diff --git a/BouncingWithVectors/BouncingWithVectors.pde b/BouncingWithVectors/BouncingWithVectors.pde index 2683b50..6f2d203 100644 --- a/BouncingWithVectors/BouncingWithVectors.pde +++ b/BouncingWithVectors/BouncingWithVectors.pde @@ -1,37 +1,51 @@ //declare variables -float x, y, velX, velY, diam; +int count=20; +float diam; + +//float loc.x,loc.y +PVector[] loc= new PVector[count]; //replaces loc.x and loc.y + +//float vel.loc.x, vel.loc.y +PVector[] vel= new PVector[count]; //replces vel.loc.x and vel.loc.y + void setup() { //set size of canvas size(800, 600); - - //initialize variables - x = width/2; - y = height/2; - diam = 80; - velX = random(-5, 5); - velY = random(-5, 5); + for (int i=0; i= 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 (y + diam/2 >= height) { - velY = -abs(velY); - } else if (y - diam/2 <= 0) { - velY = abs(velY); + //bounce ball if it hits walls + if (loc[i].x + diam/2 >= width) { + vel[i].x = -abs(vel[i].x); //if the ball hits the right wall, assign loc.x velocitloc.y the negative version of itself + } else if (loc[i].x - diam/2 <= 0) { + vel[i].x = abs(vel[i].x); //if the ball hits the left wall, assign loc.x velocitloc.y the positive version of itself + } + if (loc[i].y + diam/2 >= height) { + vel[i].y = -abs(vel[i].y); + } else if (loc[i].y - diam/2 <= 0) { + vel[i].y = abs(vel[i].y); + } } +} \ No newline at end of file diff --git a/Wanderer/Wanderer.pde b/Wanderer/Wanderer.pde index b6ce247..033529d 100644 --- a/Wanderer/Wanderer.pde +++ b/Wanderer/Wanderer.pde @@ -1,37 +1,52 @@ //declare variables -float x, y, velX, velY, diam; +float diam; +PVector loc; +PVector vel; +PVector acc; void setup() { + colorMode(HSB, 360, 100, 100, 100); + noStroke(); //set size of canvas size(800, 600); - + loc=new PVector(width/2, height/2); //initialize variables - x = width/2; - y = height/2; + //x = width/2; + //y = height/2; diam = 80; - velX = random(-5, 5); - velY = random(-5, 5); + //define velocity + vel = PVector.random2D(); + vel.mult(1); + //define acceleration + acc= PVector.random2D(); + acc.mult(.09); } void draw() { //draw background to cover previous frame - background(0); + background(255); //draw ball - ellipse(x, y, diam, diam); + fill(frameCount%360, 70, 80); + ellipse(loc.x, loc.y, diam, diam); + vel.add(acc); //add acceleration to velocity + vel.limit(30); //limit max velocity of ball + acc= PVector.random2D(); + acc.mult(.09); //add velocity to position - x += velX; - y += velY; + loc.x += vel.x; + loc.y += vel.y; //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