/* Doodle Book Interactive Drawing
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Creator: CJ O'Heany
Introduction to Media Computation
September 17, 2018
Instructor: Nicolas Hesler
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Move the mouse around to draw on the screen.
Click the mouse to reset the page, not the entire screen.
Press and hold a key to slow down the framerate to draw straight lines.
Release the key to reset the framerate back to 60.
Press the mouse and move to thicken the drawing line
Release the mouse to reset the lines thickness
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Draw to your hearts content!
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void setup(){
  
//Sets up defaults for the majority of the drawing
size(400,400);
noStroke();
rectMode(CORNERS);
background(225,200,130);
frameRate(60);

/*Drawing in setup allows for me to reset certain areas and allow the player to draw
Gradiant shadow in the foreground */
fill(110,100,65);
rect(0,390,400,400);
fill(160,145,110);
rect(0,380,400,390);

//The light flash in the top right corner for aesthetic purposes
fill(255,235,190);
quad(450,-50,370,200,360,40,200,20);

//Top Page (The layer that will be mainly written on
fill(255);
stroke(128);
rect(-1,50,310,350);
}

void draw(){

/*This is the code that draws a line
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It is above the rest of the code so I can reset the strokeWeight later on */
line(pmouseX,pmouseY,mouseX,mouseY);
strokeWeight(1);

/*Sketchbook Drawings
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Black Exterior
This isn't a single rectangle so I can draw on the top page*/
noStroke();
fill(0);
rect(-5,30,330,50,5);
rect(310,30,330,370,5);
rect(-5,350,330,370,5);

/*Back Page (White between the inner page lines)
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Is not a single rectangle for the same reason that the "Black Exterior" is */
strokeWeight(1);
fill(255);
rect(0,40,320,50);
rect(310,40,320,360);
rect(0,350,320,360);


/*Inner pages (lines)
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The lines grow or shrink to simulate depth
Top*/
stroke(128);
line(0,42,318,42);
line(0,44,316,44);
line(0,46,314,46);
line(0,48,312,48);

//Bottom
line(0,352,312,352);
line(0,354,314,354);
line(0,356,316,356);
line(0,358,318,358);

//Side
line(312,352,312,48);
line(314,354,314,46);
line(316,356,316,44);
line(318,358,318,42);

/*Eraser
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The rectangles are the faces facing directly towards the POV
The quads are meant to simulate depth
Eraser (Whites) */
fill(255);
stroke(0);
rect(340,100,380,140);

//Eraser (Whites) *DEPTH*
quad(380,100,390,110,390,140,380,130);

/*Eraser Case
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Set the case color to blue */
fill(75,100,255);
rect(339,130,381,220);

//Eraser case depth
quad(381,130,391,140,391,230,381,220);

//Sets the background colour to a darker blue for shading effect
fill(20,50,255);
quad(341,220,381,220,391,230,351,230);
}

/*The following methods are meant as additional tools for the user to use
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This method slows down the framerate of the draw method allowing the user
to draw straight lines easier
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keyPressed() only changes anything while a key is pressed and remains pressed*/
void keyPressed(){
frameRate(2);
}

/*This method refreshes the framerate back to its original setting.
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keyReleased() triggers when a key is released from being pressed
thus in synergy with keyPressed(), an effect is created */
void keyReleased(){
frameRate(60);
}

/*This method makes the stroke weight (how thick the lines are) larger
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mouseDragged() only triggers when the mouse button is pressed and
is simultaneously moved */
void mouseDragged(){
strokeWeight(5);
}

/*This method resets the stroke weight back to 1 pixel (the default)
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mouseReleased() only triggers when the mouse is released from being
pressed */
void mouseReleased(){
strokeWeight(1);
}

/*This method resets the white canvas of the sketchbook
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mouseClicked() works when a mouse is pressed and released in a short amount
of time.  This is different from triggering mousePressed() and mouseReleased()
due to the 2 requirements for this function to work */
void mouseClicked(){
fill(255);
stroke(128);
rect(-1,50,310,350);
}