//Interactive Toy
// Jackson Lanaus
// Target Practice
//  9/26/2017

// creating the varibles, but not statign them as that is needed elsewhere for the reset key to work
float circleLocX ;
float circleLocY ;
float circlelocX2 ;
float circleLocY2 ;
float speedX ;
float speedY ;
float speedX2 ;
float speedY2 ;
int score ;
int shots ;
float gridX ;
float gridY ;
float spacing ;

void setup() {
  size(400, 400);
  noCursor();
   // stating the variables (need to be stated in setup to make the reset key work)
  circleLocX = 56;
  circleLocY = 240;
  circlelocX2 = 183;
  circleLocY2 = 256;
  speedX = -2.5;
  speedY = 3;
  speedX2 = random(3-8);
  speedY2 = random(3-8);
  score = 0;
  shots = 15;
  gridX = 0;
  gridY = 0;
  spacing = 25;
} 

void draw() {
  background(0);
  stroke(0);
  fill(100);

 

  grid();
  displayStats();
  target1();
  target2();
  reticle();
  constrainTarget();
  displayStats();
  endScreen();
  restart();
}

void mousePressed() {
  firing();
}



void endScreen() {
  // entering an end screen when all of "shots" are taken
  if (shots <= 0) {
    background(188, 30, 30);
    fill(255);
    textSize(40);
    text("Final score is: "+score, 60, height/2);
    text("please EXIT or hit R", 15, (height/2)+50);
    
  }
}


/////////////////////
// Function Def's //
////////////////////

// display the stats at the top left
void displayStats() {
  fill(255);
  textSize(20);
  text("Score: "+score, 10, 20);
  text("Shots: "+shots, 10, 50);
}


// keep the targets on screen
void constrainTarget() {
  if ((circleLocX>width)||(circleLocX < 0)) {   // moving the target along the X axis, until it reaches the full width 
    speedX = speedX * -1;
  }
  if ((circleLocY>height)||(circleLocY < 0)) {  // moving the target along the Y axis, until it reaches the full width 
    speedY = speedY * -1;
  }
  if ((circlelocX2>width)||(circlelocX2 < 0)) {   // moving the target 2 along the X axis, until it reaches the full width 
    speedX2 = speedX2 * -1;
  }
  if ((circleLocY2>height)||(circleLocY2 < 0)) {  // moving the target 2 along the Y axis, until it reaches the full width 
    speedY2 = speedY2 * -1;
  }
}


// firing sequence
void firing() {
  if (mousePressed == true) {
    shots = shots-1;
    // the "dist" means if the distance of mouseX and mouseY (mouse location) is less than 32 pixles of "circleLocX" and "circleLocY" (target location) then run this code
    if (dist(mouseX, mouseY, circleLocX, circleLocY)<=32) { 
      score = score+1;
      // same as above but with the second target
    } else if (dist(mouseX, mouseY, circlelocX2, circleLocY2)<=16) {
      score = score+2;
    }
  }
}


// draw the reticle on the mouse
void reticle() {
  //reticle
  noStroke();
  fill(252, 0, 0);
  ellipse(mouseX, mouseY, 5, 5);
}


// draw the first target, and move it
void target1() {
  //target
  fill(255, 180, 4);
  stroke(0);
  ellipse(circleLocX, circleLocY, 32, 32);
  circleLocX = circleLocX + speedX;
  circleLocY = circleLocY + speedY;
}


// draw the second target, and move it
void target2() {
  //target 2
  stroke(0);
  fill(random(255), random(255), random(255));
  ellipse(circlelocX2, circleLocY2, 16, 16);
  circlelocX2 = circlelocX2 + speedX2;
  circleLocY2 = circleLocY2 + speedY2;
}


// background grid
void grid() {
  stroke(27, 203, 40);
  strokeWeight(2);

  gridX = 0;
  while (gridX < width) {
    line(gridX, 0, gridX, height);
    gridX = gridX + spacing;
  }
  gridY = 0;
  while (gridY < height) {
    line(0, gridY, width, gridY);
    gridY = gridY + spacing;
  }
}


// if R is hit rest (run setup)
// thanks to shirley tong's monsters attack for an excelent example: http://www-acad.sheridanc.on.ca/PROG14998/2015/interactive-toy/interactive_toy_22/index.html#
void restart() {
  if (keyPressed) {
    if (key=='r' || key == 'R') {
      setup();
    }
  }
}