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Criando meu 1º game com android

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Daniel Baccin

The document discusses creating a simple game called "Jumper" for Android. It goes through the steps of setting up the game framework including creating classes for the game view, bird, pipes and score. It also covers implementing the game loop to handle animation, touch input for jumping, collision detection and restarting the game over screen. Sprites are added later for visual assets. The document provides references and contact information at the end for learning more about game development on Android.

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Criando meu 1º game com Android by Daniel Baccin
DESAFIO: Palestrar sobre jogos!
DESAFIO: Palestrar sobre jogos!
Felipe Torres
DESAFIO: Palestrar sobre jogos! CHALLENGE ACCEPTED
IMAGE: MASHABLE, WILL FENSTERMAKER
IMAGE: MASHABLE, WILL FENSTERMAKER
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android. com/apk/res/android" package="br.com.kenuiapps.jumper" > <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > … </application> AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android. com/apk/res/android" package="br.com.kenuiapps.jumper" > <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" > … </application> AndroidManifest.xml
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
<application … <activity android:name=".MainActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> … </application> AndroidManifest.xml
<application … <activity android:name=".MainActivity" android:label="@string/app_name" android:screenOrientation="portrait"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> … </application> AndroidManifest.xml
<ListView/> <TextView/><ImageView/> <SurfaceView/>
<ListView/> <TextView/><ImageView/> <SurfaceView/>
public class Game extends SurfaceView{ /* * Aqui implemetamos a mecânica do jogo */ }
public class MainActivity extends Activity { Game game; @Override protected void onCreate(Bundle savedInstanceState) { … setContentView(R.layout.activity_main); FrameLayout container = (FrameLayout) findViewById(R.id.container); game = new Game(this); container.addView(game); }
public class MainActivity extends Activity { Game game; @Override protected void onCreate(Bundle savedInstanceState) { … setContentView(R.layout.activity_main); FrameLayout container = (FrameLayout) findViewById(R.id.container); game = new Game(this); container.addView(game); }
<FrameLayout xmlns:android="http://schemas.android. com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/container"/> activity_main.xml
<FrameLayout xmlns:android="http://schemas.android. com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/container"/> activity_main.xml
public class MainActivity extends Activity { Game game; @Override protected void onCreate(Bundle savedInstanceState) { … setContentView(R.layout.activity_main); FrameLayout container = (FrameLayout) findViewById(R.id.container); game = new Game(this); container.addView(game); }
Criando meu 1º game com android
Loop Principal ● Pontuação ● nº de vidas ● nível ● se bateu em algo ● inimigos
public class Game extends SurfaceView implements Runnable { /* * Thread separada da principal !!! */ }
public class Game extends SurfaceView implements Runnable { ... @Override public void run() { while (isRunning){ ... } }
@Override public void run() { while (isRunning){ /* * desenhar os componentes */ } }
@Override public void run() { while (isRunning){ Canvas canvas = holder.lockCanvas(); /* * desenhar os componentes */ holder.unlockCanvasAndPost(canvas); } }
Canvas
Canvas
Background PássaroCanos PontuaçãoGame over
Background PássaroCanos PontuaçãoGame over
private Bitmap background; public Game(Context mainActivity) { super(mainActivity); tela = new Tela(mainActivity); Bitmap back = BitmapFactory.decodeResource( getResources(), R.drawable.background); background = Bitmap.createScaledBitmap( back, tela.getLargura(), tela.getAltura(), false); }
private Bitmap background; public Game(Context mainActivity) { super(mainActivity); tela = new Tela(mainActivity); Bitmap back = BitmapFactory.decodeResource( getResources(), R.drawable.background); background = Bitmap.createScaledBitmap( back, tela.getLargura(), tela.getAltura(), false); }
private Bitmap background; public Game(Context mainActivity) { super(mainActivity); tela = new Tela(mainActivity); Bitmap back = BitmapFactory.decodeResource( getResources(), R.drawable.background); background = Bitmap.createScaledBitmap( back, tela.getLargura(), tela.getAltura(), false); }
private Bitmap background; public Game(Context mainActivity) { super(mainActivity); tela = new Tela(mainActivity); Bitmap back = BitmapFactory.decodeResource( getResources(), R.drawable.background); background = Bitmap.createScaledBitmap( back, tela.getLargura(), tela.getAltura(), false); }
private Bitmap background; public Game(Context mainActivity) { super(mainActivity); tela = new Tela(mainActivity); Bitmap back = BitmapFactory.decodeResource( getResources(), R.drawable.background); background = Bitmap.createScaledBitmap( back, tela.getLargura(), tela.getAltura(), false); }
private Bitmap background; public Game(Context mainActivity) { super(mainActivity); tela = new Tela(mainActivity); Bitmap back = BitmapFactory.decodeResource( getResources(), R.drawable.background); background = Bitmap.createScaledBitmap( back, tela.getLargura(), tela.getAltura(), false); }
