@jsprismarine/prismarine
Version:
Dedicated Minecraft Bedrock Edition server written in TypeScript
98 lines (97 loc) • 12.3 kB
JavaScript
import { getGametypeName } from "@jsprismarine/minecraft";
//#region src/utils/ParseTargetSelector.ts
/**
* Parse target selector argument.
*
* @remarks
* A target selector is made up of 3 parts:
*
* - First there's the `@` (at symbol) part,
* notifying us that this is in fact a target selector
*
* - Secondly there's the target selector type (`a`, `e`, `p`, `r`, `s`),
* this specifies what kind of entities we should query for
* and in what way.
*
* - Thirdly there's the arguments,
* they are split up in a comma-separated list in the
* argument=value format.
*
* This results in an input similar to:
* `@e[type=player,gamemode=creative,limit=3]`
*
* @returns The entities matching the target query
*/
var ParseTargetSelector = ({ input, entities, source }) => {
if (!input.startsWith("@")) throw new Error("input does not start with \"@\"");
let targets = entities;
const str = input.slice(1, input.length);
const type = str.split("[")[0];
const args = str.split("[")[1]?.split("]")[0].split(",").map((arg) => ({
argument: arg.split("=")[0],
value: arg.split("=")[1].replace("!", ""),
reverse: arg.split("=")[1].startsWith("!")
})) || [];
let limit = Number.MAX_SAFE_INTEGER, sort;
switch (type) {
case "a":
targets = targets.filter((entity) => entity.isPlayer());
sort = "arbitrary";
break;
case "e":
sort = "arbitrary";
break;
case "p":
limit = 1;
sort = "nearest";
break;
case "r":
limit = 1;
sort = "random";
break;
case "s":
limit = 1;
sort = "arbitrary";
targets = [source];
break;
default: throw new Error(`type "${type}" is invalid. Expected "a", "e", "p", "r" or "s"`);
}
args.forEach((filter) => {
switch (filter.argument) {
case "type":
if (filter.value.split(":").length === 1) targets = targets.filter((entity) => filter.reverse ? entity.getType().split(":")[1] !== filter.value : entity.getType().split(":")[1] === filter.value);
else targets = targets.filter((entity) => filter.reverse ? entity.getType() !== filter.value : entity.getType() === filter.value);
break;
case "name":
targets = targets.filter((entity) => filter.reverse ? entity.getName() !== filter.value : entity.getName() === filter.value);
break;
case "m":
case "gamemode":
targets = targets.filter((entity) => entity.isPlayer() && (filter.reverse ? getGametypeName(entity.gamemode).toLowerCase() !== filter.value.toLowerCase() : getGametypeName(entity.gamemode).toLowerCase() === filter.value.toLowerCase()));
break;
case "sort":
sort = filter.value;
break;
case "c":
case "limit":
limit = Number.parseInt(filter.value, 10);
break;
default: break;
}
});
switch (sort) {
case "nearest":
targets = source.getNearestEntity(targets.filter((entity) => entity.isPlayer()));
break;
case "random":
targets = [targets[Math.floor(Math.random() * targets.length)]];
break;
default: break;
}
targets = targets.slice(0, limit);
if (targets.length <= 0) throw new Error("no results");
return targets;
};
//#endregion
export { ParseTargetSelector as default };
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Expected \"a\", \"e\", \"p\", \"r\" or \"s\"`);\n    }\n\n    args.forEach((filter) => {\n        switch (filter.argument) {\n            case 'type':\n                if (filter.value.split(':').length === 1)\n                    targets = targets.filter((entity) =>\n                        filter.reverse\n                            ? entity.getType().split(':')[1] !== filter.value\n                            : entity.getType().split(':')[1] === filter.value\n                    );\n                else\n                    targets = targets.filter((entity) =>\n                        filter.reverse ? entity.getType() !