tank.java~1~

手机上一个坦克游戏

package demo;

import com.nokia.mid.ui.DirectGraphics;
import com.nokia.mid.ui.DirectUtils;
import java.util.Vector;
import java.io.IOException;
import java.io.PrintStream;
import javax.microedition.lcdui.*;
import net.jscience.util.MathFP;

public class Tank {

    public int ID; //坦克战场内标号
    public String userName; //坦克名称(用户名)
    public int speed; //射击的速率
    public int angle; //炮管的角度
    public int move; //还可以移动多少次
    public int life;
    public int attackRadius;
    public int missile_num = 1;
    public Vector properties; //携带的物品:导弹 0$物品的Id$物品的名字$攻击力$导弹个数$攻击范围$
    //物品：1$物品的Id$物品的名字$血$移动力$
    public int direction;
    public int grade; //梯度
    public int basicDamage;
    public boolean isEnemy;
    public Image img_l; //坦克的图片
    public int tank_x; //x坐标位置
    public int tank_y; //y坐标位置
    public static int z;
    public static int y;
    public static int TANK_VSCALE = 24;
    public static int TANK_HSCALE = 18;
    public BattleField battleCanvas; //场景
    //攻击力$导弹个数$攻击范围$移动力$
    private int INIT_LIFE;
    private int INIT_DEMAGE;
    private int INIT_MISSILE;
    private int INIT_ATTACKAREA;
    private int INIT_MOVE;
    public boolean USED_PRO; //一轮内是否已经用过物品，用过就不能再用。

    static final int t = MathFP.toFP("0.0174532");
    int k;
    int p;
    int o;
    int h;
    int n;
    int w;
    //炮管的始末点
    public int x1;
    public int y1;
    public int x2;
    public int y2;

    public Tank(BattleField battleCan, String tankName,
                int tankID, int move, int grade, int initDemage,
                int x, int y, int initLife, boolean isEnemy) {
        //tankID tankName tankPic move grade initLife initDamage
        speed = 0; //导弹的速率
        angle = 45; //炮管的角度
        INIT_LIFE = life = initLife;
        userName = tankName;
        //System.out.println("******** tankID *******" + tankID);
        try {
            img_l = Image.createImage("/demo/res/t_l_" + tankID + ".png");
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        this.isEnemy = isEnemy;
        //TANK_VSCALE = img_l.getHeight();
        //TANK_HSCALE = img_l.getWidth();
        tank_x = x; // 坦克中心点在屏幕上的坐标
        tank_y = y - TANK_VSCALE / 2;
        direction = x < 100 ? 1 : -1;
        INIT_MOVE = this.move = move;
        INIT_DEMAGE = basicDamage = initDemage;
        //System.out.println("basicDamage = " + basicDamage);
        INIT_ATTACKAREA = attackRadius = 12;
        this.grade = grade;
        battleCanvas = battleCan; //战场
        properties = new Vector();
        USED_PRO = false;
        /*addProperties("1$0$arale$10$100$"); // 1$物品的Id$物品的名字$血$移动力$
                 addProperties("1$1$bb$10$100$");
                 addProperties("1$2$dabao$10$100$");
                 addProperties("0$0$missile$0$2$0$"); */
        // 导弹 0$物品的Id$物品的名字$攻击力$导弹个数$攻击范围$
        //System.out.println("properties.size() = " + properties.size());
    }

    //用来确定炮管的两个坐标点
    //计算公式如下
    //x1 : 炮管开始x坐标x1 = k() + 9;
    //y1 : 炮管开始y坐标y1 = h() + 9;
    //x2 : 炮管末尾x坐标 x2 = x1 + 13  * cos(angle * t); // 13应该是炮管长度
    //y2 : 炮管末尾y坐标 y2 = y1 -  13 * sin(angle * t);
    /*public void getBarrelPosition() {
        //炮管的初始位置
        x1 = tank_x + 4;
        y1 = tank_y + 4;
        //根据角度g算出导弹发射装置的末尾位置，并保存到s,y2
        //先把角度g通toFP函数来转化为定点整数
        //t = toFP("0.0174532")
        //调用mul函数来对两个数进行乘法运算 k = 0.0174532*angle
        k = MathFP.mul(MathFP.toFP(angle), t);
        //cos(k)
        p = MathFP.cos(k);
        //sin(k)
        o = MathFP.sin(k);
        //toFP(13)
        h = MathFP.toFP(13);
        //toFP(x1)
        n = MathFP.toFP(x1);
        //toFP(y1)
        w = MathFP.toFP(y1);
        x2 = MathFP.toInt(MathFP.add(n, MathFP.mul(h, p)));
        if (direction == -1) {
            x2 = x2 - 2 * (x2 - x1); //相反方向
        }
        int i1 = MathFP.sub(w, MathFP.mul(h, o));
        y2 = MathFP.toInt(i1);
         }*/
    public void setInit() {
        move = INIT_MOVE;
        speed = 0;
        basicDamage = INIT_DEMAGE;
        attackRadius = INIT_ATTACKAREA;
        angle = 25;
        missile_num = 1; //导弹数目
        USED_PRO = false; //没有用过物品
        battleCanvas.route.removeAllElements();
        battleCanvas.route.addElement(new Integer(tank_x));
        battleCanvas.route.addElement(new Integer(tank_y));

