player/player.gd

   1 extends KinematicBody
   2
   3 const SPEED_FORWARD = 20
   4 const SPEED_MAX = 20
   5 const SPEED_TURN = 120
   6 const SPEED_AIM = PI / 2
   7
   8 var velocity = Vector3()
   9 var scene_bullet = preload("res://player/bullet.tscn")
  10
  11 # Called when the node enters the scene tree for the first time.
  12 func _ready():
  13         pass # Replace with function body.
  14
  15 func get_player_input(delta):
  16         var vec_lateral = transform.basis.x
  17         var vec_vertical = transform.basis.y
  18
  19
  20         if Input.is_action_pressed("player_left"):
  21                 velocity += SPEED_TURN * -vec_lateral * delta
  22         elif Input.is_action_pressed("player_right"):
  23                 velocity += SPEED_TURN * vec_lateral * delta
  24
  25         if Input.is_action_pressed("player_up"):
  26                 velocity += SPEED_TURN * vec_vertical * delta
  27         elif Input.is_action_pressed("player_down"):
  28                 velocity += SPEED_TURN * -vec_vertical * delta
  29
  30         if Input.is_action_pressed("player_aim_up"):
  31                 rotate_object_local(Vector3.RIGHT, SPEED_AIM * delta)
  32         elif Input.is_action_pressed("player_aim_down"):
  33                 rotate_object_local(Vector3.RIGHT, -SPEED_AIM * delta)
  34
  35         if Input.is_action_pressed("player_aim_left"):
  36                 rotate(Vector3.UP, SPEED_AIM * delta)
  37         elif Input.is_action_pressed("player_aim_right"):
  38                 rotate(Vector3.UP, -SPEED_AIM * delta)
  39
  40         # offense
  41         if Input.is_action_pressed("player_fire"):
  42                 print("firing!")
  43                 fire_bullet()
  44
  45 func fire_bullet():
  46         var bullet = scene_bullet.instance()
  47         $"..".add_child(bullet)
  48         bullet.translation = translation - transform.basis.x * 2
  49         bullet.rotation = rotation
  50         bullet.direction = -transform.basis.z
  51
  52 func _process(delta):
  53         # get velocity changes player asks for
  54         get_player_input(delta)
  55
  56         # move foward according to the camera's POV
  57         var vec_forward = transform.basis.z
  58         velocity += SPEED_FORWARD * -vec_forward * delta
  59
  60         # air friction
  61         var friction = SPEED_MAX / velocity.length()
  62         velocity *= friction
  63
  64 func _physics_process(_delta):
  65         velocity = move_and_slide(velocity, Vector3.UP)