class hslider {
  float minvalue, maxvalue;
  int w, h;
  float currvalue;
  float multi;
  int currint;
  boolean over = false, drag = false;
  int x, y;
  String slidername;
  
  hslider(String n, int px, int py, float c, float mi, float ma) {
    minvalue = mi; maxvalue = ma; currvalue = c;
    w = 100; h = 10;
    x = px; y = py;
    multi = (ma-mi)/w;
    currint = int(( (c-mi)/(ma-mi) ) * w);
    slidername = n;
  }
  
  void draw() {
    pushMatrix();
    translate(x,y);
    noStroke();
    if(over) fill(200,50,0); else fill(150,50,0);
    rect(0,0,w,h);
    if(over) fill(250,50,0); else fill(200,50,50);
    rect(0,0,currint,h);
    noFill(); stroke(255,50);
    rect(0,0,w,h);
    fill(255);
    text(slidername,w+10,7);
    popMatrix();
  }
  
  void check() {
    int d = 5;
    over = (mouseX>=x-d && mouseX<=x+w+d && mouseY>=y-d && mouseY<=y+h+d) ? true : false;
    if(over && !drag && mousePressed) {
      drag = true;
    }
    if(drag) {
      currint = mouseX-x;
      if(currint > w) currint = w; else if(currint<0) currint = 0;
      currvalue = minvalue + currint * multi;
      if(!mousePressed) {
        drag = false;
      }
    }
  }
  
}

class menubutton {
  int x, y, w, h;
  String buttonname;
  boolean over = false, activ = false;
  
  menubutton(int px, int py, String n) {
    x = px; y = py; w = 80;
    buttonname = n; h = 15;
  }

  void check() {
    int d = 5;
    over = (mouseX>=x-d && mouseX<=x+w+d && mouseY>=y-d && mouseY<=y+h+d) ? true : false;
  }  
  
  void draw() {
    pushMatrix();
    translate(x,y);
    noStroke();
    
    if(activ) { 
      if(over) fill(255,100,0); else fill(255,50,0);
    } else {
      if(over) fill(200,50,0); else fill(200,60,50);
    }
    rect(0,0,w,h);
    fill(255);
    text(buttonname,5,h-5);
    popMatrix();
  }

}

void mouseReleased() {
  if(playing) {
    if(b_pause.over) {
      playing = false; 
      b_play.activ = true;
      b_pause.activ = false;
    }
  } else {
    if(parameters) {
      for(int i=0; i<p; i++) {
        all[i].sight = hs_sight.currvalue;
        all[i].spymin = hs_mindist.currvalue;
        all[i].spymax = hs_maxdist.currvalue;
      }
    } else if (linkage) {
      if(b_play.over) for(int i=0; i<p; i++) all[i].restart();
    }
    if(b_play.over) {
      playing = true; 
      linkage = false; parameters = false;
      b_linkage.activ = false; b_parameters.activ = false;
      b_play.activ = false;
      b_pause.activ = true;
      
    }
  }
  if(b_restart.over) {
    if(!playing) playing = true;
    linkage = false; parameters = false;
    b_linkage.activ = false; b_parameters.activ = false;
    for(int i=0; i<p; i++) all[i].reset( b + int(random(w-2*b)), b+int(random(h-4*b)) );
  } else if(b_linkage.over) {
    b_linkage.activ = true; b_play.activ = false; b_parameters.activ = false;
    parameters = false; playing = false; linkage = true;
  } else if(b_parameters.over) {
    b_parameters.activ = true; b_play.activ = false; b_linkage.activ = false;
    linkage = false; playing = false; parameters = true;
  }
  
}