How to make a kinematic collision collide a static collision?

Questions
1

I’m doing a platform game and the character is going through a static collision

2

Do you have the Group and Mask set up correctly?

1 Like
3

Does the collision objects look correct?

1 Like
4

Do you have collision code attached to the same game object?

5

Yes

0%2008_11_2020%2021_56_54
0%2008_11_2020%2021_56_541920×1057 115 KB

0%2008_11_2020%2021_57_07
0%2008_11_2020%2021_57_071920×1057 119 KB

6

Yes

7

@britzl Yes

8

@britzl i active the debug mode and…

The character not collide with the ground : (

9

Compare the working sample with your project and examine the changes you have made.

You have probably misconfigured the group and mask of the collision objects.

1 Like
10

@britzl remade the collision groups that the tutorial said and nothing

11

Post your collision code

12

This is the player code:

function init(self)
msg.post(".", “acquire_input_focus”)

	self.moving = false
	self.input = vmath.vector3()
	self.dir = vmath.vector3(0, 1, 0)
	self.speed = 100
	self.ysp = 0
	self.correction = vmath.vector3()
end

function update(self, dt)
	if self.moving then
		local pos = go.get_position()
		pos = pos + self.dir * self.speed * dt
		go.set_position(pos)
	end
	
	self.correction = vmath.vector3()
	self.input.x = 0
	self.input.y = 0
	self.moving = false
	self.ysp = self.ysp - 5
	local pos = go.get_position()
	go.set_position(pos + vmath.vector3(0, self.ysp, 0) * dt) 
	if self.moving then
		local pos = go.get_position()
		pos = pos + self.dir * self.speed * dt
		go.set_position(pos)
	end
end

function on_message(self, message_id, message, sender)
  -- Handle collision
  if message_id == hash("contact_point_response") then
    -- Get the info needed to move out of collision. We might
    -- get several contact points back and have to calculate
    -- how to move out of all of them by accumulating a
    -- correction vector for this frame:
    if message.distance > 0 then
      -- First, project the accumulated correction onto
      -- the penetration vector
      local proj = vmath.project(self.correction, message.normal * message.distance)
      if proj < 1 then
        -- Only care for projections that does not overshoot.
        local comp = (message.distance - message.distance * proj) * message.normal
        -- Apply compensation
        go.set_position(go.get_position() + comp)
        -- Accumulate correction done
        self.correction = self.correction + comp
      end
    end
  end
end

function on_input(self, action_id, action)
	if action_id == hash('Up') then
		self.input.y = 1
		print("up") 
	elseif action_id == hash("left") then
		self.input.x = -1
		print("left")
	elseif action_id == hash("right") then
		self.input.x = 1
		print("right")
	end

	if vmath.length(self.input) > 0 then
		self.moving = true 
		self.dir = vmath.normalize(self.input)
	end
end

function final(self)
	msg.post(".", "release_input_focus")
end
13

Share the project as a zip file (exclude build and .internal folders)

1 Like