Someone
public cpp v1 · immutableDT=t3;VXDT = VX*DT;pX=pX+VXDT;pY=pY+VY*0.5*DT-0.5*G*DT*DT;VY=VY-G*DT;if (pX>=1) VX=-VY;if (pY>=1) VY=-VY;if (pX<=-1) VX=-VX;if (pY<=-1) VY=-VY;DT=t3;VXDT = VX*DT;pX=pX+VXDT;pY=pY+VY*0.5*DT-0.5*G*DT*DT;VY=VY-G*DT;if (pX>=1) VX=-VY;if (pY>=1) VY=-VY;if (pX<=-1) VX=-VX;if (pY<=-1) VY=-VY;