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diff --git a/web/src/pages/docs/_texture-pack-format.md b/web/src/pages/docs/_texture-pack-format.md index 3575cfc..26274c2 100644 --- a/web/src/pages/docs/_texture-pack-format.md +++ b/web/src/pages/docs/_texture-pack-format.md @@ -719,6 +719,100 @@ Available options | `<extraComponent>.width` | false | The new width of the component | | `<extraComponent>.height` | false | The new height of the component | +## Text Replacements + +> [!WARNING] +> This syntax is _experimental_ and may be reworked with no backwards compatibility guarantees. If you have a use case for this syntax, please contact me so that I can figure out what kind of features are needed for the final version of this API. + +Firmament allows you to replace arbitrary texts with other texts during rendering. This only affects rendering, not what other mods see. + +To do this, place a text override in `firmskyblock:overrides/texts/<my-override>.json`: + +```json +{ + "match": { + "regex": ".*Strength.*" + }, + "replacements": [ + { + "match": "❁", + "replace": { + "text": "<newIcon>", + "color": "#ff0000" + } + } + ] +} +``` + +There are notably two separate "match" sections. This is important. The first (top-level) match checks against the entire text element, while the replacement match operates on each individual subcomponent. Let's look at an example: + +```json +{ + "italic": false, + "text": "", + "extra": [ + " ", + { + "color": "red", + "text": "❁ Strength " + }, + { + "color": "white", + "text": "510.45" + } + ] +} +``` + +In this the entire text rendered out looks like `" ❁ Strength 510.45"` and the top-level match (`".*Strength.*"`) needs to match that line. + +Then each replacement (in the `replacements` array) is matched against each subcomponent. +First, it tries to find `"❁"` in the empty root element `""`. Then it tries the first child (`" "`) and fails again. Then it tries the `"❁ Strength "` component and finds one match. It then splits the `"❁ Strength "` component into multiple subsubcomponents and replaces just the `❁` part with the one specified in the replacements array. Afterwards, it fails to match the `"510.45"` component and returns. + +Our finalized text looks like this: + +```json +{ + "italic": false, + "text": "", + "extra": [ + " ", + { + "color": "red", + "text": "", + "extra": [ + { + "text": "<newIcon>", + "color": "#ff0000" + }, + " Strength " + ] + }, + { + "color": "white", + "text": "510.45" + } + ] +} +``` + +Which rendered out looks like ` <newIcon> Strength 510.45`, with all colours original, except the `<newIcon>` which not only has new text but also a new colour. + +| Field | Required | Description | +|--------------------------------------|----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| `match` | yes | A top level [string matcher](#string-matcher). Allows for testing parts of the text unrelated to the replacement and improves performance. | +| `replacements` | yes | A list of replacements to apply to each part of the text | +| `replacements.*.match` | yes | A [string matcher](#string-matcher) substring to replace in each component of the text. Notabene: Unlike most string matchers, this one is not anchored to the beginning and end of the element, so if the entire component needs to be matched a regex with `^$` needs to be used. | +| `replacements.*.style` | yes | A vanilla [style](https://minecraft.wiki/w/Text_component_format#Java_Edition) (where only the fields `color`, `italic`, `bold`, `underlined`, `strikethrough` and `obfuscated` are set). Checks if this specific subcomponent is of the correct style | +| `replacements.*.style.color` | no | A vanilla color name (as set in a text) that checks that the subcomponent is of that colour. | +| `replacements.*.style.italic` | no | A boolean that can be set `true` or `false` to require this text to be italic or not. | +| `replacements.*.style.bold` | no | A boolean that can be set `true` or `false` to require this text to be bold or not. | +| `replacements.*.style.underlined` | no | A boolean that can be set `true` or `false` to require this text to be underlined or not. | +| `replacements.*.style.strikethrough` | no | A boolean that can be set `true` or `false` to require this text to be strikethrough or not. | +| `replacements.*.style.obfuscated` | no | A boolean that can be set `true` or `false` to require this text to be obfuscated or not. | +| `replacements.*.replace` | yes | A vanilla [text](https://minecraft.wiki/w/Text_component_format#Java_Edition) that is inserted to replace the substring matched in the match. If literal texts (not translated texts) are used, then `${name}` can be used to access named groups in the match regex (if a regex matcher was used). | + ## Global Item Texture Replacement |