3
所以我在將一些問題在JPanel中全面移動時遇到了一些問題。現在它不是JPanel的問題或錯誤，我只是不能像應該那樣移動Snake。我知道問題出在哪裏，但我無法想出一個辦法讓它在沒有問題的情況下正常工作。將蛇的身體全部移動導致身體結塊
問題：Snake被認爲距離彼此大約10 px，但是它正在聚集成大約彼此相距1 px。
這是它應該看起來如何。
這是它的外觀時，它叢叢了
我都試過，我能想到的幾種不同的方式，我有它的工作好幾天。
蛇應該保持在1px的速度運動，所以它是流暢的動畫。無論如何，頭部無需受到影響。但是一旦迴路碰到頭部，就會找到頭部的位置，並將位置提供給身體。
移動的蛇。
int playerVel = 1;
public void MovePlayer(){
//Move the snake tail
if(IsMoving()){
//Move the head by its velocity
if(left){
X[0] -= playerVel;
}
else if(right){
X[0] += playerVel;
}
else if(up){
Y[0] -= playerVel;
}
else if(down){
Y[0] += playerVel;
}
for(int i = getSizeWithArmor(); i > 0; i--){
//Issue is when the for loop finishes counting down it located the Head's position that is 1 px away, and the rest of the body clumps up to it.
int newLocX = X[i] - X[i-1];
int newLocY = Y[i] - Y[i-1];
if(newLocX != 0){
if(newLocX == 10 || newLocX == -10){
X[i] = X[i-1];
}
else if(newLocX > 0){
X[i] = X[i-1] + 10;
}
else if(newLocX < 0){
X[i] = X[i-1] - 10;
}
else{
X[i] = X[i-1];
}
}
if(newLocY != 0){
if(newLocY == 10 || newLocY == -10){
Y[i] = Y[i-1];
}
else if(newLocY > 0){
Y[i] = Y[i-1] + 10;
}
else if(newLocY < 0){
Y[i] = Y[i-1] - 10;
}
else{
Y[i] = Y[i-1];
}
}
}
}
}
編輯1：
任何幫助將不勝感激！如果我需要添加更多的細節，請隨時讓我知道！
編輯2：
Move X[0] X[1] X[2] X[3] X[4] X[5]
-----------------------------------------------------
1 60 50 40 30 20 10
2 61 51 41 31 21 11
3 62 52 42 32 22 12
4 63 53 43 33 23 13
5 64 54 44 34 24 14
6 65 55 45 35 25 15
7 66 56 46 36 26 16
8 67 57 47 37 27 17
就是我看要怎樣做。但隨着蛇越來越長，它必須適應。
編輯3：
這裏是整個類的播放器。玩家階層負責所有的移動，並對齊自己。
級的球員：
public class Player implements Runnable{
//Info about the Player
private int[] X;
private int[] Y;
private int[] size;
private int blockPickup;
private int points;
private int armor;
private int blockSize = 10;
//Speeds
private int playerVel = 1;
private int speedDelay = 100;
//Direction the player is moving
private boolean up = false;
private boolean down = false;
private boolean right = false;
private boolean left = false;
private boolean inGame = false;
private boolean gamePaused = false;
private int boardWidth;
private int boardHeight;
private int allSpaces;
public void AddBlock(){
size = new int[getSizeWithArmor() + 1];
points++;
blockPickup++;
}
private void AddBlock(int increase){
size = new int[getSizeWithArmor() + increase];
points++;
}
public void AddArmor(){
armor++;
AddBlock(1);
}
public void RemoveArmor(){
armor--;
size = new int[getSizeWithArmor() - 1];
}
public int getArmor(){
return armor;
}
public int getSizeWithArmor(){
return size.length;
}
public int getSizeWithoutArmor(){
return size.length - armor;
}
public void ResetSize(){
size = new int[1 + getArmor()];
}
public int getPoints(){
return points;
}
public void IsGamePlaying(boolean playing){
inGame = playing;
}
public void IsGamePaused(boolean pause){
gamePaused = pause;
}
public void Reset(){
points = 0;
armor = 0;
blockPickup = 0;
ResetSize();
InitPlayer();
}
public Image Head(){
if(up){
return headUp;
}
else if(down){
return headDown;
}
else if(right){
return headRight;
}
else if(left){
return headLeft;
}
else{
return headRight;
}
}
public void InitPlayer(){
for(int i = 0; i <= getSizeWithArmor(); i++){
X[i] = (boardWidth/2) - (i * blockSize);
