model in editor position

[Rick]

So my "model" is a character object. I have it basically like a pivot. I only really care about the position because I place a controller at the position of the object in the editor. My issue is that the first time I run it it doesn't set the controller position correction. What am I missing?

 

require("scripts/class")

local class=CreateClass(...)


function class:InitDialog(grid)
self.super:InitDialog(grid)

group = grid:AddGroup("Character")
group:AddProperty("model", PROPERTY_FILE, "GMF Files (*.gmf):gmf", "", "Model Files")
group:AddProperty("controller_height", PROPERTY_FLOAT, "Controller Height")
group:AddProperty("controller_radius", PROPERTY_FLOAT, "Controller Radius")
group:AddProperty("controller_step_height", PROPERTY_FLOAT, "Controller Step Height")
group:AddProperty("controller_max_slope", PROPERTY_FLOAT,  "Controller Max Slope")
group:Expand(1)
end

function class:CreateObject(model)
local object=self.super:CreateObject(model)

object.model = model
local height = tonumber(object:GetKey("controller_height", "1.8"))
local radius = tonumber(object:GetKey("controller_radius", "0.4"))
local step = tonumber(object:GetKey("controller_step_height", "0.5"))
local slope = tonumber(object:GetKey("controller_max_slope", "45.0"))

object.oneTime = false
object.controller = CreateController(height, radius, step, slope)
object.controller:SetMass(1.0)
EntityType(object.controller, 1)
object.controller:SetPosition(object.model:GetPosition())


function object:SetKey(key,value)
	--Notify(key.." "..value)
	if key=="model" then

	else
		return self.super:SetKey(key,value)
	end
	return 1
end

function object:GetKey(key,value)
	if key=="" then

	else
		return self.super:GetKey(key,value)
	end
	return value
end

function object:Update()
	if GetGlobalString("mode") == "GAME_MODE" then
		if object.oneTime == false then
			Notify("inside")
			object.oneTime = true

			object.controller:SetPosition(object.model:GetPosition())
		end
	else
		-- constantly update the controller to the model in scene
		--object.controller:SetPosition(object.model:GetPosition())
	end
end

[macklebee]

not really following what you are asking... when i place the model in the scene the controller is created at its location... and if i uncomment the setpostion in the update function it continues to follow it when i move it...

[Rick]

Now when I create a scene with a terrain and place the model the controller falls right through the terrain. What gives. The most frustrating thing about the new editor and lua is getting things to work the way you want in the editor vs when you run via game.

 

So if you make that object if sits correctly where you place it? I assume you created this object then? What do your files that you created for this look like?

 

I actually have to do "run game" once before it resets correctly and doesn't fall through. Maybe I'll try resyncing or something.

[Rick]

Also, pressing the reset physics puts my controller at the origin. *sigh*

[macklebee]

Now when I create a scene with a terrain and place the model the controller falls right through the terrain. What gives. The most frustrating thing about the new editor and lua is getting things to work the way you want in the editor vs when you run via game.

 

So if you make that object if sits correctly where you place it? I assume you created this object then? What do your files that you created for this look like?

 

I actually have to do "run game" once before it resets correctly and doesn't fall through. Maybe I'll try resyncing or something.

 

whats frustrating is that lua worked better in multistate but Josh decided to listen to few people and changed it to singlestate... now standard scripted entities either do not work or only work inside the editor. not to mention all of the other issues that are rearing their ugly head since this update... like CreateController() or CreateFramewerk() not working except inside the editor...

 

the problem you are facing is the same thing that I had already encountered a month ago when i did this exact same thing for multistate lua... the controller needs to be offset from the model half the height of the controller because it will spawn the middle of the controller in the middle of the model. So if your model is less than half the height of the controller to the ground it will create the controller below the terrain... and therefore the controller will fall thru the ground.

[Rick]

Oh yeah that's right. Thanks. I'll just uncomment the "editor" mode setting the position and call it good.

 

I can't comment on the outside of the editor. Haven't tried that yet.

[Josh]

For the crawler model, I ended up using the Reset() function to get around the problem of repositioning the controller. This is written for multistate Lua, so it needs some small changes to work:

dofile("scripts/base.lua")
dofile("scripts/math.lua")
dofile("scripts/linkedlist.lua")

AINodeScanRange=100

AnimationWalk=0
AnimationIdle=1

animspeed={}

animspeed[AnimationWalk]=0.036
animspeed[AnimationIdle]=0.01

dummynode=LoadModel("abstract::info_ai_node.gmf")
if dummynode~=nil then
dummynode:Hide()
end

function Cleanup()
if dummynode~=nil then
	dummynode:Free()
	dummynode=nil
end
end

function Reset(model)
local entity=entitytable[model]
if entity==nil then return end
entity.controller:SetPosition(Vec3(model.position.x,model.position.y+0.9,model.position.z))
entity.angle=model.rotation.y+180.0
model:SetTarget(nil,0)
end

function UnlockKeys(model)
model:SetTarget(nil)
end

function SetKey(model,key,value)
local entity=entitytable[model]
if entity==nil then return 1 end
if key=="enabled" then
	if entity.controller~=nil then
		if value=="0" then
			entity.controller:SetMass(0)
		else
			entity.controller:SetMass(10)
		end				
	end
end
return base_SetKey(model,key,value)
end

