player/moves/walk.gd

   1 extends Move
   2 class_name Walk
   3
   4
   5 const skin_lean_limit := PI/4
   6
   7
   8 func update(input: InputPacket, delta: float):
   9         player.velocity = get_new_velocity_from_input(input, delta, player.walk_speed)
  10         player.move_and_slide()
  11         update_skin(delta)
  12
  13
  14 func on_enter_state():
  15         player.skin.transition_move()
  16
  17
  18 func update_skin(delta: float):
  19         # update skin rotation
  20         var skin_target_angle := Vector3.BACK.signed_angle_to(
  21                 player.last_movement_direction,
  22                 Vector3.UP
  23                 )
  24         player.skin.global_rotation.y = lerp_angle(
  25                 player.skin.global_rotation.y,
  26                 skin_target_angle,
  27                 player.rotation_speed * delta
  28         )
  29
  30         # lean into player momentum just a little bit
  31         player.skin.rotation.z = lerp_angle(
  32                 player.skin.rotation.z,
  33                 clamp(
  34                         player.last_movement_direction.signed_angle_to(
  35                                 player.velocity, Vector3.UP
  36                                 ) * player.velocity.length() * 0.08,
  37                         -skin_lean_limit, skin_lean_limit
  38                         ),
  39                 player.rotation_speed * delta * 0.25
  40                 )
  41
  42         player.skin.set_walking_speed(player.velocity.length())
  43
  44
  45 func get_new_velocity_from_input(input: InputPacket, delta: float, speed: float) -> Vector3:
  46         # Get the XZ input direction based on player's input relative to the camera
  47         var forward := camera.global_basis.z
  48         var right := camera.global_basis.x
  49         var movement_direction := (
  50                 forward * input.movement_direction.y + right * input.movement_direction.x
  51                 ).normalized()
  52         movement_direction.y = 0
  53
  54         # save off last movement direction
  55         if movement_direction.length() > 0.2:
  56                 player.last_movement_direction = movement_direction
  57
  58         # if we're not stuck, then it's okay to set the velocity
  59         player.floor_normal = player.get_floor_normal()
  60         player.ground_slope_input = (PI / 2) - player.velocity.angle_to(player.floor_normal)
  61         var new_velocity = player.velocity.move_toward(
  62                 movement_direction * (speed + player.ground_slope_input * speed),
  63                 player.acceleration * delta
  64                 )
  65
  66         return new_velocity