main.pde

boolean pointclickedbool = false;
boolean linedrawn = false;
int mode = 0;
Point pointclicked;
PointList list = new PointList();
DrawHalfEdge drawgraph = new DrawHalfEdge();  
boolean removeEdge = false;
Point removeEdgePoint;
boolean colorEdge = false;
Point colorEdgePoint;
int colorFaceColor = 1;
HalfEdge colorFaceHalfEdge;

public void setup() {
  size(800, 500);
  background(255);
  translate(width/2, height/2);
  /*Point p1 = new Point(300, 300);
  list.addPoint(p1);
  Point p2 = new Point(400, 350);
  list.addPoint(p2);
  Point p3 = new Point(100, 250);
  list.addPoint(p3);
  Point p4 = new Point(300, 450);
  list.addPoint(p4);
  Point p5 = new Point(500, 300);
  list.addPoint(p5);
  Point p6 = new Point (280, 260);
  list.addPoint(p6);
  Point p7 = new Point(250, 300);
  list.addPoint(p7);
  Point p8 = new Point(200, 300);
  list.addPoint(p8);
  Point p9 = new Point(200, 335);
  list.addPoint(p9);
  Point p10 = new Point(250, 335);
  list.addPoint(p10);
  Point p11 = new Point(200, 315);
  list.addPoint(p11);
  Point p12 = new Point(240, 325);
  list.addPoint(p12);
  Point p13 = new Point (275, 325);
  list.addPoint(p13);
  Point p14 = new Point (275, 400);
  list.addPoint(p14);
  Point p15 = new Point(150, 280);
  list.addPoint(p15);
  Point p16 = new Point (320, 350);
  list.addPoint(p16);
  Point p17 = new Point (320, 400);
  list.addPoint(p17);
  HalfEdge h1 = new HalfEdge(p1, p2);
  HalfEdge h2 = new HalfEdge(p1, p4);
  HalfEdge h3 = new HalfEdge(p3, p1);
  HalfEdge h4 = new HalfEdge(p1, p5);
  HalfEdge h5 = new HalfEdge(p3, p4);
  HalfEdge h6 = new HalfEdge(p2, p4);
  HalfEdge h7 = new HalfEdge(p7, p8);
  HalfEdge h8 = new HalfEdge(p8, p9);
  HalfEdge h9 = new HalfEdge(p9, p10);
  HalfEdge h10 = new HalfEdge(p10, p7);
  HalfEdge h11 = new HalfEdge(p11,p12);
  HalfEdge h12 = new HalfEdge(p13,p14);
  HalfEdge h13 = new HalfEdge(p7, p15);
  HalfEdge h14 = new HalfEdge(p8, p15);
  HalfEdge h15 = new HalfEdge(p9, p15);
  HalfEdge h16 = new HalfEdge(p16, p17);
  */
  //h1.printFace();
  //float f = CompGeo.signedArea(h1.gettwin());
  //float f2 = CompGeo.signedArea(h1);
  //////System.out.println("Signed Area: " + f);
  //////System.out.println("Signed Area: " + f2);
  //h1.gettwin().printFace();
  //h1.printFace();
  //if (CompGeo.inside(h1.gettwin(), p6, p7)) {
  //  ////System.out.println("INSIDE"); 
  //} else { ////System.out.println("OUTSIDE"); }
  //HalfEdge h5 = new HalfEdge(p5, p2);
  //h5.gettwin().printFace();
  //h5.printFace();
  //HalfEdge h1 = new HalfEdge(v, v1);
  //h1.facePrint();
  //HalfEdge h2 = new HalfEdge(v, v3);
  //h1.facePrint();
  //HalfEdge h3 = new HalfEdge(v, v2);
  //h1.facePrint();
  //HalfEdge h4 = new HalfEdge(v,v4);
  //h1.facePrint();
  //HalfEdge h5 = new HalfEdge(v1,v2);
  //h1.facePrint();
  //drawgraph.drawGraph(list.getPoints());
  //(new Face(h4, list)).printFace();
  //(new Face(h12, list)).printFace();
}
void draw() {
  if(mode != 4) {
    background(255);
  }
  drawgraph.drawGraph(list.getPoints());
  if(pointclickedbool) {
    line(pointclicked.getX(), pointclicked.getY(), mouseX,mouseY);
  }
}
void keyPressed() {
  switch (key) {
    case 'i':
      mode = 0;
      break;
    case 'r':
      mode = 1;
      break;
    case 'e':
      mode = 2;
      break;
    case 'p':
      mode = 3;  
      break;
    case 'c':
      mode = 4;
      break;
    case '0':
      colorFaceColor = 0;
      break;
    case '1':
      colorFaceColor = 1;
      break;
    case '2':
      colorFaceColor = 2;
      break;
    case '3':
      colorFaceColor = 3;
      break;
    case '4':
      colorFaceColor = 4;
      break;    
    case '5':
      colorFaceColor = 5;
      break;
    case '6':
      colorFaceColor = 6;
      break;
    case '7':
      colorFaceColor = 7;
      break;
    case '8':
      colorFaceColor = 8;
      break;
    case '9':
      colorFaceColor = 9;
      break;
    case 'w':
      background(255);
  }
  
