我开始使用面向Android的Libgdx进行编程，我就在 让玩家正确移动的麻烦。我正在使用这种方法 触地得分，其中x和y坐标经过手机显示屏 坐标，但玩家在TiledMap中移动，即与不同 坐标，任何人都可以帮我构建方法的形式 玩家移动得当吗？方法代码如下。 应注意，播放器必须移动到播放的确切位置＆gt;在屏幕上
import com.badlogic.gdx.maps.tiled.TiledMapTileLayer.Cell;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input.Keys;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.maps.tiled.TiledMapTileLayer;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.math.Vector3;
import com.mygdx.game.screens.Play;
public class Player extends Sprite implements InputProcessor {
private Vector3 velocity=new Vector3();
private Vector3 touch = new Vector3 ();
private float speed = (60 * 2), gravity =0,increment;
private TiledMapTileLayer collisionLayer;
private boolean dragged;
private float deltaaux=0;
private String blockedKey = "bloqueado";
public Player (Sprite sprite,TiledMapTileLayer collisionLayer){
super(sprite);
this.collisionLayer = collisionLayer;
}
@Override
public void draw(Batch batch) {
// TODO Auto-generated method stub
update(Gdx.graphics.getDeltaTime());
super.draw(batch);
}
public void update (float delta){
deltaaux = delta;
//velocity.y -= gravity * delta;
//System.out.println("update y!!!");
//clamp velocity
if (velocity.y > speed)
velocity.y = speed;
else if (velocity.y < -speed)
velocity.y = -speed;
// save old position
float oldX = getX(), oldY = getY(), tileWidth = collisionLayer.getTileWidth(), tileHeight=collisionLayer.getTileHeight();
boolean collisionX = false, collisionY = false;
//move x
setX(getX() + velocity.x * delta);
if(velocity.x < 0){
System.out.println("velocity<0!!!");
//acima esquerda
collisionX = collisionLayer.getCell((int) (getX()/tileWidth), (int) ((getY() + getHeight())/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionX)
System.out.println ("colidiu acima esquerda");
//meio esquerda
if(!collisionX){
collisionX = collisionLayer.getCell((int) (getX()/tileWidth), (int) ((getY() + getHeight()/2)/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionX)
System.out.println ("colidiu meio esquerda");
}
//abaixo esquerda
if(!collisionX){
collisionX = collisionLayer.getCell((int)(getX()/tileWidth), (int)(getY()/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionX)
System.out.println ("colidiu abaixo esquerda");
}
}else if(velocity.x>0){
System.out.println("velocity.x >0");
//acima direita
collisionX = collisionLayer.getCell((int)((getX() + getWidth())/tileWidth), (int)((getY() + getHeight())/tileHeight)).getTile().getProperties().containsKey("bloqueado");
//meio direita
if(!collisionX)
collisionX = collisionLayer.getCell((int)((getX() + getWidth())/tileWidth), (int)((getY() + getHeight()/2)/tileHeight)).getTile().getProperties().containsKey("bloqueado");
//abaixo direita
if(!collisionX)
collisionX = collisionLayer.getCell((int)((getX() + getWidth())/tileWidth), (int)(getY()/tileHeight)).getTile().getProperties().containsKey("bloqueado");
}
//se colidir!!!
if(collisionX){
System.out.println("colidiu!!!");
setX(oldX);
velocity.x = 0;
}
setY(getY() + velocity.y * delta);
if(velocity.y< 0){
//abaixo esquerda
collisionY = collisionLayer.getCell((int)(getX()/tileWidth), (int)(getY()/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionY)
System.out.println ("colidiu abaixo esquerda");
//abaixo meio
if(!collisionY){
collisionY = collisionLayer.getCell((int)((getX() + getWidth()/2)/tileWidth), (int)(getY()/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionY)
System.out.println ("colidiu abaixo meio");
}
//abaixo direita
if(!collisionY){
collisionY = collisionLayer.getCell((int)((getX() + getWidth())/tileWidth), (int)(getY()/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionY)
System.out.println ("colidiu abaixo direita");
}
}else if(velocity.y>0){
//acima esquerda
collisionY = collisionLayer.getCell((int)(getX()/tileWidth), (int)((getY() + getHeight())/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionY)
System.out.println ("colidiu acima esquerda");
//acima meio
if(!collisionY){
collisionY = collisionLayer.getCell((int)((getX()+ getWidth()/2)/tileWidth), (int)((getY()+ getHeight())/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionY)
System.out.println ("colidiu acima meio");
}
//acima direita
if(!collisionY){
collisionY = collisionLayer.getCell((int)((getX()+getWidth())/tileWidth), (int)((getY()+getHeight())/tileHeight)).getTile().getProperties().containsKey("bloqueado");
if(collisionY)
System.out.println ("colidiu acima direita");
}
}
//se colidir!!!
if(collisionY){
System.out.println("colidiu y!!!");
setY(oldY);
velocity.y=0;
}
}
public Vector3 getvelocity() {
return velocity;
}
public void setvelocity(Vector3 velocity) {
this.velocity = velocity;
}
public float getspeed() {
return speed;
}
public void setspeed(float speed) {
this.speed = speed;
}
public float getgravity() {
return gravity;
}
public void setgravity(float gravity) {
this.gravity = gravity;
}
public TiledMapTileLayer getCollisionLayer() {
return collisionLayer;
}
public void setCollisionLayer(TiledMapTileLayer collisionLayer) {
this.collisionLayer = collisionLayer;
}
@Override
public boolean keyDown(int keycode) {
switch(keycode) {
case Keys.W:
break;
case Keys.A:
velocity.x = -speed;
break;
case Keys.D:
velocity.x = speed;
}
return true;
}
@Override
public boolean keyUp(int keycode) {
// TODO Auto-generated method stub
switch (keycode){
case Keys.A:
case Keys.D:
velocity.x = 0;
}
return true;
}
@Override
public boolean keyTyped(char character) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
//collisionLayer -> coordinates for TiledMap
//touch -> is a Vector3 for coordinates of screen
touch.set((screenX/collisionLayer.getTileWidth()),(screenY/collisionLayer.getTileHeight()),0);
setX((int) (touch.x / (collisionLayer.getTileWidth()))*collisionLayer.getTileWidth());
setY((int) (touch.y /(collisionLayer.getTileHeight()))*collisionLayer.getTileWidth());
return true;
}
@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {
// animationTime = 0;
return false;
}
@Override
public boolean touchDragged(int screenX, int screenY, int pointer) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean mouseMoved(int screenX, int screenY) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean scrolled(int amount) {
// TODO Auto-generated method stub
return false;
}
}