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Ducks

By Doug Blank

Duck [] ducks;

int cwidth = 800;
int cheight = 600;

class Duck {
    int x;
    int y;
    int width;
    int height;
    color feather_color;
    int direction;
    int pause;
    
    Duck(int x, int y, int width, int height) {
        this.x = x;
        this.y = y;
        this.width = width;
        this.height = height;
        if (random() < .33) {
            this.feather_color = color(255, 255, 0);
        } else if (random() < .66) {
            this.feather_color = color(120, 0, 0);
        } else {
            this.feather_color = color(128, 128, 128);
        }
        if (random() < .5) {
            this.direction = 0; // left
        } else {
            this.direction = 1; // right
        } 
        this.pause = 0;
        // 2 left turning right
        // 3 right turning left
    }
    
    void draw() {
        // duck head
        fill(this.feather_color);
        ellipse(this.x, this.y, this.width, this.width);
        // body
        rect(this.x - this.width/2, this.y + this.width/2, this.width, this.height - this.width/2);
        // duck bill
        fill(255, 128, 0); // orange
        if (this.direction == 0) { // left
            rect(this.x - this.width, this.y - 5, this.width/2, 5);
            fill(255);
            ellipse(this.x - this.width/3, this.y - this.width/3, 10, 10);
        } else if (this.direction == 1) { // right
            rect(this.x + this.width/2, this.y - 5, this.width/2, 5);
            fill(255);
            ellipse(this.x + this.width/3, this.y - this.width/3, 10, 10);
        } else {
            rect(this.x - 10, this.y - 5, this.width/4, 5);
            fill(255);
            ellipse(this.x + this.width/3, this.y - this.width/3, 10, 10);
            ellipse(this.x - this.width/3, this.y - this.width/3, 10, 10);
        }
    }
    void toggle() {
        if (this.direction == 0) {
            this.direction = 2;
            this.pause = 0;
        } else if (this.direction == 1) {
            this.direction = 3;
            this.pause = 0;
        }
    }
    
    void waddle() {
        // don't move
        if (this.x - this.width/2 < 0) {
            this.toggle();
            this.x = this.width/2;
        }
        if (this.x + this.width/2 > cwidth) {
            this.toggle();
            this.x = cwidth - this.width/2;
        }
        if (this.direction == 0) {
            this.x = this.x - this.width/10;
        } else if (this.direction == 1){
            this.x = this.x + this.width/10;
        } else if (this.direction == 2 && this.pause > 20) {
            this.direction = 1;
        } else if (this.direction == 3 && this.pause > 20) {
            this.direction = 0;
        }
        this.pause = this.pause + 1;
    }
}

void setup() {
    size(cwidth, cheight);
    
    ducks = new Duck[100];
    for (int i = 0; i < ducks.length; i++) {
        ducks[i] = new Duck(random(cwidth), random(cheight), random(10, 70), random(10, 70));
    }
}

void draw() {
    background();
    for (int i = 0; i < ducks.length; i++) {
        ducks[i].waddle();
        ducks[i].draw();
    }
}

Sketch #34:

Run Pause setup() draw()

Sketch #34 state: Loading...