javafx+fxgl引擎做的⼀款飞机⼤战
先放效果图：
1，javafx和fxgl介绍
javafx类似awt,swing，是⼀个图形化界⾯的库。
（似乎都喜欢采⽤mvc模式，把界⾯和其它东西分开来写）
外国⼈写的⼀个游戏引擎，其实就是把javafx的⼀些东西整理封装了起来，但封装也有坏处，，⽤起来不怎么灵活，⽹上也搜不到⽤法（。。还是作者提供的api⽂档我看不懂）。
导⼊jar包就能使⽤了。
2，fxgl⾥的⼀些东西分析
（1）还是要在主代码⾥继承⼀个类（fxgl的作者封装成了GameApplication），然后再main函数⾥调⽤launch(args);
（2）键盘输⼊
fxgl的⽅法是重写⽗类的initInput函数，然后在理添加⾏为与对应键盘绑定就⾏了
1 getInput().addAction(new UserAction("Shoot") {
2 @Override
3protected void onAction() {
4 playerComponent.shoot();
5 }
6 }, MouseButton.PRIMARY);
（3）实体机制
将游戏⾥的元素（玩家，⼦弹，敌⼈，爆炸效果等）都看成⼀个实体加上不同的组件，也就是先建⽴⼀个实体，然后往⾥⾯加组件，或者配置外观等
return Entities.builder()
.type(SpaceRunnerType.PLAYER)
.from(data)
.AssetLoader().loadTexture("sprite_player.png", 40, 40))
.with(new CollidableComponent(true), new ParticleComponent(emitter))
.with(new PlayerComponent())
.build();
（4）加载声⾳，图⽚等资源
这⾥需要按照规定，⽐如图⽚放于assets/textures中，在代码中则不需要设置⽂件路径。
还是直接放代码吧
1package hzh;
2
3import com.almasb.fxgl.animation.Animation;
4import com.almasb.fxgl.animation.Interpolators;
5import com.almasb.fxgl.app.GameApplication;
6import com.ath.FXGLMath;
7import com.ity.Entity;
8
9import com.ity.SpawnData;
10import com.ity.view.ScrollingBackgroundView;
11import com.a.entityponents.HealthComponent; 12import com.almasb.fxgl.input.UserAction;
13import com.almasb.fxgl.settings.GameSettings;
14import com.ure.Texture;
15import com.almasb.fxgl.ui.ProgressBar;
16
llision.BulletEnemyHandler;
llision.PlayerBulletHandler;
19import hzhponents.PlayerComponent;
20import hzh.level.Level;
21import javafx.beans.binding.Bindings;
ry.HorizontalDirection;
ry.Orientation;
ry.Point2D;
25import javafx.scene.effect.DropShadow;
26import javafx.scene.input.KeyCode;
27import javafx.scene.input.MouseButton;
28import javafx.scene.layout.HBox;
29import javafx.scene.layout.Pane;
30import javafx.scene.layout.VBox;
31import javafx.scene.paint.Color;
32import javafx.scene.shape.Rectangle;
33import Text;
34import javafx.util.Duration;
35import static com.almasb.fxgl.app.DSLKt.*;
36import java.util.Map;
37
38
39
40
41public class SpaceRunnerApp extends GameApplication {
42
43private PlayerComponent playerComponent;
44private Level level;
45private Texture weaponTexture;
46private Text bullets;
47private Text uiTextLevel;
48
49/**
50 * 初始化舞台（窗⼝）
51*/
52 @Override
53protected void initSettings(GameSettings settings) {
54
55 settings.setTitle("太空⼤战");
56 settings.setWidth(1000);
57 settings.setHeight(700);
58
59 }
60/**
61 * 预设置
62*/
63 @Override
64protected void preInit() {
65 loopBGM("bgm.mp3");
66 }
67/**
68 * 初始化输⼊
69*/
70 @Override
71protected void initInput() {
72 getInput().addAction(new UserAction("Move Up") {
73 @Override
74protected void onAction() {
75 playerComponent.up();
76 }
77 }, KeyCode.W);
78
79 getInput().addAction(new UserAction("Move Down") {
80 @Override
81protected void onAction() {
82 playerComponent.down();
83 }
84 }, KeyCode.S);
85
86 getInput().addAction(new UserAction("Change Weapon") {
87 @Override
88protected void onAction() {
89 playerComponent.changeWeapon();
90
91 weaponTexture.setImage(image("sprite_laser.png"));
92 Property().bind(getip("laser").asString("x %d"));
93
94 }
95 }, KeyCode.F);
96
97 getInput().addAction(new UserAction("Shoot") {
98 @Override
99protected void onAction() {
100 playerComponent.shoot();
101 }
102 }, MouseButton.PRIMARY);
103 }
104/**
105 * 建⽴map表
106*/
107 @Override
108protected void initGameVars(Map<String, Object> vars) {
109 vars.put("score", 0);
110 vars.put("bullets", 999);
111 vars.put("laser", 50);
112 vars.put("rockets", 10);
113 vars.put("HP", 100);
114 vars.put("MP", 0);
115 vars.put("leveltype", 0);
116 vars.put("enemies", 5);
117 }
118/**
119 * 初始化游戏元素
120*/
121 @Override
122protected void initGame() {
123
124
125 getGameWorld().addEntityFactory(new SpaceRunnerFactory());
126//设置背景，并且以卷动式铺满
127 Texture t = getAssetLoader().loadTexture("bg_0.png");
128
129 getGameScene().addGameView(new ScrollingBackgroundView(t.superTexture(t, HorizontalDirection.RIGHT), 130 Orientation.HORIZONTAL));
131
132 Entity player = getGameWorld().spawn("Player", 180, getHeight() / 2);
133
134 playerComponent = Component(PlayerComponent.class);
135//设置视⼝，并与玩家绑定
136 getGameScene().getViewport().setBounds(0, 0, Integer.MAX_VALUE, getHeight());
