rotate and move to a point

Programming Questions

sionco

in Programming Questions • 1 year ago

Hi, I've been looking through the examples and the forums, but just can't seem to figure out to do this.

Basically, My game is an overhead perspective, where the user controls a man.

I want to man to rotate properly and move towards where the user clicks.
Earlier

In the program, the targetX variable of the object is set to mouseX and targetY = mouseY.

void draw() {

      pushMatrix();
translate(width/2, height/2);
      rotate(angle);
      image(imgPlayer,x,y);
      popMatrix();
}

void move() {
      if ((targetX > 0) && (targetY > 0)) {
            angle = atan2(targetY - y, targetX - x);

            x += cos(angle)*1;
            y+= sin(angle)*1;
}

}

Replies(3)

Chrisir

Re: rotate and move to a point

1 year ago

Look at this

http://forum.processing.org/topic/pvector-orintation-robot

sionco

Re: rotate and move to a point

1 year ago

That codes hard to read and I'm unsure which part deals with rotation, I'm still none the wiser, sorry

In my code, if I comment out the rotate(angle) part the player moves perfectly towards the target, all I need help is to rotate the image to make it look in the correct direction.

sionco

Re: rotate and move to a point

1 year ago

I managed to solve it myself after a LOT of playing around.

This is what I did, and realized that I had to draw the image at coordinates 0,0

pushMatrix();
imageMode(CENTER);
translate(x, y);
rotate(atan2(targetY-y, targetX-x));
image(imgPlayer,0,0);
popMatrix();

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