naval_screen = {
	category = naval
	#available_for = {}
	#blocked_for = {}
	roles = { vnr_naval_screen }
	priority = { base = 80 }

	screen_1914 = {
		name = vnr_dd_1914
		role_icon_index = 31

		priority = {
			base = 1
			modifier = { factor = 0 expert_ai_style = yes }
		}

		enable = {
			not = { has_tech = basic_ship_hull_light }		# WK-era DD has very low HP, they are not worth producing or refitting
		}

		
		history = yes
		target_variant = {
			match_value = 2000.0

			type = vnr_ship_hull_light_1
			modules = {
				fixed_ship_engine_slot = light_ship_engine
				fixed_ship_battery_slot = ship_light_battery
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = ship_fire_control_system
				fixed_ship_radar_slot = { any_of = { ship_sonar ship_mast } }
				fixed_ship_anti_air_slot = ship_anti_air
				fixed_ship_role_slot = ship_hull_light_role_dd
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = ship_light_battery
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = ship_light_battery
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_light_battery
			}
		}
		allowed_modules = {
			ship_mast
			ship_sonar
			ship_anti_air
		}
	}

	screen_1924 = {
		name = vnr_dd_1924
		role_icon_index = 31

		priority = {
			base = 1
			modifier = { factor = 0 expert_ai_style = yes }
		}

		enable = {
			not = { has_tech = interwar_ship_hull_light }		# WK-era DD has very low HP, they are not worth producing or refitting
		}

		
		history = yes
		target_variant = {
			match_value = 3000.0

			type = vnr_ship_hull_light_2
			modules = {
				fixed_ship_engine_slot = light_ship_engine
				fixed_ship_battery_slot = ship_light_battery
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = ship_fire_control_system
				fixed_ship_radar_slot = ship_sonar
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = ship_light_battery
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = ship_light_battery
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_light_battery
			}
		}
		allowed_modules = {
			ship_mast
			ship_sonar
			ship_anti_air
		}
	}

	screen_1936 = {
		name = vnr_dd_1936
		role_icon_index = 31

		priority = {
			base = 50
			modifier = { factor = 0.1 has_tech = improved_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = yes }
		}

		
		history = yes
		target_variant = {
			match_value = 4000.0

			type = vnr_ship_hull_light_3
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = ship_light_battery_double
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { any_of = { ship_radar ship_mast } upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = ship_light_battery_double
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = ship_light_battery_double
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_light_battery_double
			}
		}
		allowed_modules = {
			ship_mast
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}

	screen_1940 = {
		name = vnr_dd_1940
		role_icon_index = 31

		priority = {
			base = 80
			modifier = { factor = 0.1 has_tech = advanced_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = yes }
		}

		
		history = yes
		target_variant = {
			match_value = 5000.0

			type = vnr_ship_hull_light_4
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = dp_light_battery
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { module = ship_radar upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = dp_light_battery
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = dp_light_battery
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = dp_light_battery
			}
		}
		allowed_modules = {
			ship_mast
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}

	screen_1944 = {
		name = vnr_dd_1944
		role_icon_index = 31

		priority = {
			base = 100
			modifier = { factor = 0.1 has_tech = modern_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = yes }
		}

		
		history = yes
		target_variant = {
			match_value = 6500.0

			type = vnr_ship_hull_light_5
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_5 light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = dp_light_battery
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { module = ship_radar upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = dp_light_battery
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = dp_light_battery
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = dp_light_battery
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}

	screen_1949 = {
		name = vnr_dd_1949
		role_icon_index = 83

		priority = {
			base = 0
			modifier = { add = 200 has_tech = modern_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = yes }
		}

		
		history = yes
		target_variant = {
			match_value = 8000.0

			type = vnr_ship_hull_light_6
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_5 light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = dp_light_battery
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { module = ship_radar upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_missile_aa ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_ddg
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = ship_missile_aa
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = { upgrade = current any_of = { ship_missile_2 ship_missile_1 } }
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = dp_light_battery
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}



