From 1b2ad307590ec1360025ed0c5cbad758d9a55666 Mon Sep 17 00:00:00 2001
From: Alessandro Proto <me@alexdevs.me>
Date: Sun, 12 Feb 2023 17:32:43 +0100
Subject: [PATCH] Add togglable console window

---
 Capy64/Assets/bios.lua                    |  9 ++++++++
 Capy64/Extensions/Bindings/Common.cs      | 25 +++++++++++++++++++++
 Capy64/Extensions/GameWindowExtensions.cs | 15 +++++++++++++
 Capy64/Runtime/RuntimeManager.cs          | 27 +++++++++++++++++++++++
 4 files changed, 76 insertions(+)
 create mode 100644 Capy64/Extensions/Bindings/Common.cs

diff --git a/Capy64/Assets/bios.lua b/Capy64/Assets/bios.lua
index c4b05a6..14b57e3 100644
--- a/Capy64/Assets/bios.lua
+++ b/Capy64/Assets/bios.lua
@@ -142,6 +142,11 @@ local function installOS()
 	promptKey()
 end
 
+local function toggleConsole()
+	local status = getConsole()
+	setConsole(not status)
+end
+
 term.setBlink(false)
 
 local function setupScreen()
@@ -150,6 +155,10 @@ local function setupScreen()
 			"Open data folder",
 			openDataFolder,
 		},
+		{
+			"Toggle console window",
+			toggleConsole,
+		},
 		{
 			"Install default OS",
 			installOS,
diff --git a/Capy64/Extensions/Bindings/Common.cs b/Capy64/Extensions/Bindings/Common.cs
new file mode 100644
index 0000000..539ff01
--- /dev/null
+++ b/Capy64/Extensions/Bindings/Common.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Capy64.Extensions.Bindings;
+
+public partial class Common
+{
+    public const int SW_HIDE = 0;
+    public const int SW_SHOW = 5;
+
+    [LibraryImport("kernel32.dll")]
+    public static partial IntPtr GetConsoleWindow();
+
+    [LibraryImport("user32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool IsWindowVisible(IntPtr hWnd);
+
+    [LibraryImport("user32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool ShowWindow(IntPtr hWnd, int nCmdShow);
+}
diff --git a/Capy64/Extensions/GameWindowExtensions.cs b/Capy64/Extensions/GameWindowExtensions.cs
index 94005e4..486a339 100644
--- a/Capy64/Extensions/GameWindowExtensions.cs
+++ b/Capy64/Extensions/GameWindowExtensions.cs
@@ -54,4 +54,19 @@ public static class GameWindowExtensions
     {
         return window.GetWindowFlags().HasFlag(WindowFlags.SDL_WINDOW_MAXIMIZED);
     }
+
+    public static void ToggleConsole(this GameWindow _, bool show)
+    {
+        var console = Common.GetConsoleWindow();
+        if (console != IntPtr.Zero)
+            Common.ShowWindow(console, show ? Common.SW_SHOW : Common.SW_HIDE);
+    }
+
+    public static bool IsConsoleVisible(this GameWindow _)
+    {
+        var console = Common.GetConsoleWindow();
+        if (console != IntPtr.Zero)
+            return false;
+        return Common.IsWindowVisible(console);
+    }
 }
diff --git a/Capy64/Runtime/RuntimeManager.cs b/Capy64/Runtime/RuntimeManager.cs
index f944f2f..81271d8 100644
--- a/Capy64/Runtime/RuntimeManager.cs
+++ b/Capy64/Runtime/RuntimeManager.cs
@@ -1,5 +1,6 @@
 using Capy64.API;
 using Capy64.Eventing.Events;
+using Capy64.Extensions;
 using Capy64.Runtime.Libraries;
 using KeraLua;
 using System;
@@ -113,6 +114,12 @@ internal class RuntimeManager : IPlugin
         luaState.Thread.PushCFunction(L_Exit);
         luaState.Thread.SetGlobal("exit");
 
+        luaState.Thread.PushCFunction(L_SetConsole);
+        luaState.Thread.SetGlobal("setConsole");
+
+        luaState.Thread.PushCFunction(L_GetConsole);
+        luaState.Thread.SetGlobal("getConsole");
+
         var status = luaState.Thread.LoadFile("Assets/bios.lua");
         if (status != LuaStatus.OK)
         {
@@ -203,6 +210,26 @@ internal class RuntimeManager : IPlugin
         return 0;
     }
 
+    private static int L_SetConsole(IntPtr state)
+    {
+        var L = Lua.FromIntPtr(state);
+
+        var status = L.ToBoolean(1);
+        _game.Window.ToggleConsole(status);
+
+        return 0;
+    }
+
+    private static int L_GetConsole(IntPtr state)
+    {
+        var L = Lua.FromIntPtr(state);
+
+        var status = _game.Window.IsConsoleVisible();
+        L.PushBoolean(status);
+
+        return 1;
+    }
+
     private void OnInit(object sender, EventArgs e)
     {
         Start();