diff --git a/BouncingWithVectors/BouncingWithVectors.pde b/BouncingWithVectors/BouncingWithVectors.pde index 2683b50..aad7d98 100644 --- a/BouncingWithVectors/BouncingWithVectors.pde +++ b/BouncingWithVectors/BouncingWithVectors.pde @@ -1,16 +1,27 @@ //declare variables -float x, y, velX, velY, diam; +float diam; + +//float x, y +PVector loc; //replaces x and y + +//float velX and velY +PVector vel = new PVector(2, 2); void setup() { //set size of canvas size(800, 600); //initialize variables - x = width/2; - y = height/2; + //x = width/2; + //y = height/2; + loc = new PVector(width/2, height/2); + diam = 80; - velX = random(-5, 5); - velY = random(-5, 5); + + //velX = random(-5, 5): + //velY = random(-5, 5); + vel = PVector.random2D(); + vel.mult(5); } void draw() { @@ -18,20 +29,22 @@ void draw() { background(0); //draw ball - ellipse(x, y, diam, diam); + ellipse(loc.x, loc.y, diam, diam); //add velocity to position - x += velX; - y += velY; - + //loc.x += vel.x; + //loc.y += vel.y; + loc.add(vel); + //bounce ball if it hits walls - if (x + diam/2 >= width) { - velX = -abs(velX); //if the ball hits the right wall, assign x velocity the negative version of itself - } else if (x - diam/2 <= 0) { - velX = abs(velX); //if the ball hits the left wall, assign x velocity the positive version of itself + if (loc.x + diam/2 >= width) { + vel.x = -abs(vel.x); //if the ball hits the right wall, assign loc.x velocity the negative version of itself + } else if (loc.x - diam/2 <= 0) { + vel.x = abs(vel.x); //if the ball hits the left wall, assign loc.x velocity the positive version of itself } - if (y + diam/2 >= height) { - velY = -abs(velY); - } else if (y - diam/2 <= 0) { - velY = abs(velY); + if (loc.y + diam/2 >= height) { + vel.y = -abs(vel.y); + } else if (loc.y - diam/2 <= 0) { + vel.y = abs(vel.y); } +} \ No newline at end of file diff --git a/Wanderer/Wanderer.pde b/Wanderer/Wanderer.pde index b6ce247..bf25869 100644 --- a/Wanderer/Wanderer.pde +++ b/Wanderer/Wanderer.pde @@ -1,37 +1,65 @@ //declare variables -float x, y, velX, velY, diam; +//float x, y, velX, velY, diam; +float diam; +PVector loc, vel, acc; + + void setup() { //set size of canvas size(800, 600); + background(0); + colorMode(HSB, 360, 100, 100, 95); //initialize variables - x = width/2; - y = height/2; + //x = width/2; + //y = height/2; + loc = new PVector(width/2,height/2); + + //velX = random(-5, 5); + //velY = random(-5, 5); + vel = PVector.random2D(); + vel.mult(1); + acc = PVector.random2D(); + acc.mult(.01); + diam = 80; - velX = random(-5, 5); - velY = random(-5, 5); } + + void draw() { + fill(frameCount%360, 75, 85); + //pick a random acceleration + acc = PVector.random2D(); + acc.mult(.1); + //draw background to cover previous frame - background(0); + //background(0); //draw ball - ellipse(x, y, diam, diam); + ellipse(loc.x, loc.y, diam, diam); + + //add acceleration to velocity + vel.add(acc); + + //limit velocity to avoid being unable to overcome large velocity with small acceleration + vel.limit(15); //add velocity to position - x += velX; - y += velY; + //x += velX; + //y += velY; + loc.add(vel); //wrap the ball's position - if (x + diam/2 >= width) { - x = -diam/2; - } else if (x - diam/2 <= 0) { - x = width + diam/2; + if (loc.x >= width) { + loc.x = 0; + } else if (loc.x <= 0) { + loc.x = width; } - if (y + diam/2 >= height) { - y = -diam/2; - } else if (y - diam/2 <= 0) { - y = height + diam/2; + if (loc.y >= height) { + loc.y = 0; + } else if (loc.y <= 0) { + loc.y = height; } +} \ No newline at end of file