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-- require("__My_add_pack__.prototype.barbed-spikes-wooden.effects")	

data:extend(
{
	{
		type = "sticker",
		name = "wooden-barbed-spike-slowdown-sticker_ke",
		flags = { "not-on-map" },
		flags = {},
		animation =
		{
			filename = "__My_add_pack__/graphics/barbed-spikes-wooden/clear.png",
			priority = "extra-high",
			width = 2,
			height = 2,
			frame_count = 1
		},
		duration_in_ticks = 100,
		target_movement_modifier = 0.5
	}
})

function data_sheet(inputs)
return
	{
		layers = 
		{
			{
				  filename = "__My_add_pack__/graphics/barbed-spikes-wooden/base.png",
				  priority = "high",
				  width = 172,
				  height = 172,
				  direction_count = 1,
				  frame_count = 1,
				  line_length = 0,
				  run_mode = inputs.run_mode or "forward",
				  axially_symmetrical = false,
				  shift = { 0, 0 },
				  scale = 0.5
			}
		}
	}
end
data:extend(
{
  
  {
    type = "turret",
    name = "wooden-barbed-spike",
    icon = "__My_add_pack__/graphics/barbed-spikes-wooden/icon.png",
    icon_size = 64, icon_mipmaps = 4,
    flags = {"placeable-player","not-rotatable","player-creation","not-flammable","hidden"},
    minable = {mining_time = 1, result = "wooden-barbed-spike"},
    max_health = 56,
    corpse = "wooden-barbed-spike-remnants",
    dying_explosion = "wall-explosion",
    selection_box = {{-1, -1 }, {1, 1}},
	collision_box = {{-0.8, -0.8}, {0.8, 0.8}},
    collision_mask = {"object-layer","water-tile","resource-layer"},
    rotation_speed = 1,
    preparing_speed = 1,
	walking_speed_modifier = 1.0,
    folding_speed = 1.0,
    starting_attack_speed = 0.01,
    attacking_speed = 1.0,
    alert_when_attacking = true,
	alert_when_damaged = true,
	create_ghost_on_death = true,
	folded_animation = data_sheet{direction_count = 8, line_length = 0},

	preparing_animation = data_sheet{frame_count=1, line_length = 0},
    prepared_animation = data_sheet{},
    attacking_animation = data_sheet{},
	folding_animation = data_sheet{frame_count=1, line_length = 0, run_mode = "backward"},
	resistances = {
      {
        type = "fire",
        percent = 4.0
      },
      {
        type = "physical",
        percent = 4.0
      },
	  {
        type = "poison",
        percent = 100
      },
	  {
        type = "explosion",
        percent = 4.0
      },
	  {
        type = "laser",
        percent = 4.0
      },
	  {
        type = "acid",
        percent = 4.0
      },
	  {
        type = "electric",
        percent = 100
      },
	}, 
    base_picture =
    {
      layers =
      {
        {
          filename = "__My_add_pack__/graphics/barbed-spikes-wooden/base.png",
          priority = "high",
          width = 86,
          height = 86,
          axially_symmetrical = false,
          direction_count = 1,
          frame_count = 1,
          shift = { 0, 0 },
          hr_version =
          {
            filename = "__My_add_pack__/graphics/barbed-spikes-wooden/hr-base.png",
            priority = "high",
            width = 172,
            height = 172,
            axially_symmetrical = false,
            direction_count = 1,
            frame_count = 1,
            shift = { 0, 0 },
            scale = 0.5
          }
        },
      }
    },
	attack_parameters =
		{
		  type = "projectile",
		  ammo_category = "bullet",
		  cooldown = 0.01,
		  projectile_creation_distance = 0,
		  projectile_center = {0, 0},
		  damage_modifier = 1,
		  ammo_type =
		  {
			category = "biological",
			action =
			{
				type = "area",
				radius = 2.0,
				action_delivery = 
				{
					type = "instant",
					target_effects =
					{
						{
							type = "damage",
							damage = {amount = 2.1, type = "physical"}
						},
						{
							type = "damage",
							damage = {amount = 2.1, type = "poison"}
						},
						{
							type = "create-sticker",
							sticker = "slowdown-sticker"
						},
						{
							type = "create-sticker",
							sticker = "wooden-barbed-spike-slowdown-sticker_ke"
						},
					}
				
				},
			}
		  },
		  range = 2.00,
		  min_range = 0,
		},
    call_for_help_radius = 0,
  },
})

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flags = {"placeable-player","not-rotatable","player-creation","not-flammable","hidden"},
collision_mask = {"object-layer","water-tile","resource-layer"},

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flags = {"placeable-player","not-rotatable","player-creation","not-flammable"},
hidden = true,
collision_mask = {layers = {item = true, meltable = true, object = true, player = true, water_tile = true, is_object = true, is_lower_object = true}},	

