-- AI : Melee Behavior for classic zombies
-- mods by J_C
--
--/////////////////////////////////////////////////////////////////////////////////
--
-- To use this script... 
-- These settings must be setup in the zombie FPE file
-- Fat Zombie , Zombie Nurse
-- animmax       = 7
-- anim0         = 211,232   ; idle0
-- anim1         = 2499,2525 ; zombie walk
-- anim2         = 2528,2581 ; attack1
-- anim3         = 41,60     ; fake death
-- anim4         = 211,232   ; idle0
-- anim5         = 913,936   ; rise from death
-- anim6         = 913,913   ; idle-death

-- Zombie Doctor , Zombie Surgeon , Zombie Cop
-- animmax       = 7
-- anim0         = 210,235   ; idle
-- anim1         = 235,259   ; zombie walk
-- anim2         = 319,355   ; attack1
-- anim3         = 64,79     ; fake death
-- anim4         = 211,232   ; idle0
-- anim5         = 494,522   ; rise from death
-- anim6         = 494,494   ; idle-death

--/////////////////////////////////////////////////////////////////////////////////

module_combatmelee = require "scriptbank\\ai\\module_combatmelee"

local zombie_wait      = 1
local zombie_startmove = 2
local zombie_moved     = 3

local num = 0
local AIObjNo = 0
local zhealth = 0

local zombie_wtTm = {}
local zombie_state = {}
local zombie_startIdle = {}
local zombie_oldHealth = {}

function ai_classic_zombie_init(e)
	-- try to get zombies to start fake death
	zombie_state[e] = 0
	num = math.random(1,2)	
	if num == 1 then
	    -- fake death
		zombie_startIdle[e] = 6
		StartTimer(e)
	else
	   -- normal idle
		zombie_startIdle[e] = 0
	end
	
	-- play dead time
	zombie_wtTm[e] = math.random(3, 7) * 1000
	
	module_combatmelee.init(e,ai_combattype_patrol)
	
	zombie_oldHealth[e] = g_Entity[e]['health']
	
end

function ai_classic_zombie_main(e)

	zhealth = g_Entity[e]['health']
	if zhealth > 0.0 and zhealth < zombie_oldHealth[e] then
		-- we are still alive
		-- but we are hurt - lets fake death
		zombie_startIdle[e] = 6
		-- keep old health value
		zombie_oldHealth[e] = g_Entity[e]['health']	
	end

    if zombie_startIdle[e] == 0 then
		module_combatmelee.main(e,ai_combattype_patrol)
	else
		ai_classic_zombie_fakeDeath(e)
	end
	
end


function ai_classic_zombie_fakeDeath(e)
	AIObjNo = g_Entity[e]['obj']
	PlayerDist = GetPlayerDistance(e)
	
	CharacterControlManual(e)
	AISetEntityControl(AIObjNo,AI_MANUAL)
	
	if zombie_state[e] == 0 then
		SetAnimation(zombie_startIdle[e])
		LoopAnimation(e)
		SetAnimationSpeedModulation(e,1.0)
		zombie_state[e] = zombie_wait
		StartTimer(e)
		
	elseif zombie_state[e] == zombie_wait then
		-- zombie in idle-death
		ai_classic_zombie_waitToRise(e, AIObjNo, PlayerDist)
		
	elseif zombie_state[e] == zombie_startmove then
		-- zombie is rising to feet - wait here for rise anim to finish
		if GetTimer(e) > 2500 then
			--zombie_state[e] = zombie_moved
			zombie_state[e] = 0
			-- now do normal combatmelee main code
			zombie_startIdle[e] = 0			
		end		
	end
end

-- get zombies to rise from fake death
function ai_classic_zombie_waitToRise(e, AIObjNo, PlayerDist)
	zombie_state[e] = zombie_wait
	if GetTimer(e) > zombie_wtTm[e] then
	    -- only move when player is near and can see
		if PlayerDist < AIGetEntityViewRange(AIObjNo) and g_Entity[e]['plrvisible'] == 1 then
			zombie_state[e] = zombie_startmove			
			SetAnimation(5) 
			PlayAnimation(e)
			SetAnimationSpeedModulation(e,0.2)
			StartTimer(e)
		end
	end		
end