From e370e2bb666e04774f99b940b27a34bae691694a Mon Sep 17 00:00:00 2001
From: Dendy Faist <dendy@fai.st>
Date: Sat, 30 Sep 2023 18:49:14 +0200
Subject: [PATCH] Implement getting all the input names

---
 src/input.zig | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 src/main.zig  |  5 +++--
 2 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/src/input.zig b/src/input.zig
index 4490a6b..f204b8d 100644
--- a/src/input.zig
+++ b/src/input.zig
@@ -1,4 +1,7 @@
+const Self = @This();
+
 const rl = @import("raylib.zig");
+const std = @import("std");
 
 pub const Input = struct {
     name: []const u8,
@@ -16,6 +19,12 @@ pub const Input = struct {
     }
 };
 
+pub fn loadConfig() void {
+    for (comptime getInputNames()) |name| {
+        std.debug.print("{s}\n", .{name});
+    }
+}
+
 fn init(comptime name: []const u8, comptime key_code: []const u8) Input {
     return Input{
         .name = name,
@@ -38,3 +47,40 @@ pub var game_drop = init("Drop Piece", "W");
 pub var game_swap_piece = init("Swap Piece", "SPACE");
 pub var game_rotate_r = init("Rotate Piece Clockwise", "RIGHT");
 pub var game_rotate_l = init("Rotate Piece Counterclockwise", "LEFT");
+
+// Get the names of the Input(s) defined in this file with introspection
+fn getInputNames() [getInputCount()][]const u8 {
+    comptime {
+        const decls = std.meta.declarations(Self);
+
+        var ret: [getInputCount()][]const u8 = undefined;
+
+        var i: usize = 0;
+        inline for (decls) |i_decl| {
+            const field = @field(Self, i_decl.name);
+
+            if (@TypeOf(field) == Input) {
+                ret[i] = i_decl.name;
+                i += 1;
+            }
+        }
+
+        return ret;
+    }
+}
+
+// With reflection count the amount of declarations of type "Input"
+fn getInputCount() usize {
+    comptime {
+        const decls = std.meta.declarations(Self);
+
+        var i: usize = 0;
+        inline for (decls) |i_decl| {
+            const field = @field(Self, i_decl.name);
+
+            if (@TypeOf(field) == Input) i += 1;
+        }
+
+        return i;
+    }
+}
diff --git a/src/main.zig b/src/main.zig
index b285b4b..151cd0e 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -8,15 +8,16 @@ const MainMenu = @import("MainMenu.zig");
 const config = @import("Config/config.zig");
 
 const State = @import("flow.zig").State;
+const input = @import("input.zig");
 
 pub fn main() !void {
-
     var configIterator = config.getConfigIterator("test") catch unreachable;
     while (configIterator.next()) |option| {
-        std.debug.print("Key: {s}, Option: {s}\n", .{option.key, option.value});
+        std.debug.print("Key: {s}, Option: {s}\n", .{ option.key, option.value });
     }
     configIterator.deinit();
 
+    input.loadConfig();
 
     var renderer = try Renderer.init();
     defer renderer.deinit();