SY-BlingBangBang week12 點播

 [TODO]

上課內容：

音樂

// week12_1_libraries_sound_SoundFile_sound_isPlaying
// 官網-Documentation文件-Libraries函式庫(圖書館)-Sound聲音部分
// https://processing.org/reference/libraries/sound/index.html
// 我們教過 play() stop() pause()，今天要試isPlaying()是不是在播放
import processing.sound.*;
SoundFile sound1, sound2; //兩段音樂
int playing = 1;
void setup(){
  size(640,360);
  background(255);
  sound1 = new SoundFile(this, "Intro Song_Final.mp3"); //week09_4 可下載
  sound2 = new SoundFile(this, "In Game Music.mp3"); //week09_4 可下載
}
void draw(){
  if(sound1.isPlaying()){//音樂1有沒有在播放
    playing=1;
  }
  else if(sound2.isPlaying()){//音樂2有沒有在播放
    playing=2;
  }
  else{//沒有任何音樂在播放
    if(playing==1) sound2.play(); //換另一首
    else sound1.play();
  }
}

貝茲曲線1

// week12_2_bezier_sample
// 貝茲曲線
// 按右鍵，找 bezier() 函式的網站文件
size(500,500);
noFill(); //以下，是從文件裡copy來的
stroke(255, 102, 0);
line(340, 80, 40, 40);
line(360, 360, 60, 320);
stroke(0, 0, 0);
bezier(340, 80, 40, 40, 360, 360, 60, 320);

貝茲曲線2

// week12_3_bezier_1_3_3_1_equation_mouseDragged_change_t
void setup(){
  size(500,500);
}
PVector p0 = new PVector(340,80);
PVector p1 = new PVector(40,40);
PVector p2 = new PVector(360,360);
PVector p3 = new PVector(60,320);
float t = 0.0;
void draw(){
  background(255);
  noFill(); //以下，是從文件裡copy來的
  stroke(255, 102, 0);
  line(340, 80, 40, 40);
  line(360, 360, 60, 320);
  stroke(0, 0, 0);
  bezier(340, 80, 40, 40, 360, 360, 60, 320);
  float  x = p0.x*(1-t)*(1-t)*(1-t) + 3*p1.x*t*(1-t)*(1-t) + 3*p2.x*t*t*(1-t) + p3.x*t*t*t;
  float  y = p0.y*(1-t)*(1-t)*(1-t) + 3*p1.y*t*(1-t)*(1-t) + 3*p2.y*t*t*(1-t) + p3.y*t*t*t;
  ellipse(x,y,10,10);
}
void mouseDragged(){
  t += 0.01*(mouseX-pmouseX);
}

貝茲曲線3

// week12_4_bezier_for_t_t0_0_many_t
// https://processing.org/reference/bezier_.html 下面的範例
void setup(){
  size(400,400);
}
PVector p0 = new PVector(120, 80);
PVector p1 = new PVector(320, 20);
PVector p2 = new PVector(320, 300);
PVector p3 = new PVector(120, 300);
float t0 = 0.0;
void draw(){
  background(255);
  noFill();
  stroke(255, 102, 0);
  line(120, 80, 320, 20);
  line(320, 300, 120, 300);
  stroke(0, 0, 0);
  bezier(120, 80,  320, 20,  320, 300,  120, 300);
  for(float t = t0; t>=0; t-=0.025){
    float  x = p0.x*(1-t)*(1-t)*(1-t) + 3*p1.x*t*(1-t)*(1-t) + 3*p2.x*t*t*(1-t) + p3.x*t*t*t;
    float  y = p0.y*(1-t)*(1-t)*(1-t) + 3*p1.y*t*(1-t)*(1-t) + 3*p2.y*t*t*(1-t) + p3.y*t*t*t;
    ellipse(x,y,10,10);
  }
}
void mouseDragged(){
  t0 += 0.01*(mouseX-pmouseX);
}

貝茲曲線4

// week12_5_bezier_ArrayList_class_Ball_draw_ ArrayList_add
void setup(){
  size(400,400);
}
PVector p0 = new PVector(120, 80);
PVector p1 = new PVector(320, 20);
PVector p2 = new PVector(320, 300);
PVector p3 = new PVector(120, 300);
float t0 = 0.0;
ArrayList<Ball>balls = new ArrayList<Ball>(); //新加的
void draw(){
  background(255);
  noFill();
  stroke(255, 102, 0);
  line(120, 80, 320, 20);
  line(320, 300, 120, 300);
  stroke(0, 0, 0);
  bezier(120, 80,  320, 20,  320, 300,  120, 300);
  for(Ball ball : balls){//新加的
    ball.draw();
  }
  if(frameCount%20==0) balls.add(new Ball(p0, p1, p2, p3));//新加的
}
void mouseDragged(){
  t0 += 0.01*(mouseX-pmouseX);
}
class Ball{ //球的物件
  PVector p0, p1, p2, p3;
  float t;
  Ball(PVector _p0, PVector _p1, PVector _p2, PVector _p3){
    p0 = _p0;
    p1 = _p1;
    p2 = _p2;
    p3 = _p3;
  }
  void draw(){
    float  x = p0.x*(1-t)*(1-t)*(1-t) + 3*p1.x*t*(1-t)*(1-t) + 3*p2.x*t*t*(1-t) + p3.x*t*t*t;
    float  y = p0.y*(1-t)*(1-t)*(1-t) + 3*p1.y*t*(1-t)*(1-t) + 3*p2.y*t*t*(1-t) + p3.y*t*t*t;
    ellipse(x,y,10,10);
    t+=0.001;
  }
}

貝茲曲線5

// week12_6_bezier_ArrayList_balls_size_get_remove
void setup(){
  size(400,400);
}
PVector p0 = new PVector(120, 80);
PVector p1 = new PVector(320, 20);
PVector p2 = new PVector(320, 300);
PVector p3 = new PVector(120, 300);
float t0 = 0.0;
ArrayList<Ball>balls = new ArrayList<Ball>(); //新加的
void draw(){
  background(255);
  noFill();
  stroke(255, 102, 0);
  line(120, 80, 320, 20);
  line(320, 300, 120, 300);
  stroke(0, 0, 0);
  bezier(120, 80,  320, 20,  320, 300,  120, 300);
  for(Ball ball : balls){//新加的
    ball.draw();
  }
  if(frameCount%20==0){
    balls.add(new Ball(p0, p1, p2, p3));//新加的
    println(balls.size());
  }
  if(balls.size()>0 && balls.get(0).t>1.0) balls.remove(0);
}
void mouseDragged(){
  t0 += 0.01*(mouseX-pmouseX);
}
class Ball{ //球的物件
  PVector p0, p1, p2, p3;
  float t;
  Ball(PVector _p0, PVector _p1, PVector _p2, PVector _p3){
    p0 = _p0;
    p1 = _p1;
    p2 = _p2;
    p3 = _p3;
  }
  void draw(){
    float  x = p0.x*(1-t)*(1-t)*(1-t) + 3*p1.x*t*(1-t)*(1-t) + 3*p2.x*t*t*(1-t) + p3.x*t*t*t;
    float  y = p0.y*(1-t)*(1-t)*(1-t) + 3*p1.y*t*(1-t)*(1-t) + 3*p2.y*t*t*(1-t) + p3.y*t*t*t;
    ellipse(x,y,10,10);
    t+=0.001;
  }
}