week07
做一個萬聖節的小遊戲
在小視窗能畫線
void setup(){
size(400,400);
background(255);
}
void draw(){
if(mousePressed) line(mouseX, mouseY, pmouseX, pmouseY);
}
void mouseReleased(){
background(255);
}
有一個物體朝中心接近
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void draw(){
ellipse(200,200, 15,15);
if(mousePressed) line(mouseX, mouseY, pmouseX, pmouseY);
ellipse(ghostX,ghostY, 15,15);
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
background(255);
}
畫出線並且不會消失
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY));
}
void draw(){
ellipse(200,200, 15,15);
//if(mousePressed) line(mouseX, mouseY, pmouseX, pmouseY);
for(int i=0; i<pt.size(); i++){
PVector p = pt.get(i);
ellipse(p.x, p.y, 3, 3);
}
ellipse(ghostX,ghostY, 15,15);
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
background(255);
}
畫出線並且不會出現殘影
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY));
}
void draw(){
background(255);
ellipse(200,200, 15,15);
//if(mousePressed) line(mouseX, mouseY, pmouseX, pmouseY);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
ellipse(ghostX,ghostY, 15,15);
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
畫線時物體會變色
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY));
}
void draw(){
background(255);
ellipse(200,200, 15,15);
ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
}
if(dpx>100 && dpy<40) stroke(255,0,0);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
能畫出藍線
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY) );
}
void draw(){
background(255);
strokeWeight(1);
stroke(0); ellipse(200,200, 15,15);
stroke(0); ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
}
if(dpx>100 && dpy<40) stroke(255,0,0);
else if(dpx<40 && dpy>100) stroke(0,0,255);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
能畫出綠色的勾勾
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY) );
}
void draw(){
background(255);
strokeWeight(1);
stroke(0); ellipse(200,200, 15,15);
stroke(0); ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
int rightdown = 0; //往右下
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
if( p2.x - p.x > 0 && p2.y - p.y > 0 ) rightdown++;
}
if(dpx>100 && dpy<40) stroke(255,0,0);
else if(dpx<40 && dpy>100) stroke(0,0,255);
else if(rightdown>30) stroke(0,255,0);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
修正綠色勾勾的問題
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY) );
}
void draw(){
background(255);
strokeWeight(1);
stroke(0); ellipse(200,200, 15,15);
stroke(0); ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
float rightdown = 0; //往右下
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
if( p2.x - p.x > 0 && p2.y - p.y > 0 ) rightdown+=sqrt(dpx*dpx + dpy*dpy);
}
if(dpx>100 && dpy<40) stroke(255,0,0);
else if(dpx<40 && dpy>100) stroke(0,0,255);
else if(rightdown>150) stroke(0,255,0);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY) );
}
void draw(){
background(255);
strokeWeight(1);
stroke(0); ellipse(200,200, 15,15);
stroke(0); ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
float rightdown = 0, rightup = 0; //往右下
boolean green_part1 = false, green_ok = false;
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
if( p2.x - p.x > 0 && p2.y - p.y > 0 ) rightdown +=sqrt(dpx*dpx + dpy*dpy);
if( p2.x - p.x > 0 && p2.y - p.y < 0 ) rightup +=sqrt(dpx*dpx + dpy*dpy);
ellipse(p.x, p.y, 10, 10);
if(green_part1==false && rightdown>150) green_part1 = true;
else if(green_part1==true && rightup>150) green_ok = true;
}
println(rightdown);
if(dpx>100 && dpy<40) stroke(255,0,0);
else if(dpx<40 && dpy>100) stroke(0,0,255);
else if(green_ok) stroke(0,255,0);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
修改寫法並增加顏色深淺
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY) );
}
void draw(){
background(255);
strokeWeight(1);
stroke(0); ellipse(200,200, 15,15);
stroke(0); ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
float rightdown = 0, green_rightup = 0; //往右下
boolean green_part1 = false, green_ok = false;
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
if( p2.x - p.x > 0 && p2.y - p.y > 0 ) rightdown +=sqrt(dpx*dpx + dpy*dpy);
if( green_part1 && p2.y - p.y < 0 ) green_rightup +=sqrt(dpx*dpx + dpy*dpy);
ellipse(p.x, p.y, 10, 10);
if(green_part1==false && rightdown>150) green_part1 = true;
else if(green_part1==true && green_rightup>150) green_ok = true;
}
println(rightdown);
if(dpx>100 && dpy<40) stroke(255,0,0);
else if(dpx<40 && dpy>100) stroke(0,0,255);
else if(green_ok) stroke(0,255,0);
else if(green_part1) stroke(0,128,0);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
做出黃色的倒勾並完成
ArrayList<PVector> pt = new ArrayList<PVector>();
void setup(){
size(400,400);
background(255);
}
float ghostX=400, ghostY=20;
void mouseDragged(){ //按下mouse鍵,再拖它
pt.add( new PVector(mouseX, mouseY) );
}
void draw(){
background(255);
strokeWeight(1);
stroke(0); ellipse(200,200, 15,15);
stroke(0); ellipse(ghostX,ghostY, 15,15);
strokeWeight(4);
float dpx=0, dpy=0;
float rightdown = 0, green_rightup = 0; //往右下, 往右下
float rightup = 0, yellow_rightdown = 0; //往右下, 往右下
boolean green_part1 = false, green_ok = false;
boolean yellow_part1 = false, yellow_ok = false;
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
dpx += abs(p2.x - p.x);
dpy += abs(p2.y - p.y);
if( p2.x - p.x > 0 && p2.y - p.y > 0 ) rightdown +=sqrt(dpx*dpx + dpy*dpy);
if( green_part1 && p2.x -p.x > 0 && p2.y- p.y < 0 ) green_rightup +=sqrt(dpx*dpx + dpy*dpy);
if( p2.x - p.x > 0 && p2.y - p.y < 0 ) rightup +=sqrt(dpx*dpx + dpy*dpy);
if( yellow_part1 && p2.x -p.x > 0 && p2.y- p.y > 0 ) yellow_rightdown +=sqrt(dpx*dpx + dpy*dpy);
//ellipse(p.x, p.y, 10, 10);
if(green_part1==false && rightdown>150) green_part1 = true;
else if(green_part1==true && green_rightup>150) green_ok = true;
if(yellow_part1==false && rightup>150) yellow_part1 = true;
else if(yellow_part1==true && yellow_rightdown>150) yellow_ok = true;
}
println(rightdown);
if(dpx>100 && dpy<40) stroke(255,0,0);//紅色的橫線
else if(dpx<40 && dpy>100) stroke(0,0,255);//藍色的直線
else if(green_ok) stroke(0,255,0);
//else if(green_part1) stroke(0,128,0);//暗暗的綠色
else if(yellow_ok) stroke(255,255,0);
else stroke(0);
for(int i=0; i<pt.size()-1; i++){
PVector p = pt.get(i), p2 = pt.get(i+1);
line(p.x, p.y, p2.x, p2.y); //ellipse(p.x, p.y, 3, 3);
}
float dx = 200-ghostX, dy = 200-ghostY, len = sqrt(dx*dx+dy*dy);
ghostX += dx / len / 3;
ghostY += dy / len / 3;
}
void mouseReleased(){
//background(255);
for(int i=pt.size()-1; i>=0; i--){ //倒過來的for迴圈
pt.remove(i);
}
}
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