feat: add Godot basic visualizer (#72)

godot-visualizer/.gitattributes

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+# Normalize EOL for all files that Git considers text files.
+* text=auto eol=lf

godot-visualizer/.gitignore

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+# Godot 4+ specific ignores
+.godot/
+/android/
+build/

godot-visualizer/camera.gd

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+extends Camera2D
+
+var is_mouse_pressed
+var curr_mouse_position
+var prev_mouse_position
+var next_camera_position = null
+var prev_camera_position = position
+
+var mouse_pressed_timer = Timer.new()
+const mouse_pressed_threshold: float = 0.2
+const camera_drag: float = 0.05
+
+
+func _ready():
+	mouse_pressed_timer.one_shot = true
+	add_child(mouse_pressed_timer)
+
+	prev_mouse_position = get_viewport().get_mouse_position()
+
+func _process(delta):
+	curr_mouse_position = get_viewport().get_mouse_position()
+	if is_mouse_pressed:
+		next_camera_position = position - (curr_mouse_position - prev_mouse_position) / zoom
+	elif next_camera_position: position = position + (next_camera_position - position) * camera_drag
+	prev_mouse_position = curr_mouse_position
+
+func _input(event):
+	if event is InputEventMouseButton:
+		is_mouse_pressed = event.pressed
+		if is_mouse_pressed:
+			if mouse_pressed_timer.is_stopped():
+				mouse_pressed_timer.start(mouse_pressed_threshold)
+		else:
+			if !mouse_pressed_timer.is_stopped():
+				mouse_pressed_timer.stop()
+	elif event is InputEventMouseMotion:
+		if is_mouse_pressed:
+			if mouse_pressed_timer.is_stopped():
+				prev_camera_position -= event.relative / zoom
+				position = prev_camera_position
+		else:
+			prev_camera_position = position

godot-visualizer/export_presets.cfg

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+[preset.0]
+
+name="Web"
+platform="Web"
+runnable=true
+advanced_options=false
+dedicated_server=false
+custom_features=""
+export_filter="all_resources"
+include_filter=""
+exclude_filter=""
+export_path="build/visualizer.html"
+encryption_include_filters=""
+encryption_exclude_filters=""
+encrypt_pck=false
+encrypt_directory=false
+script_export_mode=2
+
+[preset.0.options]
+
+custom_template/debug=""
+custom_template/release=""
+variant/extensions_support=false
+variant/thread_support=false
+vram_texture_compression/for_desktop=true
+vram_texture_compression/for_mobile=false
+html/export_icon=true
+html/custom_html_shell=""
+html/head_include=""
+html/canvas_resize_policy=2
+html/focus_canvas_on_start=true
+html/experimental_virtual_keyboard=false
+progressive_web_app/enabled=false
+progressive_web_app/ensure_cross_origin_isolation_headers=true
+progressive_web_app/offline_page=""
+progressive_web_app/display=1
+progressive_web_app/orientation=0
+progressive_web_app/icon_144x144=""
+progressive_web_app/icon_180x180=""
+progressive_web_app/icon_512x512=""
+progressive_web_app/background_color=Color(0, 0, 0, 1)

godot-visualizer/fuel.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://c8va8sqjmb80f"
+path="res://.godot/imported/fuel.svg-29fac8b52e8845235da2498e00ec672a.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://fuel.svg"
+dest_files=["res://.godot/imported/fuel.svg-29fac8b52e8845235da2498e00ec672a.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

godot-visualizer/fuel.tscn

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+[gd_scene load_steps=2 format=3 uid="uid://q0rcij55u7bg"]
+
+[ext_resource type="Texture2D" uid="uid://c8va8sqjmb80f" path="res://fuel.svg" id="1_tg1ui"]
+
+[node name="Fuel" type="Node2D"]
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+texture = ExtResource("1_tg1ui")

godot-visualizer/icon.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://mgknilsnf8no"
+path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.svg"
+dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false