function Spawn(model)
local entity=base_Spawn(model)

entity.angle=model.rotation.y
entity.controller=CreateController(1.8,0.45,0.25,45)
entity.controller:SetPosition(entity.model.position)
entity.controller:SetRotation(entity.model.rotation)
entity.controller:Move(Vec3(0,0.9,0))
entity.controller:SetCollisionType(1,0)
entity.controller:SetMass(10)
entity.currentanimation=0

if entity.model:CountAnimations()<2 then
	--LoadAnimation(entity.model,"abstract::actor_cartoon2.gmf")
end

function entity:ChooseNewNode(ainode)
	local nodes={}
	local i
	local count=0
	local newtarget

	--Create a table of all AI nodes this node is connected to
	for i=0,15 do
		nodes[count]=ainode:GetTarget(i)
		if nodes[count]~=nil then
			if nodes[count]~=self.prevnode then --avoid doubling back
				count=count+1
			end
		end
	end

	--Choose a random node
	if count>0 then
		newtarget=nodes[math.random(0,count-1)]
		self.model:SetTarget(newtarget,0)
	else
		--no node found, so let's just use the previous node
		--self.model:SetTarget(self.prevnode,0)
		self.model:SetTarget(nil,0)
	end

	--if ainode~=nil then
		self.prevnode=ainode
	--end

end

function entity:Update()
	local dx,dz,p
	local target
	local ainode
	local closestainode=nil
	local closestdistance=10000000.0
	local perfectangle
	local noderadius
	local movement=0

	target=self.model:GetTarget(0)
	--b=CurrentWorld().entities
	--If target is nil, we need to choose an AI node to move to
	if target==nil then

		if dummynode~=nil then
			for ainode in iterate(dummynode.reference.instances) do
				if ainode~=self.prevnode then
					if ainode:Hidden()==0 then
						d=EntityDistance(ainode,self.model)
						if d<AINodeScanRange then --dismiss nodes that are far away
							if PointVisible(self.model.aabb:Center(),ainode.mat:Translation(),0,COLLISION_AILINEOFSIGHT)==1 then --line-of-sight test
								if d<closestdistance then
									closestdistance=d
									closestainode=ainode
								end
							end
						end
					end
				end
			end

			--Found a valid AI node, so set the target
			if closestainode~=nil then
				self.model:SetTarget(closestainode,0)
			end

		end

	end

	--We have a target node to move to
	if target~=nil then

		--Figure out angle between actor and target
		dx=target.mat.tx-self.model.mat.tx
		dz=target.mat.tz-self.model.mat.tz
		perfectangle=math.deg(math.atan2(-dx,dz))

		--Calculate angle between the actor and the target and adjust as necessary.
		--This provides a smoother more natural movement, and the character takes
		--the easiest path instead of pointing straight at the target node.

		local noderadius=tonumber(target:GetKey("radius","4.0"))
		local noderange=tonumber(target:GetKey("range","1.0"))

		--Get the distance between the projected entity vector and the node 
		model:SetRotation(Vec3(0,self.angle,0),1)
		local d=LineCircleDistance(model.mat.tx,model.mat.tz,model.mat.tx+model.mat.kx*100.0,model.mat.tz+model.mat.kz*100.0,target.mat.tx,target.mat.tz,3.0,1,0)

		--If the distance is over the radius, increment the angle towards the node
		local turnradius = 1.0
		turnradius = turnradius+clamp( 90.0*(1.0 - clamp( d/1.0,0 ,1) ),0,10 )
		if math.abs(d)>noderadius then
			self.angle=IncAngle(perfectangle,self.angle,turnradius*AppSpeed())
		end

		--Choose new node when target node is close enough
		--We only care about the 2D distance on the XZ plane
		if math.sqrt(dx*dx+dz*dz)<noderange then
			self:ChooseNewNode(target)
		end

		movement=2
		self.currentanimation=0
	else
		movement=0
		self.currentanimation=1
	end

	--Update the controller
	self.controller:Update(self.angle,movement,0,0,40,1)

	self.model:SetPosition(self.controller.position)
	self.model:SetRotation(self.controller.rotation)
	self.model:Move(Vec3(0,-0.9,0))
	self.model:Turn(Vec3(0,180,0))

	local frame=AppTime()*0.08
	frame=math.mod(frame,130-70)+70

	if EntityCulled(model,fw.Main.camera)==0 then
		self.model:Animate(frame,1,0,1)
	end
end

return entity
end

function Update(model)
local entity
for model,entity in pairs(entitytable) do
	if entity.model:Hidden()==0 then
		if entity.enabled~=0 then
			entity:Update()
		end
	end
end
end

function Kill(model)
local entity=entitytable[model]
if entity~=nil then
	if entity.controller~=nil then
		entity.controller:Free()
		entity.controller=nil
	end
end
base_Kill(model)
end

[Rick]

I just added 1/2 the controller height to the y position of the object. Since the object ends up being on the plane of the terrain this moves the controller up to the terrain level and it doesn't fall through anymore.