mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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306 lines
11 KiB
C++
306 lines
11 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#include "platform/platform.h"
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#include "terrain/terrData.h"
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#include "gfx/bitmap/gBitmap.h"
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#include "sim/netConnection.h"
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#include "core/strings/stringUnit.h"
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#include "core/resourceManager.h"
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#include "gui/worldEditor/terrainEditor.h"
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#include "util/noise2d.h"
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#include "core/volume.h"
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using namespace Torque;
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DefineEngineStaticMethod( TerrainBlock, createNew, S32, (String terrainName, U32 resolution, String materialName, bool genNoise),,
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"" )
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{
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Vector<String> materials;
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materials.push_back( materialName );
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TerrainBlock *terrain = new TerrainBlock();
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// We create terrains based on level name. If the user wants to rename the terrain names; they have to
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// rename it themselves in their file browser. The main reason for this is so we can easily increment for ourselves;
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// and because its too easy to rename the terrain object and forget to take care of the terrain filename afterwards.
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FileName terrFileName( Con::getVariable("$Client::MissionFile") );
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String terrainDirectory( Con::getVariable( "$pref::Directories::Terrain" ) );
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if ( terrainDirectory.isEmpty() )
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{
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terrainDirectory = "art/terrains/";
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}
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terrFileName.replace("tools/levels/", terrainDirectory);
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terrFileName.replace("levels/", terrainDirectory);
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TerrainFile::create( &terrFileName, resolution, materials );
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if( !terrain->setFile( terrFileName ) )
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{
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Con::errorf( "TerrainBlock::createNew - error creating '%s'", terrFileName.c_str() );
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return 0;
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}
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terrain->setPosition( Point3F( 0, 0, 0 ) );
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const U32 blockSize = terrain->getBlockSize();
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if ( genNoise )
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{
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TerrainFile *file = terrain->getFile();
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Vector<F32> floatHeights;
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floatHeights.setSize( blockSize * blockSize );
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Noise2D noise;
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noise.setSeed( 134208587 );
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// Set up some defaults.
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const F32 octaves = 3.0f;
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const U32 freq = 4;
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const F32 roughness = 0.0f;
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noise.fBm( &floatHeights, blockSize, freq, 1.0f - roughness, octaves );
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F32 height = 0;
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F32 omax, omin;
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noise.getMinMax( &floatHeights, &omin, &omax, blockSize );
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const F32 terrscale = 300.0f / (omax - omin);
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for ( S32 y = 0; y < blockSize; y++ )
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{
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for ( S32 x = 0; x < blockSize; x++ )
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{
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// Very important to subtract the min
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// noise value when using the noise functions
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// for terrain, otherwise floatToFixed() will
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// wrap negative values to U16_MAX, creating
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// a very ugly terrain.
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height = (floatHeights[ x + (y * blockSize) ] - omin) * terrscale + 30.0f;
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file->setHeight( x, y, floatToFixed( height ) );
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}
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}
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terrain->updateGrid( Point2I::Zero, Point2I( blockSize, blockSize ) );
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terrain->updateGridMaterials( Point2I::Zero, Point2I( blockSize, blockSize ) );
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}
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terrain->registerObject( terrainName.c_str() );
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// Add to mission group!
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SimGroup *missionGroup;
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if( Sim::findObject( "MissionGroup", missionGroup ) )
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missionGroup->addObject( terrain );
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return terrain->getId();
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}
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DefineEngineStaticMethod( TerrainBlock, import, S32, (String terrainName, String heightMapFile, F32 metersPerPixel, F32 heightScale, String opacityLayerFiles, String materialsStr, bool flipYAxis), (true),
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"" )
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{
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// First load the height map and validate it.
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Resource<GBitmap> heightmap = GBitmap::load(heightMapFile);
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if ( !heightmap )
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{
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Con::errorf( "Heightmap failed to load!" );
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return 0;
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}
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U32 terrSize = heightmap->getWidth();
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U32 hheight = heightmap->getHeight();
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if ( terrSize != hheight || !isPow2( terrSize ) )
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{
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Con::errorf( "Height map must be square and power of two in size!" );
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return 0;
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}
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else if ( terrSize < 128 || terrSize > 4096 )
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{
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Con::errorf( "Height map must be between 128 and 4096 in size!" );
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return 0;
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}
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U32 fileCount = StringUnit::getUnitCount(opacityLayerFiles, "\n" );
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Vector<U8> layerMap;
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layerMap.setSize( terrSize * terrSize );
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{
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Vector<GBitmap*> bitmaps;
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for ( U32 i = 0; i < fileCount; i++ )
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{
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String fileNameWithChannel = StringUnit::getUnit(opacityLayerFiles, i, "\n" );
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String fileName = StringUnit::getUnit( fileNameWithChannel, 0, "\t" );
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String channel = StringUnit::getUnit( fileNameWithChannel, 1, "\t" );
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if ( fileName.isEmpty() )
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continue;
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if ( !channel.isEmpty() )
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{
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// Load and push back the bitmap here.
