自製小畫家
1.按滑鼠會變色
程式如下:
void setup(){
size(500,500);
}
void draw(){
if(mousePressed)background(255,0,0); ///按滑鼠會變紅色
else background(0,255,0);
}
2.用滑鼠畫畫
程式如下:
void setup(){
size(500,500);
}
void draw(){
if(mousePressed)line(mouseX,mouseY,0,0); ///連結到0,0
}
3.用滑鼠畫畫PART 2
程式如下:
void setup(){
size(500,500);
}
void draw(){
if(mousePressed)line(mouseX,mouseY,pmouseX,pmouseY);
///過去的滑鼠座標連線到現在的滑鼠座標
}
4.點方塊換顏色
程式如下:
void setup(){
size(500,500);
rect(0,0,100,100); ///畫個方塊
}
void draw(){
if(mousePressed)
{
if(mouseX<100)
{
if(mouseY<100)stroke(255,0,0); ///點方塊換顏色
else if (mouseY<200)stroke(0,255,0);
}else line(mouseX,mouseY,pmouseX,pmouseY);
}
}
5.點圓換粗細
程式如下:
void setup(){
size(500,500);
rect(0,0,100,100);ellipse(50,50,8,8); ///8的圓
rect(0,100,100,100);ellipse(50,150,4,4);///4的圓
}
void draw(){
if(mousePressed)
{
if(mouseX<100)
{
if(mouseY<100)strokeWeight(8); ///粗
else if (mouseY<200)strokeWeight(4); ///中
}else line(mouseX,mouseY,pmouseX,pmouseY);
}
}
6.點圓換粗細PART 2 (for)
程式如下:
void setup(){
size(500,500);
for(int i=1;i<8;i++)
{
rect(0,i*50,50,50); ///用for畫7個方塊跟圓
ellipse(25,25+i*50,i,i);
}
}
void draw(){
if(mousePressed){
if(mouseX<100){
for(int i=1;i<8;i++){
if(mouseY>i*50&&mouseY<i*50+50){
strokeWeight(i);
}
}
}else line(mouseX,mouseY,pmouseX,pmouseY);
}
}
7.點圓換粗細PART 3 (一個一個寫)
程式如下:
void setup(){
size(500,500);
rect(0,50, 50,50); ellipse(25,25+50, 1,1);
rect(0,100,50,50); ellipse(25,25+100,2,2);
rect(0,150,50,50); ellipse(25,25+150,3,3);
rect(0,200,50,50); ellipse(25,25+200,4,4);
rect(0,250,50,50); ellipse(25,25+250,5,5);
rect(0,300,50,50); ellipse(25,25+300,6,6);
rect(0,350,50,50); ellipse(25,25+350,7,7);
rect(0,400,50,50); ellipse(25,25+400,8,8);
}
void draw(){
if(mousePressed){
if(mouseX<50){
if(mouseY>1*50 && mouseY<1*50+50)strokeWeight(1);
if(mouseY>2*50 && mouseY<2*50+50)strokeWeight(2);
if(mouseY>3*50 && mouseY<3*50+50)strokeWeight(3);
if(mouseY>4*50 && mouseY<4*50+50)strokeWeight(4);
if(mouseY>5*50 && mouseY<5*50+50)strokeWeight(5);
if(mouseY>6*50 && mouseY<6*50+50)strokeWeight(6);
if(mouseY>7*50 && mouseY<7*50+50)strokeWeight(7);
if(mouseY>8*50 && mouseY<8*50+50)strokeWeight(8);
}else line(mouseX,mouseY,pmouseX,pmouseY);
}
}
8.點方塊換顏色PART 2
程式如下:
void setup(){
size(500,500);
fill(#FF0505);rect(0,50, 50,50);
fill(#FFB005);rect(0,100,50,50);
fill(#D0FF05);rect(0,150,50,50);
fill(#05FF24);rect(0,200,50,50);
fill(#05DCFF);rect(0,250,50,50);
fill(#051BFF);rect(0,300,50,50);
fill(#7905FF);rect(0,350,50,50);
fill(#FF05EF);rect(0,400,50,50);
}
void draw(){
if(mousePressed){
if(mouseX<50){
if(mouseY>1*50 && mouseY<1*50+50)stroke(#FF0505);
if(mouseY>2*50 && mouseY<2*50+50)stroke(#FFB005);
if(mouseY>3*50 && mouseY<3*50+50)stroke(#D0FF05);
if(mouseY>4*50 && mouseY<4*50+50)stroke(#05FF24);
if(mouseY>5*50 && mouseY<5*50+50)stroke(#05DCFF);
if(mouseY>6*50 && mouseY<6*50+50)stroke(#051BFF);
if(mouseY>7*50 && mouseY<7*50+50)stroke(#7905FF);
if(mouseY>8*50 && mouseY<8*50+50)stroke(#FF05EF);
}else line(mouseX,mouseY,pmouseX,pmouseY);
}
}
9.合併
程式如下:
void setup(){
size(500,500);
rect(0,50, 50,50); ellipse(25,25+50, 1,1);
rect(0,100,50,50); ellipse(25,25+100,2,2);
rect(0,150,50,50); ellipse(25,25+150,3,3);
rect(0,200,50,50); ellipse(25,25+200,4,4);
rect(0,250,50,50); ellipse(25,25+250,5,5);
rect(0,300,50,50); ellipse(25,25+300,6,6);
rect(0,350,50,50); ellipse(25,25+350,7,7);
rect(0,400,50,50); ellipse(25,25+400,8,8);
fill(#FF0505);rect(450,50, 50,50);
fill(#FFB005);rect(450,100,50,50);
fill(#D0FF05);rect(450,150,50,50);
fill(#05FF24);rect(450,200,50,50);
fill(#05DCFF);rect(450,250,50,50);
fill(#051BFF);rect(450,300,50,50);
fill(#7905FF);rect(450,350,50,50);
fill(#FF05EF);rect(450,400,50,50);
}
void draw(){
if(mousePressed){
if(mouseX<50){
if(mouseY>1*50 && mouseY<1*50+50)strokeWeight(1);
if(mouseY>2*50 && mouseY<2*50+50)strokeWeight(2);
if(mouseY>3*50 && mouseY<3*50+50)strokeWeight(3);
if(mouseY>4*50 && mouseY<4*50+50)strokeWeight(4);
if(mouseY>5*50 && mouseY<5*50+50)strokeWeight(5);
if(mouseY>6*50 && mouseY<6*50+50)strokeWeight(6);
if(mouseY>7*50 && mouseY<7*50+50)strokeWeight(7);
if(mouseY>8*50 && mouseY<8*50+50)strokeWeight(8);
}else if (mouseX>450){
if(mouseY>1*50 && mouseY<1*50+50)stroke(#FF0505);
if(mouseY>2*50 && mouseY<2*50+50)stroke(#FFB005);
if(mouseY>3*50 && mouseY<3*50+50)stroke(#D0FF05);
if(mouseY>4*50 && mouseY<4*50+50)stroke(#05FF24);
if(mouseY>5*50 && mouseY<5*50+50)stroke(#05DCFF);
if(mouseY>6*50 && mouseY<6*50+50)stroke(#051BFF);
if(mouseY>7*50 && mouseY<7*50+50)stroke(#7905FF);
if(mouseY>8*50 && mouseY<8*50+50)stroke(#FF05EF);
}
else line(mouseX,mouseY,pmouseX,pmouseY);
}
}
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