Android游戏引擎libgdx使用教程14:TiledMap中视角完善与障碍物处理
Java代码
- package com.cnblogs.htynkn.game;
- import javax.swing.text.ZoneView;
- import javax.swing.text.html.MinimalHTMLWriter;
- import com.badlogic.gdx.ApplicationListener;
- import com.badlogic.gdx.Gdx;
- import com.badlogic.gdx.InputMultiplexer;
- import com.badlogic.gdx.InputProcessor;
- import com.badlogic.gdx.files.FileHandle;
- import com.badlogic.gdx.graphics.Color;
- import com.badlogic.gdx.graphics.GL10;
- import com.badlogic.gdx.graphics.OrthographicCamera;
- import com.badlogic.gdx.graphics.Texture;
- import com.badlogic.gdx.graphics.g2d.BitmapFont;
- import com.badlogic.gdx.graphics.g2d.SpriteBatch;
- import com.badlogic.gdx.graphics.g2d.TextureRegion;
- import com.badlogic.gdx.graphics.g2d.tiled.TileAtlas;
- import com.badlogic.gdx.graphics.g2d.tiled.TileMapRenderer;
- import com.badlogic.gdx.graphics.g2d.tiled.TileSet;
- import com.badlogic.gdx.graphics.g2d.tiled.TiledLayer;
- import com.badlogic.gdx.graphics.g2d.tiled.TiledLoader;
- import com.badlogic.gdx.graphics.g2d.tiled.TiledMap;
- import com.badlogic.gdx.graphics.g2d.tiled.TiledObject;
- import com.badlogic.gdx.graphics.g2d.tiled.TiledObjectGroup;
- import com.badlogic.gdx.graphics.glutils.ShaderProgram;
- import com.badlogic.gdx.math.MathUtils;
- import com.badlogic.gdx.math.Vector2;
- import com.badlogic.gdx.math.Vector3;
- import com.badlogic.gdx.scenes.scene2d.Actor;
- import com.badlogic.gdx.scenes.scene2d.Stage;
- import com.badlogic.gdx.scenes.scene2d.ui.Image;
- import com.badlogic.gdx.scenes.scene2d.ui.Label;
- import com.badlogic.gdx.scenes.scene2d.ui.Label.LabelStyle;
- public class JavaGame implements ApplicationListener, InputProcessor {
- Stage stage;
- float width;
- float height;
- private TiledMap map;
- private TileAtlas atlas;
- private TileMapRenderer tileMapRenderer;
- Image player;
- Vector3 camDirection = new Vector3(1, 1, 0);
- Vector2 maxCamPosition = new Vector2(0, 0);
- Vector3 moveVector = new Vector3(0, 0, 0);
- boolean isPress;
- TiledLayer nopassLayer;
- // Image image;
- @Override
- public void create() {
- final String path = "map/";
- final String mapname = "tilemap";
- FileHandle mapHandle = Gdx.files.internal(path + mapname + ".tmx");
- map = TiledLoader.createMap(mapHandle);
- for (int i = 0; i < map.layers.size(); i++) {
- if ("NoPass".equals(map.layers.get(i).name)) {
- nopassLayer = map.layers.get(i);
- // map.layers.remove(i);
- break;
- }
- }
- atlas = new TileAtlas(map, new FileHandle("map/"));
- tileMapRenderer = new TileMapRenderer(map, atlas, 10, 10);
- maxCamPosition.set(tileMapRenderer.getMapWidthUnits(), tileMapRenderer
- .getMapHeightUnits());
- width = Gdx.graphics.getWidth();
- height = Gdx.graphics.getHeight();
- stage = new Stage(width, height, true);
- Label label = new Label("FPS:", new LabelStyle(new BitmapFont(Gdx.files
- .internal("font/blue.fnt"),
- Gdx.files.internal("font/blue.png"), false), Color.WHITE),
- "fpsLabel");
- label.y = height - label.getPrefHeight();
- label.x = 0;
- stage.addActor(label);
- for (TiledObjectGroup group : map.objectGroups) {
- for (TiledObject object : group.objects) {
- if ("play1".equals(object.name)) {
- player = new Image(new TextureRegion(new Texture(Gdx.files
- .internal("map/player.png")), 0, 0, 27, 40));
- player.x = object.x;
- player.y = tileMapRenderer.getMapHeightUnits() - object.y; // map是左上角,Stage是左下角
- stage.addActor(player);
- }
- }
- }
- InputMultiplexer inputMultiplexer = new InputMultiplexer();
- inputMultiplexer.addProcessor(this);
- inputMultiplexer.addProcessor(stage);
- Gdx.input.setInputProcessor(inputMultiplexer);
- }
- @Override
- public void dispose() {
- // TODO Auto-generated method stub
- }
- @Override
- public void pause() {
- // TODO Auto-generated method stub
- }
- @Override
- public void render() {
- Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
- OrthographicCamera c = (OrthographicCamera) stage.getCamera();
- if (isPress) {
- CameraMove(moveVector, player);
- }
- ((Label) stage.findActor("fpsLabel")).setText("FPS: "
- + Gdx.graphics.getFramesPerSecond());
- stage.act(Gdx.graphics.getDeltaTime());
- tileMapRenderer.render(c);
- stage.draw();
- }
- private void CameraMove(Vector3 vector3, Actor mainActor) {
