Geomerative translation question.

spiderdab

Hi, It's the first time I use Geomerative library, and I'm trying this for rotating rectangles collision detection. It works as expected, but I have a little question on RShape.translate(). I see it translate only relative, so i cannot simply put a RShape.translate(100,50) into the draw() code, because the rect will run away in a moment...

Is there a way to have an absolute positioning of a RShape?

thanks.

spiderdab

Then, I also need to know the position of the translating & rotating rectengle center. i have tried rect1.getCenter().getX() but it doesn't work... any suggestions?

Thanks again.

spiderdab

I've found a little turnaround for my first Q.

import geomerative.*;

int bck = 0;
float i = 0;
int x;
int y;
float X;
float Y;
float R;

RShape pan1;
RShape pan2;

void setup() {
  size(640, 480);
  RG.init(this);
  stroke(0,0,255);
  fill(250);
  pan1 = RShape.createRectangle(100,100,200,100);
  pan2 = RShape.createRectangle(300,150,100,20);
  delay(5);  
}

void draw() {
  background(bck);
  pan1.translate(0,-Y);
  pan1.rotate(radians(-R),pan1.getCenter());
  Y = 50;
  R = 45;
  pan1.translate(0,Y);
  pan1.rotate(radians(R),pan1.getCenter());
  pan1.draw();
  pan2.draw();

  if(pan1.intersects(pan2)) {
    println("Hit!");
  } else {
    println("Free.");
  }
}

I don't like it so much, but if there isn't any other solution it will be useable..

any other suggestion will be much appreciated!

Thanks.

EDIT: In fact it doesn't work well, meaning that after a lot of movements the real position is lost.

Is there a way to translate to an Absolute position? or anybody knows about another library that can do what I need?

any help will be much appreciated.