2V3-b: click on the ground to walk; read the terrain attribute map

CScreen::SetCursorPosition and CPythonGraphic::SetCursorPosition are the 40250
bodies, so RenderGame builds the pick ray under the cursor each frame.
CPythonBackground::GetPickingPoint* march that ray as
CMapOutdoor::__PickTerrainHeight does, against the native CMapManager height
(PR_FLOAT_TO_INT's x87 rounding becomes floor); object picking waits for
CMapOutdoor. CMapManager::isAttrOn reads the packed <map>/<xxxyyy>/attr.atr
as CMapOutdoor::isAttrOn + CTerrain::isAttrOn do, and CheckAdvancing with its
collision checkers is verbatim (no map objects are registered yet). All of
this stays in the pending/platform layer and is marked ADAPTED.

port.login_flow clicks the ground below the actor after the key walk. The
actor walks to the picked point (334 cm offline), and the fake server sees
FUNC_MOVE, then FUNC_WAIT. It also checks that the actor's cell is free and
that its terrain block has blocked cells. port.login_live against the real
server passed (key 133 cm, click 296 cm), and python_game_render_test.sh
passes offline. MT_TEST_MODE=python_ui now adds the 3D surface, so the port
route can be played by hand.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

audit/history.jsonl

@@ -525,3 +525,4 @@
 {"time":"2026-09-23T12:54:00Z","event":"port_round","unit":"PORT-PLAN 2V2-e.5: native map height and character light transition adapter","ported":[],"adapted":["CMapManager Warp-facing AtlasInfo/Setting.txt/height.raw/.msenv loader and 40250 triangle height interpolation","CPythonBackground native map selection/local coordinates/character and background SetLight","Python 3D surface consumes native map name/local frame, removes initial terrain elevation shift and rebuilds on map change","EterBase/Utils MIN/MAX/MINMAX and fMIN/fMAX/fMINMAX exact 40250 pure functions"],"divergent":["CMapOutdoor and placed-object height, attributes, fog, minimap and portal lifecycle remain unported; native map functions are marked ADAPTED/TODO rather than PORTED"],"needs_live":["MT_LIVE_* credentials absent; real-server terrain and cross-map warp screenshots pending"],"tests":["script/python_game_render_test.sh offline: PASS (4/4 native light0, finite view, native map, actor foot-ground delta 0.1 cm, textured ground screenshot)","extension/tests/port_utils_test.cpp: PASS","port_map.py check: 0 errors"],"todo":["full CMapOutdoor/MapManager/PythonBackground unit port","real-server and cross-map visual smoke","2V3 player/input/event/movement chain"]}
 {"time":"2026-09-23T13:09:00Z","event":"test_run","id":"PORT-PLAN 2V2-e.5","result":"PASS","tests":["script/port_gate.sh macos: PASS (12 port tests; port.login_live skipped without MT_LIVE_*)","script/python_game_render_test.sh: PASS (4/4 native light0, finite camera matrix, 0.1 cm foot-ground difference, 559 terrain texture contrasts)","port_map.py check: 0 errors","git diff --check: PASS"],"reason":"The first sandboxed port gate run denied localhost sockets; loopback-enabled rerun passed. Full CMapOutdoor and live/cross-map evidence remain outstanding."}
 {"time": "2026-09-23T14:45:00Z", "event": "port_round", "unit": "PORT-PLAN 2V3-a: player/input/event handler chain and Granny root motion", "ported": ["UserInterface/PythonPlayer.cpp", "UserInterface/PythonPlayerInput.cpp", "UserInterface/PythonPlayerInputKeyboard.cpp", "UserInterface/PythonPlayerInputMouse.cpp", "UserInterface/PythonPlayerEventHandler.cpp", "UserInterface/PythonPlayerSkill.cpp", "UserInterface/PythonPlayerModule.cpp", "UserInterface/GameType.cpp"], "adapted": ["GrannyUpdateModelMatrix constant-extraction root motion from TrackGroups[0] AccumulationFlags/LoopTranslation (libgr2)"], "divergent": ["VDA accumulation not implemented", "CPythonSkill/CItemData/CItemManager/CPythonItem callees remain pending stubs"], "needs_live": [], "tests": ["port.login_flow: DIK_UP walked 108 cm; fake server got CG_MOVE FUNC_MOVE then FUNC_WAIT at moved y", "port.login_live 192.168.21.203: PASS, walked 132 cm", "ctest all: PASS (login_live skipped without MT_LIVE_*)", "port_map.py check: 0 errors"], "todo": ["mouse click-to-move and attack", "CheckAdvancing/map attribute stubs", "delete legacy movement when default route switches to port"]}
+{"time": "2026-09-23T15:00:00Z", "event": "port_round", "unit": "PORT-PLAN 2V3-b: click-to-move, terrain picking and attribute map", "ported": [], "adapted": ["CScreen::SetCursorPosition / CPythonGraphic::SetCursorPosition verbatim in platform layer", "CPythonBackground::GetPickingPoint* terrain half via CMapOutdoor::__PickTerrainHeight over native height", "CMapManager::isAttrOn via CMapOutdoor/CTerrain::isAttrOn over packed attr.atr", "CPythonBackground::CheckAdvancing + collision checkers verbatim (no map objects registered yet)"], "divergent": ["object picking and object collision wait for CMapOutdoor"], "needs_live": [], "tests": ["port.login_flow: click walked 334 cm, FUNC_MOVE..FUNC_WAIT; 17814 blocked cells", "port.login_live 192.168.21.203: PASS (key 133 cm, click 296 cm, 11406 blocked cells)", "script/python_game_render_test.sh offline: PASS", "ctest all: 19/19 (login_live skipped without env)", "port_map.py check: 0 errors"], "todo": ["switch client_main default to the port route and delete the legacy GDScript client"]}