player/player.gd

   1 extends CharacterBody3D
   2 class_name Player
   3
   4
   5 # player settings
   6 @export_group("Movement")
   7 @export var walk_speed := 3.0
   8 @export var jog_speed := 6.0
   9 @export var charge_speed := 20
  10
  11 @export var air_speed := 3.0
  12 @export var acceleration := 20.0
  13 @export var rotation_speed := 10.0
  14 @export var idle_timeout := 5.0
  15 @export var hard_landing_limit := 10.0
  16
  17 @export_group("Physics")
  18 @export var push_force := 10
  19
  20 @export_group("Camera")
  21 @export_range(1.0, 10.0) var camera_distance := 2.5
  22 @export_range(0.0, 1.0) var mouse_sensitivity := 0.15
  23 @export_range(0.0, 1.0) var mouse_sensitivity_x := 1.0
  24 @export_range(0.0, 1.0) var mouse_sensitivity_y := 0.5
  25 @export_range(0.0, 10.0) var joystick_sensitivity_x := 4.0
  26 @export_range(0.0, 10.0) var joystick_sensitivity_y := 2.0
  27
  28
  29 @onready var _debug: CanvasLayer = %debug
  30 @onready var _camera_pivot: Node3D = %camera_pivot
  31 @onready var _camera: Camera3D = %camera
  32 @onready var _skin: AnimatedSkin = %skin
  33
  34 var _last_movement_direction := rotation
  35 var _camera_input_direction := Vector2.ZERO
  36
  37 enum {CAMERA_MOUSE_INPUT, CAMERA_JOYSTICK_INPUT}
  38 var _camera_input_method := CAMERA_MOUSE_INPUT
  39
  40 var _idle_time: float = 0.0
  41 var _player_speed: float = walk_speed
  42
  43
  44 func _ready() -> void:
  45         $camera_pivot/SpringArm3D.spring_length = camera_distance
  46         _debug.draw.add_vector(self, "velocity", 1, 1, Color(0,1,0,1))
  47         _debug.draw.add_vector(self, "_last_movement_direction", 1, 1, Color(1,0,0,1))
  48         _debug.stats.add_property(self, "velocity", "length")
  49         _debug.stats.add_property(self, "_idle_time", "round")
  50
  51
  52 func _physics_process(delta: float) -> void:
  53         _process_camera(delta)
  54         _process_player(delta)
  55
  56
  57 func _unhandled_input(event: InputEvent) -> void:
  58         # If user clicks on the window, capture the mouse and direct the camera with it
  59         if Input.get_mouse_mode() != Input.MOUSE_MODE_CAPTURED:
  60                 return
  61
  62                         #_camera_input_direction *= mouse_sensitivity
  63         if event is InputEventMouseMotion:
  64                 _camera_input_method = CAMERA_MOUSE_INPUT
  65                 _camera_input_direction = event.screen_relative * mouse_sensitivity
  66         elif event is InputEventJoypadMotion:
  67                 _camera_input_method = CAMERA_JOYSTICK_INPUT
  68                 _camera_input_direction = Input.get_vector("camera-left", "camera-right", "camera-up", "camera-down")
  69                 _camera_input_direction *= Vector2(joystick_sensitivity_x, -joystick_sensitivity_y)
  70
  71
  72 func _input(event: InputEvent):
  73         if event.is_action_pressed("player_run"):
  74                 _player_speed = jog_speed
  75         elif event.is_action_released("player_run"):
  76                 _player_speed = walk_speed
  77
  78         if event.is_action_pressed("player_attack") and velocity.length() > jog_speed * .75:
  79                 _player_speed = charge_speed
  80
  81
  82 # Get the XZ input direction based on player's input relative to the camera
  83 func _get_player_move_direction() -> Vector3:
  84         var input_dir := Input.get_vector("player_left", "player_right", "player_forward", "player_backward")
  85         var forward := _camera.global_basis.z
  86         var right := _camera.global_basis.x
  87         var move_direction := (forward * input_dir.y + right * input_dir.x).normalized()
  88         move_direction.y = 0
  89         return move_direction
  90
  91
  92 func _process_camera(delta: float) -> void:
  93         # vertical camera rotation
  94         _camera_pivot.rotation.x += _camera_input_direction.y * mouse_sensitivity_y * delta
  95         _camera_pivot.rotation.x = clamp(_camera_pivot.rotation.x, -PI / 6, PI / 3)
  96
  97         # horizontal camera rotation
  98         _camera_pivot.rotation.y -= _camera_input_direction.x * mouse_sensitivity_x * delta
  99
 100         # reset mouse movement vector if mouse input
 101         if _camera_input_method == CAMERA_MOUSE_INPUT:
 102                 _camera_input_direction = Vector2.ZERO
 103
 104
 105 func _process_player_on_floor(delta: float):
 106         var move_direction := _get_player_move_direction()
 107
 108         # if we're not stuck, then it's okay to set the velocity
 109         var floor_normal := move_direction.angle_to(get_floor_normal() * Vector3(1, 0, 1)) + 1
 110         velocity = velocity.move_toward(move_direction * (_player_speed + 1 / floor_normal * 20), acceleration * delta)
 111         var movement_speed := Vector3(velocity.x, 0, velocity.z).length()
 112
 113         # also, if we're moving, we're not idle
 114         if move_direction.length() < 0.2:
 115                 if velocity == Vector3.ZERO:
 116                         _idle_time += delta
 117         else:
 118                 _last_movement_direction = move_direction
 119                 _idle_time = 0.0
 120
 121         # if camera is unlocked, rotate whole skin to face movement direction
 122         # else, rotate to face camera pivot global Y direction
 123         var skin_target_angle := Vector3.BACK.signed_angle_to(_last_movement_direction, Vector3.UP)
 124         _skin.global_rotation.y = lerp_angle(
 125                 _skin.global_rotation.y,
 126                 skin_target_angle,
 127                 rotation_speed * delta
 128                 )
 129         _skin.set_grounded_speed(movement_speed)
 130
 131         # timescale tweaking for fun effect!
 132         if movement_speed >= charge_speed * 0.75:
 133                 _skin.set_timescale(2.0)
 134
 135                 # ignore objects when I'm going fast!
 136                 set_collision_mask_value(3, false)
 137         else:
 138                 _skin.set_timescale(1.0)
 139                 set_collision_mask_value(3, true)
 140
 141
 142 func _process_player(delta: float) -> void:
 143         if is_on_floor():
 144                 _skin.set_grounded()
 145                 _process_player_on_floor(delta)
 146         else:
 147                 _skin.set_falling()
 148                 velocity += get_gravity() * air_speed * delta
 149
 150         # now actually move!
 151         var movement_speed := velocity.length()
 152         move_and_slide()
 153
 154         # handle collisions
 155         for i in get_slide_collision_count():
 156                 var c := get_slide_collision(i)
 157                 if c.get_collider() is RigidBody3D:
 158                         var col: RigidBody3D = c.get_collider()
 159                         col.apply_central_impulse(-c.get_normal() * push_force * movement_speed / col.mass)