Difference between revisions of "NML:GRF parameters"
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| + | #REDIRECT [[NML:GRF]] |
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| − | {{NMLNavBlocksyntax}} |
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| − | As part of the grf block you can specify some parameter settings that the user will be able to change as part of the newgrf configuration. These can for example be used to disable parts of your NewGRF or to change between multiple graphics in case that's not possible at runtime. In general the settings (sub-)block looks like |
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| − | param { |
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| − | <name> { |
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| − | type: <type>; |
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| − | name: <string>; |
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| − | desc: <string>; |
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| − | min_value: <expression>; |
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| − | max_value: <expression>; |
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| − | def_value: <expression>; |
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| − | names: { |
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| − | 0: <string>; |
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| − | 1: <string>; |
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| − | . |
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| − | . |
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| − | . |
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| − | }; |
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| − | } |
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| − | } |
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| − | Looking at the single entries: |
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| − | type |
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| − | This defines the parameter type. Possible values are <code style="color:darkgreen">bool</code> for on/off statements or <code style="color:darkgreen">int</code> for positive integer values |
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| − | name |
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| − | This gives the parameter name as shown in the parameter configuration dialogue of OpenTTD. |
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| − | desc |
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| − | This gives the description which is displayed when the parameter is selected. Here you can explain the meaning and impact it will have |
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| − | min_value |
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| − | The minimum acceptable value for the parameter (makes only sense for type int) |
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| − | max_value |
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| − | The maximum acceptable value for the parameter (makes only sense for type int) |
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| − | def_value |
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| − | This sets the default value for this parameter. If left out, the default value of 0 will be used. |
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| − | names |
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| − | If you chose type <code style="color:darkgreen">int</code> and the numbers themselves are only used internally, have no direct numerical meaning and are better explained in words, you can use this to associate the single numbers with a string which describes it and is shown to the user instead of the value. A simple example: |
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| − | <pre style="color:blue"> |
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| − | param { |
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| − | param_provide { |
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| − | type: int; |
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| − | name: string(STR_PARAM_PROVIDE); |
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| − | desc: string(STR_PARAM_PROVIDE_DESC); |
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| − | min_value: 0; |
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| − | max_value: 1; |
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| − | def_value: 0; |
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| − | names: { |
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| − | 0: string(STR_PARAM_PROVIDE_ENGINES_AND_WAGONS); |
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| − | 1: string(STR_PARAM_PROVIDE_WAGONS_ONLY); |
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| − | }; |
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| − | } |
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| − | </pre> |
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Latest revision as of 00:39, 9 September 2011
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