02160305_邱俊澄_Week02

自製小畫家

刮畫版本1

刮畫版本2

小畫家

void setup(){

   size(800,600);

   background(#074308);

   

}

float myshishi=1;

color myStroke=color(0);

void draw(){

  stroke(0); strokeWeight(1);

  fill(255,0,0);rect(0,0,80,80);

  fill(0,255,0);rect(0,80,80,80);

  fill(0,0,255);rect(0,160,80,80);

  fill(0,0,0);rect(0,240,80,80);

  stroke(myStroke); strokeWeight(myshishi);

  

}

void mousePressed(){

  if(mouseX<80 && mouseY<80){myStroke=color(255,0,0);}

  if(mouseX<80 && mouseY>80 && mouseY<160){myStroke=color(0,255,0);}

  if(mouseX<80 && mouseY>160 && mouseY<240){myStroke=color(0,0,255);}

  if(mouseX<80 && mouseY>240 && mouseY<320){myStroke=color(0,0,0);}

  

  if(mouseX>700) myshishi=mouseY/50;

}

void mouseDragged(){

  line(mouseX,mouseY,pmouseX,pmouseY);

}

刮畫1
PImage imgBG;
PImage imgBlack;
void setup(){
  size(800,600);
  imgBG=loadImage("colorBG.jpg");
  imgBlack=createImage(800,600,ARGB);
 
  imgBlack.loadPixels();
  for(int i=0;i<imgBlack.pixels.length;i++){
    imgBlack.pixels[i]=color(0,0,0,255);
  }
  imgBlack.updatePixels();
}
void draw(){
  image(imgBG,0,0,width,height);
  image(imgBlack,0,0,width,height);
}
void mouseDragged(){
  imgBlack.loadPixels();
  imgBlack.pixels[mouseX+mouseY*width]=color(0,0,0,0);
 
  imgBlack.updatePixels();
}

刮畫2
void setup(){
  size(800,600);
  colorMode(HSB,800);
  background(0);
  strokeWeight(2);
}
void draw(){
   if(mousePressed){
     stroke(mouseX,mouseY,800);
     line(mouseX,mouseY,pmouseX,pmouseY);
   }
}