Android e LibGDX - Spy Where
De Aulas
Links relacionados: Jogos Digitais
Spy Where
Exemplo de código de Android com LibGDX com a utilização de imagens, animação e sons.
Para compilar o jogo, é necessário baixar os recursos e descompacta-los na pasta assets do projeto referente ao android.
1package com.mygdx.game;
2
3import com.badlogic.gdx.ApplicationAdapter;
4import com.badlogic.gdx.Gdx;
5import com.badlogic.gdx.graphics.GL20;
6import com.badlogic.gdx.graphics.Texture;
7import com.badlogic.gdx.graphics.g2d.SpriteBatch;
8import com.badlogic.gdx.audio.Sound;
9import com.badlogic.gdx.graphics.OrthographicCamera;
10import com.badlogic.gdx.graphics.Texture.TextureFilter;
11import com.badlogic.gdx.graphics.g2d.Sprite;
12import com.badlogic.gdx.graphics.g2d.TextureRegion;
13import com.badlogic.gdx.math.Vector3;
14
15public class MyGdxGame extends ApplicationAdapter {
16 private OrthographicCamera camera;
17 private SpriteBatch batch;
18 private Texture texture;
19 private Sprite sky;
20 private Sprite city;
21 private Sprite road;
22 private Sprite lamppost;
23 private Sprite iconLeft;
24 private Sprite iconRight;
25 private Sprite iconUp;
26 private Sprite iconDown;
27 private Sprite iconShoot;
28 private Sprite spy[][] = new Sprite[2][3];
29 private Sound soundStep[] = new Sound[2];
30 private Sound shootSound;
31 private Sound music;
32 private int x_skyA;
33 private int x_skyB;
34 private int x_cityA;
35 private int x_cityB;
36 private int x_roadA;
37 private int x_roadB;
38 private int x_lamppost;
39 private int y;
40 private int step;
41 private int action;
42
43 public final int RIGHT = 0;
44 public final int LEFT = 1;
45 public final int SHOT = 2;
46 public final int UP = 3;
47 public final int DOWN = 4;
48 public final int WIDTH = 800;
49 public final int HEIGHT = 480;
50 public final float PROPORTION = 1.6f;
51
52 @Override
53 public void create() {
54 camera = new OrthographicCamera();
55 camera.setToOrtho(false, WIDTH, HEIGHT);
56
57 batch = new SpriteBatch();
58
59 soundStep[0] = Gdx.audio.newSound(Gdx.files.internal("step_0.wav"));
60 soundStep[1] = Gdx.audio.newSound(Gdx.files.internal("step_1.wav"));
61 shootSound = Gdx.audio.newSound(Gdx.files.internal("shoot.wav"));
62 music = Gdx.audio.newSound(Gdx.files
63 .internal("fernando_strezelecki.mp3"));
64 music.play();
65
66 texture = new Texture(Gdx.files.internal("imagens.png"));
67 texture.setFilter(TextureFilter.Linear, TextureFilter.Linear);
68
69 spy[0][0] = getSprite(texture, 0, 0, 25, 65, PROPORTION);
70 spy[0][1] = getSprite(texture, 25, 0, 26, 65, PROPORTION);
71 spy[0][2] = getSprite(texture, 51, 0, 28, 65, PROPORTION);
72 spy[1][0] = getSprite(texture, 0, 65, 25, 65, PROPORTION);
73 spy[1][1] = getSprite(texture, 25, 65, 26, 65, PROPORTION);
74 spy[1][2] = getSprite(texture, 51, 65, 28, 65, PROPORTION);
75
76 sky = getSprite(texture, 0, 500, 798, 300, PROPORTION);
77 city = getSprite(texture, 0, 800, 1024, 202, PROPORTION);
78 road = getSprite(texture, 0, 300, 752, 126, PROPORTION);
79 lamppost = getSprite(texture, 0, 150, 69, 122, PROPORTION);
80
81 iconRight = getSprite(texture, 0, 450, 50, 50, PROPORTION);
82 iconRight.setPosition(WIDTH - iconRight.getWidth(), 0);
83 iconLeft = getSprite(texture, 50, 450, 50, 50, PROPORTION);
84 iconLeft.setPosition((WIDTH - (iconLeft.getWidth() * 2)), 0);
85 iconShoot = getSprite(texture, 100, 450, 50, 50, PROPORTION);
86 iconUp = getSprite(texture, 150, 450, 50, 50, PROPORTION);
87 iconUp.setPosition(WIDTH - iconUp.getWidth(), iconUp.getHeight() * 2);
88 iconDown = getSprite(texture, 200, 450, 50, 50, PROPORTION);
89 iconDown.setPosition(WIDTH - iconDown.getWidth(), iconDown.getHeight());
90 iconShoot.setPosition(0, 0);
91
92 x_skyA = 0;
93 x_skyB = (int) sky.getWidth() + 1;
94 x_cityA = 0;
95 x_cityB = (int) city.getWidth() + 1;
