Files
mtgodot-poc/project/main.gd
T
Claude c52b8657c4 M0' scaffold: Godot 4.7 + GDExtension + libgr2 wired up (macOS)
- extension/: godot-cpp submodule (master, API 4.7), Metin2Model node
  registered, links xrender-poc/libgr2 via sibling-dir reference.
- project/: Godot 4.7 project — orbit camera + DirectionalLight3D (shadows)
  + WorldEnvironment/procedural sky + placeholder cube; main.gd probes the
  extension and can run libgr2 on a real .gr2 (MTGODOT_PROBE_GR2).
- build.sh one-shot build into project/bin/.
- docs/GODOT-POC-PLAN.md (phased: Phase 1 macOS -> M0'/M1/M2/M2.5).

Verified on this machine:
  [mtgodot] Metin2Model registered OK — libgr2 linked
  probe_gr2(warrior_cheongrin.gr2) -> gr2 OK: format_version=6 sections=8
  Metal Forward+ renders the scene (test/golden/m0-scaffold.png).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaHYEY9rwLWt21PULiYjeJ
2026-08-29 09:09:55 +09:00

126 lines
3.6 KiB
GDScript

extends Node3D
## mtgodot-poc — M0' harness.
##
## Builds the minimal scene the plan asks for (orbit camera + DirectionalLight3D
## with shadows + WorldEnvironment/sky + placeholder cube + an empty Metin2Model),
## then reports whether the GDExtension loaded.
##
## M1 will replace the cube with Metin2Model.load_gr2(...) output.
const ORBIT_SPEED := 0.01
const ZOOM_STEP := 0.3
const PITCH_LIMIT := 1.45
var _cam: Camera3D
var _yaw := 0.6
var _pitch := 0.45
var _dist := 4.0
var _target := Vector3(0.0, 1.0, 0.0)
var _dragging := false
func _ready() -> void:
_build_environment()
_build_sun()
_build_camera()
_build_placeholder()
_probe_extension()
print("[mtgodot] M0' harness ready — drag: orbit, wheel: zoom, F2: screenshot")
# Batch capture: MTGODOT_AUTOSHOT=/abs/path.png godot --path project
var autoshot := OS.get_environment("MTGODOT_AUTOSHOT")
if autoshot != "":
await get_tree().create_timer(0.8).timeout
var img := get_viewport().get_texture().get_image()
img.save_png(autoshot)
print("[mtgodot] autoshot -> ", autoshot)
get_tree().quit()
func _build_environment() -> void:
var we := WorldEnvironment.new()
var env := Environment.new()
var sky := Sky.new()
sky.sky_material = ProceduralSkyMaterial.new()
env.background_mode = Environment.BG_SKY
env.sky = sky
env.ambient_light_source = Environment.AMBIENT_SOURCE_SKY
env.tonemap_mode = Environment.TONE_MAPPER_FILMIC
we.environment = env
add_child(we)
func _build_sun() -> void:
var sun := DirectionalLight3D.new()
sun.rotation_degrees = Vector3(-45.0, -35.0, 0.0)
sun.shadow_enabled = true
add_child(sun)
func _build_camera() -> void:
_cam = Camera3D.new()
_cam.current = true
_cam.fov = 55.0
add_child(_cam)
_update_camera()
func _build_placeholder() -> void:
var cube := MeshInstance3D.new()
cube.name = "Placeholder"
cube.mesh = BoxMesh.new()
cube.position = _target
add_child(cube)
func _probe_extension() -> void:
if not ClassDB.class_exists("Metin2Model"):
push_error("[mtgodot] Metin2Model NOT registered — GDExtension failed to load")
return
var m := ClassDB.instantiate("Metin2Model") as Node3D
m.name = "Metin2Model"
add_child(m)
print("[mtgodot] Metin2Model registered OK — ", m.call("libgr2_info"))
# Optional: point MTGODOT_PROBE_GR2 at a real .gr2 to exercise libgr2 end to end.
var probe := OS.get_environment("MTGODOT_PROBE_GR2")
if probe != "":
print("[mtgodot] probe_gr2(", probe, ") -> ", m.call("probe_gr2", probe))
func _update_camera() -> void:
var offset := Vector3(
cos(_pitch) * sin(_yaw),
sin(_pitch),
cos(_pitch) * cos(_yaw)) * _dist
_cam.position = _target + offset
_cam.look_at(_target, Vector3.UP)
func _unhandled_input(event: InputEvent) -> void:
if event is InputEventMouseButton:
var mb := event as InputEventMouseButton
match mb.button_index:
MOUSE_BUTTON_LEFT:
_dragging = mb.pressed
MOUSE_BUTTON_WHEEL_UP:
_dist = maxf(0.5, _dist - ZOOM_STEP)
_update_camera()
MOUSE_BUTTON_WHEEL_DOWN:
_dist = minf(50.0, _dist + ZOOM_STEP)
_update_camera()
elif event is InputEventMouseMotion and _dragging:
var mm := event as InputEventMouseMotion
_yaw -= mm.relative.x * ORBIT_SPEED
_pitch = clampf(_pitch + mm.relative.y * ORBIT_SPEED, -PITCH_LIMIT, PITCH_LIMIT)
_update_camera()
elif event is InputEventKey:
var k := event as InputEventKey
if k.pressed and k.keycode == KEY_F2:
_screenshot()
func _screenshot() -> void:
var img := get_viewport().get_texture().get_image()
var path := "user://shot_%d.png" % Time.get_ticks_msec()
img.save_png(path)
print("[mtgodot] screenshot -> ", ProjectSettings.globalize_path(path))