//project 3
//Adam Kochen

int textX = 10;
int gMode = 1;
int score=0;
int healthX = 100;
float horizon=150;
float sunX=50,sunY=30;
float demonLordX=random(500,800), demonLordY= 500;
float heroX=random(0,300) ,heroY=random(300,500);
float dayScore = 2;
float treasureX= random(20,780), treasureY = random(200,600);
float travelX = 0 , travelY = 0;
float bodyW = 40 , bodyH =80;
int n; //# of bird pairs
float x, y; //position
float w , h; //bird size
float birdXA =100 , birdYA=100;
float birdX,birdM=1;
float z = 1;
float mX = 44 , mY = 530;
String pName = " ";
String gName = "The Sceptre of Hades";
String adam = "Adam Kochen";

void setup () {
  size(800,600);
}

void draw(){
//Next Frame
/* if( gMode == 1) {//start screen
 play();
  }
 else if( gMode == 2){//play*/
 scene();
 monkey(10,0,9);
 //health();
 treasure();
 sun();
 demonLord();
 score();
 hero();
 grass();
 
 
 x = 20;
 y = 50;
 w= 20;
 h= 15;
 fill(0);
 flock(n,birdX,y,w,h,birdM);
 birdX=birdX+birdM*5; //moves bird
  if(birdX > width+30*n || birdX < 0-30*n){//bounces bird
  birdReset();
  birdM = -birdM;//swaps bird pos
  }
/* else if(gMode == 3){
   //game over
 }*/
}

  void play(){
    
    noStroke();
    background(255,153,0);
    fill(255,204,0);
    rect(width-750, height-550, width-100, height-100,40);
    fill(0);
    textSize(15);
    fill(255,0,0);
    //text(gMode,10,10);
    text("  Welcome to " + gName + ". You are the newest Demon Lord. Your father  ",100,100);
    text("the previous Demon Lord was slain by the world's greatest hero. Fortunately though",100,118); 
    text("before he died he was able to tell you about his plan to take over the world. He had",100,136);
    text("planned to use the Scepter of Hades to bring all the souls from the underworld back",100,154);
    text("to the overworld and use them as his undead army. Unfortunately the scepter was",100,172);
    text("destroyed during the war of gods hundreds of years ago and the pieces hidden away.",100,190);
    text("Your goal is to find all the pieces and complete your father's plan to take over the",100,208);
    text("world. You can use the shard detector in the upper left corner to help you find the",100,226);
    text("pieces. The detector will tell you how far away you are from the piece nearest to you",100,244);
    text("while avoiding the son of the hero that defeated your father who is currently hunting",100,262);
    text("you.",100,280);  
    text(" So what are you waiting for? Click play already!",250,350);
    fill(204,0,0);
    //rect(350,500,100,50,6);
    fill(0);
    textSize(35);
    //text("play",370,535);
    fill(255,0,0);
    button(1,451,349,551,499,370,535,"Play");
 }

void scene(){
//sky
textSize(11);
  noStroke();
  if(dayScore%2==0) {background(0,200,255);
  } else{ background(0,0,123);
  };
  fill(0,255,0);
  rect(0,horizon,800,500);
  //fill(0);
  text(score,20,700);
  text(gName,680,10);
  }
  
 
void treasure(){
  //draw treasure
  fill(255,0,0,0);
  rect(treasureX,treasureY,10,10);
  //treasure found
  if(dist(demonLordX,demonLordY,treasureX,treasureY)<60){
    treasureX= random(20,780);
    treasureY = random(200,580);
    score= score + 20;
    background(255);
  }
  //draw coorinates
  travelX= dist(demonLordX,demonLordY,treasureX,treasureY);
  fill(100);
  text(travelX,20,43);
}

void sun(){
  //draw sun
 ellipseMode(CORNER);
 if(dayScore%2==0) {fill(255,210,0);
 }else{fill(220);
 };
 noStroke();
 ellipse(sunX,sunY,40,40);
 sunX= sunX +2;
 //reset sun
 if(sunX > width+10){ sunX=50;
   dayScore=dayScore + 1;
 }

}

void demonLord(){
  //make demonLord
  fill(0);
  body(demonLordX,demonLordY,bodyW,bodyH);
  ellipseMode(CORNER);
  strokeWeight(10);
  stroke(183,0,0);
  //horns
  if(mouseX<demonLordX){line(demonLordX+10,demonLordY-33,demonLordX+13,demonLordY-45);
  }
  else{line(demonLordX+30,demonLordY-33,demonLordX+27,demonLordY-45);
  }
  //stay below horizon
    if(demonLordY+50 > horizon ||
    mouseY > horizon) 
    {demonLordY= demonLordY+ (mouseY - demonLordY)/5;}
    demonLordX= demonLordX+ (mouseX - demonLordX)/5;
  
