week03

畫出三角形,畫出角度,使用迴圈讓他重覆執行畫出迷幻園行中的三角形

void setup(){ size (500,500); } void draw(){ ellipse(250,250,480,480); for(float angle=0; angle<PI*2; angle+=PI/3){ for(int r=0;r<=240;r+=20){ noFill(); triangle(250,250,250+r*cos(angle),250+r*sin(angle), 250+r*cos(angle+PI/3),250+r*sin(angle+PI/3)); } } }












畫出會彈跳的mairo,慢慢彈跳變低,碰到邊界就反彈很酷

PImage imgmario; float marioX=0,marioY=0,marioVX=0.5,marioVY=0,marioAX=0,marioAY=0.1; void setup(){ size (400,600); imgmario=loadImage("mario.png"); } void draw(){ background(255); image (imgmario,marioX,marioY,100,150); marioX+=marioVX; marioVX+=marioAX; marioY+=marioVY; marioVY+=marioAY; if(marioY>600-150)marioVY*=-0.9; if(marioX>400-100)marioVX*=-1; if(marioY<0)marioVY*=-0.9; if(marioY<0)marioVX*=-1; if(marioX<300)marioVX=-marioVX; if(marioX>0)marioVX=-marioVX; } void keyPressed(){ if(keyCode==UP){marioY-=5;} if(keyCode==DOWN){marioY+=5;} if(keyCode==LEFT){marioX-=5;} if(keyCode==RIGHT){marioX+=5;} }