soylog

2016年2月8日

Ball3D[] balls;
static final int numBalls = 50;
float fl = 250;
float vpX = 0;
float vpY = 0;
 
void setup() {
  size(960, 540);
  frameRate(30);
  initialize();
}
 
void initialize() {
  smooth();
  vpX = width/2;
  vpY = height/2;
  balls = new Ball3D[numBalls];
  for(int i=0; i<numBalls; i++) {
    balls[i] = new Ball3D(5.0);
    balls[i].xpos = random(200) - 100;
    balls[i].ypos = random(200) - 100;
    balls[i].zpos = random(200) - 100;
    balls[i].setFillColor(color(0));   
  }
}
 
void draw() {
  background(255);
  float angleX = (mouseY - vpY) * 0.001;
  float angleY = (mouseX - vpX) * 0.001;
  for(int i=0; i<numBalls; i++) {
    Ball3D ball = balls[i];
    rotateX(ball, angleX);
    rotateY(ball, angleY);
    doPerspective(ball);
  }
  for(int i = 1; i < numBalls; i++) {
    line(balls[i-1].x, balls[i-1].y, balls[i].x, balls[i].y);
  }
   
  for(int i=0; i<numBalls; i++) {
    balls[i].update();
  }
}
 
void rotateX(Ball3D ball, float angleX) {
  float cosX = cos(angleX);
  float sinX = sin(angleX);
  float y1 = ball.ypos * cosX - ball.zpos * sinX;
  float z1 = ball.zpos * cosX + ball.ypos * sinX;
  ball.ypos = y1;
  ball.zpos = z1;
}
 
void rotateY(Ball3D ball, float angleY) {
  float cosY = cos(angleY);
  float sinY = sin(angleY);
  float x1 = ball.xpos * cosY - ball.zpos * sinY;
  float z1 = ball.zpos * cosY + ball.xpos * sinY;
  ball.xpos = x1;
  ball.zpos = z1;  
}
 
void doPerspective(Ball3D ball) {
  if(ball.zpos > -fl) {
    float scale = fl / (fl + ball.zpos);
    ball.scaleX = ball.scaleY = scale;
    ball.x = vpX + ball.xpos * scale;
    ball.y = vpY + ball.ypos * scale;
    ball.visible = true;
  }else{
    ball.visible = false;
  }
}
 
void sortZ() {
  for(int i=0; i<numBalls - 1; i++) {
    for(int j=numBalls-1; j>i; j--) {
      if(balls[j].zpos > balls[j-1].zpos) {
        Ball3D t = balls[j];
        balls[j] = balls[j-1];
        balls[j-1] = t;
      }
    }
  }
  for(int i=0; i<numBalls; i++) {
     Ball3D ball = balls[i];
     ball.update();
  }
}
 
////////////////////////////////
 
class Ball3D extends Sprite {
  float radius;
  float xpos = 0;
  float ypos = 0;
  float zpos = 0;
  float vx = 0;
  float vy = 0;
  float vz = 0;
  float mass = 1;
   
  Ball3D(float radius){
    super();
    this.radius = radius;
  }
   
  void draw(){
    if(dist(mouseX, mouseY, x, y) < radius) {
      isRollOver = true;
    }else{
      isRollOver = false;
    }
    ellipse(0, 0, radius*2, radius*2);
  }
}
 
////////////////////////////////
 
class Sprite extends Object {
  float x, y;
  float scaleX, scaleY;
  float width, height;
  float rotation;
  boolean visible;
  color strokeColor;
  color fillColor;
  Boolean isStroke;
  Boolean isFill;
  Boolean isRollOver;
  Boolean locked;
  float xoff, yoff;
  
  Sprite() {
    super();
    scaleX = 1.0;
    scaleY = 1.0;
    strokeColor = color(0);
    fillColor = color(0);
    isStroke = false;
    isFill = false;
    isRollOver = false;
    locked = false;
    visible = true;
  }
   
  void update() {
    if(! visible) return;
    pushMatrix();
    if(locked){
      x = mouseX - xoff;
      y = mouseY - yoff;
    }  
    translate(x, y);
    scale(scaleX, scaleY);
    rotate(rotation * PI / 180.0);
    if(isStroke) stroke(strokeColor);
    if(isFill) fill(fillColor);
    draw();
    popMatrix();
  }
   
  void setStrokeColor(color strokeColor) {
    this.strokeColor = strokeColor;
    isStroke = true;
  }
   
  void setFillColor(color fillColor) {
    this.fillColor = fillColor;
    isFill = true;
  }
   
  void startDrag() {
    if(isRollOver){
      locked = true;
      xoff = mouseX - x;
      yoff = mouseY - y;
    }
  }
   
  void stopDrag() {
    locked = false;
  }
   
  void draw() {}
}
 
////////////////////////////////
 
class Point extends Object {
  float x, y;
   