137 getGameScene().getViewport().bindToEntity(player, 180, getHeight() / 2);
138
139 nextLevel();
140
141 }
142/**
143 * 初始化物理环境（⽐如碰撞）
144*/
145 @Override
146protected void initPhysics() {
147 getPhysicsWorld().addCollisionHandler(new BulletEnemyHandler());
148 getPhysicsWorld().addCollisionHandler(new PlayerBulletHandler());
149
150 }
151
152/**
153 * 初始化ui
154*/
155 @Override
156protected void initUI() {
157//⼦弹框
158 weaponTexture = texture("sprite_bullet.png", 22, 11);
159
160 bullets = getUIFactory().newText("", b(20, 20, 20), 16);
161 Property().bind(getip("bullets").asString("x %d")); //属性绑定
162
163 HBox ui = new HBox(15, //⽔平框
164 weaponTexture,
165 bullets
166 );
167
168 Text laser = getUIFactory().newText("", b(20, 20, 20), 16);
169 Property().bind(getip("laser").asString("x %d"));
170
171 HBox ui2 = new HBox(15,
172 texture("sprite_laser.png"),
173 laser
174 );
175
176 Text rockets = getUIFactory().newText("", b(20, 20, 20), 16); 177 Property().bind(getip("rockets").asString("x %d"));
178
179 HBox ui3 = new HBox(15,
180 texture("rocket.png", 30, 8),
181 rockets
182 );
183
184 VBox boxWeapons = new VBox(15, ui, ui2, ui3);
185 boxWeapons.setTranslateX(getWidth() - 150);
186 boxWeapons.setTranslateY(550);
187 boxWeapons.setScaleX(1.4);
188 boxWeapons.setScaleY(1.4);
189
190 Texture uiBorder = texture("ui.png");
191 uiBorder.setTranslateY(getHeight() - Height());
192
193 getGameScene().addUINode(uiBorder);
194 Text texthp = new Text("HP:");
195 ProgressBar barHP = new ProgressBar(false);
196 barHP.setHeight(30.0);
197 barHP.setLabelVisible(false);
198
199
200 barHP.setFill(Color.RED);
201 barHP.setBackgroundFill(Color.DARKGREY);
202 barHP.setTraceFill(Color.LIGHTGREEN);javaswing和javafx
203 barHP.currentValueProperty().bind(getip("HP"));
204 HBox hb1=new HBox(-10,texthp,barHP);
205
206// MP
207 Text textmp = new Text("MP:");
208 ProgressBar barMP = new ProgressBar(false);
209 barMP.setHeight(30.0);
210 barMP.setLabelVisible(false);
211
212 barMP.setFill(Color.BLUE);
213 barMP.setBackgroundFill(Color.DARKGREY);
214 barMP.setTraceFill(Color.YELLOW);
215 barMP.currentValueProperty().bind(getip("MP"));
216 HBox hb2=new HBox(-10,textmp,barMP);
217
218
219 HBox bars = new HBox(50, hb1, hb2);
220 bars.setTranslateX(0);
221 bars.setTranslateY(520);
222
223
224 Text textScore = getUIFactory().newText("", Color.BLACK, 22);
225 textScore.setTranslateX(350);
226 textScore.setTranslateY(650);
227 Property().bind(getip("score").asString("Score: %d")); 228
229 uiTextLevel = getUIFactory().newText("", Color.BLACK, 22);
230 uiTextLevel.setTranslateX(250);
231 uiTextLevel.setTranslateY(650);
232 Property().bind(getip("leveltype").asString("level: %d")); 233 uiTextLevel.setVisible(false);
234
235
236
237 getGameScene().addUINodes(bars, boxWeapons);
238 getGameScene().addUINodes(textScore);
239 getGameScene().addUINodes(uiTextLevel);
240 play("player_1.wav");
241
242 runOnce(() -> play("begin.wav"), Duration.seconds(1));
243 }
244
245private void nextLevel() {
246 inc("leveltype", +1);
247if(geti("leveltype")>3) inc("leveltype", -3);
248 level = new Level();
249
250 level.spawnNewWave();
251
252
253 Text textLevel = getUIFactory().newText("", Color.WHITE, 22);
254 textLevel.setEffect(new DropShadow(7, Color.BLACK));
255 textLevel.setOpacity(0);
256 Property().bind(getip("leveltype").asString("level: %d"));
257 centerText(textLevel);
258 textLevel.setTranslateY(250);
259
260 getGameScene().addUINode(textLevel);
261
262 Animation<?> anim = fadeIn(textLevel, Duration.seconds(1.66), () -> {
263 Animation<?> anim2 = translate(textLevel,
264new TranslateX(), TranslateY()),
265new Point2D(350, 540),
266 Duration.ZERO,
267 Duration.seconds(1.66),
268 () -> {
269 getGameScene().removeUINode(textLevel);
270 uiTextLevel.setVisible(true);
271 });
272
273 AnimatedValue().setInterpolator(Interpolators.EXPONENTIAL.EASE_IN()); 274 anim2.startInPlayState();
275 });
276
277 AnimatedValue().setInterpolator(Interpolators.SMOOTH.EASE_OUT());
278
279 anim.startInPlayState();
280 }
281
282
283
284public static void main(String[] args) {
285 launch(args);
286 }
287 }
View Code
然后上整个⼯程包：
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