== filter.value : entity.getType() === filter.value\n                    );\n                break;\n\n            case 'name':\n                targets = targets.filter((entity) =>\n                    filter.reverse ? entity.getName() !== filter.value : entity.getName() === filter.value\n                );\n                break;\n\n            case 'm': // Bedrock\n            case 'gamemode': // Java\n                targets = targets.filter(\n                    (entity) =>\n                        entity.isPlayer() &&\n                        (filter.reverse\n                            ? getGametypeName((entity as Player).gamemode).toLowerCase() !== filter.value.toLowerCase()\n                            : getGametypeName((entity as Player).gamemode).toLowerCase() === filter.value.toLowerCase())\n                );\n                break;\n\n            case 'sort':\n                sort = filter.value as any;\n                break;\n\n            case 'c': // Bedrock\n            case 'limit': // Java\n                limit = Number.parseInt(filter.value as any, 10);\n                break;\n\n            default:\n                break;\n        }\n    });\n\n    switch (sort) {\n        case 'nearest':\n            targets = source.getNearestEntity(targets.filter((entity) => entity.isPlayer()));\n            break;\n        case 'random':\n            // FIXME: respect limit filter\n            targets = [targets[Math.floor(Math.random() * targets.length)]!];\n            break;\n        // TODO: case 'arbitrary':\n        default:\n            break;\n    }\n\n    targets = targets.slice(0, limit);\n    if (targets.length <= 0) throw new Error('no results');\n    return targets;\n};\n\nexport default ParseTargetSelector;\n"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;AA0BA,IAAM,uBAAuB,EACzB,OACA,UACA,aAKY;CACZ,IAAI,CAAC,MAAM,WAAW,GAAG,GAAG,MAAM,IAAI,MAAM,iCAA+B;CAE3E,IAAI,UAAoB;CAGxB,MAAM,MAAM,MAAM,MAAM,GAAG,MAAM,MAAM;CAGvC,MAAM,OAAoC,IAAI,MAAM,GAAG,EAAE;CAIzD,MAAM,OACF,IACK,MAAM,GAAG,EAAE,IACV,MAAM,GAAG,EAAE,GACZ,MAAM,GAAG,EACT,KAAK,SAAS;EACX,UAAU,IAAI,MAAM,GAAG,EAAE;EACzB,OAAO,IAAI,MAAM,GAAG,EAAE,GAAI,QAAQ,KAAK,EAAE;EACzC,SAAS,IAAI,MAAM,GAAG,EAAE,GAAI,WAAW,GAAG;CAC9C,EAAE,KAAK,CAAC;CAGhB,IAAI,QAAQ,OAAO,kBACf;CAGJ,QAAQ,MAAR;EACI,KAAK;GACD,UAAU,QAAQ,QAAQ,WAAW,OAAO,SAAS,CAAC;GACtD,OAAO;GACP;EACJ,KAAK;GACD,OAAO;GACP;EACJ,KAAK;GACD,QAAQ;GACR,OAAO;GACP;EACJ,KAAK;GACD,QAAQ;GACR,OAAO;GACP;EACJ,KAAK;GACD,QAAQ;GACR,OAAO;GACP,UAAU,CAAC,MAAM;GACjB;EACJ,SACI,MAAM,IAAI,MAAM,SAAS,KAAK,iDAAiD;CACvF;CAEA,KAAK,SAAS,WAAW;EACrB,QAAQ,OAAO,UAAf;GACI,KAAK;IACD,IAAI,OAAO,MAAM,MAAM,GAAG,EAAE,WAAW,GACnC,UAAU,QAAQ,QAAQ,WACtB,OAAO,UACD,OAAO,QAAQ,EAAE,MAAM,GAAG,EAAE,OAAO,OAAO,QAC1C,OAAO,QAAQ,EAAE,MAAM,GAAG,EAAE,OAAO,OAAO,KACpD;SAEA,UAAU,QAAQ,QAAQ,WACtB,OAAO,UAAU,OAAO,QAAQ,MAAM,OAAO,QAAQ,OAAO,QAAQ,MAAM,OAAO,KACrF;IACJ;GAEJ,KAAK;IACD,UAAU,QAAQ,QAAQ,WACtB,OAAO,UAAU,OAAO,QAAQ,MAAM,OAAO,QAAQ,OAAO,QAAQ,MAAM,OAAO,KACrF;IACA;GAEJ,KAAK;GACL,KAAK;IACD,UAAU,QAAQ,QACb,WACG,OAAO,SAAS,MACf,OAAO,UACF,gBAAiB,OAAkB,QAAQ,EAAE,YAAY,MAAM,OAAO,MAAM,YAAY,IACxF,gBAAiB,OAAkB,QAAQ,EAAE,YAAY,MAAM,OAAO,MAAM,YAAY,EACtG;IACA;GAEJ,KAAK;IACD,OAAO,OAAO;IACd;GAEJ,KAAK;GACL,KAAK;IACD,QAAQ,OAAO,SAAS,OAAO,OAAc,EAAE;IAC/C;GAEJ,SACI;EACR;CACJ,CAAC;CAED,QAAQ,MAAR;EACI,KAAK;GACD,UAAU,OAAO,iBAAiB,QAAQ,QAAQ,WAAW,OAAO,SAAS,CAAC,CAAC;GAC/E;EACJ,KAAK;GAED,UAAU,CAAC,QAAQ,KAAK,MAAM,KAAK,OAAO,IAAI,QAAQ,MAAM,EAAG;GAC/D;EAEJ,SACI;CACR;CAEA,UAAU,QAAQ,MAAM,GAAG,KAAK;CAChC,IAAI,QAAQ,UAAU,GAAG,MAAM,IAAI,MAAM,YAAY;CACrD,OAAO;AACX"}