【Godot】一个简单的平台角色控制，包括土狼时间、输入缓冲

Godot 3.4.2

一个简单的平台角色的控制，包括土狼时间，跳跃输入缓冲，请看文末中的推荐阅读的文章

调用其 move 和 jump 进行控制。

KinematicBody2D 版

#============================================================
#	Simple Platform Controller
#============================================================
# 简单的平台角色控制
# * 添加这个子节点到 KinematicBody2D 下即可使用
#============================================================
# @datetime: 2022-2-28 12:03:06
#============================================================
extends Node
class_name SimplePlatformController


## 在这个时间内按下跳跃，在落在地面上后自动进行跳跃
const BUFFER_TIME = 0.1
## 离开地面后，在这个时间内仍可以进行跳跃（土狼时间）
const GRACE_TIME = 0.2


export var move_speed = 300
export var jump_height = 800
export var gravity = 1500


var move_enabled : bool = true
var jump_enabled : bool = true
var motion_velocity := Vector2(0,0)


var __host__ : KinematicBody2D
var __jump_timer__ := Timer.new()
var __grace_timer__ := Timer.new()



#============================================================
#   内置
#============================================================
func _ready():
	__host__ = get_parent()
	
	__jump_timer__.wait_time = BUFFER_TIME
	__jump_timer__.one_shot = true
	__jump_timer__.connect("timeout", self, "set", ['__jump__', false])
	add_child(__jump_timer__)
	
	__grace_timer__.wait_time = GRACE_TIME
	__grace_timer__.one_shot = true
	add_child(__grace_timer__)


func _physics_process(delta):
	# 重力
	motion_velocity.y += gravity * delta
	# 碰到天花板
	if __host__.is_on_ceiling() and motion_velocity.y < 0:
		motion_velocity.y = 0
	# 开始跳跃
	if __jump_timer__.time_left > 0:
		if (__host__.is_on_floor() 
			or __grace_timer__.time_left > 0
		):
			motion_velocity.y = -jump_height
			__jump_timer__.stop()
			__grace_timer__.stop()
	else:
		# 土狼时间
		if __host__.is_on_floor():
			__grace_timer__.start(GRACE_TIME)
			motion_velocity.y = 0
	# 操控动
	__host__.move_and_slide(motion_velocity, Vector2.UP)
	
	motion_velocity.x = 0



#============================================================
#   自定义
#============================================================
##  移动 
## @dir  移动方向（-1 为左，1 为右）
func move(dir: float):
	if move_enabled:
		motion_velocity.x = dir * move_speed


##  跳跃
func jump():
	# Jump
	if jump_enabled:
		__jump_timer__.start()

RigidBody2D 版

#============================================================
#	Simple Platform Controller
#============================================================
# 简单的平台角色控制
# * 添加这个子节点到 RigidBody2D 下即可使用
#============================================================
# @datetime: 2022-2-28 12:03:06
#============================================================
class_name SimplePlatformController
extends Node


signal face_direction_changed(direction)


## 在这个时间内按下跳跃，在落在地面上后自动进行跳跃
const BUFFER_TIME = 0.1
## 离开地面后，在这个时间内仍可以进行跳跃（土狼时间）
const GRACE_TIME = 0.2


export var move_speed = 300
export var jump_height = 800
export var gravity = 1500


var move_enabled : bool = true
var jump_enabled : bool = true


onready var __host__ := get_parent() as RigidBody2D
onready var __delta__ : float = 1 / ProjectSettings.get("physics/common/physics_fps")


var __jump_timer__ := Timer.new()
var __grace_timer__ := Timer.new()
var __direction__ : Vector2 = Vector2.ZERO
var __jump_height__ : float = 0



#============================================================
#   Set/Get
#============================================================
func get_direction() -> Vector2:
	return __direction__



#============================================================
#   内置
#============================================================
func _ready():
	if Engine.editor_hint:
		set_physics_process(false)
	__jump_timer__.wait_time = BUFFER_TIME
	__jump_timer__.one_shot = true
	__jump_timer__.connect("timeout", self, "set", ['__jump__', false])
	add_child(__jump_timer__)
	
	__grace_timer__.wait_time = GRACE_TIME
	__grace_timer__.one_shot = true
	add_child(__grace_timer__)


func _physics_process(delta):
	# 开始跳跃
	if __jump_timer__.time_left > 0:
		if (__host__.is_on_floor() 
			or __grace_timer__.time_left > 0
		):
			__jump_timer__.stop()
			__grace_timer__.stop()
			__host__.linear_velocity.y = -__jump_height__
	else:
		# 土狼时间
		if __host__.is_on_floor():
			__grace_timer__.start(GRACE_TIME)



#============================================================
#   自定义
#============================================================
##  移动 
## @direction  移动方向（-1 为左，1 为右）
func move(direction: Vector2):
	if move_enabled:
		if __direction__.x != direction.x:
			__direction__.x = direction.x
			if __direction__.x != 0:
				emit_signal("face_direction_changed", __direction__)
		if __direction__.x != 0 and not __host__.is_on_wall():
			__host__.linear_velocity.x = __direction__.x * move_speed
		else:
			if __host__.linear_velocity.x != 0:
				__host__.linear_velocity.x = lerp(__host__.linear_velocity.x, 0, __delta__)

##  跳跃
func jump(height: float = INF):
	__jump_height__ = jump_height if height == INF else height
	# Jump
	if jump_enabled:
		__jump_timer__.start()

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