-- LUA Script, Player survival code

--food entity numbers
foodList = {}
foodIndex = 1
foodCount = 3

--flag to read all soldiers
locatedSoldiers = 0
--how many enemies we have
survivalEnemyCount = 0

--array to hold entity list
soldierList = {}

--store time passed
timeRead = 0

--how long befor player looses some health
delayBeforeHealthLoss = 10000

--how much does the player loose
howMuchHealthLost = 10

--flag for game over
gameover = 0

--skip first run
survivalSkipFirstLoop = 1

function survival_init(e)
	foodList [1] = 2
	foodList [2] = 3
	foodList [3] = 4

	ShowHuds()
end

function survival_main(e)
if survivalSkipFirstLoop == 1 then
	survivalSkipFirstLoop = 0
	return
end

if g_PlayerHealth  <= 0 and  gameover == 0 then
	FreezePlayer ()
	FreezeAI()
	HideHuds ()
	gameover = 1
end

if gameover == 0 then
	updateHealth()
else
	Text (-1,50,3,"YOUDIED")
end

checkForFood()

end

function updateHealth()

	if timeRead == 0 then
	timeRead = g_Time
end

if g_Time - timeRead > delayBeforeHealthLoss then

	HurtPlayer (-1, howMuchHealthLost)
	timeRead = 0
  end

end

function checkForFood()

	-- have we grabbed all enemies yet?
	if locatedSoldiers == 0 then
		survivalEnemyCount = 0
		for c = 1, 300 do
			if ai_soldier_state[c] ~= nil then
				if g_Entity[c] ~= nil then
		survivalEnemyCount = survivalEnemyCount + 1
		soldierList[survivalEnemyCount] = c
		end
	end
end
locatedSoldiers = 1
end

--check if enemies have died, if so spawn food in if they have
for c = 1 , survivalEnemyCount do
	if soldierList[c] ~= 0 then
	if g_Entity[soldierList[c]]['health'] <= 0 then
	x = g_Entity[soldierList[c]]['x']
	y = g_Entity[soldierList[c]]['y']
	z = g_Entity[soldierList[c]]['z']
	SetPosition(foodList[foodIndex],x,y,z)
	foodIndex = foodIndex + 1
	if foodIndex > foodCount then foodIndex = 1 end
	soldierList[c] = 0
			end
		end
	end

end