	# expert AI
	screen_1936_expert = {
		name = vnr_dd_1936_expert
		role_icon_index = 31

		priority = {
			base = 50
			modifier = { factor = 0.1 has_tech = improved_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = no }
		}

		
		history = yes
		target_variant = {
			match_value = 4000.0

			type = vnr_ship_hull_light_3
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = ship_light_battery_double
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_fire_control_system upgrade > current }
				fixed_ship_radar_slot = { module = ship_sonar upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				front_1_custom_slot = ship_light_battery_double
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = ship_torpedo
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_depth_charge
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}
	screen_1940_expert = {
		name = vnr_dd_1940_expert
		role_icon_index = 31

		priority = {
			base = 80
			modifier = { factor = 0.1 has_tech = advanced_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = no }
		}

		
		history = yes
		target_variant = {
			match_value = 5000.0

			type = vnr_ship_hull_light_4
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = ship_light_battery_double
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { module = ship_radar upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				fixed_ship_extra_secondaries_slot = { any_of = { light_miscellaneous generic_miscellaneous } }
				front_1_custom_slot = ship_light_battery_double
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = ship_anti_air
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_depth_charge
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}
	screen_1944_expert = {
		name = vnr_dd_1944_expert
		role_icon_index = 31

		priority = {
			base = 100
			modifier = { factor = 0.1 has_tech = modern_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = no }
		}

		
		history = yes
		target_variant = {
			match_value = 6500.0

			type = vnr_ship_hull_light_5
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_5 light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = ship_light_battery_double
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { module = ship_radar upgrade > current }
				fixed_ship_anti_air_slot = { upgrade > current any_of = { ship_anti_air } }
				fixed_ship_role_slot = ship_hull_light_role_dd
				front_1_custom_slot = ship_light_battery_double
				mid_1_custom_slot = ship_anti_air
				mid_2_custom_slot = ship_anti_air
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_depth_charge
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}
	screen_1946_expert = {
		name = vnr_dd_1946_expert
		role_icon_index = 63

		priority = {
			base = 0
			modifier = { add = 150 has_tech = destroyer_missile_upgrade }
			modifier = { factor = 0 expert_ai_style = no }
		}

		
		history = yes
		target_variant = {
			match_value = 7000.0

			type = vnr_ship_hull_light_5
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_5 light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = ship_light_battery_double
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_sonar upgrade > current }
				fixed_ship_radar_slot = { module = ship_radar upgrade > current }
				fixed_ship_anti_air_slot = ship_missile_aa
				fixed_ship_role_slot = ship_hull_light_role_dda
				front_1_custom_slot = ship_light_battery_double
				front_2_custom_slot = ship_missile_aa
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = ship_torpedo
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_depth_charge
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}
	screen_1949_expert = {
		name = vnr_dd_1949_expert
		role_icon_index = 83

		priority = {
			base = 0
			modifier = { add = 200 has_tech = modern_ship_hull_light }
			modifier = { factor = 0 expert_ai_style = no }
		}

		
		history = yes
		target_variant = {
			match_value = 8000.0

			type = vnr_ship_hull_light_6
			modules = {
				fixed_ship_engine_slot = { upgrade = current any_of = { light_ship_engine_5 light_ship_engine_4 light_ship_engine_3 light_ship_engine_2 light_ship_engine_1 } }
				fixed_ship_battery_slot = { upgrade = current any_of = { ship_missile_2 ship_missile_1 } }
				fixed_ship_torpedo_slot = ship_torpedo
				fixed_ship_fire_control_system_slot = { module = ship_fire_control_system upgrade > current }
				fixed_ship_radar_slot = { module = ship_sonar upgrade > current }
				fixed_ship_role_slot = ship_hull_light_role_ddg
				fixed_ship_extra_secondaries_slot = ship_radar_jammer
				fixed_ship_extra_electronics_slot = { module = ship_radar upgrade > current }
				front_1_custom_slot = ship_missile_aa
				mid_1_custom_slot = ship_torpedo
				mid_2_custom_slot = { upgrade = current any_of = { ship_missile_2 ship_missile_1 } }
				rear_1_custom_slot = ship_depth_charge
				rear_2_custom_slot = ship_depth_charge
			}
		}
		allowed_modules = {
			ship_depth_charge
			ship_sonar
			ship_anti_air
			ship_radar
		}
	}
}