2部分问题在这里。我的for循环在这里遇到了一些麻烦。我的代码的基本思想是，每当调用checkX和checkY时，它们都会比较触摸的x和玩家的x，然后如果玩家x小于touchx，则它将玩家x递增1，直到玩家x等于触摸x。对于checky来说完全一样。一切正常，问题在于它永远不会停止。玩家只是继续沿着完全相同的路径前进。
这是球员职业
package com.gametest;
import java.util.concurrent.CopyOnWriteArrayList;
import com.gametest.GameSurfaceView.MyView;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
public class Player {
int ID;
static int x, y, width, height, widthEnd, currentFrame, boundsX, boundsY,
dirTimer, dir, simx, simy;
static Bitmap currentSprite, playerSprite, deathSprite;
static MyView mv;
public Player(MyView v, Bitmap orb, Bitmap explosion, int screenWidth,
int screenHeight) {
// TODO Auto-generated constructor stub
playerSprite = orb;
deathSprite = explosion;
currentSprite = playerSprite;
mv = v;
height = playerSprite.getHeight();
width = playerSprite.getWidth() / 3;
currentFrame = 1;
}
public static void sprite_draw(Canvas canvas,
CopyOnWriteArrayList<Sprite> copy) {
// TODO Auto-generated method stub
x = (mv.getWidth() / 2) - 50;
y = (mv.getHeight() / 2) - 50;
currentFrame = currentFrame + 1;
if (currentFrame > 3) {
currentFrame = 1;
}
widthEnd = (currentFrame * width) + width;
boundsX = x + width;
boundsY = y + height;
Rect src = new Rect(currentFrame * width, 0, widthEnd, height);
Rect dst = new Rect(x, y, boundsX, boundsY);
canvas.drawBitmap(currentSprite, src, dst, null);
for (Sprite s : copy) {
if (s.x + 50 > x && s.x + 50 < boundsX && s.y + 50 > y
&& s.y + 50 < boundsY) {
GameSurfaceView.damagePlayer();
};
}
}
public void checkX(Integer touchx) {
if (touchx > x) {
for (int newx = x; newx < touchx; newx++) {
GameSurfaceView.setDirection(1, 0);
try {
mv.t.sleep (10);
} catch (InterruptedException e) {
}
}
}
if (touchx < x ) {
for (int newx = x; newx > touchx; newx--) {
GameSurfaceView.setDirection(-1, 0);
try {
mv.t.sleep (10);
} catch (InterruptedException e) {
}
}
}
}
public void checkY(int touchy) {
if (touchy > y) {
for (int newy = y; newy < touchy; newy++) {
GameSurfaceView.setDirection(0, 1);
try {
mv.t.sleep (10);
} catch (InterruptedException e) {
}
}
}
if (touchy < y) {
for (int newy = y; newy > touchy; newy--) {
GameSurfaceView.setDirection(0, -1);
try {
mv.t.sleep (10);
} catch (InterruptedException e) {
}
}
}
}
}
如果这里需要的是表面视图类
package com.gametest;
import java.util.concurrent.CopyOnWriteArrayList;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnTouchListener;
public class GameSurfaceView extends Activity implements OnTouchListener {
double ran;
int touchX, touchY, screenWidth, screenHeight, objX, objY;
static boolean canUpdate;
static int enemyCount, score, playerHealth, test1, test2;
static MyView v;
static Bitmap orb, orb2, explosion;
static CopyOnWriteArrayList<Sprite> copy = new CopyOnWriteArrayList<Sprite>();
static String hpString;
static Player player;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
v = new MyView(this);
v.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent me) {
touchX = (int) me.getX();
touchY = (int) me.getY();
for (Sprite sprite : copy) {
sprite.checkTouch(touchX, touchY);
player.checkY(touchY);
player.checkX(touchX);
}
return true;
}
});
canUpdate = true;
screenWidth = v.getWidth();
screenHeight = v.getHeight();
playerHealth = 250;
hpString = "Health " + playerHealth;
ran = 0;
score = 0;
test1 = 5000;
test2 = 5000;
orb = BitmapFactory.decodeResource(getResources(), R.drawable.blue_orb);
orb2 = BitmapFactory.decodeResource(getResources(), R.drawable.red_orb);
explosion = BitmapFactory.decodeResource(getResources(), R.drawable.explosion);
player = new Player(v, orb2, explosion, screenWidth, screenHeight);
createEnemies();
setContentView(v);
}
private void createEnemies() {
if (enemyCount < 5) {
screenWidth = v.getWidth();
screenHeight = v.getHeight();
int listLength = copy.size();
copy.add(new Sprite(v, orb, explosion, screenWidth, screenHeight, listLength));
enemyCount = enemyCount + 1;
}
}
public static void checkECount(int id) {
canUpdate = false;
copy.remove(id);
enemyCount = enemyCount - 1;
int index = 0;
for(Sprite s : copy) {
s.ID = index;
index++;
}
score = score + 10;
canUpdate = true;
}
@Override
protected void onPause() {
super.onPause();
v.pause();
}
@Override
protected void onResume() {
super.onResume();
v.resume();
}
public class MyView extends SurfaceView implements Runnable {
Thread t = null;
SurfaceHolder holder;
boolean isItOk = false;
public MyView(Context context) {
super(context);
holder = getHolder();
}
@Override
public void run() {
while (isItOk == true) {
if (!holder.getSurface().isValid()) {
continue;
}
Canvas c = holder.lockCanvas();
if(canUpdate){
canvas_draw(c);
}
holder.unlockCanvasAndPost(c);
try {
t.sleep (50);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
protected void canvas_draw(Canvas canvas) {
canvas.drawARGB(255, 50, 10, 10);
String ranString = "Score " + score;
ran = Math.random() * 5;
String t = "max1" + test1;
String t2 = "max2" + test2;
if (ran > 3) {
createEnemies();
}
Paint paint = new Paint();
paint.setColor(Color.BLACK);
paint.setTextSize(15);
canvas.drawText(hpString, 10, 25, paint);
canvas.drawText(ranString, 10, screenHeight - 25, paint);
for (Sprite sprite : copy) {
sprite.sprite_draw(canvas);
}
Player.sprite_draw(canvas, copy);
}
public void pause() {
isItOk = false;
while (true) {
try {
t.join();
} catch (InterruptedException e) {
}
break;
}
t = null;
}
public void resume() {
isItOk = true;
t = new Thread(this);
t.start();
}
}
@Override
public boolean onTouch(View arg0, MotionEvent arg1) {
return false;
}
public static void damagePlayer() {
hpString = "Health " + playerHealth;
playerHealth = playerHealth - 5;
if(playerHealth<0){
hpString = "game over";
}
}
public static void setDirection(int i, int j) {
if(i == 0 && j == -1){
for(Sprite s: copy){
s.y++;
}
}
if(i == 0 && j == 1){
for(Sprite s: copy){
s.y--;
}
}
if(i == -1 && j == 0){
for(Sprite s: copy){
s.x++;
}
}
if(i == 1 && j == 0){
for(Sprite s: copy){
s.x--;
}
}
}
}
所以我的问题的第一部分是谁能告诉我为什么for循环不会停止循环。我的问题的第二部分是，如果玩家在到达第一个位置之前选择了一个不同的点，我该如何强制checkX和checkY方法重新启动。
最佳答案
检查并检查问题是否出在checkX和checkY函数中。 Integer是一个类，而int是原始类型，因此您不能执行Integer n = 1之类的操作，但是可以执行int n = 1。
public void checkX(int touchx)
public void checkY(int touchx)