project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/EngineProtocol/Scheme.java
branchhedgeroid
changeset 6047 10011f051f9c
child 6436 f1a42ba9cab2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/EngineProtocol/Scheme.java	Thu Oct 20 22:54:34 2011 +0200
@@ -0,0 +1,358 @@
+/*
+ * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game
+ * Copyright (c) 2011 Richard Deurwaarder <xeli@xelification.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; version 2 of the License
+ *
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+package org.hedgewars.hedgeroid.EngineProtocol;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedHashMap;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+
+import android.content.Context;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+public class Scheme implements Parcelable{
+
+	public static final String DIRECTORY_SCHEME = "schemes";
+
+	private String name;
+	//private ArrayList<Integer> basic;
+	private Integer gamemod;
+	private ArrayList<Integer> basic;;
+	private static ArrayList<LinkedHashMap<String, ?>> basicflags = new ArrayList<LinkedHashMap<String, ?>>();
+	
+	public Scheme(String _name, ArrayList<Integer> _basic, int _gamemod){
+		name = _name;
+		gamemod = _gamemod;
+		basic = _basic;
+
+	}
+	
+	public Scheme(Parcel in){
+		readFromParcel(in);
+	}
+
+	public void sendToEngine(EngineProtocolNetwork epn)throws IOException{ 
+		epn.sendToEngine(String.format("e$gmflags %d", gamemod));
+
+		for(int pos = 0; pos < basic.size(); pos++){
+			LinkedHashMap<String, ?> basicflag = basicflags.get(pos);
+			
+			String command = (String)basicflag.get("command");
+			Integer value = basic.get(pos);
+			Boolean checkOverMax = (Boolean) basicflag.get("checkOverMax");
+			Boolean times1000 = (Boolean) basicflag.get("times1000");
+			Integer max = (Integer) basicflag.get("max");
+			
+			if(checkOverMax && value >= max) value = max;
+			if(times1000) value *= 1000;
+			
+			epn.sendToEngine(String.format("%s %d", command, value));
+		}
+	}
+	public String toString(){
+		return name;
+	}
+
+
+	public static final int STATE_START = 0;
+	public static final int STATE_ROOT = 1;
+	public static final int STATE_NAME = 2;
+	public static final int STATE_BASICFLAGS = 3;
+	public static final int STATE_GAMEMOD = 4;
+	public static final int STATE_BASICFLAG_INTEGER = 5;
+	public static final int STATE_GAMEMOD_TRUE = 6;
+	public static final int STATE_GAMEMOD_FALSE = 7;
+
+	public static ArrayList<Scheme> getSchemes(Context c) throws IllegalArgumentException{
+		String dir = c.getFilesDir().getAbsolutePath() + '/' + DIRECTORY_SCHEME + '/';
+		String[] files = new File(dir).list(fnf);
+		if(files == null) files = new String[]{};
+		Arrays.sort(files);
+		ArrayList<Scheme> schemes = new ArrayList<Scheme>();
+
+		try {
+			XmlPullParserFactory xmlPullFactory = XmlPullParserFactory.newInstance();
+			XmlPullParser xmlPuller = xmlPullFactory.newPullParser();
+
+			for(String file : files){
+				BufferedReader br = new BufferedReader(new FileReader(dir + file), 1024);
+				xmlPuller.setInput(br);
+				String name = null;
+				ArrayList<Integer> basic = new ArrayList<Integer>();
+				Integer gamemod = 0;
+				int mask = 0x000000004;
+
+				int eventType = xmlPuller.getEventType();
+				int state = STATE_START;
+				while(eventType != XmlPullParser.END_DOCUMENT){
+					switch(state){
+					case STATE_START:
+						if(eventType == XmlPullParser.START_TAG && xmlPuller.getName().equals("scheme")) state = STATE_ROOT;
+						else if(eventType != XmlPullParser.START_DOCUMENT) throwException(file, eventType);
+						break;
+					case STATE_ROOT:
+						if(eventType == XmlPullParser.START_TAG){
+							if(xmlPuller.getName().equals("basicflags")) state = STATE_BASICFLAGS;
+							else if(xmlPuller.getName().toLowerCase().equals("gamemod")) state = STATE_GAMEMOD;
+							else if(xmlPuller.getName().toLowerCase().equals("name")) state = STATE_NAME;
+							else throwException(file, eventType);
+						}else if(eventType == XmlPullParser.END_TAG) state = STATE_START;
