■

<?
num=1
t = obj.frame
x0_init=180.5
x0_interval = 70.5
x0 = x0_init - (num-1)*x0_interval
y0 = -404.95
vx0 = 2.62
vy0 = 0.072
g = 0.033
e = 0.9257
A = 356.59
L = 214.86

x = x0 + vx0 * t
while math.abs(x) > L do
    if x > L then
        x = 2*L-x
    else
        x = -2*L-x
    end
end

vy1 = math.sqrt(vy0^2 + 2 * g * (A-y0))
T1 = ( vy1-vy0) / g
if t<T1 then
    y=y0+vy0*t+g*t^2/2
else
    y = A - e * vy1 * (t - T1) + g * (t - T1)^2 / 2
end
obj.load("figure", "円", 0xffff00, 70, 4)
obj.draw(x-obj.x, y-obj.y)
?>