}
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//-----------------------------------------------------------------------
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cBoundingVolume *cBeam::GetBoundingVolume() {
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if (mbUpdateBoundingVolume) {
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cVector3f vMax = GetWorldPosition();
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cVector3f vMin = vMax;
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cVector3f vEnd = mpEnd->GetWorldPosition();
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if (vMax.x < vEnd.x)
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vMax.x = vEnd.x;
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if (vMax.y < vEnd.y)
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vMax.y = vEnd.y;
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if (vMax.z < vEnd.z)
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vMax.z = vEnd.z;
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if (vMin.x > vEnd.x)
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vMin.x = vEnd.x;
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if (vMin.y > vEnd.y)
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vMin.y = vEnd.y;
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if (vMin.z > vEnd.z)
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vMin.z = vEnd.z;
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vMin -= cVector3f(mvSize.x);
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vMax += cVector3f(mvSize.x);
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mBoundingVolume.SetLocalMinMax(vMin, vMax);
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mbUpdateBoundingVolume = false;
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}
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return &mBoundingVolume;
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}
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//-----------------------------------------------------------------------
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void cBeam::UpdateGraphics(cCamera3D *apCamera, float afFrameTime, cRenderList *apRenderList) {
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if (mlStartTransformCount == GetTransformUpdateCount() &&
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mlEndTransformCount == GetTransformUpdateCount()) {
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return;
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}
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////////////////////////////////
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// Get Axis
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mvAxis = mpEnd->GetWorldPosition() - GetWorldPosition();
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mvMidPosition = GetWorldPosition() + mvAxis * 0.5f;
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float fDist = mvAxis.Length();
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mvAxis.Normalise();
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////////////////////////////////
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// Update vertex buffer
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cVector2f vBeamSize = cVector2f(mvSize.x, fDist);
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float *pPos = mpVtxBuffer->GetArray(eVertexFlag_Position);
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float *pTex = mpVtxBuffer->GetArray(eVertexFlag_Texture0);
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cVector3f vCoords[4] = {cVector3f((vBeamSize.x / 2), -(vBeamSize.y / 2), 0),
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cVector3f(-(vBeamSize.x / 2), -(vBeamSize.y / 2), 0),
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cVector3f(-(vBeamSize.x / 2), (vBeamSize.y / 2), 0),
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cVector3f((vBeamSize.x / 2), (vBeamSize.y / 2), 0)};
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cVector3f vTexCoords[4];
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if (mbTileHeight) {
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vTexCoords[0] = cVector3f(1, 1, 0); // Bottom left
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vTexCoords[1] = cVector3f(0, 1, 0); // Bottom right
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vTexCoords[2] = cVector3f(0, -fDist / mvSize.y, 0); // Top left
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vTexCoords[3] = cVector3f(1, -fDist / mvSize.y, 0); // Top right
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} else {
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vTexCoords[0] = cVector3f(1, 1, 0); // Bottom left
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vTexCoords[1] = cVector3f(0, 1, 0); // Bottom right
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vTexCoords[2] = cVector3f(0, 0, 0); // Top left
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vTexCoords[3] = cVector3f(1, 0, 0); // Top right
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}
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for (int i = 0; i < 4; ++i) {
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pPos[0] = vCoords[i].x;
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pPos[1] = vCoords[i].y;
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pPos[2] = vCoords[i].z;
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pPos += 4;
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pTex[0] = vTexCoords[i].x;
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pTex[1] = vTexCoords[i].y;
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pTex += 3;
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}
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mpVtxBuffer->UpdateData(eVertexFlag_Position | eVertexFlag_Texture0, false);
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}
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//-----------------------------------------------------------------------
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cMatrixf *cBeam::GetModelMatrix(cCamera3D *apCamera) {
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if (apCamera == NULL)
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return &GetWorldMatrix();
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m_mtxTempTransform = GetWorldMatrix();
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cVector3f vForward, vRight, vUp;
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cVector3f vCameraForward = apCamera->GetPosition() - GetWorldPosition();
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vCameraForward.Normalise();
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vUp = mvAxis; // cMath::MatrixMul(GetWorldMatrix().GetRotation(),mvAxis);
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// vUp.Normalise();
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if (vUp == vForward) {
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vRight = cMath::Vector3Cross(vUp, vCameraForward);
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Warning("Beam Right vector is not correct! Contact programmer!\n");
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} else
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vRight = cMath::Vector3Cross(vUp, vCameraForward);
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vRight.Normalise();
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vForward = cMath::Vector3Cross(vRight, vUp);
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// Set right vector
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m_mtxTempTransform.m[0][0] = vRight.x;
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m_mtxTempTransform.m[1][0] = vRight.y;
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m_mtxTempTransform.m[2][0] = vRight.z;
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// Set up vector
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m_mtxTempTransform.m[0][1] = vUp.x;
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m_mtxTempTransform.m[1][1] = vUp.y;
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m_mtxTempTransform.m[2][1] = vUp.z;
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// Set forward vector
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m_mtxTempTransform.m[0][2] = vForward.x;
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m_mtxTempTransform.m[1][2] = vForward.y;
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m_mtxTempTransform.m[2][2] = vForward.z;
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m_mtxTempTransform.SetTranslation(mvMidPosition);
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return &m_mtxTempTransform;
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}
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//-----------------------------------------------------------------------
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int cBeam::GetMatrixUpdateCount() {
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return GetTransformUpdateCount();
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}
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//-----------------------------------------------------------------------
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bool cBeam::LoadXMLProperties(const tString asFile) {
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msFileName = asFile;
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tString sNewFile = cString::SetFileExt(asFile, "beam");
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tString sPath = mpFileSearcher->GetFilePath(sNewFile);
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if (sPath != "") {
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TiXmlDocument *pDoc = hplNew(TiXmlDocument, (sPath.c_str()));
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if (pDoc->LoadFile()) {
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TiXmlElement *pRootElem = pDoc->RootElement();
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TiXmlElement *pMainElem = pRootElem->FirstChildElement("MAIN");
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if (pMainElem != NULL) {
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tString sMaterial = cString::ToString(pMainElem->Attribute("Material"), "");
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cVector2f vSize = cString::ToVector2f(pMainElem->Attribute("Size"), 1);
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bool bTileHeight = cString::ToBool(pMainElem->Attribute("TileHeight"), true);
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bool bMultiplyAlphaWithColor = cString::ToBool(pMainElem->Attribute("MultiplyAlphaWithColor"), false);
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cColor StartColor = cString::ToColor(pMainElem->Attribute("StartColor"), cColor(1, 1));
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cColor EndColor = cString::ToColor(pMainElem->Attribute("EndColor"), cColor(1, 1));
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SetSize(vSize);
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SetTileHeight(bTileHeight);
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SetMultiplyAlphaWithColor(bMultiplyAlphaWithColor);
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SetColor(StartColor);
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mpEnd->SetColor(EndColor);
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/////////////////
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// Load material
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iMaterial *pMat = mpMaterialManager->CreateMaterial(sMaterial);
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if (pMat) {
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SetMaterial(pMat);
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} else {
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Error("Couldn't load material '%s' in Beam file '%s'",
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sMaterial.c_str(), sNewFile.c_str());
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return false;
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}
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} else {
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Error("Cannot find main element in %s\n", sNewFile.c_str());
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return false;
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}
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} else {
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Error("Couldn't load file '%s'\n", sNewFile.c_str());
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}
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hplDelete(pDoc);
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} else {
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Error("Couldn't find file '%s'\n", sNewFile.c_str());
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return false;
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}
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return true;
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}
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//-----------------------------------------------------------------------
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bool cBeam::IsVisible() {
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if (mColor.r <= 0 && mColor.g <= 0 && mColor.b <= 0)
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return false;
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return IsRendered();
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}
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// BEAM END TRANSFORM UPDATE CALLBACK
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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void cBeamEnd_UpdateCallback::OnTransformUpdate(iEntity3D *apEntity) {
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cBeamEnd *pEnd = static_cast<cBeamEnd *>(apEntity);
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pEnd->mpBeam->SetTransformUpdated(true);
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}
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// BEAM END
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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void cBeamEnd::SetColor(const cColor &aColor) {
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if (mColor == aColor)
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return;
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mColor = aColor;
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float *pColors = mpBeam->mpVtxBuffer->GetArray(eVertexFlag_Color0);
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// Change "upper colors"
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pColors += 4 * 2;
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if (mpBeam->mbMultiplyAlphaWithColor) {
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for (int i = 0; i < 2; ++i) {
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pColors[0] = mColor.r * mColor.a;
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pColors[1] = mColor.g * mColor.a;
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pColors[2] = mColor.b * mColor.a;
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pColors[3] = mColor.a;
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pColors += 4;
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}
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} else {
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for (int i = 0; i < 2; ++i) {
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pColors[0] = mColor.r;
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pColors[1] = mColor.g;
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pColors[2] = mColor.b;
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pColors[3] = mColor.a;
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pColors += 4;
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}
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}
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mpBeam->mpVtxBuffer->UpdateData(eVertexFlag_Color0, false);
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}
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// PRIVATE METHODS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// SAVE OBJECT STUFF
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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} // namespace hpl
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Reference in New Issue
Block a user