libgdx [TiledMap Objects]

坐标系问题：
libgdx 笛卡尔坐标系 原点坐标右下角
TiledMap 原点坐标左上角

package com.mygdx.game;import com.badlogic.gdx.Application;import com.badlogic.gdx.ApplicationAdapter;import com.badlogic.gdx.Gdx;import com.badlogic.gdx.Input;import com.badlogic.gdx.InputProcessor;import com.badlogic.gdx.assets.AssetManager;import com.badlogic.gdx.assets.loaders.resolvers.InternalFileHandleResolver;import com.badlogic.gdx.audio.Music;import com.badlogic.gdx.graphics.Color;import com.badlogic.gdx.graphics.GL20;import com.badlogic.gdx.graphics.OrthographicCamera;import com.badlogic.gdx.graphics.Texture;import com.badlogic.gdx.graphics.g2d.Animation;import com.badlogic.gdx.graphics.g2d.BitmapFont;import com.badlogic.gdx.graphics.g2d.Sprite;import com.badlogic.gdx.graphics.g2d.SpriteBatch;import com.badlogic.gdx.graphics.g2d.TextureAtlas;import com.badlogic.gdx.graphics.g2d.TextureRegion;import com.badlogic.gdx.graphics.glutils.ShapeRenderer;import com.badlogic.gdx.maps.MapLayer;import com.badlogic.gdx.maps.MapObject;import com.badlogic.gdx.maps.MapObjects;import com.badlogic.gdx.maps.MapProperties;import com.badlogic.gdx.maps.objects.EllipseMapObject;import com.badlogic.gdx.maps.objects.PolygonMapObject;import com.badlogic.gdx.maps.objects.RectangleMapObject;import com.badlogic.gdx.maps.tiled.TiledMap;import com.badlogic.gdx.maps.tiled.TiledMapRenderer;import com.badlogic.gdx.maps.tiled.TiledMapTileLayer;import com.badlogic.gdx.maps.tiled.TmxMapLoader;import com.badlogic.gdx.maps.tiled.objects.TiledMapTileMapObject;import com.badlogic.gdx.maps.tiled.renderers.IsometricTiledMapRenderer;import com.badlogic.gdx.maps.tiled.renderers.OrthogonalTiledMapRenderer;import com.badlogic.gdx.maps.tiled.tiles.AnimatedTiledMapTile;import com.badlogic.gdx.math.Ellipse;import com.badlogic.gdx.math.MathUtils;import com.badlogic.gdx.math.Polygon;import com.badlogic.gdx.math.Rectangle;import com.badlogic.gdx.math.Vector2;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.ImageButton;import com.badlogic.gdx.scenes.scene2d.ui.Label;import com.badlogic.gdx.scenes.scene2d.ui.Skin;import com.badlogic.gdx.scenes.scene2d.ui.Table;import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;import com.badlogic.gdx.utils.Align;import com.badlogic.gdx.utils.Array;import com.badlogic.gdx.utils.viewport.FitViewport;import com.badlogic.gdx.utils.viewport.ScreenViewport;import com.badlogic.gdx.utils.viewport.Viewport;import org.w3c.dom.css.Rect;public class MyGdxGame extends ApplicationAdapter {    private static final float SCALE = 0.2963f;    private static final int VIRTUAL_WIDTH = (int)(1920 * SCALE);    private static final int VIRTUAL_HEIGHT = (int)(1080 * SCALE);    private static final float CAMERA_SPEED = 100.0f;    private OrthographicCamera camera;    private Viewport viewport;    private SpriteBatch batch;    private TiledMap map;    private TmxMapLoader loader;    private OrthogonalTiledMapRenderer renderer;    private Vector2 direction;    private Array<Sprite> triggers;    private Music song;    @Override    public void create() {        camera = new OrthographicCamera();        viewport = new FitViewport(VIRTUAL_WIDTH, VIRTUAL_HEIGHT, camera);        batch = new SpriteBatch();        loader = new TmxMapLoader();        map = loader.load("data/maps/tiled/tiles.tmx");        renderer = new OrthogonalTiledMapRenderer(map, batch);        direction = new Vector2();        processMapMetadata();    }    @Override    public void dispose() {        map.dispose();        renderer.dispose();        batch.dispose();        song.dispose();    }    @Override    public void render() {        Gdx.gl.glClearColor(0.8f, 0.8f, 0.8f, 1.0f);        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);        updateCamera();        renderer.setView(camera);        renderer.render();        batch.begin();        for (Sprite trigger : triggers) {            trigger.draw(batch);        }        batch.end();    }    @Override    public void resize(int width, int height) {        viewport.update(width, height);    }    private void updateCamera() {        direction.set(0.0f, 0.0f);        int mouseX = Gdx.input.getX();        int mouseY = Gdx.input.getY();        int width = Gdx.graphics.getWidth();        int height = Gdx.graphics.getHeight();        if (Gdx.input.isKeyPressed(Input.Keys.LEFT) || (Gdx.input.isTouched() && mouseX < width * 0.25f)) {            direction.x = -20;        }        else if (Gdx.input.isKeyPressed(Input.Keys.RIGHT) || (Gdx.input.isTouched() && mouseX > width * 0.75f)) {            direction.x = 20;        }        if (Gdx.input.isKeyPressed(Input.Keys.UP) || (Gdx.input.isTouched() && mouseY < height * 0.25f)) {            direction.y = 20;        }        else if (Gdx.input.isKeyPressed(Input.Keys.DOWN) || (Gdx.input.isTouched() && mouseY > height * 0.75f)) {            direction.y = -20;        }        //direction.nor().scl(CAMERA_SPEED).scl(Gdx.graphics.getDeltaTime());;        camera.position.x += direction.x;        camera.position.y += direction.y;        TiledMapTileLayer layer = (TiledMapTileLayer)map.getLayers().get(0);        float cameraMinX = viewport.getWorldWidth() * 0.5f;        float cameraMinY = viewport.getWorldHeight() * 0.5f;        float cameraMaxX = layer.getWidth() * layer.getTileWidth() - cameraMinX;        float cameraMaxY = layer.getHeight() * layer.getTileHeight() - cameraMinY;        camera.position.x = MathUtils.clamp(camera.position.x, cameraMinX, cameraMaxX);        camera.position.y= MathUtils.clamp(camera.position.y, cameraMinY, cameraMaxY);        camera.update();    }    private void processMapMetadata() {        // Load music        String songPath = map.getProperties().get("music", String.class);        song = Gdx.audio.newMusic(Gdx.files.internal(songPath));        song.setLooping(true);        song.play();        // Load entities        System.out.println("Searching for game entities...\n");        triggers = new Array<Sprite>();        MapObjects objects = map.getLayers().get("objects").getObjects();        for (MapObject object : objects) {            String name = object.getName();            String[] parts = name.split("[.]");            TiledMapTileMapObject rectangleObject = (TiledMapTileMapObject)object;            TextureRegion textureRegion = rectangleObject.getTextureRegion();            System.out.println("Objectfound- textureRegion: " + textureRegion);            MapProperties mapProperties = object.getProperties();            int id = (Integer)mapProperties.get("gid");            System.out.println("Objectfound- gid: " + id);            Rectangle rectangle = new Rectangle();            rectangle.setX(Float.parseFloat(mapProperties.get("x").toString()));            float y = Float.parseFloat(mapProperties.get("y").toString());            rectangle.setY(y);            rectangle.setWidth(Float.parseFloat(mapProperties.get("width").toString()));            float height= Float.parseFloat(mapProperties.get("height").toString());            rectangle.setHeight(height);            System.out.println("Objectfound- y: " + y+ " heght:"+height);            System.out.println("Objectfound- name: " + name);            if (parts.length > 0 && parts[0].equals("trigger")) {                Sprite trigger = new Sprite(textureRegion);                //trigger.setColor(1.0f, 1.0f, 1.0f, 0.5f);                //trigger.setScale(rectangle.width, rectangle.height);                trigger.setPosition(rectangle.x, rectangle.y + height);                triggers.add(trigger);            }        }    }}

