A vehicle (NFO)
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| − | This is an explanation of how to code a vehicle. You should have the [http://wiki | + | This is an explanation of how to code a vehicle. You should have the [http://newgrf-specs.tt-wiki.net/wiki/Main_Page wiki] open while you read this, and refer to it. I will gloss over a lot of things that are explained in detail there. |
__TOC__ | __TOC__ | ||
| Line 15: | Line 15: | ||
</pre> | </pre> | ||
| − | *The real sprites are the graphics your vehicle will use. See [http://wiki | + | *The real sprites are the graphics your vehicle will use. See [http://newgrf-specs.tt-wiki.net/wiki/Action1 the wiki page]. |
| − | *The action 2 gives the graphics a label (a "cargoID", although I prefer to think of it as an Action 2 ID). See [http://wiki | + | *The action 2 gives the graphics a label (a "cargoID", although I prefer to think of it as an Action 2 ID). See [http://newgrf-specs.tt-wiki.net/wiki/Action2/Vehicles the wiki page]. |
| − | *The | + | *The [[VarAction2]]s are decision-making code between the action 3 and the action 2 (nb: ''you read action 2 chains from the bottom up, starting with the action 3 and ending with a "real" action 2!''). They can also be used to do all kinds of cool tricks with the use of callbacks. Your first vehicle will probably not have any of these at all, but will simply have an action 3 pointing directly to a "real" action 2. |
| − | *The action 3 is where you tell the vehicle what sprites to use. See [http://wiki | + | *The action 3 is where you tell the vehicle what sprites to use. See [http://newgrf-specs.tt-wiki.net/wiki/Action3 the wiki page]. |
| − | *The action 4 sets the name of the vehicle. See [http://wiki | + | *The action 4 sets the name of the vehicle. See [http://newgrf-specs.tt-wiki.net/wiki/Action4 the wiki page]. |
| − | *The action 0 sets the properties for the vehicle. See [http://wiki | + | *The action 0 sets the properties for the vehicle. See [http://newgrf-specs.tt-wiki.net/wiki/Action0/Vehicles the wiki page]. |
| + | |||
| + | ==An example== | ||
| + | Here is an example of a simple train locomotive. As you can see, it's quite heavily commented. Don't be afraid to use a ''lot'' of comments to remind yourself what's where in your NFO. | ||
| + | |||
| + | <pre> | ||
| + | // My Locomotive (0C) ----------------------------------------------------------------- | ||
| + | |||
| + | 1290 * 4 01 00 01 08 | ||
| + | 1604 SPRITES\myloco.pcx 0 0 01 24 8 -3 -12 | ||
| + | 1605 SPRITES\myloco.pcx 16 0 09 17 22 -14 -9 | ||
| + | 1606 SPRITES\myloco.pcx 48 0 01 12 32 -16 -8 | ||
| + | 1607 SPRITES\myloco.pcx 96 0 09 17 22 -6 -9 | ||
| + | 1608 SPRITES\myloco.pcx 128 0 01 24 8 -3 -12 | ||
| + | 1609 SPRITES\myloco.pcx 144 0 09 17 22 -14 -9 | ||
| + | 1610 SPRITES\myloco.pcx 176 0 01 12 32 -16 -8 | ||
| + | 1611 SPRITES\myloco.pcx 224 0 09 17 22 -6 -9 | ||
| + | |||
| + | 1299 * 9 02 00 AA 01 01 00 00 00 00 | ||
| + | |||
| + | 1303 * 10 03 00 01 0C 00 AA 00 | ||
| + | |||
| + | 1304 * 23 04 00 1F 01 0C "My Locomotive (Diesel)" 00 | ||
| + | 1305 * 57 00 00 17 01 0C | ||
| + | 12 FD | ||
| + | 00 \w1-1-1960 // introdate | ||
| + | 02 14 // reliability | ||
| + | 03 \b20 // vehicle life | ||
| + | 04 \b40 // class life | ||
| + | 0D 88 // running cost | ||
| + | 17 25 // purchase cost | ||
| + | 19 08 // engine type | ||
| + | 09 85 00 // speed | ||
| + | 16 \b98 // weight | ||
| + | 0B \w2000 // power | ||
| + | 1F 41 // Tractive effort | ||
| + | 1E 00 // callbacks | ||
| + | 27 02 // flags | ||
| + | 21 00 // shortened | ||
| + | 0E 30 4C 00 00 // run cost base | ||
| + | 05 00 // rail type | ||
| + | 06 04 // climate | ||
| + | 13 00 // doublehead | ||
| + | 14 00 // capacity | ||
| + | 15 00 // cargo | ||
| + | 08 00 // AI passenger | ||
| + | 18 20 // AI rank | ||
| + | </pre> | ||
| + | [[category:NFO]] | ||
Latest revision as of 13:50, 8 August 2011
This is an explanation of how to code a vehicle. You should have the wiki open while you read this, and refer to it. I will gloss over a lot of things that are explained in detail there.
Contents |
[edit] Basic layout
The basic code structure for a vehicle in NFO is as follows:
Real sprites (Action 1) Action 2 VarAction 2s Action 3 Action 4 Action 0s
- The real sprites are the graphics your vehicle will use. See the wiki page.
- The action 2 gives the graphics a label (a "cargoID", although I prefer to think of it as an Action 2 ID). See the wiki page.
- The VarAction2s are decision-making code between the action 3 and the action 2 (nb: you read action 2 chains from the bottom up, starting with the action 3 and ending with a "real" action 2!). They can also be used to do all kinds of cool tricks with the use of callbacks. Your first vehicle will probably not have any of these at all, but will simply have an action 3 pointing directly to a "real" action 2.
- The action 3 is where you tell the vehicle what sprites to use. See the wiki page.
- The action 4 sets the name of the vehicle. See the wiki page.
- The action 0 sets the properties for the vehicle. See the wiki page.
[edit] An example
Here is an example of a simple train locomotive. As you can see, it's quite heavily commented. Don't be afraid to use a lot of comments to remind yourself what's where in your NFO.
// My Locomotive (0C) ----------------------------------------------------------------- 1290 * 4 01 00 01 08 1604 SPRITES\myloco.pcx 0 0 01 24 8 -3 -12 1605 SPRITES\myloco.pcx 16 0 09 17 22 -14 -9 1606 SPRITES\myloco.pcx 48 0 01 12 32 -16 -8 1607 SPRITES\myloco.pcx 96 0 09 17 22 -6 -9 1608 SPRITES\myloco.pcx 128 0 01 24 8 -3 -12 1609 SPRITES\myloco.pcx 144 0 09 17 22 -14 -9 1610 SPRITES\myloco.pcx 176 0 01 12 32 -16 -8 1611 SPRITES\myloco.pcx 224 0 09 17 22 -6 -9 1299 * 9 02 00 AA 01 01 00 00 00 00 1303 * 10 03 00 01 0C 00 AA 00 1304 * 23 04 00 1F 01 0C "My Locomotive (Diesel)" 00 1305 * 57 00 00 17 01 0C 12 FD 00 \w1-1-1960 // introdate 02 14 // reliability 03 \b20 // vehicle life 04 \b40 // class life 0D 88 // running cost 17 25 // purchase cost 19 08 // engine type 09 85 00 // speed 16 \b98 // weight 0B \w2000 // power 1F 41 // Tractive effort 1E 00 // callbacks 27 02 // flags 21 00 // shortened 0E 30 4C 00 00 // run cost base 05 00 // rail type 06 04 // climate 13 00 // doublehead 14 00 // capacity 15 00 // cargo 08 00 // AI passenger 18 20 // AI rank
