Box the compass: Difference between revisions
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(add RPL) |
Recombinant (talk | contribs) m (→{{header|Zig}}: Updated to use 0.11.0 enum casts) |
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=={{header|Zig}}== |
=={{header|Zig}}== |
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{{works with|Zig|0.11. |
{{works with|Zig|0.11.0}} |
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<syntaxhighlight lang="zig">const std = @import("std");</syntaxhighlight> |
<syntaxhighlight lang="zig">const std = @import("std");</syntaxhighlight> |
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<syntaxhighlight lang="zig">/// Degrees |
<syntaxhighlight lang="zig">/// Degrees is not constrained to the range 0 to 360 |
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fn degreesToCompassPoint(degrees: f32) []const u8 { |
fn degreesToCompassPoint(degrees: f32) []const u8 { |
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var d = degrees + comptime (11.25 / 2.0); |
var d = degrees + comptime (11.25 / 2.0); |
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while (d < 0) d += 360; |
while (d < 0) d += 360; |
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while (d >= 360) d -= 360; |
while (d >= 360) d -= 360; |
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const index: usize = @ |
const index: usize = @intFromFloat(@divFloor(d, 11.25)); |
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| ⚫ | |||
// Concatenation to overcome the inability of "zig fmt" to nicely format long arrays. |
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"North", "North by east", "North-northeast", "Northeast by north", |
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| ⚫ | |||
"Northeast", "Northeast by east", "East-northeast", "East by north", |
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"East", "East by south", "East-southeast", "Southeast by east", |
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"Southeast", "Southeast by south", "South-southeast", "South by east", |
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"South", "South by west", "South-southwest", "Southwest by south", |
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"Southwest", "Southwest by west", "West-southwest", "West by south", |
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"West", "West by north", "West-northwest", "Northwest by west", |
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"Northwest", "Northwest by north", "North-northwest", "North by west", |
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}; |
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.{ "Northwest", "Northwest by north", "North-northwest", "North by west" }; |
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return points[index]; |
return points[index]; |
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const stdout = std.io.getStdOut().writer(); |
const stdout = std.io.getStdOut().writer(); |
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try stdout.print("Index Heading Compass point\n", .{}); |
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for (0..33) |i| { |
for (0..33) |i| { |
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var heading = @ |
var heading = @as(f32, @floatFromInt(i)) * 11.25; |
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heading += switch (i % 3) { |
heading += switch (i % 3) { |
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1 => 5.62, |
1 => 5.62, |
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}; |
}; |
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const index = i % 32 + 1; |
const index = i % 32 + 1; |
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try stdout.print(" {d:2} {d:>6.2}° {s}\n", .{ index, heading, degreesToCompassPoint(heading) }); |
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} |
} |
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}</syntaxhighlight> |
}</syntaxhighlight> |
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