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fixed a var name

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kbrannen
2023-04-21 00:31:04 -05:00
parent d300d2d851
commit d24a5feb6b
1 changed files with 12 additions and 11 deletions
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23
13_Bounce/perl/bounce.pl
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@@ -38,7 +38,8 @@ while (1)
my $time_inc; # time increment, probably in fractions of seconds
my $velocity; # velocity in feet/sec
my $coeff_elas; # coeeficent of elasticity
my $L; # position on line
my $line_pos; # position on line
my $S1 # duration in full seconds?
# get input
print "TIME INCREMENT (SEC, 0=QUIT): "; chomp($time_inc = <>);
@@ -52,7 +53,7 @@ while (1)
}
print "\nFEET\n";
my $S1 = int(70.0 / ($velocity / (16.0 * $time_inc)));
$S1 = int(70.0 / ($velocity / (16.0 * $time_inc)));
for my $i (1 .. $S1)
{
$T[$i] = $velocity * $coeff_elas ** ($i - 1) / 16.0;
@@ -64,28 +65,28 @@ while (1)
#print "h=$height\n"; # kevin
if (int($height) == $height) { print sprintf("%2d", $height); }
else { print " "; }
$L = 0;
$line_pos = 0;
my $curr_line = "";
for my $i (1 .. $S1)
{
my $time;
for ($time=0 ; $time <= $T[$i] ; $time += $time_inc)
{
$L += $time_inc;
$line_pos += $time_inc;
next if (abs($height - (.5 * (-32) * $time ** 2.0 + $velocity * $coeff_elas ** ($i - 1) * $time)) > .25);
$curr_line = line_tab($curr_line, ($L / $time_inc), "0");
$curr_line = line_tab($curr_line, ($line_pos / $time_inc), "0");
}
$time = ($T[$i + 1] // 0) / 2;
$time = ($T[$i + 1] // 0) / 2; # we can reach 1 past the end, use 0 if that happens
last if (-16.0 * $time ** 2.0 + $velocity * $coeff_elas ** ($i - 1) * $time < $height);
}
print "$curr_line\n";
}
print " .";
print "." x (int($L + 1) / $time_inc + 1), "\n";
print "." x (int($line_pos + 1) / $time_inc + 1), "\n";
print " 0";
my $cl = "";
for my $i (1 .. int($L + .9995)) { $cl = line_tab($cl, int($i / $time_inc), $i); }
print "$cl\n";
print " " x (int($L + 1) / (2 * $time_inc) - 2), "SECONDS\n\n";
my $curr_line = "";
for my $i (1 .. int($line_pos + .9995)) { $curr_line = line_tab($curr_line, int($i / $time_inc), $i); }
print "$curr_line\n";
print " " x (int($line_pos + 1) / (2 * $time_inc) - 2), "SECONDS\n\n";
}