037_structs.zig

//
// 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 that struct type 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,
    health: u8,
};

pub fn main() void {
    // Please initialize Glorp with 100 health.
    var glorp_the_wise = Character{
        .class = Class.wizard,
        .gold = 20,
        .experience = 10,
        .health = 100,
    };

    // 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.\n", .{
        glorp_the_wise.health,
        glorp_the_wise.gold,
    });
}