+						else throwException(xmlPuller.getText(), eventType);
+						break;
+					case STATE_BASICFLAGS:
+						if(eventType == XmlPullParser.START_TAG && xmlPuller.getName().toLowerCase().equals("integer")) state = STATE_BASICFLAG_INTEGER;
+						else if(eventType == XmlPullParser.END_TAG)	state = STATE_ROOT;
+						else throwException(file, eventType);
+						break;
+					case STATE_GAMEMOD:
+						if(eventType == XmlPullParser.START_TAG){
+							if(xmlPuller.getName().toLowerCase().equals("true")) state = STATE_GAMEMOD_TRUE;
+							else if(xmlPuller.getName().toLowerCase().equals("false")) state = STATE_GAMEMOD_FALSE;
+							else throwException(file, eventType);
+						}else if(eventType == XmlPullParser.END_TAG) state = STATE_ROOT;
+						else throwException(file, eventType);
+						break;
+					case STATE_NAME:
+						if(eventType == XmlPullParser.TEXT) name = xmlPuller.getText().trim();
+						else if(eventType == XmlPullParser.END_TAG) state = STATE_ROOT;
+						else throwException(file, eventType);
+						break;
+					case STATE_BASICFLAG_INTEGER:
+						if(eventType == XmlPullParser.TEXT) basic.add(Integer.parseInt(xmlPuller.getText().trim()));
+						else if(eventType == XmlPullParser.END_TAG) state = STATE_BASICFLAGS;
+						else throwException(file, eventType);
+						break;
+					case STATE_GAMEMOD_FALSE:
+						if(eventType == XmlPullParser.TEXT) gamemod <<= 1;
+						else if(eventType == XmlPullParser.END_TAG) state = STATE_GAMEMOD;
+						else throwException(file, eventType);
+						break;
+					case STATE_GAMEMOD_TRUE:
+						if(eventType == XmlPullParser.TEXT){
+							gamemod |= mask;
+							gamemod <<= 1;
+						}else if(eventType == XmlPullParser.END_TAG) state = STATE_GAMEMOD;
+						else throwException(file, eventType);
+						break;
+					}
+					eventType = getEventType(xmlPuller);
+				}//end while(eventtype != END_DOCUMENT
+				schemes.add(new Scheme(name, basic, gamemod));
+			}//end for(string file : files
+			return schemes;
+		} catch (XmlPullParserException e) {
+			e.printStackTrace();
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return new ArrayList<Scheme>();//TODO handle correctly
+	}
+	
+	private static FilenameFilter fnf = new FilenameFilter(){
+		public boolean accept(File dir, String filename) {
+			return filename.toLowerCase().startsWith("scheme_");
+		}
+	};
+
+	/**
+	 * This method will parse the basic flags from a prespecified xml file.
+	 * I use a raw xml file rather than one parsed by aatp at compile time
+	 * to keep it generic with other frontends, ie in the future we could 
+	 * use one provided by the Data folder.
+	 */
+	public static void parseBasicFlags(Context c){
+		String filename = String.format("%s/%s/basicflags", c.getFilesDir().getAbsolutePath(), DIRECTORY_SCHEME);
+
+		XmlPullParser xmlPuller = null;
+		BufferedReader br = null;
+		try {
+			XmlPullParserFactory xmlPullFactory = XmlPullParserFactory.newInstance();
+			xmlPuller = xmlPullFactory.newPullParser();
+			br = new BufferedReader(new FileReader(filename), 1024);
+			xmlPuller.setInput(br);
+
+			int eventType = getEventType(xmlPuller);
+			boolean continueParsing = true;
+			do{
+				switch(eventType){
+				
+				case XmlPullParser.START_TAG:
+					if(xmlPuller.getName().toLowerCase().equals("flag")){
+						basicflags.add(parseFlag(xmlPuller));
+					}else if(xmlPuller.getName().toLowerCase().equals("basicflags")){
+						eventType = getEventType(xmlPuller);
+					}else{
+						skipCurrentTag(xmlPuller);
+						eventType = getEventType(xmlPuller);
+					}
+					break;
+				case XmlPullParser.START_DOCUMENT://ignore all tags not being "flag"
+				case XmlPullParser.END_TAG:
+				case XmlPullParser.TEXT:
+				default:
+					continueParsing = true;
+				case XmlPullParser.END_DOCUMENT:
+					continueParsing = false;
+				}
+			}while(continueParsing);
+
+		}catch(IOException e){
+			e.printStackTrace();
+		}catch (XmlPullParserException e) {
+			e.printStackTrace();
+		}finally{
+			if(br != null)
+				try {
+					br.close();
+				} catch (IOException e) {}
+		}
