/**
Project II
Jenna Klima
Sep 22nd, 2014 

Globals
float herocastiaX, herocastiaY;
float monstermaurusX, monstermaurusY;
castiaX = castiaX + ( maurusX - castiaX ) / 50;
castiaY = castiaY + ( maurusY - castiaY ) / 50;
**/

int score = 0;
int step;

float sunX = 100, sunY = 100;
float sunD=50;      // Diameter of sun
float sunZ=30;      // Length of rays
float horizon;

float castiaX, castiaY;
float castiaFast=30;
float maurusX, maurusY;
float maurusFast=150;
float goldX = 200, goldY = 200;
float x, y, w, h;

float bird1X, bird1Y = 20, bomb1Y = 1;
float bird2X, bird2Y = 40, bomb2Y = 1;
float bird3X, bird3Y = 60, bomb3Y = 1;
float bird4X, bird4Y = 80, bomb4Y = 1;

void setup ( ) {
  //setup
  size ( 1000, 600 );
  horizon = height / 4;
  sunY = horizon / 2;
  castiaX = width / 2;
  castiaY = height / 2;
  maurusX = 30;
  maurusY = random ( horizon, height - 60 );
  resetI ( x, y, w, h, goldX, goldY ); 
}
void resetI ( float x, float y, float w, float h, float goldX, float goldY ) {
  // ????
  castiaX = 30;
  castiaY = random ( horizon, height - 60 );

  maurusX = width - 30;
  maurusY = random ( horizon, height - 60 );
  maurusFast = 150;

  goldX = random ( width / 4, width * 3 / 4 );
  goldY = random ( horizon + 20, height - 20 );
}
void draw ( ) {
  //next frame
  step= step + 1;
  scene ( );
  scoring ( );
  birds ( );
  gold ( );
  monster ( x, y, w, h );
  hero ( x, y, w, h );
}

void scene ( ) {
  //sky, sun, etc.
  background ( 200, 200, 255 );
  noStroke ( );
  fill ( 255, 255, 0 );

  ellipse ( sunX, sunY, sunD, sunD );
  fill ( 200, 255, 200 );
  rectMode ( CORNER );
  rect ( 0, horizon, width, height * 3 / 4 );

    //sun moves across sky
    if ( sunX > width ) {
      sunX = 0;
      sunY = random ( 30, horizon - 30 );
      score = score + 10;
    }
  sunX = sunX + 1;
  
  //sun rays
  strokeWeight ( 3 );
  stroke ( 255, 255, 100 );

  
stroke(0); 
/*  
  line ( sunX + 40, sunY + 40, sunX + 18, sunY + 18 );
  line ( sunX - 40, sunY - 40, sunX - 18, sunY - 18 );
*/  
  line ( sunX + 40, sunY - 40, sunX + 18, sunY - 18 );
  line ( sunX - 40, sunY + 40, sunX - 18, sunY + 18 );
  
  line ( sunX, sunY + 25, sunX, sunY + 55 );
  line ( sunX, sunY - 25, sunX, sunY - 55 );
  
  line ( sunX + 25, sunY, sunX + 55, sunY );
  line ( sunX - 25, sunY, sunX - 55, sunY );


  stroke ( 255, 255, 100 );
//--  rays( 40, 40, 18, 18 );
  rays( 0.72*sunD/2, 0.72*sunD/2 );
  rays( 40, 40 );

  rays( 0, sunZ+sunD/2 );
  rays( sunZ+sunD/2, 0 );


  fill ( 0 );
//--    text ( sunX, sunX, sunY + 40 );
  text ( "Project II Requirements", width - 400, 50 );
  text ( "GOLD=" + score, width - 200, 50 );
  text ( "Jenna Klima", width - 975, 575 );
}
void rays( float c, float d ) {
  // Draw a pair of rays (start to stop); 
  line ( sunX, sunY, sunX + c, sunY + d );
  line ( sunX, sunY, sunX - c, sunY - d );
}


