第一節課
萬聖節快到了,老師邵一個google萬聖節遊戲,透過滑鼠畫符號來打敗敵人,今天要試著做出來看看。
week07-1
第一步用滑鼠按鍵來畫線,要讓它可以重複劃,設一個白色背景去清畫面。
void setup(){ size(400,400); background(255); } void draw(){ if(mousePressed) line(mouseX,mouseY,pmouseX,pmouseY); } void mousePressed(){ background(255); }
加上鬼,讓它可以往中間玩家移動。
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 mousePressed(){ background(255); }
加入上禮拜交的ArrayList的資料結構。
ArrayList<PVector>pt=new ArrayList<PVector>(); void setup(){ size(400,400); background(255); } float ghostX=400,ghostY=20; void mouseDragged(){ 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();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 mousePressed(){ background(255); }
在上個程式加上remove清畫面,寫一個倒過來來的迴圈,來清除線條。
ArrayList<PVector>pt=new ArrayList<PVector>(); void setup(){ size(400,400); background(255); } float ghostX=400,ghostY=20; void mouseDragged(){ 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(){ for(int i=pt.size()-1;i>=0;i--){//倒過來的迴圈 pt.remove(i); } }
第二節課
week07-5
要把線變色,判定當橫向變化量>100且垂直變化量<40,橫線變成紅色。
ArrayList<PVector>pt=new ArrayList<PVector>(); void setup(){ size(400,400); background(255); } float ghostX=400,ghostY=20; void mouseDragged(){ 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); //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); } float dx=200-ghostX,dy=200-ghostY,len=sqrt(dx*dx+dy*dy); ghostX+=dx/len/3; ghostY+=dy/len/3; } void mouseReleased(){ for(int i=pt.size()-1;i>=0;i--){//倒過來的迴圈 pt.remove(i); } }
判定當橫向變化量<40且垂直變化量>100,直線變成藍色,另外再加把兩個圓圈改成不變色。
ArrayList<PVector>pt=new ArrayList<PVector>(); void setup(){ size(400,400); background(255); } float ghostX=400,ghostY=20; void mouseDragged(){ 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 if(dpx>80&&dpy>80) stroke(0,255,0); else stroke(0); //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); } float dx=200-ghostX,dy=200-ghostY,len=sqrt(dx*dx+dy*dy); ghostX+=dx/len/3; ghostY+=dy/len/3; } void mouseReleased(){ for(int i=pt.size()-1;i>=0;i--){//倒過來的迴圈 pt.remove(i); } }
接著要改變打勾的顏色,先從往下的部分。
加上一些修改。
week07-9
改變打勾顏色跟判斷,把正勾改成綠色。
把倒勾改成黃色。
ArrayList<PVector>pt=new ArrayList<PVector>(); void setup(){ size(400,400); background(255); } float ghostX=400,ghostY=20; void mouseDragged(){ 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; float rightup=0,yellow_rightdown=0; 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); else if(dpx<40&&dpy>100) stroke(0,0,255); //else if(dpx>100&&dpy>100) stroke(0,255,0); else if(green_ok) stroke(0,255,0); //else if(green_part1) stroke(0,128,0); else if(yellow_ok) stroke(255,255,0); else stroke(0); //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); } float dx=200-ghostX,dy=200-ghostY,len=sqrt(dx*dx+dy*dy); ghostX+=dx/len/3; ghostY+=dy/len/3; } void mouseReleased(){ for(int i=pt.size()-1;i>=0;i--){//倒過來的迴圈 pt.remove(i); } }
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