  //Name demonLord
  fill(255,0,255);
  text("Demon",demonLordX,demonLordY+40);
  text("Lord",demonLordX+8,demonLordY+53);
}
void hero(){
  //chase demonLord
  heroX= heroX+ (demonLordX-heroX)/90;
  heroY= heroY+ (demonLordY-heroY)/90; 
  //make hero sword
  strokeWeight(10);
  stroke(183,178,180);
  if(demonLordX>heroX)
  {
  line(heroX+10,heroY+15,heroX+90,heroY+15);//blade
  noStroke();
  fill(0,100,200);
  rect(heroX,heroY+10,50,10); //handle
  rect(heroX+49,heroY,8,30); //hand guard
  }
  else
  {
    line(heroX,heroY+15,heroX-50,heroY+15); //blade
    noStroke();
    fill(0,100,200);
    rect(heroX-10,heroY+10,50,10); //handle
    rect(heroX-17,heroY,8,30); //hand guard
  }
  //make hero
  rectMode(CORNER);
  fill(255);
  body(heroX,heroY,bodyW,bodyH); //body 
  //--ellipse(heroX,heroY-40,40,40); //head
  fill(200,50,200);
  //moving eye
  if(demonLordX<heroX)
    {
      ellipse(heroX+5,heroY-35,10,10);
    }
  else{
        ellipse(heroX+25,heroY-35,10,10);
  }
    
  //name hero
  fill(2);
  text("Hero",heroX+7,heroY+10);
}

void score(){
  //show Score
  fill(255);
  stroke(255,0,255);
  text("Score:"+score,demonLordX,demonLordY+10);
  
  if(dist(demonLordX,demonLordY,heroX,heroY) < 40) {
    eat();
  }
  stroke(0);
}

void bird(float x,float y,float w,float h,float z)
{ 
  noStroke();
  //draw lead bird triangle
  triangle(x,y,x-w*z,y-h/2,x-w*z,y+h/2);
}
  
void flock(int n,float x,float y,float w,float h, float z){
  //followers
  float xx = x; 
  float yy = y; 
  float dy = w/200;
  float dx = h/5 ;
  float ww = w;
  float hh = h;
 
  for( int l = 1; l < n ; l++){
    bird( xx,y-dy, ww,hh,z );      // above
    bird( xx,y+dy, ww,hh,z );     // below
      // shrink bird        
      hh *= 0.9;           
      ww *= 0.95;
      //birds above and below
      xx=  xx - 2*w*z;
      dy = dy + h;
  }
}

void eat(){
  //
  score= score-20;
  background(255,0,0);
  heroX=random(0,750);
  heroY=random(250,550);
}


void mousePressed(){
  //
  demonLordX= mouseX;
  demonLordY= mouseY;}

void body(float x, float y, float w, float h) {
  //make bodies
  rect(x ,y ,w ,h);
  ellipse( x, y-40, 40, 40);
}  

void birdBody(float x, float y) {
  //make birds
  noStroke();
  triangle(x,y,x-30,y-10,x-30,y+10);}

void keyPressed(){
  if(key == 'q') {exit();} ;
  if(key == 'e'){ gMode = 1;}
  if(key == 'w')
  {
    z = -z;
    mY = mY-50;
  }
  if(key == 's')
  {
     z = -z;
     mY = mY + 50;
  }
}

void health(){
 strokeWeight(0);
 fill(255,0,0);
 rect(20,15,20+healthX,10);
 if (healthX<0){gMode = 3;}
}

void birdReset() {
  // resets the flock
  n = int (random(3,5));
}

void button(int bMode, float x, float w, float y, float h, float tx, float ty, String text){
  
    if(mousePressed && mouseX < x && mouseX > w && mouseY < y && mouseY > h) {
      if(bMode==1)
      {
        gMode = 2;
      }
      //else if(bMode==2){
        
    }
  rect(x,y,w-x,h-y,15);
  fill(0);
  text(text,tx,ty);
}
      
void monkey(float x, float y, float size){
  //ladder
  fill(139,80,14);
  rect(x,y,size,800);
  rect(x+60,y,size,800);
  for(float r = 30;r<height;r+=50){
    rect(x,r,60,size/2);
  }  
  //monkey
  float k = 1;
    
  
  
  strokeWeight(5);
  stroke(120,50,10);
  line(mX,mY,mX+20*z,mY-70);
  line(mX,mY,mX-20*z,mY-50);
  line(mX,mY,mX-20*z,mY+70);
  line(mX,mY,mX+20*z,mY+50);
  fill(120,50,10);
  noStroke();
  ellipseMode(CENTER);
  ellipse(mX,mY,40,80);
  fill(130,50,10);
  ellipse(mX,mY-40,30,30);
}

void grass()
{
  for(float g = 5 ; g < width ; g += 10)
  {
    stroke(0);
    strokeWeight(5);
    float gG = g;
    line(gG ,height ,gG,height-10);
  }
}