  Point(float x, float y) {
    super();
    this.x = x;
    this.y = y;
  }
}
 
////////////////////////////////
 
class Object {
  Object() {}
}

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Ball3D[] balls;

static final int numBalls = 50;

float fl = 250;

float vpX = 0;

float vpY = 0;

void setup() {

size(960, 540);

frameRate(30);

initialize();

}

void initialize() {

smooth();

vpX = width/2;

vpY = height/2;

balls = new Ball3D[numBalls];

for(int i=0; i<numBalls; i++) {

balls[i] = new Ball3D(5.0);

balls[i].xpos = random(200) - 100;

balls[i].ypos = random(200) - 100;

balls[i].zpos = random(200) - 100;

balls[i].setFillColor(color(0));

}

void draw() {

background(255);

float angleX = (mouseY - vpY) * 0.001;

float angleY = (mouseX - vpX) * 0.001;

for(int i=0; i<numBalls; i++) {

Ball3D ball = balls[i];

rotateX(ball, angleX);

rotateY(ball, angleY);

doPerspective(ball);

}

for(int i = 1; i < numBalls; i++) {

line(balls[i-1].x, balls[i-1].y, balls[i].x, balls[i].y);

}

for(int i=0; i<numBalls; i++) {

balls[i].update();

}

void rotateX(Ball3D ball, float angleX) {

float cosX = cos(angleX);

float sinX = sin(angleX);

float y1 = ball.ypos * cosX - ball.zpos * sinX;

float z1 = ball.zpos * cosX + ball.ypos * sinX;

ball.ypos = y1;

ball.zpos = z1;

}

void rotateY(Ball3D ball, float angleY) {

float cosY = cos(angleY);

float sinY = sin(angleY);

float x1 = ball.xpos * cosY - ball.zpos * sinY;

float z1 = ball.zpos * cosY + ball.xpos * sinY;

ball.xpos = x1;

ball.zpos = z1;

}

void doPerspective(Ball3D ball) {

if(ball.zpos > -fl) {

float scale = fl / (fl + ball.zpos);

ball.scaleX = ball.scaleY = scale;

ball.x = vpX + ball.xpos * scale;

ball.y = vpY + ball.ypos * scale;

ball.visible = true;

}else{

ball.visible = false;

}

void sortZ() {

for(int i=0; i<numBalls - 1; i++) {

for(int j=numBalls-1; j>i; j--) {

if(balls[j].zpos > balls[j-1].zpos) {

Ball3D t = balls[j];

balls[j] = balls[j-1];

balls[j-1] = t;

}

for(int i=0; i<numBalls; i++) {

Ball3D ball = balls[i];

ball.update();

}

////////////////////////////////

class Ball3D extends Sprite {

float radius;

float xpos = 0;

float ypos = 0;

float zpos = 0;

float vx = 0;

float vy = 0;

float vz = 0;

float mass = 1;

Ball3D(float radius){

super();

this.radius = radius;

}

void draw(){

if(dist(mouseX, mouseY, x, y) < radius) {

isRollOver = true;

}else{

isRollOver = false;

}

ellipse(0, 0, radius*2, radius*2);

}

////////////////////////////////

class Sprite extends Object {

float x, y;

float scaleX, scaleY;

float width, height;

float rotation;

boolean visible;

color strokeColor;

color fillColor;

Boolean isStroke;

Boolean isFill;

Boolean isRollOver;

Boolean locked;

float xoff, yoff;

Sprite() {

super();

scaleX = 1.0;

scaleY = 1.0;

strokeColor = color(0);

fillColor = color(0);

isStroke = false;

isFill = false;

isRollOver = false;

locked = false;

visible = true;

}

void update() {

if(! visible) return;

pushMatrix();

if(locked){

x = mouseX - xoff;

y = mouseY - yoff;

}

translate(x, y);

scale(scaleX, scaleY);

rotate(rotation * PI / 180.0);

if(isStroke) stroke(strokeColor);

if(isFill) fill(fillColor);

draw();

popMatrix();

}

void setStrokeColor(color strokeColor) {

this.strokeColor = strokeColor;

isStroke = true;

}

void setFillColor(color fillColor) {

this.fillColor = fillColor;

isFill = true;

}

void startDrag() {

if(isRollOver){

locked = true;

xoff = mouseX - x;

yoff = mouseY - y;

}

void stopDrag() {

locked = false;

}

void draw() {}

}

////////////////////////////////

class Point extends Object {

float x, y;

Point(float x, float y) {

super();

this.x = x;

this.y = y;

}

////////////////////////////////

class Object {

Object() {}

}

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