Optionally use terminal colour codes

src/openrct2/interface/StdInOutConsole.cpp

@@ -1,5 +1,6 @@
 #include "../thirdparty/linenoise.hpp"
 #include "../OpenRCT2.h"
+#include "../platform/Platform2.h"
 #include "Console.h"
 
 void StdInOutConsole::Start()
@@ -80,7 +81,7 @@ void StdInOutConsole::WriteLine(const std::string &s, uint32 colourFormat)
         }
     }
 
-    if (formatBegin.empty())
+    if (formatBegin.empty() || !Platform::IsColourTerminalSupported())
     {
         std::printf("%s\n", s.c_str());
     }

src/openrct2/platform/Platform.Posix.cpp

@@ -89,6 +89,22 @@ namespace Platform
         std::strftime(time, sizeof(time), "%X", std::gmtime(&timestamp));
         return std::string(time);
     }
+
+    bool IsColourTerminalSupported()
+    {
+        static bool hasChecked = false;
+        static bool isSupported = false;
+        if (!hasChecked)
+        {
+            auto term = GetEnvironmentVariable("TERM");
+            isSupported =
+                term != "cons25" &&
+                term != "dumb" &&
+                term != "emacs";
+            hasChecked = true;
+        }
+        return isSupported;
+    }
 }
 
 #endif

src/openrct2/platform/Platform.Win32.cpp

@@ -17,8 +17,6 @@
 #ifdef _WIN32
 
 #include <memory>
-
-#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <datetimeapi.h>
 #include <shlobj.h>
@@ -197,7 +195,75 @@ namespace Platform
         return result;
     }
 
-#ifdef __USE_SHGETKNOWNFOLDERPATH__
+    /**
+     * Checks if the current version of Windows supports ANSI colour codes.
+     * From Windows 10, build 10586 ANSI escape colour codes can be used on stdout.
+     */
+    static bool HasANSIColourSupport()
+    {
+        const DWORD MINV_MAJOR = 10, MINV_MINOR = 0, MINV_BUILD = 10586;
+        bool result = false;
+        HMODULE hModule = GetModuleHandleA("ntdll.dll");
+        if (hModule != nullptr)
+        {
+            using RtlGetVersionPtr = NTSTATUS(WINAPI *)(PRTL_OSVERSIONINFOW);
+            auto fn = (RtlGetVersionPtr)GetProcAddress(hModule, "RtlGetVersion");
+            if (fn != nullptr)
+            {
+                RTL_OSVERSIONINFOW rovi{};
+                rovi.dwOSVersionInfoSize = sizeof(rovi);
+                if (fn(&rovi) == 0)
+                {
+                    if (rovi.dwMajorVersion > MINV_MAJOR ||
+                        (rovi.dwMajorVersion == MINV_MAJOR &&
+                        (rovi.dwMinorVersion > MINV_MINOR ||
+                            (rovi.dwMinorVersion == MINV_MINOR &&
+                                rovi.dwBuildNumber >= MINV_BUILD))))
+                    {
+                        result = true;
+                    }
+                }
+            }
+        }
+        return result;
+    }
+
+    static void EnableANSIConsole()
+    {
+        if (HasANSIColourSupport())
+        {
+            auto handle = GetStdHandle(STD_OUTPUT_HANDLE);
+            DWORD mode;
+            GetConsoleMode(handle, &mode);
+            if (!(mode & ENABLE_VIRTUAL_TERMINAL_PROCESSING))
+            {
+                mode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+                SetConsoleMode(handle, mode);
+            }
+        }
+    }
+
+    bool IsColourTerminalSupported()
+    {
+        static bool hasChecked = false;
+        static bool isSupported = false;
+        if (!hasChecked)
+        {
+            if (HasANSIColourSupport())
+            {
+                EnableANSIConsole();
+                isSupported = true;
+            }
+            else
+            {
+                isSupported = false;
+            }
+            hasChecked = true;
+        }
+        return isSupported;
+    }
+
+ #ifdef __USE_SHGETKNOWNFOLDERPATH__
     static std::string WIN32_GetKnownFolderPath(REFKNOWNFOLDERID rfid)
     {
         std::string path;

src/openrct2/platform/Platform2.h

@@ -44,4 +44,6 @@ namespace Platform
 
     std::string FormatShortDate(std::time_t timestamp);
     std::string FormatTime(std::time_t timestamp);
+
+    bool IsColourTerminalSupported();
 }