public class Tela { private final DisplayMetrics metrics; public Tela(Context context) { WindowManager windowsManage = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display defaultDisplay = windowsManage.getDefaultDisplay(); metrics = new DisplayMetrics(); defaultDisplay.getMetrics(metrics); } public int getAltura(){ return metrics.heightPixels; } public int getLargura() { return metrics.widthPixels; } }
public class Tela { private final DisplayMetrics metrics; public Tela(Context context) { WindowManager windowsManage = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display defaultDisplay = windowsManage.getDefaultDisplay(); metrics = new DisplayMetrics(); defaultDisplay.getMetrics(metrics); } public int getAltura(){ return metrics.heightPixels; } public int getLargura() { return metrics.widthPixels; } }
public class Tela { private final DisplayMetrics metrics; public Tela(Context context) { WindowManager windowsManage = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display defaultDisplay = windowsManage.getDefaultDisplay(); metrics = new DisplayMetrics(); defaultDisplay.getMetrics(metrics); } public int getAltura(){ return metrics.heightPixels; } public int getLargura() { return metrics.widthPixels; } }
public class Tela { private final DisplayMetrics metrics; public Tela(Context context) { WindowManager windowsManage = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display defaultDisplay = windowsManage.getDefaultDisplay(); metrics = new DisplayMetrics(); defaultDisplay.getMetrics(metrics); } public int getAltura(){ return metrics.heightPixels; } public int getLargura() { return metrics.widthPixels; } }
Criando meu 1º game com android
@Override public void run() { while (isRunning){ Canvas canvas = holder.lockCanvas(); canvas.drawBitmap(background, 0, 0, null); holder.unlockCanvasAndPost(canvas); } }
Criando meu 1º game com android
Background PássaroCanos PontuaçãoGame over
@Override public void run() { while (isRunning){ Canvas canvas = holder.lockCanvas(); canvas.drawBitmap(background, 0, 0, null); passaro.desenhaNo(canvas); holder.unlockCanvasAndPost(canvas); } }
public class Passaro { public void desenhaNo(Canvas canvas){ canvas.drawCircle(x, y, RAIO, COR); } }
public class Passaro { public void desenhaNo(Canvas canvas){ canvas.drawCircle(x, y, RAIO, COR); } }
X Y (0,0)
Background Pássaro -cai() Canos PontuaçãoGame over
@Override public void run() { while (isRunning){ Canvas canvas = holder.lockCanvas(); canvas.drawBitmap(background, 0, 0, null); passaro.desenhaNo(canvas); passaro.cai(); holder.unlockCanvasAndPost(canvas); }
X Y (0,0)
public class Passaro { ... public void cai() { y += 5; } }
Criando meu 1º game com android
Background Pássaro -cai() -pula() Canos PontuaçãoGame over
public class Game extends SurfaceView implements Runnable, OnTouchListener { /* * Agora podemos capturar toques na tela */ }
public class Game extends SurfaceView implements Runnable, OnTouchListener { ... @Override public boolean onTouch(View v, MotionEvent event) { passaro.pula(); return false; } ... }
public class Game extends SurfaceView implements Runnable, OnTouchListener { ... @Override public boolean onTouch(View v, MotionEvent event) { passaro.pula(); return false; } ... }
public class Passaro { ... public void pula() { y -= 150; } }
Criando meu 1º game com android
Background Pássaro -cai() -pula() Canos PontuaçãoGame over
@Override public void run() { while (isRunnig){ Canvas canvas = holder.lockCanvas(); canvas.drawBitmap(background, 0, 0, null); passaro.desenhaNo(canvas); passaro.cai(); canos.desenhaNo(canvas); holder.unlockCanvasAndPost(canvas);
public class Cano { public void desenhaNo(Canvas canvas){ canvas.drawRect(x1, y1, x2, y2, COR); } }
public class Cano { public void desenhaNo(Canvas canvas){ canvas.drawRect(x1, y1, x2, y2, COR); } }
(x1, y1)
public class Cano { public void desenhaNo(Canvas canvas){ canvas.drawRect(x1, y1, x2, y2, COR); } }
(x1, y1) (x2, y2)
public class Cano { public void desenhaNo(Canvas canvas){ canvas.drawRect(x1, y1, x2, y2, COR); } }
(x1, y1) (x2, y2)
Background Pássaro -cai() -pula() Canos -move() PontuaçãoGame over
@Override public void run() { while (isRunnig){ Canvas canvas = holder.lockCanvas(); canvas.drawBitmap(background, 0, 0, null); passaro.desenhaNo(canvas); passaro.cai(); canos.desenhaNo(canvas); canos.move(); holder.unlockCanvasAndPost(canvas); } }
public class Cano { ... public void move(){ posicao -= 5; } }
Criando meu 1º game com android
Background Pássaro -cai() -pula() Canos -move() Pontuação Game over
Background Pássaro -cai() -pula() Canos -move() Pontuação -aumenta() Game over
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
pontuacao.aumenta();
public class Pontuacao { private int pontos = 0; public void aumenta() { pontos++; } ... }
public class Pontuacao { private int pontos = 0; public void aumenta() { pontos++; } ... }
@Override public void run() { while (isRunnig){ Canvas canvas = holder.lockCanvas(); ... pontuacao.desenhaNo(canvas); ... holder.unlockCanvasAndPost(canvas); } }
public class Pontuacao { … public void desenhaNo(Canvas canvas) { canvas.drawText(String.valueOf(pontos), 100, 100, BRANCO); } }
Criando meu 1º game com android
Background Pássaro -cai() -pula() Canos -move() Pontuação -aumenta() Game over
Background Pássaro -cai() -pula() Canos -move() Pontuação -aumenta() Game over -temColisao()
temColisao()
Criando meu 1º game com android
temColisao()
temColisao! horizontal!