}
public void mousePressed() {
  if(mode == 0) {
    float x = mouseX;
    float y = mouseY;
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          pointclicked = p;
          pointclickedbool = true;
        }
      }
    }
  }
  if(mode == 4) {
    float x = mouseX;
    float y = mouseY;
    colorFaceHalfEdge = list.getHalfEdgeBySinglePoint(x,y,10);
  }
}
void mouseReleased() {
  float x = mouseX;
  float y = mouseY;
  switch (mode){
    case 0:
      insertMode(x,y);
      break;
    case 1:
      removePointMode(x,y);
      break;
    case 2:
      removeEdgeMode(x,y);
      break;
    case 4:
      colorFace(x, y);
      break;
  }
}


public void colorFace(float x, float y) {
  if(colorFaceHalfEdge != null) {
      HalfEdge h = CompGeo.findCWR(colorFaceHalfEdge);
      h.printFace();
      boolean b = CompGeo.inside(h, new Point(x,y), list.getFar());
      if(b) {
        h = h.gettwin();
        //h = colorFaceHalfEdge;
      } else {
        //h = h.gettwin();
        //h = colorFaceHalfEdge.gettwin(); 
      }
      if(h != null) {
        Face f = new Face(h, list);
        switch (colorFaceColor) {
        case 0:
          f.daColoring(255,255,255,list, width, height);
          break;
        case 1:
          f.daColoring(0,0,0,list, width, height);
          break;
        case 2:
          f.daColoring(244, 67, 54,list, width, height);
          break;
        case 3:
          f.daColoring(76, 175, 80,list, width, height);
          break;
        case 4:
          f.daColoring(33, 150, 243,list,width,height);
          break;
        case 5:
          f.daColoring(156, 39, 176,list,width,height);
          break;
        case 6:
          f.daColoring(255, 235, 59,list,width,height);
          break;
        case 7:
          f.daColoring(103, 58, 183,list,width,height);
          break;
        case 8:
          f.daColoring(233, 30, 99,list,width,height);
          break;
        case 9:
          f.daColoring(63, 81, 181,list,width,height);
          break;
      }
    }
  }
  noFill();
}
/*public void colorFace(float x, float y) {
  if(colorEdge) {
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          HalfEdge h = list.getHalfEdge(colorEdgePoint, p);
          if(h != null) {
            //System.out.println("h is not null");
            Face f = new Face(h, list);
            f.printFace();
            switch (colorFaceColor) {
              case 0:
                f.daColoring(255,255,255,list, width, height);
                break;
              case 1:
                f.daColoring(0,0,0,list, width, height);
                break;
              case 2:
                f.daColoring(244, 67, 54,list, width, height);
                break;
              case 3:
                f.daColoring(76, 175, 80,list, width, height);
                break;
              case 4:
                f.daColoring(33, 150, 243,list,width,height);
                break;
              case 5:
                f.daColoring(156, 39, 176,list,width,height);
                break;
              case 6:
                f.daColoring(255, 235, 59,list,width,height);
                break;
              case 7:
                f.daColoring(103, 58, 183,list,width,height);
                break;
              case 8:
                f.daColoring(233, 30, 99,list,width,height);
                break;
              case 9:
                f.daColoring(63, 81, 181,list,width,height);
                break;
            }
          }
        }
      }
    }
    colorEdge = false;
  } else {
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          colorEdgePoint = p;
          colorEdge = true;
        }
      }
    }    
  }
  noFill();
} */

public void insertMode(float x, float y) {
  if(pointclickedbool) {
    pointclickedbool = false;
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          linedrawn = true;
          if(p.getY() - 10 < pointclicked.getY() && p.getY() + 10 > pointclicked.getY()
            && p.getX() - 10 < pointclicked.getX() && p.getX() + 10 > pointclicked.getX()) { }
          else  {
            if (!list.intersectsSomething(p, pointclicked)) { 
              HalfEdge h = new HalfEdge(p, pointclicked);
            }
          }
        }
      }
    }
  } /*else {
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          pointclickedbool = true;
          pointclicked = p;
        }
      }
    }
  }*/
  if(!pointclickedbool && !linedrawn) {
    Point p = new Point(x,y);
    list.addPoint(p);
  }  
  linedrawn = false;
}

public void removePointMode(float x, float y) {
  boolean removePoint = false;
  Point removeThis = null;
  for(Point p: list.getPoints()) {
    if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          removeThis = p;
          removePoint = true;
        }
    }
  }
  if(removePoint) {
    list.removePoint(removeThis);
    //background(255);
  }
}


public void removeEdgeMode(float x, float y) {
  HalfEdge h = list.getHalfEdgeBySinglePoint(x,y,10);
  if(h != null) {
    h.Remove();
  }
}

/*public void removeEdgeMode(float x, float y) {
  if(removeEdge) {
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          HalfEdge h = list.getHalfEdge(removeEdgePoint, p);
          if(h != null) {
            h.Remove();
            //background(255);
          }
          removeEdge = false;
        }
      }
    }
  } else {
    for(Point p: list.getPoints()) {
      if((p.getX() - 10 < x) && (p.getX() + 10 > x)) {
        if((p.getY() - 10 < y) && (p.getY() + 10 > y)) {
          removeEdgePoint = p;
          removeEdge = true;
        }
      }
    }
  }
}*/