96 x_roadA = 0;
97 x_roadB = (int) road.getWidth() + 1;
98 x_lamppost = 0;
99 y = HEIGHT / 8;
100 step = 0;
101 action = RIGHT;
102 }
103
104 public boolean touched(Sprite s, int tx, int ty) {
105 return ((s.getX() < tx) && (s.getX() + s.getWidth() > tx)
106 && (s.getY() < ty) && (s.getY() + s.getHeight() > ty));
107 }
108
109 public Sprite getSprite(Texture t, int x, int y, int w, int h,
110 float proporcao) {
111 TextureRegion region = new TextureRegion(t, x, y, w, h);
112 Sprite sprite = new Sprite(region);
113 sprite.setSize(w * proporcao, h * proporcao);
114 sprite.setPosition(0, 0);
115 return sprite;
116 }
117
118 @Override
119 public void dispose() {
120 batch.dispose();
121 texture.dispose();
122 soundStep[0].dispose();
123 soundStep[1].dispose();
124 music.dispose();
125 }
126
127 public void simulateGameWorld() {
128 int tx;
129 int ty;
130 if (Gdx.input.isTouched()) {
131 Vector3 touchPos = new Vector3();
132 touchPos.set(Gdx.input.getX(), Gdx.input.getY(), 0);
133 camera.unproject(touchPos);
134 tx = (int) touchPos.x;
135 ty = (int) touchPos.y;
136
137 if (touched(iconShoot, tx, ty)) {
138 runAction(SHOT);
139 }
140 if (touched(iconLeft, tx, ty)) {
141 runAction(LEFT);
142 }
143 if (touched(iconRight, tx, ty)) {
144 runAction(RIGHT);
145 }
146 if (touched(iconUp, tx, ty)) {
147 runAction(UP);
148 }
149 if (touched(iconDown, tx, ty)) {
150 runAction(DOWN);
151 }
152 }
153 }
154
155 void runAction(int a) {
156 boolean acted = false;
157 step = (step > 0) ? 0 : 1;
158 switch (a) {
159 case RIGHT:
160 x_skyA -= 2;
161 x_skyB -= 2;
162 x_cityA -= 5;
163 x_cityB -= 5;
164 x_roadA -= 10;
165 x_roadB -= 10;
166 x_lamppost -= 15;
167 action = RIGHT;
168 acted = true;
169 break;
170 case LEFT:
171 x_skyA += 2;
172 x_skyB += 2;
173 x_cityA += 5;
174 x_cityB += 5;
175 x_roadA += 10;
176 x_roadB += 10;
177 x_lamppost += 15;
178 action = LEFT;
179 acted = true;
180 break;
181 case UP:
182 if (y < HEIGHT / 5) {
183 y += 10;
184 acted = true;
185 }
186 break;
187 case DOWN:
188 if (y > HEIGHT / 10) {
189 y -= 10;
190 acted = true;
191 }
192 break;
193 case SHOT:
194 step = SHOT;
195 shootSound.play();
196 acted = true;
197 break;
198 }
199 if ((step != SHOT) && acted) {
200 soundStep[step].play();
201 }
202 try {
203 Thread.sleep(50);
204 } catch (InterruptedException e) {
205 e.printStackTrace();
206 }
207 }
208
209 private int drawBackground(Sprite sprite, int x, int y) {
210 if ((int) (x + sprite.getWidth()) < 0) {
211 x += (int) (sprite.getWidth() * 2);
212 }
213 if (x > (int) sprite.getWidth()) {
214 x -= (int) (sprite.getWidth() * 2);
215 }
216 sprite.setPosition(x, y);
217 sprite.draw(batch);
218 return x;
219 }
220
221 @Override
222 public void render() {
223 simulateGameWorld();
224
225 Gdx.gl.glClearColor(1, 1, 1, 1);
226 Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
227
228 if (x_lamppost < (int) (-lamppost.getWidth() - 300)) {
229 x_lamppost = WIDTH;
230 }
231 if (x_lamppost > WIDTH) {
232 x_lamppost = (int) (-lamppost.getWidth() - 300);
233 }
234 lamppost.setPosition(x_lamppost, 0);
235 spy[action][step].setPosition(
236 (int) ((WIDTH / 2) - (spy[action][step].getWidth() / 2)), y);
237
238 batch.setProjectionMatrix(camera.combined);
239 batch.begin();
240 x_skyA = drawBackground(sky, x_skyA, 0);
241 x_skyB = drawBackground(sky, x_skyB, 0);
242 x_cityA = drawBackground(city, x_cityA, WIDTH / 5);
243 x_cityB = drawBackground(city, x_cityB, WIDTH / 5);
244 x_roadA = drawBackground(road, x_roadA, 0);
245 x_roadB = drawBackground(road, x_roadB, 0);
246
247 // light.draw(batch);
248 spy[action][step].draw(batch);
249 lamppost.draw(batch);
250
251 iconShoot.draw(batch);
252 iconLeft.draw(batch);
253 iconRight.draw(batch);
254 iconUp.draw(batch);
255 iconDown.draw(batch);
256
257 batch.end();
258 }
259}
