📄 resourcemanager.java
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//------------------------------------------------------------------------------
// COPYRIGHT 2007 GUIDEBEE
// ALL RIGHTS RESERVED.
// GUIDEBEE CONFIDENTIAL PROPRIETARY
///////////////////////////////////// REVISIONS ////////////////////////////////
// Date Name Tracking # Description
// --------- ------------------- ---------- --------------------------
// 15JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////////
//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in all
//copies or substantial portions of the Software.
//
//The Software shall be used for Good, not Evil.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//SOFTWARE.
//Any questions, feel free to drop me a mail at james.shen@guidebee.biz.
//--------------------------------- PACKAGE ------------------------------------
package com.pstreets.game.battlecity;
//--------------------------------- IMPORTS ------------------------------------
import java.io.*;
import java.util.*;
import javax.microedition.media.*;
import javax.microedition.lcdui.*;
//[------------------------------ MAIN CLASS ----------------------------------]
////////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ----------------------------------
// Date Name Tracking # Description
// -------- ------------------- ------------- --------------------------
// 15JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////////
/**
* Resource Manager.A Singleton class used to mananger images and wav/midi
* resources.
* <p>
* <hr><b>© Copyright 2008 Guidebee, Inc. All Rights Reserved.</b>
* @version 1.00, 15/01/08
* @author Guidebee, Inc.
*/
public class ResourceManager {
/**
* the maximum game level.
*/
public static final int MAX_GAME_LEVEL=50;
/**
* game level index, for simplicity ,the game use chinese character as
* the battle field setting.
*/
public static int[] gameLevels=new int[MAX_GAME_LEVEL];
/**
* The width/height of each tile.
*/
public static final int TILE_WIDTH=12;
/**
* Bonus images.
*/
public static final int BONUS=0;
/**
* Explode images.
*/
public static final int EXPLODE=1;
/**
* Bullet images.
*/
public static final int BULLET=2;
/**
* Player tank images.
*/
public static final int PLAYER=3;
/**
* Enemy tank images.
*/
public static final int ENEMY=4;
/**
* Splash screen
*/
public static final int SPLASH=10;
/**
* Score screen
*/
public static final int SCORE_SCREEN=11;
/**
* First player tanks.
*/
public static final int IP=12;
/**
* Level
*/
public static final int FLAG=13;
/**
* enemy tanks icon in score bar.
*/
public static final int ENEMY_ICON=14;
/**
* white numbers.
*/
public static final int NUMBER_WHITE=15;
/**
* red numbers.
*/
public static final int NUMBER_RED=16;
/**
* Big game over image
*/
public static final int GAME_OVER_BIG=17;
/**
* small game over image
*/
public static final int GAME_OVER_SMALL=18;
/**
* small numbers for scores.
*/
public static final int SCORE=19;
/**
* game pause
*/
public static final int PAUSE=20;
/**
* numbers in black.
*/
public static final int NUMBER_BLACK=21;
/**
* Stage image
*/
public static final int STAGE=22;
/**
* turn on sound
*/
public static final int TURN_SOUND=23;
/**
* game help
*/
public static final int GAME_HELP=27;
/**
* Guidebee logo
*/
public static final int GUIDEBEE_LOGO=28;
/**
* playing sound ?
*/
public static boolean isPlayingSound=false;
/**
* Score board sound.
*/
public static final int SCORE_SOUND=1;
/**
* Open game sound
*/
public static final int OPEN_SOUND=2;
/**
* Game over sound
*/
public static final int GAMEOVER_SOUND=0;
/**
* Explode sound.
*/
public static final int EXPLODE_SOUND=4;
/**
* Shooting sound index.
*/
public static final int SHOOT_SOUND=3;
/**
* current visiable screen.
*/
public static Displayable currentScreen=null;
/**
* the display object.
*/
public static Display theDisplay=null;
//here using static object to avoid creating screen object each time.
/**
* the start screen object.
*/
public static StartScreen startScreen=null;
/**
* the splash screen object.
*/
public static SplashScreen splashScreen=null;
/**
* the game scene object.
*/
public static GameScene gameScene=null;
/**
* the score board screen object.
*/
public static ScoreScreen scoreScreen=null;
/**
* the game over screen.
*/
public static GameoverScreen gameoverScreen=null;
/**
* the stage screen.
*/
public static StageScreen stageScreen=null;
/**
* current game level.
*/
public static int gameLevel=1;
/**
* the highest score.
*/
public static int highScore=20000;
/**
* Singleton instance
*/
private static ResourceManager instance=new ResourceManager();
/**
* image array.
*/
private static Image[]imageResources=new Image[29];
/**
* tile image
*/
private static Image tileImage=null;
/**
* sound data
*/
private static byte[][]soundResouces=new byte[5][];
/**
* Sound player object.
*/
private static Player player=null;
/**
* load image and sound resouces
*/
static{
try{
int imageIndex=0;
for(int i=1;i<=5;i++){
String fileName="/img" +i;
InputStream is =instance.getClass().getResourceAsStream(fileName);
DataInputStream dis=new DataInputStream(is);
while(dis.available()>0){
int pngLength=dis.readInt();
byte []buffer=new byte[pngLength];
dis.read(buffer);
imageResources[imageIndex++]=Image.createImage(buffer,
0,pngLength);
}
dis.close();
is.close();
}
imageResources[GUIDEBEE_LOGO]=Image.createImage(instance.getClass().
getResourceAsStream("/guidebee.png"));
tileImage=Image.createImage(72,TILE_WIDTH/2);
Graphics g=tileImage.getGraphics();
int imgWidth=0;
for(int i=5;i<10;i++){
g.drawImage(imageResources[i],imgWidth,0,0);
imgWidth+=imageResources[i].getWidth();
}
for(int i=5;i<10;i++){
imageResources[i]=null;
}
System.gc();
for(int i=1;i<=5;i++){
String fileName="/snd" +i;
InputStream is =instance.getClass().getResourceAsStream(fileName);
int sndLength=is.available();
soundResouces[i-1]=new byte[sndLength];
is.read(soundResouces[i-1]);
is.close();
}
System.gc();
}catch(IOException e){
System.out.println("Error reading resources");
}
//initialize the game index
Random rnd=new Random();
for(int i=0;i<MAX_GAME_LEVEL;i++){
gameLevels[i]=Math.abs(rnd.nextInt()) % 6840;
}
//guidebee soft.
gameLevels[1]=3384;
gameLevels[2]=1810;
gameLevels[3]=821;
gameLevels[4]=2428;
gameLevels[5]=1317;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 17JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* set an new screen.
*/
public static void setCurrentScreen(Displayable newScreen){
currentScreen=newScreen;
theDisplay.setCurrent(currentScreen);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 17JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Get the tile image.
* @return the battle field tile image.
*/
public Image getTileImage(){
return tileImage;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 17JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Get image resource.
* @param index the image resource index.
* @return the image.
*/
public Image getImage(int index){
return imageResources[index];
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 17JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Play sound.
* @param type the sound type.
*/
public static void playSound(int type){
ByteArrayInputStream inputstream;
String soundType="audio/midi";
if(type>2) {
soundType="audio/x-wav";
return;
}
try{
inputstream=new ByteArrayInputStream(soundResouces[type]);
if(player!=null){
player.close();
}
player = Manager.createPlayer(inputstream, soundType);
player.start();
} catch(Exception e){
System.out.println("No wav");
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 15JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Get an unique instance of resource manager.
* @return an instance of resource manager.
*/
public static ResourceManager getInstance(){
return instance;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 15JAN2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* private constructor to avoid to be instnaced directly.
*/
private ResourceManager(){
}
}
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