feat: 3D blobber dungeon generator (PR 1)
Replaces the 2D-only demo pipeline with a 3D cell-based blobber generator. Per-cell face walls, per-material mesh emission, and a GDExtension binding that returns a Dictionary with ArrayMesh surfaces the demo consumes directly. - src/blobber/: cell3d_t data model, dungeon container, pipeline that wraps the 2D generator per level and materializes into cell3d - src/mesh/: face-quad emitter with per-material groups + .obj dump - src/genesis3d_main.c: new CLI driving the blobber + mesh - godot/: BrogueGen.generate_dungeon(seed, num_levels, depth) binding with dungeon_to_dict packing cells + mesh surfaces - demo/: demo_blobber.tscn + dungeon_builder.gd, func_godot addon for the .map export path, point/entity templates, TrenchBroom docs - Retired: old arcade/FPS demo scenes and their scripts, unused meshlib Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
saarsena@gmail.com
parent
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160 changed files with 7209 additions and 2072 deletions
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@ -1,8 +1,152 @@
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[gd_scene format=3 uid="uid://c0broguelarge"]
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[gd_scene format=3 uid="uid://c2gdxshrhuv3t"]
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[ext_resource type="Script" path="res://scripts/demo_fps.gd" id="1_demofps"]
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[ext_resource type="Script" path="res://scripts/player.gd" id="2_player"]
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[ext_resource type="Script" path="res://scripts/fps_overlay.gd" id="3_fpsov"]
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[ext_resource type="Script" uid="uid://bj1fb7syiqys7" path="res://scripts/player.gd" id="2_player"]
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[sub_resource type="GDScript" id="GDScript_aw1u5"]
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script/source = "extends Node3D
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# First-person demo. Generates a grid of chunks (each a 79×29 dungeon) times
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# level_count stacked layers. Default is 1×1 chunks × 3 levels. Bump
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# chunks_x / chunks_y to stress-test the renderer with larger worlds.
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const T_NOTHING := 0
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const T_FLOOR := 1
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const T_WALL := 2
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const T_DOOR := 3
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const T_CORRIDOR := 4
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const T_LIQUID := 5
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const T_BRIDGE := 6
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const T_STAIRS_UP := 7
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const T_STAIRS_DOWN := 8
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const L_WATER := 1
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const L_LAVA := 2
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const L_CHASM := 3
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const L_BRIMSTONE := 4
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const TILE_FLOOR := 0
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const TILE_WALL := 1
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const TILE_DOOR := 2
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const TILE_CORRIDOR := 3
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const TILE_WATER := 4
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const TILE_LAVA := 5
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const TILE_BRIMSTONE := 6
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const TILE_BRIDGE := 7
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const TILE_STAIRS_UP := 8
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const TILE_STAIRS_DOWN := 9
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const CHUNK_W := 79
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const CHUNK_H := 29
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@export var base_seed: int = 2028
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@export var depth_start: int = 20
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@export var level_count: int = 3
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@export var level_spacing: float = 6.0
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@export var chunks_x: int = 1
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@export var chunks_y: int = 1
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@export var player_spawn_height: float = 1.1
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@onready var levels_root: Node3D = $Levels
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@onready var player: CharacterBody3D = $Player
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@onready var fps_overlay: Node = $FPSOverlay if has_node(\"FPSOverlay\") else null
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var _mesh_library: MeshLibrary
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func _ready() -> void:
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var t0 := Time.get_ticks_msec()
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_mesh_library = MeshLibraryBuilder.build(true)
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var total_cells := 0
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var total_chunks := 0
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var spawn_world := Vector3.ZERO
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var spawn_found := false
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for level_index in range(level_count):
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for cy in range(chunks_y):
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for cx in range(chunks_x):
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var seed := base_seed \\
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+ level_index * 1000 \\
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+ cy * chunks_x + cx
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var depth := depth_start + level_index
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var gen := BrogueGen.new()
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var grid: Dictionary = gen.generate(seed, depth)
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gen.free()
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var grid_map := GridMap.new()
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grid_map.name = \"L%d_C%d_%d\" % [level_index, cx, cy]
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grid_map.mesh_library = _mesh_library
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grid_map.cell_size = Vector3(1, 1, 1)
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grid_map.position = Vector3(
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cx * CHUNK_W,
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-level_index * level_spacing,
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cy * CHUNK_H
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)
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levels_root.add_child(grid_map)
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var cells := _populate_level(grid_map, grid)
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total_cells += cells
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total_chunks += 1
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# First up-stair on level 0, chunk (0,0) is the spawn point.
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if not spawn_found and level_index == 0 and cx == 0 and cy == 0:
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var up: Vector2i = grid[\"stairs_up\"] as Vector2i
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if up.x >= 0:
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spawn_world = Vector3(up.x, player_spawn_height, up.y)
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spawn_found = true
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if not spawn_found:
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spawn_world = Vector3(CHUNK_W * 0.5, player_spawn_height, CHUNK_H * 0.5)
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player.position = spawn_world
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var build_ms := Time.get_ticks_msec() - t0
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var info := \"%d chunks (%dx%d x %d lvls) %d placed cells build=%d ms\" % [
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total_chunks, chunks_x, chunks_y, level_count, total_cells, build_ms,
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]
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print(info)
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print(\"Player spawned at %s\" % spawn_world)
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if fps_overlay and fps_overlay.has_method(\"set_subtitle\"):
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fps_overlay.set_subtitle(info)
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# Place every non-chasm cell into the GridMap. Returns the number of cells
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# actually placed (excludes T_NOTHING and chasms).
