Java Midp 2.0 Touch Screen Games Online

Most vendors ignored these until later JTWI/Java Verified phones. Use vendor-specific APIs. Nokia Touch API (S60 5th Ed / S40) // Need: com.nokia.mid.ui.TouchEvent import com.nokia.mid.ui.TouchEvent; import com.nokia.mid.ui.TouchDevice; // In FullCanvas subclass public void pointerPressed(int x, int y) // still works, but better:

public void startApp() canvas = new GameCanvas(); display = Display.getDisplay(this); display.setCurrent(canvas); canvas.start();

protected void paint(Graphics g) // Draw game, e.g. draw button if touching if (touching) g.setColor(0xFF0000); g.fillRect(touchX-10, touchY-10, 20, 20); java midp 2.0 touch screen games

private void updateGame() // Use touchX, touchY, touching for game logic

Record touch down/up positions to detect direction. Most vendors ignored these until later JTWI/Java Verified

protected void pointerReleased(int x, int y) touching = false; onTouchUp(x, y);

protected void paint(Graphics g) g.setColor(0); g.fillRect(0, 0, getWidth(), getHeight()); g.setColor(0x00FF00); g.fillRect(playerX - 10, playerY - 10, 20, 20); drawBullets(g); // ... bullet management methods } draw button if touching if (touching) g

(e.g., tower defense, puzzle) Store last tap point and move character toward it.