processingで書いてみた

投稿者: | 2014年12月26日

processingでプログラムを書いてみた。どんな動作をするかは動かしてのおたのしみ。


boolean hitwall(float pos, int max, int size) {
float radius = size / 2;
if ( (pos+radius > max ) || (pos - radius < 0) ) { return true; } return false; } class Ball { float x, y; float x_vec, y_vec; float x_speed, y_speed; int ballsize; int r, g, b; Ball(int tsize) { x=width/2; y=height/2; x_vec = 1; y_vec = 1; x_speed=3; y_speed=3; ballsize=tsize; r=(int)random(64, 255); g = (int)random(64, 255); b= (int)random(64, 255); } float nextPosX(float x, int size) { if ( hitwall(x, width, size) ) { float old_speed; old_speed = x_speed; x_vec *= -1; x_speed=random(5, 8); return x_vec*old_speed + x; } return x_vec*x_speed + x; } float nextPosY(float y, int size) { if ( hitwall(y, height, size) ) { float old_speed; old_speed = y_speed ; y_speed=random(6, 12); y_vec *= -1; return y_vec*old_speed + y; } return y_vec*y_speed + y; } void display() { fill(r, g, b); ellipse(x, y, ballsize, ballsize); } void move() { x = nextPosX(x, ballsize); y = nextPosY(y, ballsize); } } int numBalls = 500; Ball[] balls = new Ball[numBalls]; int maxballsize=30; void setup() { size(displayWidth, displayHeight-80); numBalls = ((width * height) / (maxballsize*maxballsize))/4; for (int i=0; i

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