GameCanvas
чето или я совсем тупой или хз...
не могу запустить даже стандартный пример юзания GameCanvas
Код:
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;
public class SimpleGameCanvas
extends GameCanvas
implements Runnable {
private boolean mTrucking;
private long mFrameDelay;
private int mX, mY;
private int mState;
public SimpleGameCanvas() {
super(true);
mX = getWidth() / 2;
mY = getHeight() / 2;
mState = 0;
mFrameDelay = 20;
}
public void start() {
mTrucking = true;
Thread t = new Thread(this);
t.start();
}
public void stop() { mTrucking = false; }
public void run() {
Graphics g = getGraphics();
while (mTrucking == true) {
tick();
input();
render(g);
try { Thread.sleep(mFrameDelay); }
catch (InterruptedException ie) {}
}
}
private void tick() {
mState = (mState + 1) % 20;
}
private void input() {
int keyStates = getKeyStates();
if ((keyStates & LEFT_PRESSED) != 0)
mX = Math.max(0, mX - 1);
if ((keyStates & RIGHT_PRESSED) != 0)
mX = Math.min(getWidth(), mX + 1);
if ((keyStates & UP_PRESSED) != 0)
mY = Math.max(0, mY - 1);
if ((keyStates & DOWN_PRESSED) != 0)
mY = Math.min(getHeight(), mY + 1);
}
private void render(Graphics g) {
g.setColor(0xffffff);
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(0x0000ff);
g.drawLine(mX, mY, mX - 10 + mState, mY - 10);
g.drawLine(mX, mY, mX + 10, mY - 10 + mState);
g.drawLine(mX, mY, mX + 10 - mState, mY + 10);
g.drawLine(mX, mY, mX - 10, mY + 10 - mState);
flushGraphics();
}
}
NetBeans компилирует это все дело без проблем, но потом эмулятор пишет:
Цитата:
Exeption: lava.lang.InstantiationExeption: Class not a MIDlet
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и как прикажете с этим бороться? :) |
