Modify a text file: $/birdfall.pde
$/birdfall.pde
float xBird=50, yBird=50; float dx=2, dy=1; boolean isFalling=false; void setup() { size(600,400);} void draw() { //// Draw moving bird (or falling bird); background(200,200,255); moveBird(); drawBird(xBird,yBird); } void keyPressed() { //// Check which key was pressed. if (key == 'F') isFalling= true; else isFalling= false; } void moveBird() { //// DContinue or fall. if (isFalling) { yBird += dy; }else{ xBird += dx; yBird += dy; } if(xBird>width) dx= -dx; if(yBird>height) dy= -dy; } void drawBird( float x, float y) { //// Draw the bird at (x, y); fill(255,0,255); triangle(x,y, x+25,y, x,y+15); }