Week3

##課堂練習目標
1. 剪刀石頭布
2. 期中作品構想

##實作
先寫圖片載入，試試能不能顯示

安裝LEAP Motion相關函式庫
Sketch→Import Library→Add Library...→在搜尋打上"LEAP"
→選擇安裝 Leap Motion for Processing

安裝好後開啟範例程式碼
File→Examples...→最底下Cintributed Libraries→Leap Motion for Processing
→選第一個範例 e1_basic

修改程式碼
加入圖片宣告、來源

加入判斷式，讀到0~5個點分別要對應的圖片

hand_position語法，抓手的x、y座標
並讓圖片跟著手的座標跑

測試

=====程式碼=====

import de.voidplus.leapmotion.*;
LeapMotion leap;

PImage img0,img2,img5;////STAP1
void setup(){
  size(800, 500, P3D);
  background(255);
  noStroke(); fill(50);
  // ...
 
  leap = new LeapMotion(this);
  ////STAP2
   img0=loadImage("http://i.imgur.com/ekPNgYi.jpg");
   img2=loadImage("http://i.imgur.com/Oq8a9kT.jpg");
   img5=loadImage("http://i.imgur.com/F5GXMqq.jpg");
  imageMode(CENTER);
  ////STAP2
}

void draw(){
  background(255);
  // ...
  int fps = leap.getFrameRate();

  // HANDS
  for(Hand hand : leap.getHands()){
    ////STAP3
    /*int n=hand.countFingers();
    if(n==0||n==1) image(img0,0,0);
    if(n==2||n==3) image(img2,0,0);
    if(n==5||n==4) image(img5,0,0); */
    ////STAP3

    hand.draw();
    int     hand_id          = hand.getId();
    PVector hand_position    = hand.getPosition();
    PVector hand_stabilized  = hand.getStabilizedPosition();
    ////STAP4
    println("X:"+hand_position.x +"Y:"+hand_position.y);
    int n=hand.countFingers();
    if(n==0||n==1) image(img0,hand_position.x,hand_position.y);
    if(n==2||n==3) image(img2,hand_position.x,hand_position.y);
    if(n==5||n==4) image(img5,hand_position.x,hand_position.y);
    ////STAP4
    PVector hand_direction   = hand.getDirection();
    PVector hand_dynamics    = hand.getDynamics();
    float   hand_roll        = hand.getRoll();
    float   hand_pitch       = hand.getPitch();
    float   hand_yaw         = hand.getYaw();
    float   hand_time        = hand.getTimeVisible();
    PVector sphere_position  = hand.getSpherePosition();
    float   sphere_radius    = hand.getSphereRadius();
 
    // FINGERS
    for(Finger finger : hand.getFingers()){
   
      // Basics
      finger.draw();
      int     finger_id         = finger.getId();
      PVector finger_position   = finger.getPosition();
      PVector finger_stabilized = finger.getStabilizedPosition();
      PVector finger_velocity   = finger.getVelocity();
      PVector finger_direction  = finger.getDirection();
      float   finger_time       = finger.getTimeVisible();
   
      // Touch Emulation
      int     touch_zone        = finger.getTouchZone();
      float   touch_distance    = finger.getTouchDistance();
   
      switch(touch_zone){
        case -1: // None
          break;
        case 0: // Hovering
          // println("Hovering (#"+finger_id+"): "+touch_distance);
          break;
        case 1: // Touching
          // println("Touching (#"+finger_id+")");
          break;
      }
    }
 
    // TOOLS
    for(Tool tool : hand.getTools()){
   
      // Basics
      tool.draw();
      int     tool_id           = tool.getId();
      PVector tool_position     = tool.getPosition();
      PVector tool_stabilized   = tool.getStabilizedPosition();
      PVector tool_velocity     = tool.getVelocity();
      PVector tool_direction    = tool.getDirection();
      float   tool_time         = tool.getTimeVisible();
   
      // Touch Emulation
      int     touch_zone        = tool.getTouchZone();
      float   touch_distance    = tool.getTouchDistance();
   
      switch(touch_zone){
        case -1: // None
          break;
        case 0: // Hovering
          // println("Hovering (#"+tool_id+"): "+touch_distance);
          break;
        case 1: // Touching
          // println("Touching (#"+tool_id+")");
          break;
      }
    }
 
  }

  // DEVICES
  // for(Device device : leap.getDevices()){
  //   float device_horizontal_view_angle = device.getHorizontalViewAngle();
  //   float device_verical_view_angle = device.getVerticalViewAngle();
  //   float device_range = device.getRange();
  // }

}

void leapOnInit(){
  // println("Leap Motion Init");
}
void leapOnConnect(){
  // println("Leap Motion Connect");
}
void leapOnFrame(){
  // println("Leap Motion Frame");
}
void leapOnDisconnect(){
  // println("Leap Motion Disconnect");
}
void leapOnExit(){
  // println("Leap Motion Exit");
}