Unit 1: Day 12
Tasks
This lesson has been designed with flexibility in mind. You can:
- Allow students to begin working through the remaining Unit 1 assignments at their own pace.
- Introduce concepts from the Theory Unit.
12.1 Snowflake Example
- This is a quick, extra example, just to show students some other uses for variables.
- What will happen each time the mouse is pressed? What function is called? What impact does it have?
Unit 1 - Example 11 - Snowflake
let fontSize = 20;
let drawing = '*';
function setup() {
let sketch = createCanvas(600, 400);
sketch.parent("mycanvas");
background(0);
textAlign(CENTER,CENTER);
}//end setup
function draw() {
//background(0);
textSize(fontSize);
fill( random(255), random(255), random(255) );
text (drawing, mouseX, mouseY);
}//end draw
function mousePressed(){
fontSize += 10;
fill( random(255), random(255), random(255) );
text (drawing, mouseX, mouseY);
}//end mousePressed
12.2 Loop Your Letter Example
- This example has some similarities to the above example so you could choose one or the other.
- Introduce the concept of substring - could also be substituted using charAt(0) as part of a string.
- AAP-2.D.2: A substring is part of an existing string.
New Example - Loop Your Letter
let first
let numLetters
let xtemp, ytemp;
let tsize;
function setup() {
createCanvas(600, 400);
background(0);
textAlign(CENTER,CENTER); //this is new
first = window.prompt("Please enter your name (as a String)")
first = first.substring(0,1)
numLetters = 1*window.prompt("Enter an int (not a float) between 10 and 100");
tsize = numLetters * 2;
}//end setup
function draw() {
}//end draw
function mousePressed(){
background(0)
noStroke();
for(let i=0; i
fill( random(255), random(255), random(255) );
textSize(20+random(tsize));
xtemp = random(mouseX-tsize, mouseX+tsize);
ytemp = random(mouseY-tsize, mouseY+tsize);
text(first, xtemp, ytemp)
}//end for loop
fill(0,0,155)
textSize(200);
text(first, mouseX, mouseY)
}//end mousePressed
12.3 Assignment 3 - Team Points
- This assignment gets them focused on using variables with simple math
Continue to Unit 1: Day 13 »
