Modify a text file: $/r.java
$/r.java
/// Project 4 float left=50,top=50,right=550,bottom=350; float net= (left+right) / 2; float ballX=left, ballY=top+10; float ballDX=3, ballDY=2; void setup() { size(600,500); } void draw() { scene(); ball(); } void scene() { background(27, 247, 87); pooltable (); } void pooltable() { fill(155, 134, 14); stroke(1); strokeWeight(15); rectMode(CORNERS); rect(left,top,right,bottom); strokeWeight(10); stroke(100,50,50); line( net,top, net,bottom ); for ( float z=top; z<bottom; z=z+30 ) { stroke(255); strokeWeight(1); line( net-7,z, net+7,z-5 ); line( net-7,z-5, net+7,z ); } } void ball() { if (ballX<left || ballX>right) ballDX= -ballDX; if (ballY<top || ballY>bottom) ballDY= -ballDY; ballX += ballDX; ballY += ballDY; strokeWeight (1); fill(255,0,0); ellipse(ballX,ballY,15,15 ); }