ImprovementType (Civ5 Type)

This page is a part of the Lua and UI Reference (Civ5).

The ImprovementType pseudo-type is actually a regular integer. Pseudo-types do not exist in Lua, they only serve a documentation purpose on the wiki! Integers labeled as ImprovementType corresponds to the ID column of the Improvements XML table.

XML: the Improvements table

Here are the ID and Type columns found in this table.

ID		Type
0		IMPROVEMENT_CITY_RUINS
0		IMPROVEMENT_HOLY_SITE
1		IMPROVEMENT_BARBARIAN_CAMP
1		IMPROVEMENT_POLDER
2		IMPROVEMENT_GOODY_HUT
3		IMPROVEMENT_FARM
4		IMPROVEMENT_MINE
5		IMPROVEMENT_QUARRY
6		IMPROVEMENT_TRADING_POST
7		IMPROVEMENT_LUMBERMILL
8		IMPROVEMENT_PASTURE
9		IMPROVEMENT_FISHING_BOATS
10		IMPROVEMENT_PLANTATION
11		IMPROVEMENT_CAMP
12		IMPROVEMENT_WELL
13		IMPROVEMENT_OFFSHORE_PLATFORM
14		IMPROVEMENT_FORT
15		IMPROVEMENT_LANDMARK
16		IMPROVEMENT_ACADEMY
17		IMPROVEMENT_CUSTOMS_HOUSE
18		IMPROVEMENT_MANUFACTORY
19		IMPROVEMENT_CITADEL

Examples

Here are different ways to query the database to retrieve the ID from the type. Those examples will return and assign the integer value 0. See also GameInfo.

local id = GameInfo.Improvements.IMPROVEMENT_HOLY_SITE.ID
local id = GameInfo["Improvements"].["IMPROVEMENT_HOLY_SITE"].ID
local id = GameInfo.Improvements{Type="IMPROVEMENT_HOLY_SITE"}().ID

Alternatively you could use the ID or the type to retrieve the value of the Description column. Those examples will return and assign the value TXT_KEY_IMPROVEMENT_HOLY_SITE.

local description = GameInfo.Improvements[0].Description
local description = GameInfo["Improvements"][0]["Description"]
local description = GameInfo.Improvements{ID=0}().Description

Used by

bool	CanPlaceGoodyAt(ImprovementType improvement, Plot plot)
string	GetHelpTextForImprovement(ImprovementType improvement, bool excludeName, bool excludeHeader, bool noMaintenance)
int	Area:GetNumImprovements(ImprovementType improvement)
	Events.GoToPediaHomePage(ImprovementType homePage)
	Events.SerialEventImprovementCreated(float hexX, int hexY, ArtStyleType continent1, ArtStyleType continent2, PlayerID player, int createImprovementType, ImprovementType createImprovementRRType, int createImprovementEra, int createImprovementState, unknown ImprovementEra = nil)
int	Game.GetImprovementUpgradeTime(ImprovementType improvement, Plot plot)
int	Player:GetAdvancedStartImprovementCost(ImprovementType improvement, bool add, Plot plot)
int	Player:GetImprovementCount(ImprovementType improvement)
int	Plot:CalculateImprovementYieldChange(ImprovementType improvement, YieldType yield, PlayerID player, bool optimal, RouteType assumeThisRoute)
bool	Plot:CanHaveImprovement(ImprovementType improvement, TeamID team, bool potential)
ImprovementType	Plot:GetImprovementType()
ImprovementType	Plot:GetRevealedImprovementType(TeamID team, bool debug)
int	Plot:GetUpgradeTimeLeft(ImprovementType improvement, PlayerID player)
bool	Plot:IsResourceConnectedByImprovement(ImprovementType improvement)
	Team:ChangeImprovementYieldChange(ImprovementType index1, YieldType index2, int change)
int	Team:GetImprovementYieldChange(ImprovementType index, YieldType index2)

The initial version of this page was created by the Civ5 API Bot, see the Civ5 API Reference FAQ. Some of the texts come from the 2kgames' wiki and most of code samples are copyrighted to Firaxis.
Functions' signatures were either copied from the 2kgames' wiki, or infered from the Lua source files and the binaries. Errors are possible.
Contributors may find help in the Contributors guide to the Civ5 API.