temColisao! vertical!
Se distância do centro do circulo até o retangulo for Igual ao Raio
Se distância do centro do circulo até o retangulo for menor que o Raio
public class VerificadorDeColisao { private Passaro passaro; private List<Cano> canos; ... }
public boolean temColisao() { for (Cano cano: canos){ if(cano.temColisaoHorizontal(passaro) || cano.temColisaoVertical(passaro)){ return true; } } return false; }
@Override public void run() { while (isRunning){ Canvas canvas = holder.lockCanvas(); ... if(verificadorDeColisao.temColisao()){ gameOver.desenhaNo(canvas); isRunning = false; } holder.unlockCanvasAndPost(canvas); } }
@Override public void run() { while (isRunning){ Canvas canvas = holder.lockCanvas(); ... if(verificadorDeColisao.temColisao()){ gameOver.desenhaNo(canvas); isRunning = false; } holder.unlockCanvasAndPost(canvas); } }
Criando meu 1º game com android
Background Pássaro -cai() -pula() Canos -move() Pontuação -aumenta() Game over -temColisao()
Sprites
Sprites
public class Passaro { public void desenhaNo(Canvas canvas){ canvas.drawCircle(x, y, RAIO, COR); } }
public class Passaro { public void desenhaNo(Canvas canvas){ Bitmap bp = BitmapFactory.decodeResource(context.getResources(), R.drawable.passaro); passaro = bp.createScaledBitmap(bp, RAIO, false); canvas.drawBitmap(passaro, RAIO, altura, null); } }
public class Passaro { public void desenhaNo(Canvas canvas){ Bitmap bp = BitmapFactory.decodeResource(context.getResources(), R.drawable.passaro); passaro = bp.createScaledBitmap(bp, RAIO, false); canvas.drawBitmap(passaro, RAIO, altura, null); } }
public class Cano { public void desenhaNo(Canvas canvas){ Bitmap bp = BitmapFactory.decodeResource(context.getResources(), R.drawable.cano); cano = Bitmap.createScaledBitmap(bp, LARGURA, alturaDoCano, false); canvas.drawBitmap(cano, posicao, alturaDoCano, null); } }
public class Cano { public void desenhaNo(Canvas canvas){ Bitmap bp = BitmapFactory.decodeResource(context.getResources(), R.drawable.cano); cano = Bitmap.createScaledBitmap(bp, LARGURA, alturaDoCano, false); canvas.drawBitmap(cano, posicao, alturaDoCano, null); } }
Criando meu 1º game com android
public class Passaro { public void desenhaNo(Canvas canvas){ Bitmap bp = BitmapFactory.decodeResource(context.getResources(), R.drawable.joao); passaro = bp.createScaledBitmap(bp, RAIO, false); canvas.drawBitmap(passaro, RAIO, altura, null); } }
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Criando meu 1º game com android
Referências ● http://www.casadocodigo.com.br/products/livro-games-android ● http://gamedev.stackexchange.com/questions/89/2d-gaming-libraries- frameworks-engines-for-android ● http://www.tecmundo.com.br/video-game-e-jogos/79428-mercado-games- mobile-bater-us-45-bi-2018-ultrapassar-consoles.htm ● http://mashable.com/2014/03/20/flappy-bird-launch-again/#jEraRnXf4qqQ
Oportunidades rh@casamagalhaes.com.br
https://github.com/danielbaccin/jumper http://pt.slideshare.net/baccin daniel.baccin@gmail.com

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Criando meu 1º game com android