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236 lines
9.7 KiB
C++
236 lines
9.7 KiB
C++
#include "globalmap.hpp"
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#include <boost/filesystem.hpp>
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#include <boost/lexical_cast.hpp>
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#include <OgreImage.h>
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#include <OgreTextureManager.h>
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#include <OgreColourValue.h>
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#include <OgreHardwareVertexBuffer.h>
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#include <OgreRoot.h>
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#include <OgreHardwarePixelBuffer.h>
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#include <components/loadinglistener/loadinglistener.hpp>
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#include "../mwbase/environment.hpp"
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#include "../mwbase/world.hpp"
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#include "../mwworld/esmstore.hpp"
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namespace MWRender
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{
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GlobalMap::GlobalMap(const std::string &cacheDir)
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: mCacheDir(cacheDir)
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, mMinX(0), mMaxX(0)
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, mMinY(0), mMaxY(0)
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, mWidth(0)
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, mHeight(0)
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{
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}
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void GlobalMap::render (Loading::Listener* loadingListener)
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{
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Ogre::TexturePtr tex;
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const MWWorld::ESMStore &esmStore =
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MWBase::Environment::get().getWorld()->getStore();
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// get the size of the world
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MWWorld::Store<ESM::Cell>::iterator it = esmStore.get<ESM::Cell>().extBegin();
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for (; it != esmStore.get<ESM::Cell>().extEnd(); ++it)
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{
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if (it->getGridX() < mMinX)
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mMinX = it->getGridX();
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if (it->getGridX() > mMaxX)
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mMaxX = it->getGridX();
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if (it->getGridY() < mMinY)
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mMinY = it->getGridY();
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if (it->getGridY() > mMaxY)
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mMaxY = it->getGridY();
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}
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int cellSize = 24;
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mWidth = cellSize*(mMaxX-mMinX+1);
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mHeight = cellSize*(mMaxY-mMinY+1);
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loadingListener->loadingOn();
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loadingListener->setLabel("Creating map");
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loadingListener->setProgressRange((mMaxX-mMinX+1) * (mMaxY-mMinY+1));
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loadingListener->setProgress(0);
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mExploredBuffer.resize((mMaxX-mMinX+1) * (mMaxY-mMinY+1) * 4);
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//if (!boost::filesystem::exists(mCacheDir + "/GlobalMap.png"))
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if (1)
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{
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std::vector<Ogre::uchar> data (mWidth * mHeight * 3);
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for (int x = mMinX; x <= mMaxX; ++x)
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{
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for (int y = mMinY; y <= mMaxY; ++y)
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{
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ESM::Land* land = esmStore.get<ESM::Land>().search (x,y);
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if (land)
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{
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if (!land->isDataLoaded(ESM::Land::DATA_VHGT))
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{
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land->loadData(ESM::Land::DATA_VHGT);
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}
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}
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for (int cellY=0; cellY<cellSize; ++cellY)
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{
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for (int cellX=0; cellX<cellSize; ++cellX)
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{
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int vertexX = float(cellX)/float(cellSize) * ESM::Land::LAND_SIZE;
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int vertexY = float(cellY)/float(cellSize) * ESM::Land::LAND_SIZE;
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int texelX = (x-mMinX) * cellSize + cellX;
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int texelY = (mHeight-1) - ((y-mMinY) * cellSize + cellY);
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Ogre::ColourValue waterShallowColour(0.15, 0.2, 0.19);
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Ogre::ColourValue waterDeepColour(0.1, 0.14, 0.13);
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Ogre::ColourValue groundColour(0.254, 0.19, 0.13);
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Ogre::ColourValue mountainColour(0.05, 0.05, 0.05);
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Ogre::ColourValue hillColour(0.16, 0.12, 0.08);
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unsigned char r,g,b;
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if (land)
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{
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const float landHeight = land->mLandData->mHeights[vertexY * ESM::Land::LAND_SIZE + vertexX];
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const float mountainHeight = 15000.f;
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const float hillHeight = 2500.f;
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if (landHeight >= 0)
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{
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if (landHeight >= hillHeight)
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{
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float factor = std::min(1.f, float(landHeight-hillHeight)/mountainHeight);
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r = (hillColour.r * (1-factor) + mountainColour.r * factor) * 255;
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g = (hillColour.g * (1-factor) + mountainColour.g * factor) * 255;
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b = (hillColour.b * (1-factor) + mountainColour.b * factor) * 255;
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}
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else
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{
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float factor = std::min(1.f, float(landHeight)/hillHeight);
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r = (groundColour.r * (1-factor) + hillColour.r * factor) * 255;
