diff --git a/types/ecs.d.ts b/types/ecs.d.ts
index 24b6eb3..ea376a2 100644
--- a/types/ecs.d.ts
+++ b/types/ecs.d.ts
@@ -89,6 +89,8 @@ export function createWorld(worldId?: number): World;
  * @returns {Entity} the created entity
  */
 export function createEntity(world: World): Entity;
+export function getEntityId(world: any, entity: any): any;
+export function getEntityById(world: any, entityId: any): any;
 /**
  * Adds a component to the entity
  * @param {World} world world where listener will be invoked
@@ -191,6 +193,8 @@ export function cleanup(world: World): void;
 declare namespace _default {
     export { createWorld };
     export { createEntity };
+    export { getEntityId };
+    export { getEntityById };
     export { addComponentToEntity };
     export { removeComponentFromEntity };
     export { getEntities };
diff --git a/types/ecs.d.ts.map b/types/ecs.d.ts.map
index 66a11f6..83017c8 100644
--- a/types/ecs.d.ts.map
+++ b/types/ecs.d.ts.map
@@ -1 +1 @@
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\ No newline at end of file
+{"version":3,"file":"ecs.d.ts","sourceRoot":"","sources":["../ecs.js"],"names":[],"mappings":"AAOA;;GAEG;AAEH;;GAEG;AAEH;;;;GAIG;AAEH;;GAEG;AAEH;;GAEG;AAEH;;;;;;;;GAQG;AAEH;;;;;GAKG;AAEH;;GAEG;AAEH;;GAEG;AAEH;;;;GAIG;AAEH;;GAEG;AAEH;;;;;GAKG;AAEH;;;;;;;;;;;;;;;GAeG;AAEH;;;;;;;;GAQG;AAEH;;;;;;GAMG;AACH,sCAHW,MAAM,GACJ,KAAK,CAmEjB;AAGD;;;;GAIG;AACH,oCAHW,KAAK,GACH,MAAM,CAclB;AAGD,0DAEC;AAGD,8DAEC;AAGD;;;;;;;GAOG;AACH,4CANW,KAAK,UACL,MAAM,iBACN,MAAM,kBACN,SAAS,GACP,IAAI,CA+BhB;AAGD;;;;;;;GAOG;AACF,iDANU,KAAK,UACL,MAAM,iBACN,MAAM,oBACN,OAAO,GACL,IAAI,CAiBhB;AAGD;;;;;;GAMG;AACF,oCALU,KAAK,UACL,MAAM,oBACN,OAAO,GACL,IAAI,CAmBhB;AAGD;;;;;;;;;;;;;GAaG;AACH,mCAZW,KAAK,kBACL,MAAM,EAAE,iBAKR,YAAY,sCAIV,MAAM,EAAE,CAwCpB;AAGD;;;;;;;;;GASG;AACH,iCARW,KAAK,kBACL,MAAM,EAAE,GAKN,MAAM,GAAC,IAAI,CAIvB;AA8BD;;;;GAIG;AACH,iCAHW,KAAK,MACL,cAAc,QA+BxB;AAED;;;;GAIG;AACH,sCAHW,KAAK,MACL,MAAM,QAUhB;AAGD;;;;GAIG;AACH,mCAHW,KAAK,MACL,MAAM,QAUhB;AAED;;;;GAIG;AACH,uCAHW,KAAK,MACL,MAAM,QAUhB;AAGD;;;;GAIG;AACH,iCAHW,KAAK,MACL,MAAM,QAUhB;AAED;;;;GAIG;AACH,8BAHW,KAAK,MACL,MAAM,QAUhB;AAED;;;;GAIG;AACH,kCAHW,KAAK,MACL,MAAM,QAUhB;AA0HD;;;GAGG;AACH,+BAFW,KAAK,QAyDf;;;;;;;;;;;;;;;;;;;;;2BAprBa,OAAO,GAAG,SAAS;wBAInB,GAAG;;;;iCAUH,MAAM,EAAE;wCAIH,MAAM,KAAK,IAAI;;uBAKxB,oBAAoB;oBACpB,oBAAoB;wBACpB,oBAAoB;kBACpB,oBAAoB;eACpB,oBAAoB;mBACpB,oBAAoB;;qCAKjB,KAAK,KAAK,MAAM;;;;;;WAenB,WAAW;aACX,WAAW;;;;;;;;;cASX,MAAM,EAAE;;;;;gBACR,MAAM,EAAE;;;iBAMR,MAAM;;;;;;;;;;;;;;cAIL,MAAM;qBACC,MAAM;;;;;;;;;mBAKd,MAAM;;;;kBAEN,MAAM;;;cAKN,MAAM,EAAE;aACR,SAAS;aACT,MAAM,EAAE;eACR,iBAAiB;sBACjB,kBAAkB;WAClB,UAAU"}
\ No newline at end of file