image moving

[lenin1]

Hi,
Iam need of help,my problem is iam constructing a brick game,in this game we have bricks with 3 diff colors they needs to be moving on the screen from top to bottom of canvas class and if we arrange the same colored bricks in a row it must be added to the score,but the problem is when iam trying to move the image from  top to bottom its moving at time to down,so i need help to move the image with the controled speed but if i use delay in canvas class its giving error or if i use threads its not controling and if i use thread in the canvas class iam getting error.

[Riven]

What kinda of error?

1. compile-time-error
2. runtime-time-error

Give the name of the error, and if it is a runtime-error, also give the stacktrace.


Maybe even better to show some *relevant* code (not more than 20 lines) so that we know what you are actually doing.

[Juriy]

i use delay in canvas class its giving error

As far as I know, System.currentTimeMills() is rather exact in J2ME...
So you can rely on it, while implementing bricks movement.

try to do something like this:

   

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private long lastUpdateTime;    private final static int MOVE_TIMER = 300;    public void moveBrick(){       if (System.currentTimeMillis() - lastUpdateTime > MOVE_TIMER){          lastUpdateTime = System.currentTimeMillis();                    // ... move-your-brick-code goes here      }    }

Games published by our own members! Check 'em out!

[Coinerson]

i use delay in canvas class its giving error

As far as I know, System.currentTimeMills() is rather exact in J2ME...
So you can rely on it, while implementing bricks movement.

try to do something like this:

   

1   2   3   4   5   6   7   8   9   10

private long lastUpdateTime;    private final static int MOVE_TIMER = 300;    public void moveBrick(){       if (System.currentTimeMillis() - lastUpdateTime > MOVE_TIMER){          lastUpdateTime = System.currentTimeMillis();                    // ... move-your-brick-code goes here      }    }

currentTimeMilis() is not accurate on windows. nanoTime() is better.