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extends CharacterBody3D
const SPEED = 5.0
const RUN_SPEED = 1.5 * SPEED
const JUMP_VELOCITY = 4.5
const THROW_FORCE = 10.0
const RUN_CONSUMPTION = 20.0
const STAM_REGEN = 10.0
#@export_node_path("ProgressBar") var stam_bar_path = null
@export var stam_bar: ProgressBar = null;
@export var seed_text: RichTextLabel = null;
var stamina: float = 100
var num_seeds: int = 0
# Get the gravity from the project settings to be synced with RigidBody nodes.
var gravity = ProjectSettings.get_setting("physics/3d/default_gravity")
var current_node: Node3D = null
var holding: Node3D = null
var climbing: bool = false
var last_wall_direction: Vector3 = Vector3()
var inital_camera_offset: Vector3 = Vector3()
var camera_rotation: float = 0
func got_body(body: Node3D):
if current_node == null:
print("Got body ", body)
current_node = body
func leave_body(body: Node3D):
if current_node == body:
current_node = null
func pickup():
if current_node.collision_layer & 0b1000:
num_seeds += 1
var node = current_node
node.get_parent().remove_child(node)
node.queue_free()
elif holding == null:
holding = current_node
current_node.get_parent().remove_child(current_node)
holding.position = Vector3.ZERO
holding.freeze = true
$Holder.add_child(holding)
func get_camera_fwd() -> Vector3:
var fwd: Vector3 = -Vector3(sin(camera_rotation), 0, cos(camera_rotation))
return fwd
func get_camera_right() -> Vector3:
var right: Vector3 = Vector3(cos(camera_rotation), 0, -sin(camera_rotation))
return right
func throw():
var g_pos = holding.global_position
holding.get_parent().remove_child(holding)
get_parent().add_child(holding)
holding.global_position = g_pos
var fwd = get_camera_fwd()
var right = get_camera_right()
var dir = (fwd + right).normalized()
holding.freeze = false
holding.apply_impulse(THROW_FORCE*dir)
holding = null
func _ready():
assert(stam_bar != null, "Stamina bar is null")
assert(seed_text != null, "Seed text is null")
Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
$Picker.connect("body_entered", got_body)
$Picker.connect("body_exited", leave_body)
inital_camera_offset = $Camera3D.global_position - global_position
func _process(delta: float):
stam_bar.value = stamina
seed_text.text = str(num_seeds)
turn_camera(delta)
func turn_camera(delta: float):
var turn_amt = Input.get_axis("turn_right", "turn_left")
camera_rotation += turn_amt * delta
func _physics_process(delta):
var speed = SPEED
var stam_consumption = 0
if Input.is_action_pressed("run") and stamina > 0:
speed = RUN_SPEED
stam_consumption += RUN_CONSUMPTION
if Input.is_action_just_pressed("pickup"):
if holding == null and current_node != null:
pickup()
elif holding != null:
throw()
# Add the gravity.
if not is_on_floor() and not climbing:
velocity.y -= gravity * delta
var fwd = get_camera_fwd()
var right = get_camera_right()
var valid_climb = false
if is_on_wall():
for col in get_slide_collision_count():
var col_obj = get_slide_collision(col)
#print("Collider layer is ", col_obj.get_collider().collision_layer, " ", col_obj.get_collider())
if col_obj.get_collider().collision_layer & 0b100:
valid_climb = true
if valid_climb and stamina > 0:
last_wall_direction = get_wall_normal()
climbing = true
elif climbing:
climbing = false
var climb_direction_fwd = Vector3()
var climb_direction_right = Vector3()
if climbing:
climb_direction_fwd = (Vector3.UP - Vector3.UP.project(last_wall_direction)).normalized()
# TODO
# This should not be relative to the camera, climbing should be fixed, I think I might need
# to take a cross product here to do that with the wall normal and the fwd/up direction on the wall
climb_direction_right = (right - right.project(last_wall_direction)).normalized()
# Handle Jump.
if Input.is_action_just_pressed("ui_accept") and is_on_floor():
velocity.y = JUMP_VELOCITY
# Make sure player is looking in the forward direction
# TODO player should only start looking at the fwd direction when they start moving
look_at(global_position + fwd)
# Get the input direction and handle the movement/deceleration.
# As good practice, you should replace UI actions with custom gameplay actions.
var input_dir = Input.get_vector("left", "right", "backward", "forward")
var direction = (input_dir.y * fwd + input_dir.x * right).normalized()
var climb_direction: Vector3 = (input_dir.y * climb_direction_fwd + input_dir.x * climb_direction_right).normalized()
if climbing:
velocity = climb_direction * speed
# TODO there should be some way to force the player to be locked to the wall without
# just pushing into the wall slightly.
velocity += -speed * last_wall_direction
if input_dir.length_squared() > 0:
stam_consumption += RUN_CONSUMPTION
# Force player to look toward wall
look_at(global_position - last_wall_direction)
# Set camera rotation so it continues to face the wall
# TODO player should still be able to move the camera, this should probably just nudge the camera to this
# position while climbing and not controling the camera
camera_rotation = Vector2(last_wall_direction.x, last_wall_direction.z).angle_to(Vector2(inital_camera_offset.x, inital_camera_offset.z))
elif direction:
velocity.x = direction.x * speed
velocity.z = direction.z * speed
else:
velocity.x = move_toward(velocity.x, 0, speed)
velocity.z = move_toward(velocity.z, 0, speed)
move_and_slide()
# Position camera
$Camera3D.global_position = global_position + inital_camera_offset.rotated(Vector3.UP, camera_rotation)
$Camera3D.look_at(global_position)
if stam_consumption == 0 and not Input.is_action_pressed("run") and is_on_floor():
stam_consumption = -STAM_REGEN
stamina = clamp(stamina - stam_consumption * delta, 0, 100)
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