-- variable to keep door states open/closed
local ent_state = {};
-- variable to tell main we are just starting up
local mySetup = {};
-- //========================================================================
 
--////////////////////////////////////////////////////////////////////////////////////////////////
-- All doors will use the same values for these variables below - so they don't need to be arrays
--////////////////////////////////////////////////////////////////////////////////////////////////
-- all entities will start with this health
local startHealth = 500;
-- the action health value - if we go below this do our action
local actHealth   = 200;
-- used when the door is open - to enable door to be shot when open
local doorOpen_shoot_range = 200;
-- animations for door from FPE file animation section - see double-door entity
local open_door_anim = 0;
local close_door_anim = 1;
-- door states
local closed_state = 0;
local opened_state = 1;

local PlayerDist = 0 -- Check distance and animation and then destroy(e) at a distance
local AnimRun = 0  -- Check distance and animation and then destroy(e) at a distance

-- //===================================================================================================
 
-- initialize function called only once at start up by GG
function shot_explosion_init(e)  
          
   -- initialize mySetup for this entity [e]  
   mySetup[e] = nil;
   --  initialize ent_state for this entity
   ent_state[e] = nil;
    
end
  
-- this function is called every FPS by GG 
-- GG passes in the (e) number of the entity
-- so if we have 3 doors attached to this script
-- then this will be called 3 times
-- with each door's [e] number
function shot_explosion_main(e) 
   
  -- check if this door [e] number is just starting up 
  if mySetup[e] == nil then
     -- just starting so set the entity [e] health to startHealth
    SetEntityHealth(e,startHealth)
     -- this entity [e] is closed at start
    ent_state[e] = closed_state;
     
     -- setup done - so set mySetup for this entity [e] to 1
     -- we will not do this again for this entity
     mySetup[e] = 1;
      
  else
        -- the door is closed
        if ent_state[e] == closed_state then
            -- make sure collision is on
            CollisionOn(e);
     
            -- if the entity health has gone below the action health value 
            -- we can open the door
            if g_Entity[e]['health'] < actHealth then
              
				AnimRun = 1
                SetAnimationSpeed(e,200)
                SetAnimationFrames(15,100)
                -- set animation 0,1,2 the anims setup in the FPE file for this entity
                SetAnimation(open_door_anim)
                PlayAnimation(e)
         
                -- turn off collision for the door opening...
                -- or we will not be able to go through doorway
                CollisionOff(e);
         
                -- set our flag to tell script the door is open
                -- so we will not come down into this code again 
                -- ( until we set ent_state[e] = closed_state again when we close door)
                ent_state[e] = opened_state;    
         
                -- set the health back up to the start value
                -- so we can keep playing with the door
                SetEntityHealth(e,startHealth)
            end
			
			

        else
		-- Check distance and animation and then destroy(e) at a distance
		if AnimRun == 1 and PlayerDist > 1800 then 
    Destroy(e)
    end
         
            -- the door is open         
            -- get player distance from door [e]
            PlayerDist = GetPlayerDistance(e)
             
            -- we need to be (doorOpen_shoot_range) away from the door so we can
            -- turn collision ON for the door.. so the gun can shoot the door again..(to close it)
            -- if the collision is off.. then the gun can't shoot the door because..
            -- there will be no collision detection for GG to use
            if PlayerDist > doorOpen_shoot_range then
                -- turn on collision so GG can detect gun shots again       
                CollisionOn(e); 
                 
                -- if health is below action health value
                -- close the door
                if g_Entity[e]['health'] < actHealth then
                    -- do close animation
                    SetAnimation(close_door_anim)
                    PlayAnimation(e)
                    -- door closing
                    -- so turn collision back on 
                    -- so we can't walk through door
                    CollisionOn(e);
                    -- tell our flag the door is closed
                    ent_state[e] = closed_state;    
                    -- set entity health back to start value
                    SetEntityHealth(e,startHealth)
                end          
            else
                -- we are getting close to the door 
                -- we must want to go through it
                -- so make sure the collision is off
                CollisionOff(e);
            end
        end
    end
  
    -- entity tell me your health 
    --PromptLocal(e, " health "..g_Entity[e]['health'])
       
end