Release 0.2.0: device-aware controls, spear, settings, shaders

Show touch controls only on touch platforms and keyboard hints only on
desktop, via a shared Controls.use_touch_ui() gate (is_touchscreen_available
is unreliable with emulate_touch_from_mouse). Bumps version to 0.2.0.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

controls_manager.gd

@@ -15,8 +15,8 @@ const REBINDABLE_ACTIONS: PackedStringArray = [
 	&"move_left",
 	&"move_right",
 	&"ability_kick",
-	&"ability_slam",
 	&"ability_dash",
+	&"ability_slam",
 	&"ability_roll",
 ]
 
@@ -25,6 +25,21 @@ func _ready() -> void:
 	load_saved()
 
 
+## Whether to drive the game with the on-screen touch UI (joystick + buttons)
+## instead of keyboard hints. DisplayServer.is_touchscreen_available() can't be
+## used here: `emulate_touch_from_mouse` (on for desktop testing) makes it report
+## true on every desktop. Gate on the actual runtime platform instead — real
+## mobile/native and mobile web browsers — plus the DP force flag for testing.
+func use_touch_ui() -> bool:
+	if DP.b("force_touch_controls"):
+		return true
+	return (
+		OS.has_feature("mobile")
+		or OS.has_feature("web_android")
+		or OS.has_feature("web_ios")
+	)
+
+
 ## Returns the first keyboard event bound to an action, or null.
 func get_key_event(action: StringName) -> InputEventKey:
 	for event: InputEvent in InputMap.action_get_events(action):