        //System.out.println("D x = " + tank_x + " y = " + tank_y);
        //System.out.println("&&&&&&&&&&&&&&&&&&&&after init route size: " + battleCanvas.route.size() );

        /*//System.out.println("move: " + move);
                //System.out.println("basicDamage: " + basicDamage);
                //System.out.println("attackRadius: " + attackRadius);
                //System.out.println("move: " + move);*/
    }

    public void paint(Graphics g1) {
        if (direction == 1) { // 向右
            DirectGraphics dg = DirectUtils.getDirectGraphics(g1);
            dg.drawImage(img_l, tank_x - TANK_HSCALE / 2,
                         tank_y - TANK_VSCALE / 2, 20, 0x2000); //Image img, int x, int y, int anchor, int manipulation()FLIP_HORIZONTAL
        }
        else { // 向左
            g1.drawImage(img_l, tank_x - TANK_HSCALE / 2,
                         tank_y - TANK_VSCALE / 2,
                         Graphics.TOP | Graphics.LEFT); //0x2000, FLIP_HORIZONTAL
        }
    }

    //角度判断
    public void increaseAngle() {
        if (angle < 90) {
            angle++;
        }
    }

    //角度判断
    public void decreaseAngle() {
        if (angle > 0) {
            angle--;
        }
    }

    //用来向左判断
    public void moveLeft() {
        if (tank_x >= TANK_HSCALE / 2) {
            int temp = battleCanvas.map.getTankY(this);
            //System.out.println("temp = " + temp);
            if (temp == -1) {
            }
            else {
                if (temp == -2) { //掉下屏幕以下了
                    if (userName.equals(battleCanvas.userName)) {
                        tank_y = battleCanvas.screen_h;
                        tank_x = tank_x - TANK_HSCALE / 2;
                        battleCanvas.route.addElement(new Integer(tank_x));
                        battleCanvas.route.addElement(new Integer(tank_y));
                        battleCanvas.repaint(0, 0, battleCanvas.MAP_WIDTH,
                                             battleCanvas.screen_w);
                        HttpClientHolder httpClientHolder = new
                            HttpClientHolder();
                        httpClientHolder.WriteInt(37);
                        /*用户移动路径长度 Int(包括原点)
                            [ x Int
                            y Int ]
                         */
                        httpClientHolder.WriteInt(battleCanvas.route.size());
                        for (int jj = 0; jj < battleCanvas.route.size(); jj++) {
                            int cordi;
                            if (jj % 2 == 0) {
                                cordi = ( (Integer) battleCanvas.route.
                                         elementAt(jj)).
                                    intValue(); // x
                            }
                            else {
                                cordi = ( (Integer) battleCanvas.route.
                                         elementAt(jj)).
                                    intValue() +
                                    battleCanvas.now.TANK_VSCALE / 2; // y
                            }
                            httpClientHolder.WriteInt(cordi);
                        }
                        battleCanvas.route.removeAllElements();
                        battleCanvas.mHttpConnection.addSendMessage(
                            httpClientHolder);
                    }
                    //System.out.println("******** sleep to see ************");
                    try {
                        Thread.sleep(20L);
                    }
                    catch (InterruptedException ex) {
                    }
                    life = 0;
                    //System.out.println("******** begin to fade ***********");
                    battleCanvas.repaint(0, 0, battleCanvas.MAP_WIDTH,
                                         battleCanvas.screen_w);
                    battleCanvas.now = battleCanvas.nextTank();
                    battleCanvas.now.setInit();
                    if (battleCanvas.now.userName.equals(battleCanvas.userName)) {
                        battleCanvas.gameStatus = battleCanvas.GAME_VIEW;
                    }
                    else {
                        battleCanvas.gameStatus = battleCanvas.GAME_OTHERS;
                    }
                    return;

                }

                if (temp > tank_y) {
                    tank_x = tank_x - TANK_HSCALE / 2;
                }
                else {
                    tank_x--; //每一步移动1个象素
                }
                if (temp >
                    battleCanvas.screen_h * 3 / 4 - battleCanvas.SCREEN_Y &&