12750653-week03

 //week03-1-P3D

void setup(){
  size(400,400,P3D); //開啟3D模式
}
void draw(){
  background(128);//灰色背景
  translate(mouseX,mouseY);
  rotateY(radians(frameCount));//對Y旋轉
  box(200);//大小200的3D Box盒子
}
//week03-2-2D-point-line-rect-ellipse
size(400,400);//2D座標系統
stroke(255,0,0);//筆觸是紅色
strokeWeight(8);//筆觸的權重大小
point(200,200);//預設的點,只有1 pixel
line(200,0,400,100);//畫線
rect(50,50,100,100);//四邊形x,y,w,h
fill(255,255,0);//填充黃色
ellipse(300,200,50,80);//橢圓
//week03-3-rect-corners
size(400,400);
rect(50,50,100,100);
rect(50,200,100,100,20);
rect(200,50,100,100,10,20,30,40);
//week03-4-stroke-strokeWeight-fill 邊框會變顏色
void setup(){
   size(500,500); 
}
void draw(){
  //background(255);
  fill(255,0,0);
  rect(0,0,50,50);
  fill(255,255,0);
  rect(0,50,50,50);
  fill(0,255,0);
  rect(0,100,50,50);
  fill(0,0,255);
  rect(0,150,50,50);
  if(mousePressed)line(mouseX,mouseY,pmouseX,pmouseY);
}
void mousePressed(){
 if(mouseX<50){
   if (mouseY<50) stroke(255,0,0);
   else if(mouseY<100) stroke(255,255,0);
   else if(mouseY<150) stroke(0,255,0);
   else if(mouseY<200) stroke(0,0,255);
 }
}


//week03-4b-stroke-strokeWeight-fill 邊框不會變顏色
void setup(){
   size(500,500); 
}
void draw(){
  //background(255);
  stroke(0);
  fill(255,0,0);
  rect(0,0,50,50);
  fill(255,255,0);
  rect(0,50,50,50);
  fill(0,255,0);
  rect(0,100,50,50);
  fill(0,0,255);
  rect(0,150,50,50);
  stroke(myStroke);
  if(mousePressed)line(mouseX,mouseY,pmouseX,pmouseY);
}
color myStroke;
void mousePressed(){
 if(mouseX<50){
   if (mouseY<50) myStroke=color(255,0,0);
   else if(mouseY<100) myStroke=color(255,255,0);
   else if(mouseY<150) myStroke=color(0,255,0);
   else if(mouseY<200) myStroke=color(0,0,255);
 }
}



//week03-5-mouse-cat-x-y
void setup(){
  size(400,400);
}
float x,y;//貓的座標
void draw(){
  background(255);
  ellipse(x,y,40,40);
  ellipse(mouseX,mouseY,40,20);
  x=(x*14+mouseX)/15;
  y=(y*14+mouseY)/15;
}//新的座標,舊的座標*14,目標*1


//week03-6-lerp
void setup(){
  size(400,400); 
}
float startX=10,startY=10;
float stopX=390,stopY=290;
void draw(){
  ellipse(startX,startY,10,10);
  ellipse(stopX,stopY,10,10);
  //lerp()可以做內差 要給他0.0~1.0之間的數
  float midX=lerp(startX,stopX,frameCount/200.0);
  float midY=lerp(startY,stopY,frameCount/200.0);
  //frameCount 是第幾個frame 一小時=六十分 一分=六十秒 
  ellipse(midX,midY,10,10);
}


//week03-6b-lerp
void setup(){
  size(400,400); 
}
float startX=10,startY=10;
float stopX=390,stopY=290;
void draw(){
  background(255);
  ellipse(startX,startY,10,10);
  ellipse(stopX,stopY,10,10);
  //lerp()可以做內差 要給他0.0~1.0之間的數
  float midX=lerp(startX,stopX,frameCount/200.0);
  float midY=lerp(startY,stopY,frameCount/200.0);
  //frameCount 是第幾個frame 一小時=六十分 一分=六十秒 
  ellipse(midX,midY,10,10);
}



//week03-7
size(400,400);
int x1=340,x2=40,x3=360,x4=60;
int y1=80,y2=40,y3=360,y4=320;
line(x1,x2,x3,x4);
line(x3,y3,x4,y4);
bezier(x1,y1,x2,y2,x3,y3,x4,y4);//貝氏曲線


//week03-8-bezier
void setup(){
  size(400,400);
}
int x1=340,x2=40,x3=360,x4=60;
int y1=80,y2=40,y3=360,y4=320;
void draw(){//
  background(255);
  line(x1,y1,x2,y2);
  line(x3,y3,x4,y4);
  bezier(x1,y1,x2,y2,x3,y3,x4,y4);
  float t=frameCount/200.0;
  float t2=1-t;
  float x=x1*t2*t2*t2+3*x2*t*t2*t2+3*x3*t*t*t2+x4*t*t*t;
  float y=y1*t2*t2*t2+3*y2*t*t2*t2+3*y3*t*t*t2+y4*t*t*t;
  ellipse(x,y,10,10);
}
//week03-8b-bezier
void setup(){
  size(400,400);
}
int x1=120,x2=320,x3=320,x4=120;
int y1=80,y2=20,y3=300,y4=300;
void draw(){//
  background(255);
  line(x1,y1,x2,y2);
  line(x3,y3,x4,y4);
  bezier(x1,y1,x2,y2,x3,y3,x4,y4);
  float t=frameCount/200.0%1;
  float t2=1-t;
  float x=x1*t2*t2*t2+3*x2*t*t2*t2+3*x3*t*t*t2+x4*t*t*t;
  float y=y1*t2*t2*t2+3*y2*t*t2*t2+3*y3*t*t*t2+y4*t*t*t;
  ellipse(x,y,10,10);
}




//week03-9-3D
float[]x=new float[1000];
float[]y=new float[1000];
void setup(){
  size(400,400,P3D); 
  for(int i=0;i<1000;i++){
    x[i]=random(400);
    y[i]=random(400);
  }
}
void draw(){
  background(0);
  stroke(255);
  for(int i=0;i<1000;i++){
    point(x[i],y[i]);
  }
}


//week03-10-3D
float[]x=new float[5000];
float[]y=new float[5000];
float[]z=new float[5000];
void setup(){
  size(400,400,P3D); 
  for(int i=0;i<5000;i++){
    x[i]=random(400);
    y[i]=random(400);
    z[i]=random(-400,400);
  }
}
void draw(){
  background(0);
  stroke(255);
  translate(0,0,mouseY);
  for(int i=0;i<5000;i++){
    point(x[i],y[i],z[i]);
  }
}

//week03-11-3Dsphere
void setup(){
  size(400,400,P3D);
}
void draw(){
  background(128);
  translate(mouseX,mouseY);
  rotateY(radians(frameCount));
  sphere(200);
}
//week03-12-3Dsphere
void setup(){
  size(400,400,P3D);
}
void draw(){
  background(128);
  lights();//加上打光
  translate(mouseX,mouseY);
  rotateY(radians(frameCount));
  sphere(200);
}
//week03-13-3D
void setup(){
  size(600,400,P3D);
}
void draw(){
  background(128);
  lights();
  pushMatrix();//備份矩陣
  translate(300,100);//習慣上要再往右縮
  sphere(100); 
  popMatrix();//還原矩陣
  //要備份矩陣 還原矩陣就不會出錯
  pushMatrix();
  translate(100,100);
  sphere(100);
  popMatrix();
}