global map rendering
scrawl
12 years ago
parent
32de090079
commit
86cfc91ef3
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#include "globalmap.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 "../mwbase/environment.hpp"
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#include "../mwbase/world.hpp"
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#include <components/esm_store/store.hpp>
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#include <components/esm_store/reclists.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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{
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}
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void GlobalMap::render ()
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{
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Ogre::TexturePtr tex = Ogre::TextureManager::getSingleton ().getByName ("GlobalMap.png");
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if (tex.isNull ())
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{
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int cellSize = 24;
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Ogre::Image image;
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int width = cellSize*61;
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int height = cellSize*61;
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Ogre::uchar data[width * height * 3];
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for (int x = -30; x <= 30; ++x)
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{
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for (int y = -30; y <= 30; ++y)
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{
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ESM::Land* land = MWBase::Environment::get().getWorld ()->getStore ().lands.search (x,y);
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if (land)
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{
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if (!land->dataLoaded)
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{
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land->loadData();
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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+30) * cellSize + cellX;
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int texelY = (height-1) - ((y+30) * 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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float mountainHeight = 15000.f;
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float hillHeight = 2500.f;
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unsigned char r,g,b;
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if (land)
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{
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float landHeight = land->landData->heights[vertexY * ESM::Land::LAND_SIZE + vertexX];
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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 * height * 3 + texelX * 3] = r;
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data[texelY * height * 3 + texelX * 3+1] = g;
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data[texelY * height * 3 + texelX * 3+2] = b;
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}
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assert(0);
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}
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}
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}
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image.loadDynamicImage (data, width, height, Ogre::PF_B8G8R8);
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image.save (mCacheDir + "/GlobalMap.png");
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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, width, height, 0, Ogre::PF_B8G8R8, Ogre::TU_DEFAULT);
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tex->loadImage(image);
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}
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tex->load();
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}
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}
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@ -0,0 +1,23 @@
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#ifndef _GAME_RENDER_GLOBALMAP_H
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#define _GAME_RENDER_GLOBALMAP_H
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#include <string>
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namespace MWRender
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{
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class GlobalMap
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{
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public:
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GlobalMap(const std::string& cacheDir);
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void render();
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private:
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std::string mCacheDir;
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};
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}
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#endif
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