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https://github.com/2talltyler/itl_houses

A house replacement set for OpenTTD. Formerly known as Improved Town Layouts.
https://github.com/2talltyler/itl_houses

newgrf openttd

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A house replacement set for OpenTTD. Formerly known as Improved Town Layouts.

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README 

        
# ITL Houses



![Photo credit: Kale on Discord](docs/itl_kale.png)

_Photo credit: Kale on Discord_



A house replacement set using default graphics with new rules and features, for **Temperate**, **Subarctic**, and **Subtropic**.



Formerly known as `Improved Town Layouts`.



## Subarctic & Subtropic Features

### Better downtowns and suburbs

- Flats are capped at 1 per every 10 houses

- Each office building requires 1000 population

- Office buildings cluster together into a commercial district

- Landmarks (theatre, cinema, etc) and office buildings added from other climates for greater variety



### Houses selected by land value

- Land value is added by:

  - Water nearby

  - Being close to a town center

  - Being in a city

  - Not being in desert

  - Having a fountain or statue nearby

  - Being in the catchment of a station receiving passengers, mail, goods, water, food, or vehicles (FIRS)

- Houses with accent colours are recoloured based on the land value:

  - 4..6: Red

  - 7..9: Yellow

  - 10..12: Green

  - 13-15: Blue

  - 16-18: Purple

  - 19+: Pink



## Temperate Features 

(Legacy features, to be changed to match Subarctic and Subtropic)



### Better downtowns and suburbs

- High-density residential and commercial buildings only grow within the coverage area of a passenger station

- Downtown buildings cluster together

  - Pre-skyscraper brick buildings cluster separately from skyscrapers, so some cities have a separate "Old" and "New Town"

  - Note: A gap in passenger station coverage will block the cluster from expanding in that direction, since buildings may only grow within 2 tiles of another in its cluster

- Downtowns stay proportional to the town

  - Each office building requires houses for its workers, so the towers won't overrun the suburbs



### Historic Preservation

- All buildings have longer lifespans to reduce the churn of constant rebuilding

- Historic downtown buildings are kept in some towns, but demolished in others

- Landmark buildings last forever



### Landmark buildings

- Landmarks lend character to your city and often generate increased passenger traffic

- Some landmarks only grow in Cities (Hotel, Spa)

- Some landmarks only grow when the town has enough population (Stadium, University, Courthouse)

- All landmarks are kept from appearing too often, either some distance apart or only one per town



### Start as early as 1700

- Introduction dates range from 1700 to 2000, allowing a slow progression over time

- Old houses accept Wood (until 1850) and Coal (until 1945) for fuel

- Early buildings have reduced population to allow older, slower vehicles to keep up with demand

  - 1700-1850: 1/4 population

  - 1850-1950: 1/2 population



## Compatibilities

- Compatible with all industry sets and GameScripts (please report any problems)

- Uses only base game sprites, thus compatible with any base graphics set including Original TTD, OpenGFX, aBase, zBase, and NightGFX

- Requires OpenTTD version 1.10.0, JGR version 0.34, or better.



## Parameters

Use additional sprites. Default off.

- Use Bank sprites

  - Adds the Bank sprites as a University (temperate bank sprite) and a Courthouse (sub-arctic bank sprite)

  - Not recommended if playing with an industry set which includes banks

- Use FIRS Hotel sprites

  - Adds the sub-arctic Hotel sprite as a Spa

  - Not recommended if playing with FIRS, which also uses this sprite

- Use sub-tropical sprites (Temperate climate)

  - Adds the sub-tropical church sprite as an additional Church type

  - Adds one of the flats sprites as a random sprite of the Warehouse



## Code Reference

All code is commented and is organized into several .nml files which are combined by a simple Python script into a merged .nml file for compiling into the .grf. All of these files are in /src/.



If you have any questions, please feel free to contact me and I will do my best to help.



## Translations

Currently available in:

- English

- Simplified Chinese (SuperCirno)

- Traditional Chinese (jjyao88)

- Czech (adpro)

- French (arikover)

- German (WoelfiVW)

- Japanese (fmang)



Please feel free to translate into your language and submit a Pull Request.



## Limitations / Not in Scope

- This is a house replacement set. It does not improve the behavior of other NewGRF houses, how towns build roads, or [town growth](https://wiki.openttd.org/en/Manual/Towns#town-growth).