generated from krampus/template-godot4
Rob Kelly
52e70f8c14
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60 lines
1.5 KiB
GDScript
60 lines
1.5 KiB
GDScript
extends Node3D
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## Give the camera a little kick when the player falls, proportional to landing velocity
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@export var enabled := true
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@export var character: CharacterBody3D
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## Minimum landing speed before kick is applied, in m/s
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@export var min_landing_speed := 4.0
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## How far the camera gets pitched on kick in degrees per m/s of landing velocity
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@export var angle_curve: Curve
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## How far down the camera gets kicked in meters per m/s of landing velocity
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@export var offset_curve: Curve
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## How long the rebound takes in seconds per m/s of landing velocity
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@export var rebound_time_curve: Curve
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var _last_speed := 0.0
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var _in_air := false
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var _tween: Tween
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func _get_tween() -> Tween:
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if _tween and _tween.is_valid():
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_tween.kill()
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_tween = create_tween()
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return _tween
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func do_kick(landing_speed: float) -> void:
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if landing_speed < min_landing_speed:
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return
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# Initial kick
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rotation.x = -deg_to_rad(angle_curve.sample(landing_speed))
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position.y = -offset_curve.sample(landing_speed)
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# Rebound
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var rebound_time := rebound_time_curve.sample(landing_speed)
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var tween := _get_tween()
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tween.set_parallel(true)
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tween.tween_property(self, "rotation:x", 0, rebound_time).set_trans(Tween.TRANS_CUBIC).set_ease(
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Tween.EASE_OUT
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)
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tween.tween_property(self, "position:y", 0, rebound_time).set_trans(Tween.TRANS_CUBIC).set_ease(
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Tween.EASE_OUT
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)
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func _process(_delta: float) -> void:
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if character.is_on_floor():
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if _in_air:
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# First frame after land
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do_kick(absf(_last_speed))
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_in_air = false
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else:
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_in_air = true
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_last_speed = character.velocity.y
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