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func _populate_level(grid_map: GridMap, grid: Dictionary) -> int:
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var w: int = grid[\"width\"]
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var h: int = grid[\"height\"]
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var terrain: PackedByteArray = grid[\"terrain\"]
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var liquid: PackedByteArray = grid[\"liquid\"]
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var placed := 0
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for y in range(h):
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for x in range(w):
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var idx := y * w + x
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var t: int = terrain[idx]
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var liq: int = liquid[idx]
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if t == T_LIQUID and liq == L_CHASM:
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continue
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var tile_id := _tile_for(t, liq)
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if tile_id == -1:
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continue
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grid_map.set_cell_item(Vector3i(x, 0, y), tile_id)
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placed += 1
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return placed
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func _tile_for(terrain: int, liquid: int) -> int:
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match terrain:
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T_FLOOR: return TILE_FLOOR
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T_CORRIDOR: return TILE_CORRIDOR
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T_DOOR: return TILE_DOOR
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T_WALL: return TILE_WALL
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T_BRIDGE: return TILE_BRIDGE
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T_STAIRS_UP: return TILE_STAIRS_UP
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T_STAIRS_DOWN: return TILE_STAIRS_DOWN
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T_LIQUID:
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match liquid:
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L_WATER: return TILE_WATER
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L_LAVA: return TILE_LAVA
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L_BRIMSTONE: return TILE_BRIMSTONE
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_: return TILE_WATER
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_: return -1
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"
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[sub_resource type="Environment" id="Env1"]
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background_mode = 1
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@ -10,51 +154,65 @@ background_color = Color(0.02, 0.02, 0.03, 1)
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ambient_light_source = 2
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ambient_light_color = Color(0.6, 0.6, 0.7, 1)
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ambient_light_energy = 0.35
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fog_enabled = false
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[sub_resource type="CapsuleShape3D" id="Capsule1"]
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radius = 0.3
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height = 1.7
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[node name="DemoLarge" type="Node3D"]
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script = ExtResource("1_demofps")
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base_seed = 2028
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depth_start = 20
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level_count = 3
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level_spacing = 6.0
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[sub_resource type="GDScript" id="GDScript_5guhk"]
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script/source = "extends CanvasLayer
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# Cheap FPS + stats overlay. Attach as a child of any scene.
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# The parent scene can call set_subtitle(text) to add a line below the FPS.
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@onready var label: Label = $Label
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var _subtitle := \"\"
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func set_subtitle(text: String) -> void:
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_subtitle = text
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func _process(_delta: float) -> void:
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var fps := Engine.get_frames_per_second()
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var frame_ms := 0.0 if fps <= 0 else 1000.0 / fps
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var txt := \"FPS: %d %.2f ms\" % [fps, frame_ms]
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if _subtitle != \"\":
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txt += \"\\n\" + _subtitle
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label.text = txt
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"
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[node name="DemoLarge" type="Node3D" unique_id=1477096723]
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script = SubResource("GDScript_aw1u5")
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chunks_x = 5
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chunks_y = 5
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player_spawn_height = 1.1
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[node name="WorldEnvironment" type="WorldEnvironment" parent="."]
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[node name="WorldEnvironment" type="WorldEnvironment" parent="." unique_id=1826007557]
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environment = SubResource("Env1")
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[node name="DirectionalLight3D" type="DirectionalLight3D" parent="."]
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[node name="DirectionalLight3D" type="DirectionalLight3D" parent="." unique_id=332057448]
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transform = Transform3D(0.707107, -0.5, 0.5, 0, 0.707107, 0.707107, -0.707107, -0.5, 0.5, 0, 10, 0)
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light_color = Color(1, 0.95, 0.85, 1)
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light_energy = 0.9
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shadow_enabled = true
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[node name="Levels" type="Node3D" parent="."]
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[node name="Levels" type="Node3D" parent="." unique_id=933491194]
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[node name="Player" type="CharacterBody3D" parent="."]
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[node name="Player" type="CharacterBody3D" parent="." unique_id=1414808402]
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transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 39, 1.1, 14)
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script = ExtResource("2_player")
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[node name="CollisionShape3D" type="CollisionShape3D" parent="Player"]
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[node name="CollisionShape3D" type="CollisionShape3D" parent="Player" unique_id=587919818]
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transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.85, 0)
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shape = SubResource("Capsule1")
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[node name="Camera3D" type="Camera3D" parent="Player"]
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[node name="Camera3D" type="Camera3D" parent="Player" unique_id=680522156]
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transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.5, 0)
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current = true
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near = 0.05
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far = 2000.0
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[node name="FPSOverlay" type="CanvasLayer" parent="."]
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script = ExtResource("3_fpsov")
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[node name="FPSOverlay" type="CanvasLayer" parent="." unique_id=315989227]
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script = SubResource("GDScript_5guhk")
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[node name="Label" type="Label" parent="FPSOverlay"]
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[node name="Label" type="Label" parent="FPSOverlay" unique_id=1568814951]
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offset_left = 12.0
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offset_top = 12.0
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offset_right = 1000.0
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