void birds ( ) {
  //draw & move 3 birds
  strokeWeight ( 1 );
  stroke ( 0 );
  bird1X += random ( 3, 5 );
  bird2X += random ( 2, 4 );
  bird3X += random ( 1, 2 );
  bird4X += random ( 2, 3 );
  //reset birds after flight completed
  if ( bird1X > width + 500 ) {
    bird1X = 80;
    bird1Y = random ( 20, horizon );
  }
  if ( bird2X > width + 500 ) {
    bird2X = 80;
    bird2Y = random ( 20, horizon );
  }
  if ( bird3X > width + 500 ) {
    bird3X = 80;
    bird3Y = random ( 20, horizon );
  }
  if ( bird4X > width + 55 ) {
    bird4X = 80;
    bird4Y = random ( 20, horizon );
  }
  //draw birds & bombs
  fill ( 255, 0, 0 );//---------------------bird 1 is red
  //--  drawBird ( bird1X, bird1Y + 5 - random ( 5 ) );//----makes red jitter
  drawBird ( bird1X, bird1Y );
  bomb1Y = updateBomb ( bomb1Y );
  drawBomb ( bird1X, bomb1Y );
  
  fill ( 255, 155, 0 );
  drawBird ( bird2X, bird2Y );
  bomb2Y = updateBomb ( bomb2Y );
  drawBomb ( bird2X, bomb2Y );

  fill ( 255, 255, 0 );
  drawBird ( bird3X, bird3Y );
  bomb3Y = updateBomb ( bomb3Y );
  drawBomb ( bird3X, bomb3Y );

  fill ( 0, 255, 255 );
  drawBird ( bird4X, bird4Y );
  bomb4Y = updateBomb ( bomb4Y );
  drawBomb ( bird4X, bomb4Y );
}
void drawBird ( float x, float y ) {
  //draw one bird
  //--  triangle ( x, y, x - 60, y - 10, x - 60, y + 10 );//------body
  ellipse ( x, y, 50, 25 );
  //make the wings flap every 1/2 sec
  float flap;
  int n = ( step / 30 ); 
  if ( n %4 == 0) flap = 20;
  else if ( n %4 == 1 ) flap = -10;
  else if ( n %4 ==2 ) flap = -20;
  else flap =+ 10;
  birdWing ( x, y, flap );
  //--  text( flap, x + 12, y + 30 );
  //--  text( "step:"+step, x+12, y+40 );
}
void birdWing ( float x, float y, float yup ) {
  //draw the wing up OR down
//--  triangle ( x - 20, y, x - 40, y, x - 40, y - yup );
  triangle ( x + 12, y, x - 12, y, x-30, y-yup );
}
float updateBomb ( float y) {
  //calculate new Y value for bomb by adding 5 if >0 and <height
  if ( y <= 0 || y > height ) return 0;
  return y + 1 + y / 50;//------------approx gravity by using y/50
}
void drawBomb ( float x, float y ) {
  //draw a bomb if y>0
  if ( y <= 0 ) return;
  ellipse ( x, y, 20, 30 );
  stroke ( 255, 0, 0 );
  fill ( 255, 0, 0, 50 );//-----------red glow surrounds bomb
  ellipse ( x, y, 50, 50 );
  stroke ( 0 );
  fill ( 0 );
  triangle (x, y + 3, x - 15, y - 12, x + 15, y - 12 );
}
void gold ( ) {
  //gold
  strokeWeight ( 1 );
  stroke ( 0 );
  fill ( 255, 200, 0 );
  ellipse ( goldX, goldY, 30, 30 );
}
void hero ( float x, float y, float w, float h ) {
  //move & draw Castia
  if ( mousePressed ) {
    castiaX = castiaX + ( mouseX - castiaX ) / castiaFast;
    castiaY = castiaY + ( mouseY - castiaY ) / castiaFast;
  }
  else {
    castiaX = castiaX + ( goldX - castiaX ) / castiaFast;
    castiaY = castiaY + ( goldY - castiaY ) / castiaFast;
  }
  if ( castiaY < horizon ) { castiaY = horizon;
  }
  float castiaW=50, castiaH=80;
  //draw chest
  fill ( 0, 150, 0 );
  rectMode ( CENTER );
//--    rect ( castiaX, castiaY, 50, 80 );
  rect ( castiaX, castiaY, castiaW, castiaH );
  fill ( 127, 255, 0 );
//--  ellipse ( castiaX, castiaY - 40, 40, 50 );
  ellipse ( castiaX, castiaY - castiaH/2, 40, 50 );

  //arms
  rectMode ( CORNERS );
  fill ( 0, 50, 0 );
  rect ( castiaX - 45, castiaY - castiaH/2, castiaX - 25, castiaY + 30 );
  fill ( 0, 50, 0 );
  rect ( castiaX + 45, castiaY - 40, castiaX + 25, castiaY + 30 );

