119 lines
3.4 KiB
GDScript
119 lines
3.4 KiB
GDScript
extends Camera3D
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class_name TrainCamera
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enum CameraMode { FOLLOW, SIDE, TOP, COCKPIT, CINEMATIC }
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@export_group("Camera")
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@export var follow_distance: float = 18.0
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@export var follow_height: float = 7.0
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@export var smoothness: float = 4.0
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var train: Train
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var mode: CameraMode = CameraMode.FOLLOW
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var orbit_angle: float = 0.0
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var cinematic_angle: float = 0.0
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func _process(delta: float) -> void:
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if not train or not train.locomotive:
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return
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_handle_input(delta)
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match mode:
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CameraMode.FOLLOW:
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_update_follow(delta)
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CameraMode.SIDE:
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_update_side(delta)
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CameraMode.TOP:
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_update_top(delta)
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CameraMode.COCKPIT:
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_update_cockpit(delta)
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CameraMode.CINEMATIC:
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_update_cinematic(delta)
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func _handle_input(delta: float) -> void:
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if Input.is_action_just_pressed("ui_accept"):
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mode = ((mode + 1) % CameraMode.size()) as CameraMode
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orbit_angle = 0.0
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if Input.is_action_pressed("camera_left"):
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orbit_angle -= 2.0 * delta
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elif Input.is_action_pressed("camera_right"):
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orbit_angle += 2.0 * delta
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orbit_angle = clamp(orbit_angle, -PI/2.5, PI/2.5)
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func _update_follow(delta: float) -> void:
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var loco = train.locomotive
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var train_pos = loco.global_position
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var forward = -loco.global_transform.basis.z
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var right = loco.global_transform.basis.x
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var rotated = forward * cos(orbit_angle) + right * sin(orbit_angle)
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var target_pos = train_pos - rotated * follow_distance + Vector3.UP * follow_height
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var target_look = train_pos + Vector3.UP * 2.0
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global_position = global_position.lerp(target_pos, smoothness * delta)
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look_at(target_look, Vector3.UP)
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func _update_side(delta: float) -> void:
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var loco = train.locomotive
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var train_pos = loco.global_position
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var right = loco.global_transform.basis.x
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var side_dir = sign(orbit_angle) if abs(orbit_angle) > 0.1 else 1.0
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var target_pos = train_pos + right * 12.0 * side_dir + Vector3.UP * 4.0
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global_position = global_position.lerp(target_pos, smoothness * delta)
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look_at(train_pos + Vector3.UP * 1.5, Vector3.UP)
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func _update_top(delta: float) -> void:
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var train_pos = train.get_locomotive_position()
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var target_pos = train_pos + Vector3.UP * 35.0
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global_position = global_position.lerp(target_pos, smoothness * delta)
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look_at(train_pos, Vector3.FORWARD)
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func _update_cockpit(delta: float) -> void:
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var loco = train.locomotive
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# Offset: dentro la cabina
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var cockpit_pos = loco.global_position + loco.global_transform.basis * Vector3(0, 3.2, 1.5)
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var forward_point = loco.global_position - (-loco.global_transform.basis.z) * 40.0
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var look_offset = loco.global_transform.basis.x * orbit_angle * 15.0
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global_position = global_position.lerp(cockpit_pos, smoothness * 2.0 * delta)
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look_at(forward_point + look_offset + Vector3.UP * 1.0, Vector3.UP)
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func _update_cinematic(delta: float) -> void:
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var train_pos = train.get_locomotive_position()
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cinematic_angle += 0.25 * delta
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var offset = Vector3(
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cos(cinematic_angle) * 22.0,
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8.0 + sin(cinematic_angle * 0.5) * 4.0,
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sin(cinematic_angle) * 22.0
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)
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var target_pos = train_pos + offset
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global_position = global_position.lerp(target_pos, smoothness * 0.4 * delta)
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look_at(train_pos + Vector3.UP * 1.5, Vector3.UP)
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func get_mode_name() -> String:
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match mode:
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CameraMode.FOLLOW: return "Segue"
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CameraMode.SIDE: return "Laterale"
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CameraMode.TOP: return "Alto"
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CameraMode.COCKPIT: return "Prima persona"
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CameraMode.CINEMATIC: return "Cinematica"
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return "Sconosciuta"
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