Android Open Source - Open-Android-Game Biome

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License

The source code is released under:

GNU General Public License

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Java Source Code

/* Biome.java - Class for describing biomes.
 * /*  www  .j av  a  2s.c o m*/
 * Copyright  2011 Open-Android-Game Group
 * Please see the file COPYING in this
 * distribution for license terms.
 */

package com.kylepaulsen.openAndroidGame;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.widget.Toast;

/*
 * This class is for describing biomes with lots of public vars...
 * It gets information from the world_map.jpg pixel data.
 */
public class Biome {
  Context con;
  double lat, lon;
  int lonPxl, latPxl;
  
  
  public Biome(Context context, double latitude, double longitude){
    this.con = context;
    this.lat = latitude;
    this.lon = longitude;
  }
  
  //This function will set a bunch of public vars to describe 
  //the current biome for the world generator.   
  public float[] anazlyze(){
    //get the corresponding pixel.
    this.lonPxl = lonToPxlX(this.lon);
    this.latPxl = latToPxlY(this.lat);
    
    //The options code is very important so make sure we read a correct pixel value.
    BitmapFactory.Options decodeOptions = new BitmapFactory.Options();
    decodeOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;
    
    //get the pixel color in the world map.

    //THIS IS PROBLY CAUSING MEMORY TO RUN OUT ON SOME PHONES! NEED TO FIGURE OUT HOW TO GET BIOME 
    //DATA FROM A SMALLER IMAGE OR ANOTHER WAY!!!
    //Bitmap world = BitmapFactory.decodeResource(con.getResources(), R.drawable.world_map, decodeOptions);
    //int landColor = world.getPixel(this.lonPxl, this.latPxl);
    //int red = Color.red(landColor);
    //int green = Color.green(landColor);
    //int blue = Color.blue(landColor);
    
    
    //Toast.makeText(con, "looking for pxl: "+this.lonPxl+", "+this.latPxl, Toast.LENGTH_LONG).show();
    //Toast.makeText(con, "Pxl rgb is: "+Color.red(landColor)+", "+Color.green(landColor)+", "+Color.blue(landColor), Toast.LENGTH_LONG).show();
    
    //get hsv
    float hsv[] = new float[3];
    //Color.RGBToHSV(red, green, blue, hsv);
    
    return hsv;
    //now if the h in hsv is between certain ranges, we have a biome.
    //we could also use r, g, b, s or v for something.
  }
  
  public int latToPxlY(double lat){
    //formula found in worldMapLatLongToPixel.txt
    return (int) (Math.floor(lat/-0.06698049772278683227848101265823) + 1351);
  }
  
  public int lonToPxlX(double lon){
    //formula found in worldMapLatLongToPixel.txt
    return (int) (Math.floor(lon/0.06657861654370824053452115812918) + 2697);
  }
}

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