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Build Types (components) from a YAML file
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| import haxe.macro.Expr; | |
| import haxe.macro.Context; | |
| import yaml.Yaml; | |
| import yaml.Parser; | |
| import yaml.util.ObjectMap; | |
| class BuildComponents { | |
| macro static public function build():Array<Field> { | |
| var data:AnyObjectMap = Yaml.read("components.yaml"); | |
| var fields = Context.getBuildFields(); | |
| var pos = Context.currentPos(); | |
| for(componentName in data.keys()) { | |
| var newArgs:Array<haxe.macro.FunctionArg> = new Array(); | |
| var compFields:Array<Field> = new Array(); | |
| var component:AnyObjectMap = data.get(componentName); | |
| var block:Array<haxe.macro.Expr> = []; | |
| for(f in component.keys()) { | |
| var type = component.get(f); | |
| var tpath = TPath({name: type, pack: [], params: []}); | |
| newArgs.push({name:"_" + f, type:tpath, opt:false}); | |
| compFields.push({kind: FVar(tpath, null), | |
| meta: [], | |
| name: f, | |
| pos: pos, | |
| access: [APublic]}); | |
| block.push(macro $i{f} = $i{"_" + f}); | |
| } | |
| compFields.push({kind: FFun({args: newArgs, | |
| expr: {expr: EBlock(block), | |
| pos: pos}, | |
| params: [], | |
| ret: null}), | |
| name: "new", | |
| pos: pos, | |
| access: [APublic]}); | |
| Context.defineType({ | |
| pos: pos, | |
| params: [], | |
| pack: [], | |
| name: componentName, | |
| fields: compFields, | |
| isExtern: false, | |
| meta: [], | |
| kind: TDClass(null, [], false)}); | |
| } | |
| return fields; | |
| } | |
| } |
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| PositionComponent: | |
| x: Int | |
| y: Int | |
| DescriptionComponent: | |
| name: String | |
| text: String |
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| import BuildComponents; | |
| @:build(BuildComponents.build()) | |
| class Main { | |
| public function new() { | |
| var pos = new PositionComponent(100, 200); | |
| trace(pos.x); | |
| trace(pos.y); | |
| var weaponDescr = new DescriptionComponent("Sword", "Very pain!"); | |
| trace(weaponDescr.name); | |
| trace(weaponDescr.text); | |
| } | |
| public static function main() { | |
| new Main(); | |
| } | |
| } |
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