Crouching Behaviour

[dhutchison]

The blog post for the 2.31 update notes that crouching behaviour has been added, but the fpscontroller script example does not appear to have it implemented, so far as I can tell.

 

What is the LUA code that should be used to capture a keystroke that controls crouching? Could someone provide an example? Thanks.

[Canardia]

It's an additional parameter in UpdateController:

http://www.leadwerks.com/wiki/index.php?title=Controllers#UpdateController

[dhutchison]

Thanks, but I'm still not getting the crouching behaviour to work (I am running a script outside of the editor and I am sure I am using the latest update). Here are the relevant code lines I have written:

 

controller=CreateController(1.8,0.45,0.25,45,0) -- the last value (0) is the crouch height

 

This line does the update:

 

controller:Update(camerayaw,move,strafe,jump,40,10,crouch)

 

The next lines capture the crouch key being pressed:

 

if KeyHit(KEY_C)==1 then 
if controller:IsCrouched()==1 then
crouch=0
else
crouch=1
end
end

 

Pressing the C key causes nothing to happen. I also replaced "crouch" with "1" in the controller:Update line above and still saw no crouching behaviour.

[macklebee]

are you moving the camera as well whenever the crouch is enabled? if you turn on the DeBugPhysics, I think you will see that it is working but you need to move the camera as well to the new crouched height.

 

here is a simple game script to use in the editor that use the crouch...

require("Scripts/constants/collision_const")
require("Scripts/constants/engine_const")
require("Scripts/LinkedList")
require("Scripts/filesystem")
require("Scripts/math/math")

--Variables
dx=0.0
dy=0.0
camerapitch=0.0
camerayaw=0.0
move=0.0
strafe=0.0

--Create a player controller
controller=CreateController(1.8,0.45,0.25,45,0.8)
controller:SetCollisionType(COLLISION_CHARACTER,0)
controller:SetPositionf(0,2,0,0)
controller:SetMass(10)

controller:SetPosition(fw.main.camera.position)
camerapitch=fw.main.camera.rotation.x
camerayaw=fw.main.camera.rotation.y
controller:Move(Vec3(0,-0.9,0))
crouch = 0
cameraheight=1.8

HideMouse()
MoveMouse(GraphicsWidth()/2,GraphicsHeight()/2)
FlushKeys()
FlushMouse()

local camera = fw.main.camera
--main function
while KeyHit(KEY_ESCAPE)==0 do
movespeed=6
movesmoothing=10
jump=KeyHit(KEY_SPACE)*6.0
if controller:IsAirborne()==1 then 
	jump=0 
	movesmoothing=200
end

--Camera look
gx=Round(GraphicsWidth()/2)
gy=Round(GraphicsHeight()/2)
dx=Curve((MouseX()-gx)/4.0,dx,3.0/AppSpeed())
dy=Curve((MouseY()-gy)/4.0,dy,3.0/AppSpeed())
MoveMouse(gx,gy)
camerapitch=camerapitch+dy
camerayaw=camerayaw-dx
camerapitch=math.min(camerapitch,90)
camerapitch=math.max(camerapitch,-90)
fw.main.camera:SetRotationf(camerapitch,camerayaw,0,1)

--Player movement
move=Curve( (KeyDown(KEY_W)-KeyDown(KEY_S))*movespeed,move,movesmoothing)
strafe=Curve( (KeyDown(KEY_D)-KeyDown(KEY_A))*movespeed,strafe,movesmoothing)

if KeyHit(KEY_C)==1 then 
	if controller:IsCrouched()==1 then
		crouch=0
		cameraheight=1.8
	else
		crouch=1
		cameraheight=0.8
	end
end

--Update controller
controller:Update(camerayaw,move,strafe,jump,40,10,crouch)

fw:Update()

--Position camera
camera:SetPositionf(controller.position.x,controller.position.y+cameraheight,controller.position.z,1)

fw:Render()

Flip(0)
end

controller:Free()
ShowMouse()

[dhutchison]

Thanks. Works great. I suspect this script will help others as well.