我如何检测Kinematicbody2d与Godot中的刚性2D之间的碰撞？
我试图在戈多特制作一个简单的游戏，墙壁掉下来，玩家必须躲避它。墙是一个刚性的2D，带有精灵，并附有CollisionShape2D。播放器是一个Kinematicbody2D，带有精灵和collisionShape2d。主要场景是一个Node2D，玩家和墙是一个孩子。我设法让玩家检测到碰撞，但是当我发出信号（连接到墙脚本）时，墙一无所有。我已经尝试在玩家脚本中使用body_entered信号，但是什么也没有发生。有人知道如何解决这个问题吗？
我的玩家脚本：
extends KinematicBody2D
var speed = 1300
var velocity = Vector2()
signal game_over
func get_input():
velocity = Vector2()
if Input.is_action_pressed('d'):
velocity.x += 1
if Input.is_action_pressed('a'):
velocity.x -= 1
velocity = velocity.normalized() * speed
func _physics_process(delta):
get_input()
move_and_slide(velocity, Vector2(0, 0), false, 4, 0.785, false)
for index in get_slide_count():
var collision = get_slide_collision(index)
if collision.collider.is_in_group("Level"):
death()
func death():
emit_signal("game_over")
hide()
墙脚本：
extends RigidBody2D
func _on_Player_game_over():
print("player collided") #example to see if collision is detected
I am trying to make a simple game in Godot where a wall falls down and the player has to dodge it. The wall is a RigidBody2D with a sprite and CollisionShape2D attached. The player is a KinematicBody2D with a sprite and CollisionShape2D attached. The main scene is a Node2D with the player and wall as children of it. I have managed to get the player to detect collisions but when I emit a signal (which is connected to the wall script), the wall does nothing. I have already tried using the body_entered signal in the player script, but nothing happens. Does anybody know how to fix this?
My player script:
extends KinematicBody2D
var speed = 1300
var velocity = Vector2()
signal game_over
func get_input():
velocity = Vector2()
if Input.is_action_pressed('d'):
velocity.x += 1
if Input.is_action_pressed('a'):
velocity.x -= 1
velocity = velocity.normalized() * speed
func _physics_process(delta):
get_input()
move_and_slide(velocity, Vector2(0, 0), false, 4, 0.785, false)
for index in get_slide_count():
var collision = get_slide_collision(index)
if collision.collider.is_in_group("Level"):
death()
func death():
emit_signal("game_over")
hide()
The wall script:
extends RigidBody2D
func _on_Player_game_over():
print("player collided") #example to see if collision is detected
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
我无法说出为什么您的代码不起作用。但是，我会以不同的方式做：与其发出信号，不如在
collider上调用方法：可能值得给该方法一个更好的名称。
，顺便说一句。您还可以检查对撞机是否具有该方法。例如：
其余答案正在解释如何用
arigdbody2d在上处理碰撞，“ body_entered”signal。首先确保
arigidbody2d具有contact_monitor设置为true。还将其
Contacts_reported设置为大于0的值。可以与同一身体有多个接触，您需要考虑与其他尸体的可能接触。 围绕8的值可能还可以。具有
“ body_entered”argid> arigidbody2dconnected信号< em>本身。在
arigidbody2d的方法中，处理“ body_entered”信号您将获得body> body参数：顺便说一句，我想鼓励利用碰撞层和口罩。因此，您可以缩小
arigidbody2d甚至检查。的碰撞。
使用名称：
使用组：
使用类名称（这需要向玩家添加
class_name）：检查方法：
，当然，您可以在通知上调用方法。例如：
或
I can't tell why your code is not working. However, I would do it differently: Instead of emitting a signal, call a method on the
collider:It is probably worth giving the method a better name.
By the way, you can also check if the collider has the method. For example:
The rest of this answer is explaining how to handle the collision on the
RigidBody2Dwith the"body_entered"signal.First make sure the
RigidBody2Dhascontact_monitorset totrue.Also set its
contacts_reportedto a value greater than0. There can be multiple contacts with the same body, and you need to consider possible contacts with other bodies. A value around8is probably OK.Have the
"body_entered"signal of theRigidBody2Dconnected to itself.in the method in the
RigidBody2Dthat handles the"body_entered"signal you would get abodyparameter:By the way, I would like to encourage to take advantage of collision layer and masks. So you can narrow what collisions the
RigidBody2Deven checks for.Then you can filter what body it is. You can, for example:
Use the name:
Use a group:
Use a class name (this requires to add a
class_nameto the player):Check for a method:
And, of course, you can call a method on it notify. For example:
Or