mirror of
https://github.com/godotengine/godot-demo-projects.git
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141 lines
4.3 KiB
GDScript
141 lines
4.3 KiB
GDScript
extends Test
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const OPTION_JOINT_TYPE = "Joint Type/%s Joint (%d)"
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const OPTION_TEST_CASE_BODIES_COLLIDE = "Test case/Attached bodies collide"
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const OPTION_TEST_CASE_WORLD_ATTACHMENT = "Test case/No parent body"
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const OPTION_TEST_CASE_DYNAMIC_ATTACHMENT = "Test case/Parent body is dynamic (no gravity)"
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const OPTION_TEST_CASE_DESTROY_BODY = "Test case/Destroy attached body"
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const OPTION_TEST_CASE_CHANGE_POSITIONS = "Test case/Set body positions after added to scene"
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const BOX_SIZE = Vector2(64, 64)
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var _update_joint: bool = false
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var _selected_joint: Joint2D = null
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var _bodies_collide: bool = false
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var _world_attachement: bool = false
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var _dynamic_attachement: bool = false
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var _destroy_body: bool = false
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var _change_positions: bool = false
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var _joint_types: Dictionary[String, Joint2D] = {}
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func _ready() -> void:
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var options: OptionMenu = $Options
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var joints: Node2D = $Joints
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for joint_index in joints.get_child_count():
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var joint_node: Joint2D = joints.get_child(joint_index)
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joint_node.visible = false
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var joint_name := String(joint_node.name)
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var joint_short: String = joint_name.substr(0, joint_name.length() - 7)
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var option_name: String = OPTION_JOINT_TYPE % [joint_short, joint_index + 1]
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options.add_menu_item(option_name)
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_joint_types[option_name] = joint_node
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options.add_menu_item(OPTION_TEST_CASE_BODIES_COLLIDE, true, false)
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options.add_menu_item(OPTION_TEST_CASE_WORLD_ATTACHMENT, true, false)
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options.add_menu_item(OPTION_TEST_CASE_DYNAMIC_ATTACHMENT, true, false)
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options.add_menu_item(OPTION_TEST_CASE_DESTROY_BODY, true, false)
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options.add_menu_item(OPTION_TEST_CASE_CHANGE_POSITIONS, true, false)
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options.option_selected.connect(_on_option_selected)
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options.option_changed.connect(_on_option_changed)
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_selected_joint = _joint_types.values()[0]
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_update_joint = true
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func _process(_delta: float) -> void:
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if _update_joint:
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_update_joint = false
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await _create_joint()
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$LabelJointType.text = "Joint Type: " + String(_selected_joint.name)
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func _input(input_event: InputEvent) -> void:
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if input_event is InputEventKey and not input_event.pressed:
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var joint_index: int = input_event.keycode - KEY_1
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if joint_index >= 0 and joint_index < _joint_types.size():
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_selected_joint = _joint_types.values()[joint_index]
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_update_joint = true
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func _on_option_selected(option: String) -> void:
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if _joint_types.has(option):
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_selected_joint = _joint_types[option]
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_update_joint = true
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func _on_option_changed(option: String, checked: bool) -> void:
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match option:
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OPTION_TEST_CASE_BODIES_COLLIDE:
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_bodies_collide = checked
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_update_joint = true
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OPTION_TEST_CASE_WORLD_ATTACHMENT:
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_world_attachement = checked
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_update_joint = true
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OPTION_TEST_CASE_DYNAMIC_ATTACHMENT:
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_dynamic_attachement = checked
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_update_joint = true
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OPTION_TEST_CASE_DESTROY_BODY:
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_destroy_body = checked
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_update_joint = true
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OPTION_TEST_CASE_CHANGE_POSITIONS:
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_change_positions = checked
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_update_joint = true
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func _create_joint() -> void:
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cancel_timer()
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var root: Node2D = $Objects
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while root.get_child_count():
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var last_child_index := root.get_child_count() - 1
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var last_child := root.get_child(last_child_index)
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root.remove_child(last_child)
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last_child.queue_free()
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var child_body := create_rigidbody_box(BOX_SIZE, true, true)
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if _change_positions:
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root.add_child(child_body)
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child_body.position = Vector2(0.0, 40)
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else:
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child_body.position = Vector2(0.0, 40)
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root.add_child(child_body)
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var parent_body: PhysicsBody2D = null
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if not _world_attachement:
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parent_body = create_rigidbody_box(BOX_SIZE, true, true)
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if _dynamic_attachement:
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parent_body.gravity_scale = 0.0
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child_body.gravity_scale = 0.0
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else:
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parent_body.freeze_mode = RigidBody2D.FREEZE_MODE_KINEMATIC
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parent_body.freeze = true
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if _change_positions:
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root.add_child(parent_body)
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parent_body.position = Vector2(0.0, -40)
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else:
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parent_body.position = Vector2(0.0, -40)
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root.add_child(parent_body)
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var joint := _selected_joint.duplicate()
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joint.visible = true
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joint.disable_collision = not _bodies_collide
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root.add_child(joint)
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if parent_body:
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joint.set_node_a(joint.get_path_to(parent_body))
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joint.set_node_b(joint.get_path_to(child_body))
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if _destroy_body:
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await start_timer(0.5).timeout
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if is_timer_canceled():
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return
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child_body.queue_free()
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