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// Copyright Spring project, Hugh Perkins 2006, 2009
// hughperkins@gmail.com http://manageddreams.com
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along
// with this program in the file licence.txt; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-
// 1307 USA
// You can find the licence also on the web at:
// http://www.opensource.org/licenses/gpl-license.php
//
// ======================================================================================
//
package hughai.mapping;
import java.io.*;
import com.springrts.ai.*;
import com.springrts.ai.oo.*;
import com.springrts.ai.oo.clb.*;
import hughai.basictypes.*;
import hughai.*;
import hughai.mapping.HeightMap.HeightMapPos;
import hughai.utils.*;
import hughai.ui.*;
public class SlopeMap
{
public static final int granularity = 2;
public static class SlopeMapPos extends Int2 {
public SlopeMapPos() {
}
public SlopeMapPos( Int2 int2 ) {
x = int2.x;
y = int2.y;
}
public SlopeMapPos( int x, int y ) {
super( x, y );
}
public TerrainPos toTerrainPos() {
return new TerrainPos( x * 8 * granularity, 0, y * 8 * granularity );
}
public static SlopeMapPos fromTerrainPos( TerrainPos terrainPos ) {
return new SlopeMapPos( (int)terrainPos.x / 8 / granularity,
(int)terrainPos.z / 8 / granularity );
}
public static SlopeMapPos fromHeightMapPos( HeightMapPos heightMapPos ) {
return new SlopeMapPos( (int)heightMapPos.x / granularity,
(int)heightMapPos.y / granularity );
}
}
CSAI csai;
OOAICallback aicallback;
LogFile logfile;
// MovementMaps movementMaps;
Map gameMap;
// HeightMap heightMap;
// Maps playerObjects.getMaps();
PlayerObjects playerObjects;
private float[][] SlopeMap;
public SlopeMap( PlayerObjects playerObjects )
{
csai = playerObjects.getCSAI();
aicallback = csai.aicallback;
logfile = playerObjects.getLogFile();
gameMap = aicallback.getMap();
this.playerObjects = playerObjects;
// movementMaps = playerObjects.getMovementMaps();
// heightMap = playerObjects.getHeightMap();
// playerObjects.getMaps() = playerObjects.getMaps();
playerObjects.getMainUI().registerButton( "Dump slopemap distribution",
new ButtonSlopeDistribution() );
}
class ButtonSlopeDistribution implements MainUI.ButtonHandler {
@Override
public void go() {
float[][]slopemap = GetSlopeMap();
logfile.WriteLine( "Slopemap distribution:" );
new MapHelper( playerObjects ).DumpMapDistribution( slopemap );
}
}
public float getSlopeAt( SlopeMapPos slopeMapPos ) {
GetSlopeMap();
return SlopeMap[slopeMapPos.x][slopeMapPos.y];
}
// ported from Spring's ReadMap.cpp by Hugh Perkins
private float[][]GetSlopeMap()
{
if( SlopeMap != null ) {
return SlopeMap;
}
int mapwidth = gameMap.getWidth();
int mapheight = gameMap.getHeight();
int slopemapwidth = mapwidth / granularity;
int slopemapheight = mapheight / granularity;
int squaresize = playerObjects.getMaps().getMovementMaps().SQUARE_SIZE; // jsut to save typing...
// float[][] heightmap = playerObjects.getMaps().getHeightMap().GetHeightMap();
HeightMap heightMap = playerObjects.getMaps().getHeightMap();
logfile.WriteLine( "Getting heightmap, this could take a while... " );
// ArrayIndexer heightmapindexer = new ArrayIndexer( mapwidth + 1, mapheight + 1 );
logfile.WriteLine("calculating slopes..." );
logfile.WriteLine("mapwidth: " + slopemapwidth + " " + slopemapheight);
SlopeMap = new float[ slopemapwidth][ slopemapheight ];
for(int y = 2; y < mapheight - 2; y+= 2)
{
for(int x = 2; x < mapwidth - 2; x+= 2)
{
// HeightMapPos heightMapPos = new HeightMapPos( x, y );
Float3 e1 = new Float3(
-squaresize * 4,
heightMap.getElevationAt( new HeightMapPos( x - 1, y - 1 ) )
- heightMap.getElevationAt( new HeightMapPos( x + 3, y - 1) ),
// heightmap[x - 1][ y - 1] - heightmap[x + 3][ y - 1]
0);
Float3 e2 = new Float3(
0,
heightMap.getElevationAt( new HeightMapPos( x - 1, y - 1 ) )
- heightMap.getElevationAt( new HeightMapPos( x - 1, y + 3) ),
// heightmap[x - 1][ y - 1] - heightmap[x - 1][ y + 3],
-squaresize * 4);
Float3 n=e2.Cross( e1 );
n.Normalize();
e1 = new Float3(
squaresize * 4,
heightMap.getElevationAt( new HeightMapPos( x + 3, y + 3 ) )
- heightMap.getElevationAt( new HeightMapPos( x - 1, y + 3) ),
// heightmap[x + 3][ y + 3] - heightmap[x - 1][ y + 3],
0);
e2 = new Float3(
0,
heightMap.getElevationAt( new HeightMapPos( x + 3, y + 3 ) )
- heightMap.getElevationAt( new HeightMapPos( x + 3, y - 1 ) ),
// heightmap[x + 3][ y + 3] - heightmap[x + 3][ y - 1],
squaresize * 4);
Float3 n2 = e2.Cross(e1);
n2.Normalize();
SlopeMap[ x / granularity][ y / granularity ]= 1 - ( n.y + n2.y ) * 0.5f;
}
}
logfile.WriteLine("... slopes calculated" );
return SlopeMap;
}
}
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