Greenfoot

JyspeKV2

2023/5/3

#

the code I have for mouse movement is as follows

if(Greenfoot.mousePressed(this))
        {
            setLocation(Greenfoot.getMouseInfo().getX(), getY());
        }

now the issue is this is really jittery I would like it to be smooth, and depending on the orientation of the actor(there maybe more then one and in different orientations)

danpost

2023/5/3

#

JyspeKV2 wrote...

the code I have for mouse movement is as follows << Code Omitted >> this is really jittery I would like it to be smooth, and depending on the orientation of the actor

Maybe you are using the wrong methods For moving, the move(int) method might be better than setLocation(int, int), as you seem to only move in straight lines forward or backward. As far as the method used for the mouse, Greenfoot.mousePressed(Actor) does not always return true while a button is pressed on an actor. It is true when the button goes down (the pressing action is performed), but not when held down. You probably need to save the coordinates of where the mouse was originally pressed (to determine its movements). Then, use Greenfoot.mouseDragged(Actor) to test for mouse moving the actor. Maybe something like this:

private int mX, mY; // for mouse coordinates

public void act() {
    MouseInfo mouse = Greenfoot.getMouseInfo();
    if (mouse == null) return;
    if (Greenfoot.mousePressed(null)) {
        mX = mouse.getX();
        mY = mouse.getY();
    }
    if (Greenfoot.mouseDragged(this)) {
        int dx = mouse.getX()-mX;
        int dy = mouse.getY()-mY;
        move(getRotation()%180 == 0 ? dx : dy);
        mX = mouse.getX();
        mY = mouse.getY();
    }
}

JyspeKV2

2023/5/4

#

Well everything works great with every actor, but on the Player Character its inverted So when I move the mouse Left it goes right vice versa, it may have to do with the direction of the PC facing the Left side of the screen

danpost

2023/5/4

#

JyspeKV2 wrote...

Well everything works great with every actor, but on the Player Character its inverted So when I move the mouse Left it goes right vice versa, it may have to do with the direction of the PC facing the Left side of the screen

Then, try the following for line 13:

move((getRotation()%180 == 0 ? dx : dy)*(1-2*(getRotation()/180)));

Or (same thing, but not calling getRotation twice):

int rot = getRotation();
move((rot%180 == 0 ? dx : dy)*(1-2*(rot/180)));

JyspeKV2

2023/5/5

#

The first Fix works Perfectly thank you danpost

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I need Help Programming smooth Mouse Moving for a Parking Jam type game