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data:extend(
{
	{
		type = "sticker",
		name = "wooden-barbed-spike-slowdown-sticker_ke",
		flags = { "not-on-map" },
		animation =
		{
			filename = "__Poisonous_barbed_spikes__/graphics/barbed-spikes-wooden/clear.png",
			priority = "extra-high",
			width = 2,
			height = 2,
			frame_count = 1
		},
		duration_in_ticks = 200,
		target_movement_modifier = 0.2
	}
})

local hit_effects = require("__base__.prototypes.entity.hit-effects")
local sounds = require("__base__.prototypes.entity.sounds")

data:extend(
{
	{
		type = "land-mine",
		name = "wooden-barbed-spike",
		icon = "__base__/graphics/icons/land-mine.png",
		flags =
		{
			"placeable-player",
			"placeable-enemy",
			"player-creation",
			"placeable-off-grid",
			"not-on-map"
		},
		minable = {mining_time = 1, result = "wooden-barbed-spike"},
		fast_replaceable_group = "land-mine",
		mined_sound = sounds.deconstruct_small(1.0),
		max_health = 56,
		corpse = "land-mine-remnants",
		dying_explosion = "wall-explosion",
		selection_box = {{-1, -1 }, {1, 1}},
		collision_box = {{-0.8, -0.8}, {0.8, 0.8}},
		damaged_trigger_effect = hit_effects.entity(),
		open_sound = sounds.machine_open,
		close_sound = sounds.machine_close,
		force_die_on_attack = false,
		picture_safe =
		{
			filename = "__Poisonous_barbed_spikes__/graphics/barbed-spikes-wooden/base.png",
			priority = "medium",
			width = 172,
			height = 172,
			scale = 0.5
		},
		picture_set =
		{
			filename = "__Poisonous_barbed_spikes__/graphics/barbed-spikes-wooden/base.png",
			priority = "medium",
			width = 172,
			height = 172,
			scale = 0.5
		},
		picture_set_enemy =
		{
			filename = "__Poisonous_barbed_spikes__/graphics/barbed-spikes-wooden/base.png",
			priority = "medium",
			width = 172,
			height = 172,
		},
		trigger_radius = 2.0,
		ammo_category = "land-mine",
		action =
		{
			type = "direct",
			action_delivery =
			{
				type = "instant",
				source_effects =
				{
					{
						type = "nested-result",
						affects_target = true,
						action =
						{
							type = "area",
							radius = 2.0,
							force = "enemy",
							action_delivery =
							{
								{
									type = "damage",
									damage = {amount = 2.1, type = "physical"}
								},
								{
									type = "damage",
									damage = {amount = 4.2, type = "poison"}
								},
								{
									type = "create-sticker",
									sticker = "slowdown-sticker"
								},
								{
									type = "create-sticker",
									sticker = "wooden-barbed-spike-slowdown-sticker_ke"
								}
							}
						}
					}
				}
			}
		}
	}
})

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The following mods failed to load: Error while loading entity prototype "wooden-barbed-spike" (land-mine): Unknown attack delivery type: damage

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action_delivery =
{
	type = "instant",
	target_effects =
	{
		... -- all your { type = "damage", ... } things you want to be delayed
		... -- anything you don't want to be delayed
	}
}

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action_delivery = 
{
	{
		type = "instant",
		target_effects =
		{
			... -- anything you don't want to be delayed
		}
	},
	{
		type = "delayed",
		delayed_trigger = "spike-trigger",
	}
}

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data:extend
{
	{
		type = "delayed-active-trigger"
		name = "spike-trigger",
		delay = 60/4, -- a quarter of a second
		action = 
		{
			type = "direct",
			action_delivery = 
			{
				type = "instant",
				target_effects = 
				{
					... -- all your { type = "damage", ... } things you want to be delayed
				}
			}
		}
	}
}

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is_military_target = false,
allow_run_time_change_of_is_military_target = true,

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{
	type = "script",
	effect_id = "spike-effect"
}

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local cooldown = 60 -- how long after the bitters are hit should they forget about the spikes?
local accuracy = 1 -- how accurate you want the cooldown to be (1 for perfect accuracy, higher numbers will be faster).
storage.spikes = storage.spikes or {} -- storage.spikes[id] will be the last tick that the spikes with the given id hit something

script.on_event(defines.event.on_script_trigger_effect, function(event) -- will be run every time a spike damages someone
	if effect_id == "spike-effect" then
		event.target_entity.is_military_target = true -- bitters should now attack the spikes more aggressively
		storage[event.target_entity.unit_number] = {entity = event.target_entity, tick = event.tick} -- remember when the spikes where last trigerred
	end
end)

-- Now periodically, have the bitters forget about the spikes
script.on_nth_tick(accuracy, function(event) 
	for id, record in pairs(storage.spikes) do
		if event.tick >= record.tick + cooldown then
			if record.entity.valid then -- need to check that the spikes haven't been destroyed yet
				record.entity.is_military_target = false
			end
			storage.spikes[id] = nil -- don't bother checking on these spikes again
		end
	end
end)

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source_effects = 
{
	type = "damage",
	damage =
	{
		amount = 10, -- or however much damage you want
		type  = "physical" -- or whatever damage type you want (I think it will only make a difference if your spikes have a resistance to this type of damage)
	}
},

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__Poisonous_barbed_spikes__/control.lua:5: attempt to index field 'event' (a nil value)
stack traceback:
	__Poisonous_barbed_spikes__/control.lua:5: in main chunk

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script.on_event(defines.event.on_script_trigger_effect, function(event)