+
+	}
+
+	/*
+	 * * Parses a Tag structure from xml as example we use
+	 *<flag>
+	 *   <checkOverMax>
+	 *       <boolean>false</boolean>
+	 *   </checkOverMax>
+	 *</flag>
+	 *
+	 * It returns a LinkedHashMap with key/value pairs
+	 */
+	private static LinkedHashMap<String, Object> parseFlag(XmlPullParser xmlPuller)throws XmlPullParserException, IOException{
+		LinkedHashMap<String, Object> hash = new LinkedHashMap<String, Object>();
+
+		int eventType = xmlPuller.getEventType();//Get the event type which triggered this method
+		if(eventType == XmlPullParser.START_TAG && xmlPuller.getName().toLowerCase().equals("flag")){//valid start of flag tag
+			String lcKey = null;
+			String lcType = null;
+			String value = null;
+
+			eventType = getEventType(xmlPuller);//<checkOverMax>
+			while(eventType == XmlPullParser.START_TAG){
+				lcKey = xmlPuller.getName();//checkOverMax
+				if(getEventType(xmlPuller) == XmlPullParser.START_TAG){//<boolean>
+					lcType = xmlPuller.getName().toLowerCase();
+					if(getEventType(xmlPuller) == XmlPullParser.TEXT){
+						value = xmlPuller.getText();
+						if(getEventType(xmlPuller) == XmlPullParser.END_TAG && //</boolean> 
+								getEventType(xmlPuller) == XmlPullParser.END_TAG){//</checkOverMax>
+							if(lcType.equals("boolean")) hash.put(lcKey, new Boolean(value));
+							else if(lcType.equals("string"))hash.put(lcKey, value);							
+							else if(lcType.equals("integer")){
+								try{
+									hash.put(lcKey, new Integer(value));
+								}catch (NumberFormatException e){
+									throw new XmlPullParserException("Wrong integer value in xml file");
+								}
+							}else{
+								throwException("basicflags", eventType);
+							}
+						}//</boolean> / </checkOverMax>
+					}//if TEXT
+				}//if boolean
+				eventType = getEventType(xmlPuller);//start new loop
+			}
+			eventType = getEventType(xmlPuller);//</flag>
+		}
+
+		return hash;
+	}
+
+	private static void skipCurrentTag(XmlPullParser xmlPuller) throws XmlPullParserException, IOException{
+		int eventType = xmlPuller.getEventType();
+		if(eventType != XmlPullParser.START_TAG)return;
+		String tag = xmlPuller.getName().toLowerCase();
+
+		while(true){
+			eventType = getEventType(xmlPuller);//getNext()
+			switch(eventType){
+			case XmlPullParser.START_DOCUMENT://we're inside of a start tag so START_ or END_DOCUMENT is just wrong
+			case XmlPullParser.END_DOCUMENT:
+				throw new XmlPullParserException("invalid xml file");
+			case XmlPullParser.START_TAG://if we get a new tag recursively handle it
+				skipCurrentTag(xmlPuller);
+				break;
+			case XmlPullParser.TEXT:
+				break;
+			case XmlPullParser.END_TAG:
+				if(!xmlPuller.getName().toLowerCase().equals(tag)){//if the end tag doesn't match the start tag
+					throw new XmlPullParserException("invalid xml file");
+				}else{
+					return;//skip completed	
+				}
+
+			}
+		}
+	}
+
+	/**
+	 * Skips whitespaces..
+	 */
+	private static int getEventType(XmlPullParser xmlPuller)throws XmlPullParserException, IOException{
+		int eventType = xmlPuller.next();
+		while(eventType == XmlPullParser.TEXT && xmlPuller.isWhitespace()){
+			eventType = xmlPuller.next();
+		}
+		return eventType;
+	}
+	private static void throwException(String file, int eventType){
+		throw new IllegalArgumentException(String.format("Xml file: %s malformed with error: %d.", file, eventType));
+	}
+
+	public int describeContents() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	public void writeToParcel(Parcel dest, int flags) {
+		dest.writeString(name);
+		dest.writeInt(gamemod);
+		dest.writeList(basic);
+		
+	}
+	
+	public void readFromParcel(Parcel src){
+		name = src.readString();
+		gamemod = src.readInt();
+		basic = src.readArrayList(ArrayList.class.getClassLoader());
+	}
+
+	public static final Parcelable.Creator<Scheme> CREATOR = new Parcelable.Creator<Scheme>() {
+		public Scheme createFromParcel(Parcel source) {
+			return new Scheme(source);
+		}
+		public Scheme[] newArray(int size) {
+			return new Scheme[size];
+		}
+		
+	};
+}