size(400,400);
background(255);
}
void draw(){
}
void mouseDragged(){
line(mouseX,mouseY,pmouseX,pmouseY);
}
更改畫筆顏色
void setup(){
size(400,400);
background(255);
fill(255,0,0);
rect(0,0,10,10);
fill(0,255,0);
rect(0,10,10,10);
fill(#FAFF00);
rect(0,20,10,10);
}
void draw(){
}
void mouseDragged(){
line(mouseX,mouseY,pmouseX,pmouseY);
}
void mousePressed(){
if(mouseX<10 && mouseY<10) stroke(255,0,0);
else if(mouseX<10 && mouseY<20) stroke(0,255,0);
else if(mouseX<10 && mouseY<30) stroke(#FAFF00);
}
調色盤功能
void setup(){
size(400,400);
background(255);
noStroke();
colorMode(HSB, 100);
for (int i = 0; i < 100; i++) {
for (int j = 0; j < 100; j++) {
stroke(i, j, 100);
point(i, j);
}
}
}
void draw(){
}
void mouseDragged(){
line(mouseX,mouseY,pmouseX,pmouseY);
}
void mousePressed(){
if(mouseX<100 && mouseY<100) stroke(mouseX,mouseY,100);
}
筆觸粗細
void setup(){
size(400,400);
background(255);
noStroke();
colorMode(HSB, 100);
for (int i = 0; i < 100; i++) {
for (int j = 0; j < 100; j++) {
stroke(i, j, 100);
point(i, j);
}
}
fill(255);
rect(400,0,100,100);
strokeWeight(30);
stroke(#000000);
point(450,0);
}
void draw(){
}
void mouseDragged(){
line(mouseX,mouseY,pmouseX,pmouseY);
}
void mousePressed(){
if(mouseX<100 && mouseY<100) stroke(mouseX,mouseY,100);
}
extra-橡皮擦功能
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