Après le travail sur les sites WordPress et les bases HTML et CSS voici le temps de processing et processing JS
Place à la réalisation de jeu sous processing.
[p5js canvas]
float theta;
void setup() { size(640, 360); }
void draw() {
background(0);
frameRate(30);
stroke(255); // Let’s pick an angle 0 to 90 degrees based on the mouse position
float a = (mouseX / (float) width) * 90f; // Convert it to radians
theta = radians(a); // Start the tree from the bottom of the screen
translate(width/2,height); // Draw a line 120 pixels
line(0,0,0,-120); // Move to the end of that line
translate(0,-120); // Start the recursive branching!
branch(120); }
void branch(float h) { // Each branch will be 2/3rds the size of the previous one
h *= 0.66;
// All recursive functions must have an exit condition!!!!
// Here, ours is when the length of the branch is 2 pixels or less
if (h > 2) { pushMatrix(); // Save the current state of transformation (i.e. where are we now)
rotate(theta); // Rotate by theta
line(0, 0, 0, -h); // Draw the branch
translate(0, -h); // Move to the end of the branch
branch(h); // Ok, now call myself to draw two new branches!!
popMatrix(); // Whenever we get back here, we « pop » in order to restore the previous matrix state
// Repeat the same thing, only branch off to the « left » this time!
pushMatrix();
rotate(-theta);
line(0, 0, 0, -h);
translate(0, -h);
branch(h);
popMatrix();
}
}
[/p5js]

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