update

player/camera.gd

@@ -0,0 +1,30 @@
+extends Node3D
+
+const SENSITIVITY := 0.003
+const PITCH_MIN := -80.0
+const PITCH_MAX := 80.0
+
+var pitch := -0.3
+var camera_yaw := 0.0
+var player_yaw := -2.356
+
+func _ready() -> void:
+  get_parent().rotation.y = player_yaw
+  rotation = Vector3(pitch, camera_yaw, 0)
+
+func _unhandled_input(event: InputEvent) -> void:
+  if event is InputEventMouseMotion:
+    var lmb := Input.is_mouse_button_pressed(MOUSE_BUTTON_LEFT)
+    var rmb := Input.is_mouse_button_pressed(MOUSE_BUTTON_RIGHT)
+
+    if lmb or rmb:
+      pitch -= event.relative.y * SENSITIVITY
+      pitch = clamp(pitch, deg_to_rad(PITCH_MIN), deg_to_rad(PITCH_MAX))
+
+      if rmb:
+        player_yaw -= event.relative.x * SENSITIVITY
+        get_parent().rotation.y = player_yaw
+      else:
+        camera_yaw -= event.relative.x * SENSITIVITY
+
+      rotation = Vector3(pitch, camera_yaw, 0)