U = U or require "scriptbank\\utillib"
local inspectlist = {}

function entitylookingnear_init(e)

end 

function entitylookingnear_main(e)
	if inspectlist[e] == nil then 
		inspectlist[e] = {}
		local count = 0
		for a = 1, g_EntityElementMax do 
			if GetEntityName(a) == "inspectable" then
				count = count + 1
				inspectlist[e][count] = a 
			end 
		end 
		return 
	end 
	CollisionOff(e)
	local pxp, pyp, pzp = g_PlayerPosX, g_PlayerPosY, g_PlayerPosZ
	local pax, pay, paz = g_PlayerAngX, g_PlayerAngY, g_PlayerAngZ
	SetPosition(e, pxp, pyp + 30, pzp)
	SetRotation(e, pax, pay, paz)
	if GetTimer(e) > 15 then 
		StartTimer(e)
		local islookingnear = 0
		for a,b in pairs (inspectlist[e]) do 
			islookingnear = IsEntityLookingNear(e, b, 500)
			if islookingnear == g_Entity[b]['obj'] then 
				islookingnear = "yes, i have entity : "..b
				break
			end
		end 
		PromptDuration(islookingnear, 500)
	end 
	
end 




function IsEntityLookingNear( e, t, dist)
	local function sqrd3( x1, y1, z1, x2, y2, z2 )
		local dx, dy, dz = x1 - x2, y1 - y2, z1 - z2
		return dx*dx+dy*dy+dz*dz
	end
	local rad = math.rad
	local eObj = g_Entity[e]['obj']
	local tObj = g_Entity[t]['obj']
	local x1, y1, z1, ax1, ay1, az1 = GetEntityPosAng(e)
	local x2, y2, z2 = GetEntityPosAng(t)
	if not U.CloserThan( x1, y1, z1, x2, y2, z2, dist ) then return "to far" end
	local ox, oy, oz = U.Rotate3D(0, 0, dist*2, rad(ax1), rad(ay1), rad(az1))
	local x3, y3, z3 = x1 + ox, y1 + oy, z1 + oz 
	local ray1 = IntersectStatic(x1, y1, z1, x3, y3, z3, eObj)
	if ray1 == nil then ray1 = 0 end 
	local x4, y4, z4
	local dist1 = nil 
	if ray1 > 0 then 
		x4, y4, z4 = GetIntersectCollisionX(), GetIntersectCollisionY(), GetIntersectCollisionZ()
		dist1 = sqrd3(x1, y1, z1, x4, y4, z4)
	end 
	local ray2 = IntersectAll(x1, y1, z1, x3, y3, z3, eObj)
	if ray2 == nil then ray2 = 0 end 
	local dist2 = nil 
	if ray2 > 0 then 
		x4, y4, z4 = GetIntersectCollisionX(), GetIntersectCollisionY(), GetIntersectCollisionZ()
		dist2 = sqrd3(x1, y1, z1, x4, y4, z4)
	end 
	local ray3 = RayTerrain(x1, y1, z1, x3, y3, z3)
	if ray3 == nil then ray3 = 0 end 
	local dist3 = nil 
	if ray3 > 0 then 
		x4, y4, z4 = GetRayCollisionX(), GetRayCollisionY(), GetRayCollisionZ()
		dist3 = sqrd3(x1, y1, z1, x4, y4, z4)
	end 
	if dist1 == nil and dist2 == nil and dist3 == nil then return "nothing" end 
	if dist1 == nil then dist1 = math.huge end 
	if dist2 == nil then dist2 = math.huge end 
	if dist3 == nil then dist3 = math.huge end 
	if dist3 < dist1 and dist3 < dist2 then return "terrain" end 
	if dist1 < dist2 then 
		return ray2 
	else 
		return ray1 
	end 
end