jpmschweitzerandClaude Opus 4.6
3a02fd0d2a
10 gdUnit4 tests verifying camera behavior: SimBridge test mode connection, snapshot pipeline, player position extraction, camera anchor in _ready(), smoothing disable/re-enable cycle, camera tracking across frames, and player movement following. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
146 lines
4.4 KiB
GDScript
146 lines
4.4 KiB
GDScript
## Tests for camera anchor behavior — the camera must show the player's
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## position from the very first rendered frame, with no visible drift from (0,0).
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##
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## These tests verify the full pipeline: SimBridge → GameState → Camera2D.
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## The player starts at (10,10) in test mode, so the expected camera position
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## is (10,10) * TILE_SIZE = (320, 320).
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class_name TestCameraAnchor
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extends GdUnitTestSuite
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const EXPECTED_PLAYER_POS := Vector2(10, 10)
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const EXPECTED_CAMERA_POS := Vector2(320, 320) # 10 * 32, 10 * 32
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var _instance: Node = null
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func before_test() -> void:
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SimBridge.reset_test_state()
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GameState.current_tick = 0
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GameState.player_position = Vector2.ZERO
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GameState.visible_entities = []
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GameState.visible_tiles = []
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GameState.visible_positions = {}
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GameState.current_monologue = null
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GameState.current_dialogue = null
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func after_test() -> void:
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if _instance and is_instance_valid(_instance):
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_instance.queue_free()
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_instance = null
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# --- Pipeline precondition tests ---
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func test_simbridge_connected_in_test_mode() -> void:
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SimBridge.state = SimBridge.ConnectionState.DISCONNECTED
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SimBridge.connect_to_sim()
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assert_that(SimBridge.state).is_equal(SimBridge.ConnectionState.CONNECTED)
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func test_poll_snapshot_returns_data_when_connected() -> void:
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SimBridge.connect_to_sim()
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var snapshot: Variant = SimBridge.poll_snapshot()
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assert_that(snapshot).is_not_null()
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assert_that(snapshot is Dictionary).is_true()
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func test_snapshot_has_player_at_10_10() -> void:
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var snap := SimBridge._test_snapshot()
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var player_x: float = -1.0
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var player_y: float = -1.0
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for entity in snap.entities:
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if entity.kind.variant == "Player":
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player_x = entity.x
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player_y = entity.y
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break
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assert_that(player_x).is_equal(10.0)
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assert_that(player_y).is_equal(10.0)
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func test_apply_snapshot_sets_player_position() -> void:
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var snap := SimBridge._test_snapshot()
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GameState.apply_snapshot(snap)
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assert_that(GameState.player_position).is_equal(EXPECTED_PLAYER_POS)
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# --- Camera anchor after _ready() ---
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func test_camera_position_after_ready() -> void:
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var scene := load("res://scenes/main.tscn")
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_instance = scene.instantiate()
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auto_free(_instance)
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add_child(_instance)
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var camera: Camera2D = _instance.get_node("Camera2D")
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assert_that(camera.global_position).is_equal(EXPECTED_CAMERA_POS)
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func test_camera_anchored_flag_after_ready() -> void:
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var scene := load("res://scenes/main.tscn")
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_instance = scene.instantiate()
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auto_free(_instance)
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add_child(_instance)
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assert_that(_instance._camera_anchored).is_true()
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func test_camera_smoothing_off_after_ready() -> void:
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# Camera smoothing must be disabled during init to prevent lerp from (0,0).
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# If this test fails, the camera will visibly drift from origin to player.
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var scene := load("res://scenes/main.tscn")
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_instance = scene.instantiate()
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auto_free(_instance)
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add_child(_instance)
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var camera: Camera2D = _instance.get_node("Camera2D")
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assert_that(camera.position_smoothing_enabled).is_false()
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# --- Camera behavior across frames ---
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func test_camera_tracks_player_after_process() -> void:
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var scene := load("res://scenes/main.tscn")
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_instance = scene.instantiate()
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auto_free(_instance)
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add_child(_instance)
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# Simulate one game frame
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_instance._process(0.016)
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var camera: Camera2D = _instance.get_node("Camera2D")
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var expected := GameState.player_position * Constants.TILE_SIZE
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assert_that(camera.global_position).is_equal(expected)
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func test_camera_smoothing_reenabled_after_process() -> void:
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# After the first anchored frame, smoothing should be back on for gameplay.
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var scene := load("res://scenes/main.tscn")
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_instance = scene.instantiate()
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auto_free(_instance)
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add_child(_instance)
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_instance._process(0.016)
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var camera: Camera2D = _instance.get_node("Camera2D")
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assert_that(camera.position_smoothing_enabled).is_true()
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func test_camera_follows_player_movement() -> void:
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var scene := load("res://scenes/main.tscn")
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_instance = scene.instantiate()
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auto_free(_instance)
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add_child(_instance)
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var camera: Camera2D = _instance.get_node("Camera2D")
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var initial_pos := camera.global_position
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# Move player north via SimBridge test mode
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SimBridge._test_input_queue.append("MoveNorth")
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_instance._process(0.016)
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# Camera should have moved with the player
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assert_that(camera.global_position.y < initial_pos.y).is_true()
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assert_that(camera.global_position).is_equal(
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GameState.player_position * Constants.TILE_SIZE)
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