Code：2023/05/30

code:Player

extends CharacterBody2D

@export var movement_data : PlayerMovementData

var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")

@onready var animated_sprite_2d = $AnimatedSprite2D

@onready var coyote_jump_timer = $CoyoteJumpTimer

func _physics_process(delta):

apply_gravity(delta)

handle_jump()

var input_axis = Input.get_axis("ui_left", "ui_right")

handle_acceleration(input_axis, delta )

handle_air_acceleration(input_axis, delta)

apply_friction(input_axis, delta)

apply_air_resistance(input_axis, delta)

update_animations(input_axis)

var was_on_floor = is_on_floor()

move_and_slide()

var just_left_ledge = was_on_floor and not is_on_floor() and velocity.y >= 0

if just_left_ledge:

coyote_jump_timer.start()

func apply_gravity(delta):

if not is_on_floor():

velocity.y += gravity * movement_data.gravity_scale * delta

func handle_jump():

if is_on_floor() or coyote_jump_timer.time_left > 0.0:

if Input.is_action_just_pressed("ui_up"):

velocity.y = movement_data.jump_velocity

if not is_on_floor():

if Input.is_action_just_released("ui_up") and velocity.y < movement_data.jump_velocity / 2:

velocity.y = movement_data.jump_velocity / 2

func handle_acceleration(input_axis, delta):

if not is_on_floor(): return

if input_axis != 0:

velocity.x = move_toward(velocity.x, movement_data.speed * input_axis, movement_data.acceleration * delta)

func handle_air_acceleration(input_axis, delta):

if is_on_floor(): return

if input_axis != 0:

velocity.x = move_toward(velocity.x, movement_data.speed * input_axis, movement_data.air_acceleration * delta)

func apply_friction(input_axis, delta):

if input_axis == 0 and is_on_floor():

velocity.x = move_toward(velocity.x, 0, movement_data.friction * delta)

func apply_air_resistance(input_axis, delta):

if input_axis == 0 and not is_on_floor():

velocity.x = move_toward(velocity.x, 0, movement_data.air_resistance * delta)

func update_animations(input_axis):

if input_axis != 0:

animated_sprite_2d.flip_h = (input_axis < 0)

animated_sprite_2d.play("run")

else:

animated_sprite_2d.play("idle")

if not is_on_floor():

animated_sprite_2d.play("jump")