Added ex. 37,38 structs

1 files changed, 59 insertions, 0 deletions

diff --git a/37_structs.zig b/37_structs.zig
new file mode 100644
index 0000000..dd4b633
--- /dev/null
+++ b/37_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, .y=27 };
+//     point2 = Point{ .x=7, .y=13, .y=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
+    });
+}