/* PDM Course: Intro to Coding Unit

Making Functions: Part 1 - Creating your own function
*/

//these vairables help to create a "lagging behind" //motion between the pink ghost and our mouse cursor
let xLag = 0;
let yLag = 0;

function setup() {
  createCanvas(windowWidth, windowHeight);
}

function draw() {
  background(200);
  yLag = yLag + (mouseY - yLag) * 0.04;

  xLag = xLag + (mouseX - xLag) * 0.04;

  /* now we call for function ghost() to be run inside of the draw() function block. We created paramteres inside of our function, so we need to add arguments behind ghost(), passing them into our new function in the order we specified below. This specifies how our ghosts look */

  ghost(200, 345, 1.5, "green");

  // function call - uses the function  
}

// function declaration - creates the function 
function ghost(ghostX, ghostY, size, gColor) {
  push();
  angleMode(DEGREES);
  fill(gColor); //body color
  translate(ghostX, ghostY); //Ghost location
  noStroke(); //no outline on body shapes
  scale(size);
  rect(-50, 0, 100, 60);
  ellipse(0, 0, 100, 100);
  triangle(-50, 60, -25, 60, -50, 67);
  triangle(-15, 60, 10, 60, -1, 67);
  triangle(25, 60, 50, 60, 50, 67);
  fill(0); //mouth color
  arc(0, 35, 25, 15, 200, 310); //Ghost mouth
  stroke(255); //white stroke color for Ghost eyeballs
  strokeWeight(4); // eyeball size
  fill(71, 96, 255); //eyeball color
  ellipse(25, 0, 25, 25); //Ghost's left eye
  ellipse(-25, 0, 25, 25); //Ghost right eye
  pop();
}