地图对于游戏场景十分重要，很多游戏都需要对地图进行编辑，可使用TileMap进行编辑并生成对应的tmx格式地图文件。
编辑好后，可通过TmxMapLoader来读取地图文件。可通过一个正交相机OthographicCamera和正交地图渲染器OrthogonalTiledMapRenderer来进行显示。
实例如下：
1 package com.fxb.newtest;
2
3 import com.badlogic.gdx.ApplicationAdapter;
4 import com.badlogic.gdx.Gdx;
5 import com.badlogic.gdx.Input;
6 import com.badlogic.gdx.graphics.GL10;
7 import com.badlogic.gdx.graphics.OrthographicCamera;
8 import com.badlogic.gdx.graphics.Texture;
9 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
10 import com.badlogic.gdx.graphics.g2d.TextureRegion;
11 import com.badlogic.gdx.maps.MapLayer;
12 import com.badlogic.gdx.maps.objects.RectangleMapObject;
13 import com.badlogic.gdx.maps.tiled.TiledMap;
14 import com.badlogic.gdx.maps.tiled.TiledMapTileLayer;
15 import com.badlogic.gdx.maps.tiled.TmxMapLoader;
16 import com.badlogic.gdx.maps.tiled.renderers.OrthogonalTiledMapRenderer;
17 import com.badlogic.gdx.scenes.scene2d.InputEvent;
18 import com.badlogic.gdx.scenes.scene2d.InputListener;
19 import com.badlogic.gdx.scenes.scene2d.Stage;
20 import com.badlogic.gdx.scenes.scene2d.ui.Image;
21
22 public class Lib010_TiledMap extends ApplicationAdapter{
23
24 TiledMap map;
25 OrthogonalTiledMapRenderer renderer;
26 OrthographicCamera camera;
27 TextureRegion regionPurple;
28 TextureRegion regionBlue;
29 TextureRegion regionGreen;
30
31 TiledMapTileLayer layer1;
32
33 Stage stage;
34 Image imgGreen;
35
36 enum StateX{ move_still, move_right, move_left };
37 enum StateY{ move_still, move_up, move_down };
38
39 StateX stateX = StateX.move_still;
40 StateY stateY = StateY.move_still;
41
42 float clicktimeX = 0;
43 float clicktimeY = 0;
44 float currentTime = 0;
45
46 @Override
47 public void create() {
48 // TODO Auto-generated method stub
49
50 map = new TmxMapLoader().load( "map1/test1.tmx" );
51 renderer = new OrthogonalTiledMapRenderer( map );
52 stage = new Stage( Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), false, renderer.getSpriteBatch() );
53
54 regionPurple = new TextureRegion( new Texture( Gdx.files.internal( "map1/bullet_purple_32.png" ) ) );
55 regionBlue = new TextureRegion( new Texture( Gdx.files.internal( "map1/bullet_blue_32.png" ) ) );
56 regionGreen = new TextureRegion( new Texture( Gdx.files.internal( "map1/bullet_green_32.png" ) ) );
57
58 camera = new OrthographicCamera( 32*30, 32*12 );
59 //camera.setToOrtho( false, 32*30, 32*12 );
60 camera.position.set( 32*30/2, 32*12/2, 0 );
61 camera.update();
62
63 layer1 = (TiledMapTileLayer)map.getLayers().get(0);
64 MapLayer layer2 = map.getLayers().get(1);
65
66 System.out.println( layer1.getName()+"\n"+layer2.getName() );
67
68 int count = layer2.getObjects().getCount();
69 System.out.println(count);
70 for( int i=0; i<count; ++i ){
71 RectangleMapObject obj = (RectangleMapObject)layer2.getObjects().get(i);
72 String strName = obj.getName();
73
74
75 if( strName != null ){
76 System.out.print( strName+"\t" );
77 if( obj.getProperties() != null ){
78 if( obj.getProperties().get("level")!=null ){
79 String strProperty = obj.getProperties().get("level").toString();
80 System.out.println( strProperty );
81
82 float x = obj.getRectangle().getX();
83 float y = obj.getRectangle().getY();
84 //System.out.println( x/32+","+y/32 );
85 Image tempImg = new Image( regionPurple );
86 tempImg.setSize( 32, 32 );
87 tempImg.setPosition( x, y );
88 stage.addActor( tempImg );
89 }
90 else if( obj.getProperties().get("time")!=null ){
91 float x = obj.getRectangle().getX();
92 float y = obj.getRectangle().getY();
93 //System.out.println( x/32+","+y/32 );
94 Image tempImg = new Image( regionBlue );
95 tempImg.setSize( 32, 32 );
96 tempImg.setPosition( x, y );
97 stage.addActor( tempImg );
98 }
99
100 }
101
102
103 }
104 }
105
106
107 imgGreen = new Image( regionGreen );
108 imgGreen.setSize( 32, 32 );
109 stage.addActor( imgGreen );
110 imgGreen.setPosition( 0, 0 );
111
112 stage.addListener(new InputListener(){
113 @Override
114 public boolean keyDown(InputEvent event, int keycode) {
115 // TODO Auto-generated method stub
116 if( keycode == Input.Keys.UP ){
117 //imgGreen.translate( 0, 32 );
118 stateY = StateY.move_up;
119 MoveY();