  //butt
  fill ( 0, 50, 0 );
  rect ( castiaX - 25, castiaY + 35, castiaX + 25, castiaY + 50 );

  //legs  
  fill ( 0, 50, 0 );
  rect ( castiaX - 15, castiaY + 35, castiaX - 30, castiaY + 110 );
  fill ( 0, 50, 0 );
  rect ( castiaX + 15, castiaY + 35, castiaX + 30, castiaY + 110 );

  //vest
  fill ( 0, 255, 0 );
  triangle ( castiaX - 25, castiaY - 15, castiaX + 25, castiaY - 15, castiaX, castiaY + 10 );
  fill ( 0 );
  text ( "Castia", castiaX - 17, castiaY );

    if ( dist ( goldX, goldY, castiaX, castiaY ) < 75 ) {
      score = 200;
      goldX = random ( 50, width - 50 );
      goldY = random ( horizon, height - 50 );
    }
}
void monster ( float x, float y, float w, float h ) {
  ////move and draw Maurus
  //chase Castia
  maurusX = maurusX + ( castiaX - maurusX ) / maurusFast;
  maurusY = maurusY + ( castiaY - maurusY ) / maurusFast;

  if ( dist ( castiaX, castiaY, maurusX, maurusY ) < 100 ) { eat ( x, y, w, h );
  }
  //draw Maurus
  fill ( 150, 0, 0 );
  rectMode ( CENTER );
  rect ( maurusX, maurusY, 70, 90 );
  fill ( 255, 127, 0 );
  ellipse ( maurusX, maurusY - 40, 50, 60 );

  //arms
  rectMode ( CORNERS );
  fill ( 50, 0, 0 );
  rect ( maurusX - 60, maurusY - 45, maurusX - 35, maurusY + 30 );
  fill ( 50, 0, 0 );
  rect ( maurusX + 60, maurusY - 45, maurusX + 35, maurusY + 30 );

  //butt
  fill ( 50, 0, 0 );
  rect ( maurusX - 35, maurusY + 35, maurusX + 35, maurusY + 50 );

  //legs  
  fill ( 50, 0, 0 );
  rect ( maurusX - 15, maurusY + 35, maurusX - 30, maurusY + 110 );
  fill ( 50, 0, 0 );
  rect ( maurusX + 15, maurusY + 35, maurusX + 30, maurusY + 110 );

  //vest
  fill ( 255, 0, 0 );
  triangle ( maurusX - 35, maurusY - 10, maurusX + 35, maurusY - 10, maurusX, maurusY + 20 );
  fill ( 0 );
  text ( "Maurus", maurusX - 19, maurusY );
}
void scoring ( ) {
}
void eat ( float x, float y, float w, float h ) {
  //Monster kills hero. Deduct 200 from score
  score = score - 200;
  background ( 255, 0, 0 );
  castiaX = 40;
  castiaY = random ( 30, height - 30 );
  maurusX = width;
  maurusY = random ( 30, height - 30 );
}
void keyPressed ( ) {
  //handle keys
  if ( key == 'q' ) exit ( );
  if ( key == 'r' ) resetI ( x, y, w, h, goldX, goldY );
  //drop bomb when #s 1 or 2 or 3 or 4 keys pressed
  if ( key == '1' ) bomb1Y = bird1Y;
  if ( key == '2' ) bomb2Y = bird2Y;
  if ( key == '3' ) bomb3Y = bird3Y;
  if ( key == '4' ) bomb4Y = bird4Y;
  if ( key == '*' ) {
    //drops all bombs
    bomb1Y = bird1Y;
    bomb2Y = bird2Y;
    bomb3Y = bird3Y;
    bomb4Y = bird4Y;
  }
  if (key == 'm') maurusFast *= 2;
  if (key == 'M') maurusFast *= 0.5;
  if (key == 'c') castiaFast *= 2;
  if (key == 'C') castiaFast *= 0.5;
  // Modify sun Diameter & rays
  if (key == 'S') sunD +=5;
  if (key == 's') sunD -=5;
  if (key == 'z') sunZ -=2;
  if (key == 'Z') sunZ +=2;
}
void mousePressed ( ) {
  castiaX = castiaX + ( mouseX - castiaX ) / 30;
  castiaY = castiaY + ( mouseY - castiaY ) / 30;
}
void mouseReleased ( ) {
  castiaX = castiaX + ( goldX - castiaX ) / 30;
  castiaY = castiaY + ( goldY - castiaY ) / 30;
  score = score + -50;
}