-- LUA Script - precede every function and global member with lowercase name of script + '_main'
local U = require "scriptbank\\utillib"
local Q = require "scriptbank\\quatlib"

local rad = math.rad

local hurtAmount = 5

local spikeVars = { baseAng = -90, framestart = 1, frameend = 80, spikelen = 70 }

local spikes ={}

function spikes_init_name( e, name )
	Include( "utillib.lua" )
	Include( "quatlib.lua" )
	
	spikes[ e ] = { name = name, state = 'init' } 
end

local minFrame = math.huge
local maxFrame = 0

local controlEnt = nil 


function spikes_main( e )
	local spike = spikes[ e ]
	
	if spike == nil then return end
	
	local frame = GetAnimationFrame( e )
	--PromptLocal( e, spike.name .. ", " .. frame )
	if controlEnt == nil then 
		controlEnt = e
	--elseif
	--   controlEnt == e then
	--	if frame > maxFrame then 
	--		maxFrame = frame
	--	elseif 
	--		frame < minFrame then 
	--		minFrame = frame 
	--	end
	--	Prompt( minFrame .. ", " .. maxFrame )
	end
	
	if spike.state == 'init' then
		SetAnimationSpeed( e, 0.3 + math.random() )
		spike.obj = g_Entity[ e ].obj
		
		local x, y, z, xA, yA, zA = GetObjectPosAng( spike.obj )

		spike.pos = { x = x, y = y, z = z }
		
		local baseRotQ = Q.FromEuler( 0, rad( spikeVars.baseAng ), 0 )
		spike.quat = Q.Mul( Q.FromEuler( rad( xA ), rad( yA ), rad( zA ) ), baseRotQ )
		spike.state = 'ready'
		
	elseif
	   spike.state == 'ready' and 
	   U.PlayerCloserThanPos( spike.pos.x, spike.pos.y, spike.pos.z, 200 ) then
		local angle = ( frame - spikeVars.framestart ) * 
		              ( -360 / ( spikeVars.frameend - spikeVars.framestart ) )
		--if controlEnt == e then PromptLocal( e, angle ) end
		local quat = Q.Mul( spike.quat, Q.FromEuler( 0, rad( angle ), 0 ) )
		local xa, ya, za = Q.ToEuler( quat )
		
		local xo, yo, zo = U.Rotate3D( 0, 20, spikeVars.spikelen, xa, ya, za )
		
		if U.PlayerCloserThanPos( spike.pos.x + xo, spike.pos.y + yo, spike.pos.z + zo, 50 ) then
			HurtPlayer( e, hurtAmount )
		end
		
		xo, yo, zo = U.Rotate3D( 0, 60, spikeVars.spikelen, xa, ya, za )
		
		if U.PlayerCloserThanPos( spike.pos.x + xo, spike.pos.y + yo, spike.pos.z + zo, 50 ) then
			HurtPlayer( e, hurtAmount )
		end
	end
end