效果图：

tiles.tmx：

<?xml version="1.0" encoding="UTF-8"?><map version="1.0" orientation="orthogonal" renderorder="right-down" width="45" height="10" tilewidth="32" tileheight="32"> <properties>  <property name="music" value="data/music/song_1.mp3"/> </properties> <tileset firstgid="1" name="tukuai1" tilewidth="32" tileheight="32" spacing="1" margin="1">  <image source="tiles.png" width="512" height="256"/> </tileset> <layer name="块层 1" width="45" height="10">  <data encoding="csv">6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,21,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,23,21,22,51,51,51,81,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,81,81,51,51,51,51,51,51,51,51,51,51,51,51,51,81,81,81,51,51,51,22,23,21,22,51,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,51,22,23,21,22,51,22,46,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,48,22,51,22,23,21,22,51,22,76,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,78,22,51,22,23,21,22,51,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,51,22,23,21,22,51,51,51,81,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,81,81,51,51,51,51,51,51,51,51,51,51,51,51,51,81,81,81,51,51,51,22,23,21,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,23,36,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,38</data> </layer> <imagelayer name="图像图层 1" x="224" y="192">  <image source="1.png"/> </imagelayer> <objectgroup name="objects">  <object name="trigger.num1" gid="52" x="384" y="96" width="32" height="32"/>  <object name="trigger.num2" gid="52" x="384" y="256" width="32" height="32"/>  <object name="trigger.num3" gid="52" x="0" y="320" width="32" height="32"/>  <object name="trigger.num4" gid="52" x="0" y="32" width="32" height="32"/>  <object name="trigger.num5" gid="52" x="1408" y="32" width="32" height="32"/>  <object name="trigger.num6" gid="52" x="1408" y="320" width="32" height="32"/> </objectgroup></map>

tiles.png:

1.png: