1. void setup(){
size(500,500); } int x=-1,y=-1; void draw(){ if(x != -1){ ellipse(x,y,1,1); y++; } } void mouseDragged(){ if(mouseButton==LEFT) line(mouseX,mouseY,pmouseX,pmouseY); if(mouseButton==RIGHT){ x = mouseX; y = mouseY; } }
2. void setup(){
size(500,500); background(255); } void draw(){ } void mouseDragged(){ if(mouseButton==LEFT) { line(mouseX,mouseY,pmouseX,pmouseY); loadPixels(); for(int i=0;i<width*height;i++){ if(pixels[i] != -1) pixels[i] = color(random(255),random(255),random(255)); } updatePixels(); } }
3. PImage img;
void setup(){ size(500,500); img = createImage(500,500,RGB); img.loadPixels(); for(int i=0;i<500*500;i++) img.pixels[i] = color(#FFFFF2); img.updatePixels(); } int x=250,y=0; void draw(){ background(img); ellipse(x,y,20,20); if(img.pixels[x+y*500]==-14) y++; } void mouseDragged(){ background(img); line(mouseX,mouseY,pmouseX,pmouseY); loadPixels(); img.loadPixels(); for(int i=0;i<500*500;i++) img.pixels[i] = pixels[i]; img.updatePixels(); updatePixels(); }4. PImage img;
void setup(){ size(500,500); img = createImage(500,500,RGB); } //int x=250,y=0; ArrayList<PVector> p = new ArrayList<PVector>(); void draw(){ background(img); for(PVector pp : p){ ellipse(pp.x,pp.y,20,20); if(pp.y<498 && img.pixels[int(pp.x)+int(pp.y)*500]==-16777216)pp.y++; } } void mouseDragged(){ background(img); stroke(random(255),random(255),random(255)); line(mouseX,mouseY,pmouseX,pmouseY); loadPixels(); img.loadPixels(); for(int i=0;i<500*500;i++) img.pixels[i] = pixels[i]; img.updatePixels(); updatePixels(); for(PVector pp : p){ ellipse(pp.x,pp.y,20,20); } } void mousePressed(){ if(mouseButton==RIGHT){ p.add(new PVector(mouseX,mouseY)); } }
5. void setup(){size(500,500); background(#FFFFF2); } void draw(){ if(mousePressed && mouseButton==LEFT) line(mouseX,mouseY,pmouseX,pmouseY); if(mousePressed && mouseButton==RIGHT){ loadPixels(); color c1 = pixels[mouseX+mouseY*500]; color c2 = color(random(255),random(255),random(255)); if(c1!=c2)myFloodFill(mouseX,mouseY,c1,c2); updatePixels(); } } boolean isOK(int x,int y,color c1){ if(x<0 || y<0 || x>=500 || y>=500) return false; if(pixels[x+y*500] != c1) return false; return true; } void myFloodFill(int x,int y,color c1,color c2){ pixels[x+y*500] = c2; if(isOK(x+1,y,c1)) myFloodFill(x+1,y,c1,c2); if(isOK(x-1,y,c1)) myFloodFill(x-1,y,c1,c2); if(isOK(x,y+1,c1)) myFloodFill(x,y+1,c1,c2); if(isOK(x,y-1,c1)) myFloodFill(x,y-1,c1,c2); }6. void setup(){
size(500,500); PImage img = loadImage("1.png"); cursor(img); } void draw(){ background(255); }
7. PImage imgCute, imgKitty;
void setup(){ size(500,500); imgCute = loadImage("cute.png"); imgKitty = loadImage("kitty.png"); cursor(imgKitty); } void draw(){ background(#FFFFF2); if(frameCount%120==0) cursor(imgCute); if(frameCount%120==60) cursor(imgKitty); }
8. PImage imgBigCute, imgBigKitty,imgCursor;
void setup(){ size(500,500); imgBigCute = loadImage("bigcute.png"); imgBigKitty = loadImage("bigkitty.png"); imgCursor = imgBigKitty; } void draw(){ background(#FFFFF2); imageMode(CENTER); image(imgCursor, mouseX,mouseY); imageMode(CORNER); if(frameCount%120==0) imgCursor = imgBigCute; if(frameCount%120==60) imgCursor = imgBigKitty; }





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