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Resource<GBitmap> opacityMap = ResourceManager::get().load( fileName );
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if ( terrSize != opacityMap->getWidth() || terrSize != opacityMap->getHeight() )
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{
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Con::errorf( "The opacity map '%s' doesn't match height map size!", fileName.c_str() );
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return 0;
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}
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// Always going to be one channel.
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GBitmap *opacityMapChannel = new GBitmap( terrSize,
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terrSize,
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false,
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GFXFormatA8 );
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if ( opacityMap->getBytesPerPixel() > 1 )
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{
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if ( channel.equal( "R", 1 ) )
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opacityMap->copyChannel( 0, opacityMapChannel );
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else if ( channel.equal( "G", 1 ) )
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opacityMap->copyChannel( 1, opacityMapChannel );
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else if ( channel.equal( "B", 1 ) )
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opacityMap->copyChannel( 2, opacityMapChannel );
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else if ( channel.equal( "A", 1 ) )
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opacityMap->copyChannel( 3, opacityMapChannel );
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bitmaps.push_back( opacityMapChannel );
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}
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else
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{
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opacityMapChannel->copyRect( opacityMap, RectI( 0, 0, terrSize, terrSize ), Point2I( 0, 0 ) );
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bitmaps.push_back( opacityMapChannel );
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}
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}
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}
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// Ok... time to convert all this opacity layer
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// mess to the layer index map!
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U32 layerCount = bitmaps.size() - 1;
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U32 layer, lastValue;
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U8 value;
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for ( U32 i = 0; i < terrSize * terrSize; i++ )
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{
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// Find the greatest layer.
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layer = lastValue = 0;
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for ( U32 k=0; k < bitmaps.size(); k++ )
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{
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value = bitmaps[k]->getBits()[i];
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if ( value >= lastValue )
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{
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layer = k;
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lastValue = value;
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}
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}
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// Set the layer index.
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layerMap[i] = getMin( layer, layerCount );
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}
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// Cleanup the bitmaps.
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for ( U32 i=0; i < bitmaps.size(); i++ )
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delete bitmaps[i];
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}
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U32 matCount = StringUnit::getUnitCount( materialsStr, "\t\n" );
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if( matCount != fileCount)
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{
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Con::errorf("Number of Materials and Layer maps must be equal.");
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return 0;
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}
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Vector<String> materials;
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for ( U32 i = 0; i < matCount; i++ )
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{
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String matStr = StringUnit::getUnit( materialsStr, i, "\t\n" );
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// even if matStr is empty, insert it as a placeholder (will be replaced with warning material later)
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materials.push_back( matStr );
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}
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// Do we have an existing terrain with that name... then update it!
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TerrainBlock *terrain = dynamic_cast<TerrainBlock*>( Sim::findObject( terrainName.c_str() ) );
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if ( terrain )
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terrain->import( (*heightmap), heightScale, metersPerPixel, layerMap, materials, flipYAxis );
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else
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{
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terrain = new TerrainBlock();
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terrain->assignName( terrainName );
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terrain->import( (*heightmap), heightScale, metersPerPixel, layerMap, materials, flipYAxis );
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terrain->registerObject();
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// Add to mission group!
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SimGroup *missionGroup;
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if ( Sim::findObject( "MissionGroup", missionGroup ) )
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missionGroup->addObject( terrain );
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}
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return terrain->getId();
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}
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bool TerrainBlock::import( const GBitmap &heightMap,
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F32 heightScale,
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F32 metersPerPixel,
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const Vector<U8> &layerMap,
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const Vector<String> &materials,
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bool flipYAxis)
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{
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AssertFatal( isServerObject(), "TerrainBlock::import - This should only be called on the server terrain!" );
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AssertFatal( heightMap.getWidth() == heightMap.getHeight(), "TerrainBlock::import - Height map is not square!" );
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AssertFatal( isPow2( heightMap.getWidth() ), "TerrainBlock::import - Height map is not power of two!" );
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// If we don't have a terrain file then add one.
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if ( !mFile )
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{
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// Get a unique file name for the terrain.
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String fileName( getName() );
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if ( fileName.isEmpty() )
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fileName = "terrain";
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mTerrFileName = FS::MakeUniquePath( "levels", fileName, "ter" );
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// TODO: We have to save and reload the file to get
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// it into the resource system. This creates lots
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// of temporary unused files when the terrain is
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// discarded because of undo or quit.
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TerrainFile *file = new TerrainFile;
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file->save( mTerrFileName );
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delete file;
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mFile = ResourceManager::get().load( mTerrFileName );
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}
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// The file does a bunch of the work.
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mFile->import( heightMap, heightScale, layerMap, materials, flipYAxis );
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// Set the square size.
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mSquareSize = metersPerPixel;
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if ( isProperlyAdded() )
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{
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// Update the server bounds.
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_updateBounds();
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// Make sure the client gets updated.
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setMaskBits( HeightMapChangeMask | SizeMask );
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}
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return true;
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}
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