- boolean isCameraMove = true;
- boolean isActorMove = true;
- Vector2 pos = new Vector2(mainActor.x, mainActor.y);
- if (CheckMoveable(map, nopassLayer, vector3, pos)) {
- return;
- }
- if (CheckMoveable(map, nopassLayer, vector3, pos.cpy().add(
- mainActor.width, 0))) {
- return;
- }
- if (CheckMoveable(map, nopassLayer, vector3, pos.cpy().add(
- mainActor.width, mainActor.height))) {
- return;
- }
- if (CheckMoveable(map, nopassLayer, vector3, pos.cpy().add(0,
- mainActor.height))) {
- return;
- }
- Vector3 viewport = stage.getCamera().position.cpy();
- viewport = viewport.add(vector3);
- Vector3 zbound = new Vector3(width / 2, height / 2, 0).add(viewport);
- if (zbound.x > maxCamPosition.x || zbound.y > maxCamPosition.y) {
- isCameraMove = false;
- }
- Vector3 fbound = new Vector3(-width / 2, -height / 2, 0).add(viewport);
- if (fbound.x < 0 || fbound.y < 0) {
- isCameraMove = false;
- }
- Vector3 v3 = new Vector3(mainActor.x, mainActor.y, 0);
- stage.getCamera().project(v3);
- Vector3 a = v3.cpy().add(vector3);
- if (a.x > width || a.y > height) {
- isActorMove = false;
- }
- if (a.x < 0 || a.y < 0) {
- isActorMove = false;
- }
- if (isCameraMove) {
- stage.getCamera().position.add(vector3);
- for (Actor actor : stage.getActors()) {
- if (!actor.equals(player)) {
- actor.x += vector3.x;
- actor.y += vector3.y;
- }
- }
- }
- if (isActorMove) {
- player.x += vector3.x;
- player.y += vector3.y;
- }
- }
- private boolean CheckMoveable(TiledMap map, TiledLayer layer,
- Vector3 vector3, Vector2 playpos) {
- Vector3 pos = new Vector3(playpos.x, playpos.y, 0).add(vector3);
- int nopassId = 0;
- TileSet set = map.tileSets.get(map.tileSets.size() - 1);
- int masSize = set.firstgid + layer.tiles.length;
- for (int i = 0; i < masSize; i++) {
- if ("False".equals(map.getTileProperty(i, "Pass"))) {
- nopassId = i;
- Gdx.app.log("Find!", i + " ");
- break;
- }
- }
- int xid = MathUtils.ceilPositive(pos.x / map.tileWidth);
- int yid = MathUtils.ceilPositive(pos.y / map.tileWidth);
- if (layer.tiles[layer.tiles.length - yid][xid - 1] == nopassId) {
- return true;
- } else {
- return false;
- }
- }
- @Override
- public void resize(int width, int height) {
- // TODO Auto-generated method stub
- }
- @Override
- public void resume() {
- // TODO Auto-generated method stub
- }
- @Override
- public boolean keyDown(int keycode) {
- return false;
- }
- @Override
- public boolean keyTyped(char character) {
- // TODO Auto-generated method stub
- return false;
- }
- @Override
- public boolean keyUp(int keycode) {
- // TODO Auto-generated method stub
- return false;
- }
- @Override
- public boolean scrolled(int amount) {
- // TODO Auto-generated method stub
- return false;
- }
- private void ChangeDirect(int typeId) {
- switch (typeId) {
- case 1:
- moveVector.set(0, 1, 0);
- Gdx.app.log("方向变动", "向上");
- break;
- case 2:
- moveVector.set(0, -1, 0);
- Gdx.app.log("方向变动", "向下");
- break;
- case 3:
- moveVector.set(-1, 0, 0);
- Gdx.app.log("方向变动", "向左");
- break;
- case 4:
- moveVector.set(1, 0, 0);
- Gdx.app.log("方向变动", "向右");
- break;
- }
- }
- @Override
- public boolean touchDown(int x, int y, int pointer, int button) {
- Vector3 tmp = new Vector3(x, y, 0);
- stage.getCamera().unproject(tmp);
- float newx = tmp.x - player.x;
- float newy = tmp.y - player.y;
- if (newx > 0 && newy > 0) {
- if (newx > newy) {
- ChangeDirect(4);
- } else {
- ChangeDirect(1);
- }
- } else if (newx > 0 && newy < 0) {
- if (newx > -newy) {
- ChangeDirect(4);
- } else {
- ChangeDirect(2);
- }
- } else if (newx < 0 && newy > 0) {
- if (-newx > newy) {
- ChangeDirect(3);
- } else {
- ChangeDirect(1);
- }
- } else {
- if (-newx > -newy) {
- ChangeDirect(3);
- } else {
- ChangeDirect(2);
- }
- }
- isPress = true;
- return false;
- }
- @Override
- public boolean touchDragged(int x, int y, int pointer) {
- // TODO Auto-generated method stub
- return false;
- }
- @Override
- public boolean touchMoved(int x, int y) {
- // TODO Auto-generated method stub
- return false;
- }
- @Override
- public boolean touchUp(int x, int y, int pointer, int button) {
- isPress = false;
- Gdx.app.log("Info", "touchUp: x:" + x + " y: " + y + " pointer: "
- + pointer + " button: " + button);
- return false;
- }
- }