From de09f7a71caa5bd648554f838a55e73ded76cab9 Mon Sep 17 00:00:00 2001
From: mike <mpf84@pm.me>
Date: Sat, 6 Apr 2024 17:45:37 -0700
Subject: [PATCH] Added basic terminal detection for truecolor support.

---
 evennia/server/portal/telnet.py |  5 +++++
 evennia/server/portal/ttype.py  | 26 ++++++++++++++++++--------
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/evennia/server/portal/telnet.py b/evennia/server/portal/telnet.py
index cb577f3835..1b1e27db62 100644
--- a/evennia/server/portal/telnet.py
+++ b/evennia/server/portal/telnet.py
@@ -437,6 +437,9 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, _BASE_SESSION_CLASS):
         xterm256 = options.get(
             "xterm256", flags.get("XTERM256", False) if flags.get("TTYPE", False) else True
         )
+        truecolor = options.get(
+            "truecolor", flags.get("TRUECOLOR", False) if flags.get("TTYPE", False) else True
+        )
         useansi = options.get(
             "ansi", flags.get("ANSI", False) if flags.get("TTYPE", False) else True
         )
@@ -460,6 +463,7 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, _BASE_SESSION_CLASS):
                     _RE_N.sub("", prompt) + ("||n" if prompt.endswith("|") else "|n"),
                     strip_ansi=nocolor,
                     xterm256=xterm256,
+                    truecolor=truecolor
                 )
                 if mxp:
                     prompt = mxp_parse(prompt)
@@ -496,6 +500,7 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, _BASE_SESSION_CLASS):
                     strip_ansi=nocolor,
                     xterm256=xterm256,
                     mxp=mxp,
+                    truecolor=truecolor
                 )
                 if mxp:
                     linetosend = mxp_parse(linetosend)
diff --git a/evennia/server/portal/ttype.py b/evennia/server/portal/ttype.py
index 532d43f8a4..3a6be64c72 100644
--- a/evennia/server/portal/ttype.py
+++ b/evennia/server/portal/ttype.py
@@ -130,10 +130,10 @@ class Ttype:
                     self.protocol.protocol_flags["NOPROMPTGOAHEAD"] = False
 
             if (
-                clientname.startswith("XTERM")
-                or clientname.endswith("-256COLOR")
-                or clientname
-                in (
+                    clientname.startswith("XTERM")
+                    or clientname.endswith("-256COLOR")
+                    or clientname
+                    in (
                     "ATLANTIS",  # > 0.9.9.0 (aug 2009)
                     "CMUD",  # > 3.04 (mar 2009)
                     "KILDCLIENT",  # > 2.2.0 (sep 2005)
@@ -143,13 +143,23 @@ class Ttype:
                     "BEIP",  # > 2.00.206 (late 2009) (BeipMu)
                     "POTATO",  # > 2.00 (maybe earlier)
                     "TINYFUGUE",  # > 4.x (maybe earlier)
-                )
+            )
             ):
                 xterm256 = True
 
+            # use name to identify support for xterm truecolor
+            truecolor = False
+            if (clientname.endswith("-TRUECOLOR") or
+                    clientname in (
+                            "AXMUD",
+                            "TINTIN"
+                    )):
+                truecolor = True
+
             # all clients supporting TTYPE at all seem to support ANSI
             self.protocol.protocol_flags["ANSI"] = True
             self.protocol.protocol_flags["XTERM256"] = xterm256
+            self.protocol.protocol_flags["TRUECOLOR"] = truecolor
             self.protocol.protocol_flags["CLIENTNAME"] = clientname
             self.protocol.requestNegotiation(TTYPE, SEND)
 
@@ -159,9 +169,9 @@ class Ttype:
             tupper = term.upper()
             # identify xterm256 based on flag
             xterm256 = (
-                tupper.endswith("-256COLOR")
-                or tupper.endswith("XTERM")  # Apple Terminal, old Tintin
-                and not tupper.endswith("-COLOR")  # old Tintin, Putty
+                    tupper.endswith("-256COLOR")
+                    or tupper.endswith("XTERM")  # Apple Terminal, old Tintin
+                    and not tupper.endswith("-COLOR")  # old Tintin, Putty
             )
             if xterm256:
                 self.protocol.protocol_flags["ANSI"] = True