Globalize textures, materials and gui

src/AppContext.zig

@@ -1,11 +1,20 @@
+//! This module contains some common global variables, which mostly refer to
+//! singleton modules that are active throughout entire program's runtime.
+//!
+//! These globals can be safely referenced during and after game initialization.
+
 const AppContext = @This();
 const std = @import("std");
 
+const media = @import("media");
 const glfw = @import("zglfw");
 
 const Atoms = @import("engine/Atoms.zig");
 const Engine = @import("engine/Engine.zig");
+const Gui = @import("engine/Gui.zig");
+const Materials = @import("engine/Materials.zig");
 const Swapchain = @import("engine/Swapchain.zig");
+const Textures = @import("engine/Textures.zig");
 const VkAllocator = @import("engine/VkAllocator.zig");
 
 pub var allocator_general: std.mem.Allocator = undefined;
@@ -13,8 +22,13 @@ pub var allocator_frame: std.mem.Allocator = undefined;
 pub var allocator_persistent: std.mem.Allocator = undefined;
 pub var io: std.Io = undefined;
 pub var vk_allocator: *VkAllocator = undefined;
+pub var stbi: *media.stbi = undefined;
 
 pub var window: *glfw.Window = undefined;
 pub var atoms: *Atoms = undefined;
 pub var engine: *Engine = undefined;
 pub var swapchain: *Swapchain = undefined;
+
+pub var textures: *Textures = undefined;
+pub var materials: *Materials = undefined;
+pub var gui: *Gui = undefined;