102 lines
2.8 KiB
GDScript3
102 lines
2.8 KiB
GDScript3
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class_name SpinGlideAbility extends RunnerAbility
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const PUNT_ACCELERATION: float = 30.0
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const DROP_KICK_FACTOR: float = 3.0
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const KNOCKBACK_ATTENUATION: float = 0.125
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@export var animation_in_water: StringName
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@export var timeout: float = 1.0
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@export var drop_factor: float = 1.0
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var saved_gravity_scale: float
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var ending: bool
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var timer: float
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var in_water: bool
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func begin(runner: Runner) -> void:
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saved_gravity_scale = runner.gravity_scale
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runner.gravity_scale = 0.01
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runner.linear_velocity = runner.linear_velocity.slide(runner.up_normal)
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ending = false
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timer = timeout
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in_water = false
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func integrate_forces(
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runner: Runner,
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body_state: PhysicsDirectBodyState3D
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) -> void:
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if (
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in_water or body_state.total_gravity.dot(Vector3.UP) > 0.0
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) and not ending:
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in_water = true
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if runner.animation_player.current_animation != animation_in_water:
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runner.animation_player.play(animation_in_water)
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body_state.linear_velocity += drop_factor*runner.basis.z/2.0
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body_state.linear_velocity -= (
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runner.up_normal *
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(runner.impetus*runner.basis).z *
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runner.run_acceleration *
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body_state.step
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)
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timer -= body_state.step
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if timer <= 0.0 or (
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body_state.total_gravity.dot(Vector3.UP) < 0.0
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):
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on_repeated_input(runner)
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elif not runner.wall_normal.is_zero_approx():
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runner.change_state(&'wall_slide')
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elif ending:
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if not runner.floor_normal.is_zero_approx():
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runner.audio_player.stream = runner.land_sound
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runner.audio_player.play()
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runner.change_state(&'run')
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else:
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timer -= body_state.step
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if timer <= 0.0:
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on_repeated_input(runner)
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for i in body_state.get_contact_count():
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var other := body_state.get_contact_collider_object(i)
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if other is Runner:
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var rother := other as Runner
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rother.knockback(
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runner.global_position,
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runner.mass*PUNT_ACCELERATION*(
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DROP_KICK_FACTOR if ending else 1.0
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)*KNOCKBACK_ATTENUATION
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)
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elif other is RigidBody3D:
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var rother := other as RigidBody3D
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rother.apply_force(
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runner.mass*(
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runner.impetus + runner.up_normal
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).normalized()*PUNT_ACCELERATION*(
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DROP_KICK_FACTOR if ending else 1.0
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),
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body_state.get_contact_collider_position(i) -
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rother.global_position
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)
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func orientation(runner: Runner) -> Vector3:
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if in_water:
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return runner.linear_velocity
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else:
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return runner.basis.z
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func animation_speed(runner: Runner) -> float:
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return 1.0 + runner.linear_velocity.length()/20.0
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func end(runner: Runner) -> void:
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runner.gravity_scale = saved_gravity_scale
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func on_repeated_input(runner: Runner) -> void:
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if in_water:
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runner.change_state(&'swim')
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elif not ending:
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runner.audio_player.stream = runner.jump_sound
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runner.audio_player.play()
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runner.gravity_scale = saved_gravity_scale
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runner.linear_velocity -= (
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drop_factor*runner.top_run_speed*runner.up_normal
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)
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ending = true
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