69 lines
1.9 KiB
GDScript
69 lines
1.9 KiB
GDScript
# taken from
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# https://github.com/tavurth/godot-simple-fps-camera/blob/master/player/Camera.gd
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#
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extends Camera3D
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@onready var Player = get_parent()
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## Increase this value to give a slower turn speed
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const CAMERA_TURN_SPEED = 400
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func _ready():
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## Tell Godot that we want to handle input
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set_process_input(true)
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func look_updown_rotation(new_rotation = 0):
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"""
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Returns a new Vector3 which contains only the x direction
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We'll use this vector to compute the final 3D rotation later
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"""
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var toReturn = self.get_rotation() + Vector3(new_rotation, 0, 0)
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##
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## We don't want the player to be able to bend over backwards
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## neither to be able to look under their arse.
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## Here we'll clamp the vertical look to 90° up and down
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toReturn.x = clamp(toReturn.x, PI / -2, PI / 2)
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return toReturn
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func look_leftright_rotation(new_rotation = 0):
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"""
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Returns a new Vector3 which contains only the y direction
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We'll use this vector to compute the final 3D rotation later
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"""
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return Player.get_rotation() + Vector3(0, new_rotation, 0)
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func _input(event):
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"""
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First person camera controls
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"""
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##
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## We'll only process mouse motion events
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if not event is InputEventMouseMotion:
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return
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##
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## We'll use the parent node "Player" to set our left-right rotation
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## This prevents us from adding the x-rotation to the y-rotation
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## which would result in a kind of flight-simulator camera
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Player.set_rotation(look_leftright_rotation(event.relative.x / -CAMERA_TURN_SPEED))
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##
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## Now we can simply set our y-rotation for the camera, and let godot
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## handle the transformation of both together
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self.set_rotation(look_updown_rotation(event.relative.y / -CAMERA_TURN_SPEED))
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func _enter_tree():
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"""
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Hide the mouse when we start
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"""
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Input.set_mouse_mode(Input.MOUSE_MODE_HIDDEN)
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Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
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func _leave_tree():
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"""
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Show the mouse when we leave
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"""
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Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)
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