"999 is enough for anybody" triple-zero padding (#18)

When I hit 999 exercises, I will finally have reached the ultimate
state of soteriological release and no more exercises will be needed.
The cycle will be complete. All that will be left is perfect quietude,
freedom, and highest happiness.

1 files changed, 59 insertions, 0 deletions

diff --git a/exercises/037_structs.zig b/exercises/037_structs.zig
new file mode 100644
index 0000000..8082248
--- /dev/null
+++ b/exercises/037_structs.zig
@@ -0,0 +1,59 @@
+//
+// Being able to group values together lets us turn this:
+//
+//     point1_x = 3;
+//     point1_y = 16;
+//     point1_z = 27;
+//     point2_x = 7;
+//     point2_y = 13;
+//     point2_z = 34;
+//
+// into this:
+//
+//     point1 = Point{ .x=3, .y=16, .z=27 };
+//     point2 = Point{ .x=7, .y=13, .z=34 };
+//
+// The Point above is an example of a "struct" (short for "structure").
+// Here's how it could have been defined:
+//
+//     const Point = struct{ x: u32, y: u32, z: u32 };
+//
+// Let's store something fun with a struct: a roleplaying character!
+//
+const std = @import("std");
+
+// We'll use an enum to specify the character class.
+const Class = enum {
+    wizard,
+    thief,
+    bard,
+    warrior,
+};
+
+// Please add a new property to this struct called "health" and make
+// it a u8 integer type.
+const Character = struct {
+    class: Class,
+    gold: u32,
+    experience: u32,
+};
+
+pub fn main() void {
+    // Please initialize Glorp with 100 health.
+    var glorp_the_wise = Character{
+        .class = Class.wizard,
+        .gold = 20,
+        .experience = 10,
+    };
+
+    // Glorp gains some gold.
+    glorp_the_wise.gold += 5;
+
+    // Ouch! Glorp takes a punch!
+    glorp_the_wise.health -= 10;
+
+    std.debug.print("Your wizard has {} health and {} gold.", .{
+        glorp_the_wise.health,
+        glorp_the_wise.gold,
+    });
+}