Added ex. 37,38 structs

38_structs2.zig

@@ -0,0 +1,53 @@
+//
+// Grouping values in structs is not merely convenient. It also allows
+// us to treat the values as a single item when storing them, passing
+// them to functions, etc.
+// 
+// This exercise demonstrates how we can store structs in an array and
+// how doing so lets us print them all (both) using a loop.
+//
+const std = @import("std");
+
+const Class = enum{
+    wizard,
+    thief,
+    bard,
+    warrior,
+};
+
+const Character = struct{
+    class: Class,
+    gold: u32,
+    health: u8,
+    experience: u32,
+};
+
+pub fn main() void {
+    var chars: [2]Character = undefined;
+
+    // Glorp the Wise
+    chars[0] = Character{
+        .class      = Class.wizard,
+        .gold       = 20,
+        .health     = 100,
+        .experience = 10,
+    };
+
+    // Please add "Zump the Loud" with the following properties:
+    //
+    //     class      bard
+    //     gold       10
+    //     health     100
+    //     experience 20
+    //
+    // Feel free to run this program without adding Zump. What does
+    // it do and why?
+
+    // Printing all RPG characters in a loop:
+    for (chars) |c, num| {
+        std.debug.print("Character {} - G:{} H:{} XP:{}\n",
+                        .{num+1, c.gold, c.health, c.experience});
+    }
+
+    std.debug.print("\n", .{});
+}