NML:Replace new sprites
Vehicles, Stations, Canals, Bridges, Towns, Houses, Industries (Tiles), Cargos, Airports+Tiles, Objects, Railtypes, Roadtypes, Tramtypes, Terrain
Over time, several features have been added to OpenTTD that require new sprites. As these sprites are not present in the original base graphics and only found in the extra grf of each base set. They cannot be replaced using a normal replace block. Instead, a replacenew block has to be used. The semantics are like this:
replacenew [<block-name>](<type>, [<image-file>[, <offset>]]) {
list of realsprites
}
A <block_name> is optional but required, if you want to define alternative sprites for the sprite block so that it can be referenced there.
The <type> parameter indicates the type of sprites that will be replaced. It should be an identifier from the first column of the following table.
For information on what sprites are needed and in what order, it's generally best to look at the OpenGFX source [1], in the sprites/extra directory.
| Type | Number of sprites |
|---|---|
| PRE_SIGNAL | 48 |
| PRE_SIGNAL_SEMAPHORE | 112 |
| PRE_SIGNAL_SEMAPHORE_PBS | 240 |
| CATENARY | 48 |
| FOUNDATIONS_SLOPES | 74 |
| FOUNDATIONS_SLOPES_HALFTILES | 90 |
| CANALS | 65 |
| ONE_WAY_ROAD | 6 |
| COLOURMAP_2CC | 256 |
| TRAMWAY | 113  1.10  NML 0.5 119
|
| COAST_TILES | 16[1] |
| COAST_TILES_BASEGFX | 10[1] |
| COAST_TILES_DIAGONAL | 18[1] |
| SLOPED_RAILS | 12 |
| AIRPORTS | 15 |
| ROAD_STOPS | 8 |
| AQUEDUCTS | 8 |
| AUTORAIL | 55 |
| FLAGS | 36 |
| OTTD_GUI | 184 |
| AIRPORT_PREVIEW | 9 |
| RAILTYPE_TUNNELS | 16 |
| OTTD_RECOLOUR | 1 |
Parameter two <image-file> (optional) is a literal (quoted) string that specifies the default file where the sprites are located. This may be overridden per-sprite.
Parameter <offset> is optional and has a default value of 0. Setting this value sets an offset into the block of sprites, so only a subset of the sprites (starting at offset) will be replaced. An offset is not allowed in the case of the sprite types marked with [1]. Don't use offsets, if you want you NewGRF compatible with TTDPatch.
