refactor: rename PackedCounter to EncodedLengths (#2490)

.changeset/weak-rules-lick.md

@@ -0,0 +1,10 @@
+---
+"@latticexyz/cli": patch
+"@latticexyz/protocol-parser": patch
+"@latticexyz/store": major
+"@latticexyz/world-modules": patch
+"@latticexyz/world": major
+"create-mud": patch
+---
+
+Renamed `PackedCounter` to `EncodedLengths` for consistency.

docs/pages/guides/extending-a-world.mdx

@@ -464,7 +464,7 @@ The easiest way to create the Solidity code is to use the MUD template:
    Word 0 shows us that this field's value starts at `0x60`, which is word 3.
    Because there are no static fields, word 3 is all zeros.
 
-   Word 1 is a [`PackedCounter`](https://github.com/latticexyz/mud/blob/main/packages/store/src/PackedCounter.sol) with the lengths of the dynamic fields.
+   Word 1 is a [`EncodedLengths`](https://github.com/latticexyz/mud/blob/main/packages/store/src/EncodedLengths.sol) with the lengths of the dynamic fields.
    Here is the interpretation.
 
    | Bytes |            Value | Meaning                                                                     |
@@ -476,7 +476,7 @@ The easiest way to create the Solidity code is to use the MUD template:
    | 26-22 |     `0000000000` | The length of the (non-existent in `Messages`) fourth dynamic field is zero |
    | 31-27 |     `0000000000` | The length of the (non-existent in `Messages`) fifth dynamic field is zero  |
 
-   MUD tables can only have up to five dynamic fields because `PackedCounter` needs to fit in a 32 byte word.
+   MUD tables can only have up to five dynamic fields because `EncodedLengths` needs to fit in a 32 byte word.
 
    Word 2 shows us that the field with the dynamic lengths starts at byte 0x80, which is word 4.
    Word 4 gives us the length of the string.

docs/pages/store/encoding.mdx

@@ -275,14 +275,14 @@ Example: encoded static data of a table with a `uint64` and a `uint40` field.
 
 ## Dynamic length data
 
-### Encoded lengths (`PackedCounter`)
+### Encoded lengths (`EncodedLengths`)
 
 Tables can have up to five dynamic length fields, each of which has a maximum size of `2**40` (~1 trillion) bytes.
 This makes it possible to pack the lengths of all dynamic length fields of a table in a single `bytes32` word, instead of prefixing each dynamic length field with 32 bytes to store its length.
 
-The data structure to store the lengths of all dynamic length fields is called `PackedCounter`.
+The data structure to store the lengths of all dynamic length fields is called `EncodedLengths`.
 
-Example: `PackedCounter` with 5 fields.
+Example: `EncodedLengths` with 5 fields.
 
 ```
 0x 0000000000000F 0000000001 0000000002 0000000003 0000000004 0000000005
@@ -353,7 +353,7 @@ function _getStaticDataLocation(ResourceId tableId, bytes32[] memory keyTuple) i
 }
 ```
 
-The [encoded lengths](#encoded-lengths-packedcounter) of all dynamic length fields is stored in a single storage slot, which is determined by a hash of the table ID and the key tuple.
+The [encoded lengths](#encoded-lengths-encodedlengths) of all dynamic length fields is stored in a single storage slot, which is determined by a hash of the table ID and the key tuple.
 
 ```solidity
 function _getDynamicDataLengthLocation(ResourceId tableId, bytes32[] memory keyTuple) internal pure returns (uint256) {
@@ -376,7 +376,7 @@ function _getDynamicDataLocation(
 
 ## Events
 
-Data emitted as part of events uses the same encoding for [static length data](#static-length-data), [encoded lengths](#encoded-lengths-packedcounter) and [dynamic length data](#dynamic-length-data-encoding) as described above.
+Data emitted as part of events uses the same encoding for [static length data](#static-length-data), [encoded lengths](#encoded-lengths-encodedlengths) and [dynamic length data](#dynamic-length-data-encoding) as described above.
 
 Unlike the [layout in storage](#storage-layout), where each dynamic length data field is stored in its own storage location, in events all data of dynamic length fields is concatenated to a single `bytes` blob.
 The encoded lengths emitted as part of the event contain the information required to slice up this concatenated `bytes` blob into the individual fields.

docs/pages/store/reference/misc.mdx

@@ -1616,7 +1616,7 @@ From left to right, the bytes are laid out as follows:
 - 1 byte for number of static size fields
 - 1 byte for number of dynamic size fields
 - 28 bytes for 28 static field lengths
-  (MAX_DYNAMIC_FIELDS allows PackedCounter to pack the dynamic lengths into 1 word)\*
+  (MAX_DYNAMIC_FIELDS allows EncodedLengths to pack the dynamic lengths into 1 word)\*
 
 ```solidity
 type FieldLayout is bytes32;
@@ -2476,7 +2476,7 @@ uint256 constant MAX_STATIC_FIELDS = 28;
 
 #### MAX_DYNAMIC_FIELDS
 
-_Represents the maximum number of dynamic fields that can be packed in a PackedCounter._
+_Represents the maximum number of dynamic fields that can be packed in EncodedLengths._
 
 ```solidity
 uint256 constant MAX_DYNAMIC_FIELDS = 5;