120 clicktimeY = currentTime;
121 //state = State.move_still;
122 }
123 else if( keycode == Input.Keys.DOWN ){
124 //imgGreen.translate( 0, -32 );
125 stateY = StateY.move_down;
126 MoveY();
127 clicktimeY = currentTime;
128 //state = State.move_still;
129 }
130
131 if( keycode == Input.Keys.LEFT ){
132 //imgGreen.translate( -32, 0 );
133 stateX = StateX.move_left;
134 MoveX();
135 clicktimeX = currentTime;
136 //state = State.move_still;
137 }
138 else if( keycode == Input.Keys.RIGHT ){
139 //imgGreen.translate( 32, 0 );
140 stateX = StateX.move_right;
141 MoveX();
142 clicktimeX = currentTime;
143 //state = State.move_still;
144 }
145 return true;
146 }
147
148 @Override
149 public boolean keyUp(InputEvent event, int keycode) {
150 // TODO Auto-generated method stub
151 if( keycode == Input.Keys.UP ){
152 //imgGreen.translate( 0, 32 );
153 stateY = StateY.move_still;
154 }
155 else if( keycode == Input.Keys.DOWN ){
156 //imgGreen.translate( 0, -32 );
157 stateY = StateY.move_still;
158 }
159
160 if( keycode == Input.Keys.LEFT ){
161 //imgGreen.translate( -32, 0 );
162 stateX = StateX.move_still;
163 }
164 else if( keycode == Input.Keys.RIGHT ){
165 //imgGreen.translate( 32, 0 );
166 stateX = StateX.move_still;
167 }
168 return true;
169 }
170
171
172 });
173
174 Gdx.input.setInputProcessor( stage );
175 }
176
177 public void MoveX(){
178 float x0 = imgGreen.getX();
179 float y0 = imgGreen.getY();
180 int x1 = 0, y1 = 0;
181 int x2 = 0, y2 = 0;
182 int x3 = 0, y3 = 0;
183
184 float speed = 2;
185
186 switch( stateX ){
187 case move_right:
188 imgGreen.translate( speed, 0 );
189 x1 = (int)( (imgGreen.getX()+31)/32 );
190 x2 = x3 = x1;
191
192 y1 = (int)( (imgGreen.getY()+1)/32 );
193 y2 = (int)( (imgGreen.getY()+15)/32 );
194 y3 = (int)( (imgGreen.getY()+31)/32 );
195 break;
196 case move_left:
197 imgGreen.translate( -speed, 0 );
198 x1 = (int)( (imgGreen.getX()+1)/32 );
199 x2 = x3 = x1;
200
201 y1 = (int)( (imgGreen.getY()+1)/32 );
202 y2 = (int)( (imgGreen.getY()+15)/32 );
203 y3 = (int)( (imgGreen.getY()+31)/32 );
204 break;
205 default:
206 break;
207 }
208 if( layer1.getCell( x1, y1 )!=null || layer1.getCell( x2, y2 )!=null || layer1.getCell( x3, y3 )!=null ){
209 imgGreen.setPosition( x0, y0 );
210 }
211
212 }
213
214 public void MoveY(){
215 float x0 = imgGreen.getX();
216 float y0 = imgGreen.getY();
217 int x1 = 0, y1 = 0;
218 int x2 = 0, y2 = 0;
219 int x3 = 0, y3 = 0;
220
221 float speed = 2;
222 switch( stateY ){
223 case move_up:
224 imgGreen.translate( 0, speed );
225 x1 = (int)( (imgGreen.getX()+1)/32 );
226 x2 = (int)( (imgGreen.getX()+15)/32 );
227 x3 = (int)( (imgGreen.getX()+31)/32 );
228
229 y1 = (int)( (imgGreen.getTop()-1)/32 );
230 y2 = y3 = y1;
231 //x2 = x3 = x1;
232 break;
233 case move_down:
234 imgGreen.translate( 0, -speed );
235 x1 = (int)( (imgGreen.getX()+1)/32 );
236 x2 = (int)( (imgGreen.getX()+15)/32 );
237 x3 = (int)( (imgGreen.getX()+31)/32 );
238
239 y1 = (int)( (imgGreen.getY()+1)/32 );
240 y2 = y3 = y1;
241 break;
242 default:
243 break;
244 }
245
246 if( layer1.getCell( x1, y1 )!=null || layer1.getCell( x2, y2 )!=null || layer1.getCell( x3, y3 )!=null ){
247 imgGreen.setPosition( x0, y0 );
248 }
249 }
250
251 @Override
252 public void render() {
253 // TODO Auto-generated method stub
254 Gdx.gl.glClearColor( 0.5f, 0.5f, 0.5f, 1 );
255 Gdx.gl.glClear( GL10.GL_COLOR_BUFFER_BIT );
256
257 renderer.setView(camera);
258 renderer.render();
259
260
261 currentTime += Gdx.graphics.getDeltaTime();
262 if( currentTime - clicktimeX > 0.15f ){
263 MoveX();
264 }
265 if( currentTime - clicktimeY > 0.15f ){
266 MoveY();
267 }
268
269 stage.act();
270 stage.draw();
271 }
272
273 @Override
274 public void dispose() {
275 // TODO Auto-generated method stub
276 super.dispose();
277 }
278
279
280 }
运行结果：
地图是自己随便编辑的。有两个图层，一个背景层，一个对象层。对象层可通过getCell()函数获取地图单元。
通过layer.getMapObject()可获取对应的对象。
MapObject可通过getProperties().get("level")这种形式获取对象的键值，以便在程序中使用。
要获取object的x,y坐标以及长宽时，需将MapObject转化为RectangleMapObject，然后获取其Rectangle就行了。
另外，地图中涉及碰撞检测，一般在控制物体（一般是玩家）的边缘设置2-3个检测点，最好不要设置在两边，而是靠近边缘的点。
大概就这么多了，比较粗糙，记录而已。。
libgdx学习记录11——平铺地图TiledMap,布布扣,bubuko.com
时间： 2024-08-05 11:09:42