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g = (groundColour.g * (1-factor) + hillColour.g * factor) * 255;
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b = (groundColour.b * (1-factor) + hillColour.b * factor) * 255;
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}
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}
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else
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{
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if (landHeight >= -100)
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{
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float factor = std::min(1.f, -1*landHeight/100.f);
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r = (((waterShallowColour+groundColour)/2).r * (1-factor) + waterShallowColour.r * factor) * 255;
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g = (((waterShallowColour+groundColour)/2).g * (1-factor) + waterShallowColour.g * factor) * 255;
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b = (((waterShallowColour+groundColour)/2).b * (1-factor) + waterShallowColour.b * factor) * 255;
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}
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else
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{
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float factor = std::min(1.f, -1*(landHeight-100)/1000.f);
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r = (waterShallowColour.r * (1-factor) + waterDeepColour.r * factor) * 255;
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g = (waterShallowColour.g * (1-factor) + waterDeepColour.g * factor) * 255;
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b = (waterShallowColour.b * (1-factor) + waterDeepColour.b * factor) * 255;
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}
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}
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}
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else
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{
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r = waterDeepColour.r * 255;
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g = waterDeepColour.g * 255;
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b = waterDeepColour.b * 255;
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}
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data[texelY * mWidth * 3 + texelX * 3] = r;
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data[texelY * mWidth * 3 + texelX * 3+1] = g;
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data[texelY * mWidth * 3 + texelX * 3+2] = b;
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}
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}
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loadingListener->increaseProgress(1);
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}
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}
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Ogre::DataStreamPtr stream(new Ogre::MemoryDataStream(&data[0], data.size()));
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tex = Ogre::TextureManager::getSingleton ().createManual ("GlobalMap.png", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
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Ogre::TEX_TYPE_2D, mWidth, mHeight, 0, Ogre::PF_B8G8R8, Ogre::TU_STATIC);
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tex->loadRawData(stream, mWidth, mHeight, Ogre::PF_B8G8R8);
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}
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else
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tex = Ogre::TextureManager::getSingleton ().getByName ("GlobalMap.png");
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tex->load();
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mOverlayTexture = Ogre::TextureManager::getSingleton().createManual("GlobalMapOverlay", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
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Ogre::TEX_TYPE_2D, mWidth, mHeight, 0, Ogre::PF_A8B8G8R8, Ogre::TU_DYNAMIC_WRITE_ONLY);
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std::vector<Ogre::uint32> buffer;
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buffer.resize(mWidth * mHeight);
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// initialize to (0, 0, 0, 0)
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for (int p=0; p<mWidth * mHeight; ++p)
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buffer[p] = 0;
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memcpy(mOverlayTexture->getBuffer()->lock(Ogre::HardwareBuffer::HBL_DISCARD), &buffer[0], mWidth*mHeight*4);
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mOverlayTexture->getBuffer()->unlock();
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loadingListener->loadingOff();
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}
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void GlobalMap::worldPosToImageSpace(float x, float z, float& imageX, float& imageY)
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{
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imageX = float(x / 8192.f - mMinX) / (mMaxX - mMinX + 1);
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imageY = 1.f-float(z / 8192.f - mMinY) / (mMaxY - mMinY + 1);
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}
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void GlobalMap::cellTopLeftCornerToImageSpace(int x, int y, float& imageX, float& imageY)
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{
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imageX = float(x - mMinX) / (mMaxX - mMinX + 1);
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// NB y + 1, because we want the top left corner, not bottom left where the origin of the cell is
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imageY = 1.f-float(y - mMinY + 1) / (mMaxY - mMinY + 1);
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}
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void GlobalMap::exploreCell(int cellX, int cellY)
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{
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float originX = (cellX - mMinX) * 24;
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// NB y + 1, because we want the top left corner, not bottom left where the origin of the cell is
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float originY = mHeight - (cellY+1 - mMinY) * 24;
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if (cellX > mMaxX || cellX < mMinX || cellY > mMaxY || cellY < mMinY)
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return;
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Ogre::TexturePtr localMapTexture = Ogre::TextureManager::getSingleton().getByName("Cell_"
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+ boost::lexical_cast<std::string>(cellX) + "_" + boost::lexical_cast<std::string>(cellY));
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// mipmap version - can't get ogre to generate automips..
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/*if (!localMapTexture.isNull())
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{
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assert(localMapTexture->getBuffer(0, 4)->getWidth() == 64); // 1024 / 2^4
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mOverlayTexture->getBuffer()->blit(localMapTexture->getBuffer(0, 4), Ogre::Image::Box(0,0,64, 64),
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Ogre::Image::Box(originX,originY,originX+24,originY+24));
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}*/
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if (!localMapTexture.isNull())
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{
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mOverlayTexture->getBuffer()->blit(localMapTexture->getBuffer(), Ogre::Image::Box(0,0,512,512),
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Ogre::Image::Box(originX,originY,originX+24,originY+24));
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}
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}
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}
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