class GameCanvas extends Canvas implements Runnable { private int playerX, playerY; private boolean shootRequested; private boolean running;
Record touch down/up positions to detect direction. java midp 2.0 touch screen games
Assume touch exists if screen width > 240px OR model name contains "Touch"/"5800"/"S5230"/etc. But fragile. 3. Game Loop for Touch Games MIDP games use a threaded game loop with repaint() and serviceRepaints() . Basic Canvas Game Loop public class TouchGame extends Canvas implements Runnable { private volatile boolean running; private int touchX, touchY; private boolean touching; public TouchGame() setFullScreenMode(true); touchX = -1; private Graphics offGfx
Use timestamps: record press time, check in update loop. 5. Graphics & Double Buffering for Touch Response Touch games must feel instant – input to visual feedback < 100ms. Enable double buffering: public class GameCanvas extends Canvas private Image offscreen; private Graphics offGfx; protected void sizeChanged(int w, int h) offscreen = Image.createImage(w, h); offGfx = offscreen.getGraphics(); protected void sizeChanged(int w