Y[i] = boardHeight/2;
}
}
public void SetDirection(int key){
if(key == KeyEvent.VK_UP && !down){
up = true;
left = false;
down = false;
right = false;
}
else if(key == KeyEvent.VK_DOWN && !up){
up = false;
left = false;
down = true;
right = false;
}
else if(key == KeyEvent.VK_LEFT && !right){
up = false;
left = true;
down = false;
right = false;
}
else if(key == KeyEvent.VK_RIGHT && !left){
up = false;
left = false;
down = false;
right = true;
}
}
public void MovePlayer(){
//Move the snake tail
if(IsMoving()){
//Move the head by its velocity
for(int i = getSizeWithArmor(); i > 0; i--){
int newLocX = X[i] - X[i-1];
int newLocY = Y[i] - Y[i-1];
//Block going left
if(newLocX > 0){
if(newLocX == -1){
}
else if(newLocX < -1){
X[i] = X[i-1] + 10;
}
}
//Block going right
else if(newLocX < 0){
X[i] = X[i-1] - 10;
}
//Block going up
if(newLocY > 0){
Y[i] = Y[i-1] + 10;
}
//Block going down
else if(newLocY < 0){
Y[i] = Y[i-1] - 10;
}
}
if(left){
X[0] -= playerVel;
}
else if(right){
X[0] += playerVel;
}
else if(up){
Y[0] -= playerVel;
}
else if(down){
Y[0] += playerVel;
}
}
}
public boolean IsMoving(){
if(up || down || left || right){
return true;
}
else{
return false;
}
}
public int getX(int i){
return X[i];
}
public int getY(int i){
return Y[i];
}
public void paint(Graphics2D g){
for(int i = 0; i < getSizeWithArmor(); i++){
if(i == 0){
g.drawImage(Head(), X[0], Y[0], null);
}
else if(getArmor() >= i){
g.drawImage(armorImage, X[i], Y[i], null);
}
else{
g.setColor(Color.YELLOW);
g.fillRect(X[i], Y[i], blockSize, blockSize);
}
}
}
@Override
public void run() {
try{
while(inGame){
if(!gamePaused){
MovePlayer();
Thread.sleep(20);
}
}
}
catch(Exception e){
System.err.println("Player has encoundered an error: "+e.getMessage());
}
}
}
我Board類調用所有進行修改，這個類所需要的數據。如果這個班非常無組織，我很抱歉。我沒有回去重新組織它，並減少了很多垃圾。另外我知道很多代碼是多餘的，不需要。我正在解決所有這些問題。現在我只是想解決蛇的身體問題。
編輯4：
我已經想通了一部分。我已經順利地向右下方動畫。然而，一旦你離開或上升，它將會發生碰撞，並開始再次注意問題。它就像我需要檢查它是否在之前和向哪個方向移動。
public void MovePlayer(){
//Move the snake tail
if(IsMoving()){
//Move the head by its velocity
for(int i = getSizeWithArmor(); i > 0; i--){
int newLocX = X[i] - X[i-1];
int newLocY = Y[i] - Y[i-1];
//Figure out the last direction it was going in
if(newLocX != 0 && newLocY != 0){
}
//Block going left
if(newLocX > 0){
if(newLocX > 0 && newLocX <= 10){
X[i] -= 1;
}
else if(newLocX > 10){
X[i] = X[i-1] - 10;
}
}
//Block going right
else if(newLocX < 0){
if(newLocX < 0 && newLocX >= -10){
X[i] += 1;
}
else if(newLocX < -10){
X[i] = X[i-1] + 10;
}
}
//Block going up
else if(newLocY > 0){
if(newLocY == 1){
Y[i] -= 1;
}
else if(newLocY > 1){
Y[i] = Y[i-1] - 10;
}
}
//Block going down
else if(newLocY < 0){
if(newLocY < 0 && newLocY >= -10){
Y[i] += 1;
}
else if(newLocY < -10){
Y[i] = Y[i-1] + 10;
}
}
if(left){
X[0] -= playerVel;
}
else if(right){
X[0] += playerVel;
}
else if(up){
Y[0] -= playerVel;
}
else if(down){
Y[0] += playerVel;
}
}
}
@TomSmilack即使我確實將環路改爲類似的東西，頭部並不需要受到影響，因爲它正在被移動。但是一旦迴路碰到頭部，就會找到頭部的位置，並在頭部被放置之前將位置提供給身體。 – Twister1002
你說得對，我沒有仔細閱讀其餘部分。 –
添加一個[SSCCE]（http://sscce.org），你將得到更快的幫助，你的循環也應該像'for（int i = getSizeWithArmor（）; i> = 0; i - ）'和不是'for（int i = getSizeWithArmor（）; i> 0; i - ）'因爲這永遠不會檢查數組的第一個值，即'array [0]' –