require ("prototypes.entity.demo-spawner-animation")
require ("prototypes.entity.demo-biter-animations")
require ("prototypes.entity.demo-enemy-sounds")
local enemy_autoplace = require ("prototypes.entity.demo-enemy-autoplace-utils")
require ("prototypes.entity.demo-biter-ai-settings")

small_biter_scale = 0.5
small_biter_tint1 = {r=0.60, g=0.58, b=0.51, a=1}
small_biter_tint2 = {r=0.9 , g=0.83, b=0.54, a=1}

biter_spawner_tint = {r=0.92, g=0.54, b=0, a=0.5}

data:extend(
{
  {
    type = "unit",
    name = "small-biter",
    icon = "__base__/graphics/icons/small-biter.png",
    icon_size = 32,
    flags = {"placeable-player", "placeable-enemy", "placeable-off-grid", "not-repairable", "breaths-air"},
    max_health = 15,
    order = "b-b-a",
    subgroup="enemies",
    resistances =
    {
      {
        type = "acid",
        percent = 100
      }
    },
    healing_per_tick = 0.01,
    collision_box = {{-0.2, -0.2}, {0.2, 0.2}},
    selection_box = {{-0.4, -0.7}, {0.7, 0.4}},
    attack_parameters =
    {
      type = "projectile",
      range = 0.5,
      cooldown = 35,
      ammo_type = make_unit_melee_ammo_type(7),
      sound = make_biter_roars(0.4),
      animation = biterattackanimation(small_biter_scale, small_biter_tint1, small_biter_tint2)
    },
    vision_distance = 30,
    movement_speed = 0.2,
    distance_per_frame = 0.125,
    pollution_to_join_attack = 200,
    distraction_cooldown = 300,
    min_pursue_time = 10 * 60,
    max_pursue_distance = 50,
    corpse = "small-biter-corpse",
    dying_explosion = "blood-explosion-small",
    dying_sound =  make_biter_dying_sounds(0.4),
    working_sound =  make_biter_calls(0.3),
    run_animation = biterrunanimation(small_biter_scale, small_biter_tint1, small_biter_tint2),
    --idle_animation = biteridleanimation(small_biter_scale, small_biter_tint1, small_biter_tint2),
    ai_settings = biter_ai_settings
  },

  add_biter_die_animation(small_biter_scale, small_biter_tint1, small_biter_tint2,
  {
    type = "corpse",
    name = "small-biter-corpse",
    icon = "__base__/graphics/icons/small-biter-corpse.png",
    icon_size = 32,
    selection_box = {{-0.8, -0.8}, {0.8, 0.8}},
    selectable_in_game = false,
    subgroup="corpses",
    order = "c[corpse]-a[biter]-a[small]",
    flags = {"placeable-neutral", "placeable-off-grid", "building-direction-8-way", "not-repairable", "not-on-map"}
  }),


  {
    type = "unit-spawner",
    name = "biter-spawner",
    icon = "__base__/graphics/icons/biter-spawner.png",
    icon_size = 32,
    flags = {"placeable-player", "placeable-enemy", "not-repairable"},
    max_health = 350,
    order="b-b-g",
    subgroup="enemies",
    resistances =
    {
      {
        type = "physical",
        decrease = 2,
        percent = 15
      },
      {
        type = "explosion",
        decrease = 5,
        percent = 15
      },
      {
        type = "fire",
        decrease = 3,
        percent = 60
      }
    },
    working_sound =
    {
      sound =
      {
        {
          filename = "__base__/sound/creatures/spawner.ogg",
          volume = 1.0
        }
      },
      apparent_volume = 2
    },
    dying_sound =
    {
      {
        filename = "__base__/sound/creatures/spawner-death-1.ogg",
        volume = 1.0
      },
      {
        filename = "__base__/sound/creatures/spawner-death-2.ogg",
        volume = 1.0
      }
    },
    healing_per_tick = 0.02,
    collision_box = {{-3.2, -2.2}, {2.2, 2.2}},
    map_generator_bounding_box = {{-4.2, -3.2}, {3.2, 3.2}},
    selection_box = {{-3.5, -2.5}, {2.5, 2.5}},
    -- in ticks per 1 pu
    pollution_absorbtion_absolute = 20,
    pollution_absorbtion_proportional = 0.01,
    corpse = "biter-spawner-corpse",
    dying_explosion = "blood-explosion-huge",
    max_count_of_owned_units = 7,
    max_friends_around_to_spawn = 5,
    animations =
    {
      spawner_idle_animation(0, biter_spawner_tint),
      spawner_idle_animation(1, biter_spawner_tint),
      spawner_idle_animation(2, biter_spawner_tint),
      spawner_idle_animation(3, biter_spawner_tint)
    },
    integration =
    {
      sheet = spawner_integration()
    },
    result_units = (function()
                     local res = {}
                     res[1] = {"small-biter", {{0.0, 0.3}, {0.6, 0.0}}}
                     if not data.is_demo then
                       -- from evolution_factor 0.3 the weight for medium-biter is linearly rising from 0 to 0.3
                       -- this means for example that when the evolution_factor is 0.45 the probability of spawning
                       -- a small biter is 66% while probability for medium biter is 33%.
                       res[2] = {"medium-biter", {{0.2, 0.0}, {0.6, 0.3}, {0.7, 0.1}}}
                       -- for evolution factor of 1 the spawning probabilities are: small-biter 0%, medium-biter 1/8, big-biter 4/8, behemoth biter 3/8
                       res[3] = {"big-biter", {{0.5, 0.0}, {1.0, 0.4}}}
                       res[4] = {"behemoth-biter", {{0.9, 0.0}, {1.0, 0.3}}}
                     end
                     return res
                   end)(),
    -- With zero evolution the spawn rate is 6 seconds, with max evolution it is 2.5 seconds
    spawning_cooldown = {360, 150},
    spawning_radius = 10,
    spawning_spacing = 3,
    max_spawn_shift = 0,
    max_richness_for_spawn_shift = 100,
    autoplace = enemy_autoplace.enemy_spawner_autoplace(0),
    call_for_help_radius = 50
  },

  {
    type = "corpse",
    name = "biter-spawner-corpse",
    flags = {"placeable-neutral", "placeable-off-grid", "not-on-map"},
    icon = "__base__/graphics/icons/biter-spawner-corpse.png",
    icon_size = 32,
    collision_box = {{-2, -2}, {2, 2}},
    selection_box = {{-2, -2}, {2, 2}},
    selectable_in_game = false,
    dying_speed = 0.04,
    time_before_removed = 15 * 60 * 60,
    subgroup="corpses",
    order = "c[corpse]-b[biter-spawner]",
    final_render_layer = "remnants",
    animation =
    {
      spawner_die_animation(0, biter_spawner_tint),
      spawner_die_animation(1, biter_spawner_tint),
      spawner_die_animation(2, biter_spawner_tint),
      spawner_die_animation(3, biter_spawner_tint)
    },
    ground_patch =
    {
      sheet = spawner_integration()
    }
  }
})