fix(ctb): LibGameType downcast fix

packages/contracts-bedrock/semver-lock.json

@@ -36,7 +36,7 @@
     "sourceCodeHash": "0xd3450653cecc14bf8fbc21f2fa9b4a5fde348c2b6313d72e74e08666201295a2"
   },
   "src/L1/OptimismPortal2.sol": {
-    "initCodeHash": "0x428eb70b0212733b6271d885741da959ba95e310bf963ead9f7e93a6846eb9ea",
+    "initCodeHash": "0x12407ad2db89ab758460e1cbd93bdc61fc3c30b20acab6ab61c96c51767c16f6",
     "sourceCodeHash": "0x1cd093d048b893846319bc242c8dd5744de1f675e87551de423e0ae4ab3216e1"
   },
   "src/L1/ProtocolVersions.sol": {
@@ -108,8 +108,8 @@
     "sourceCodeHash": "0xba941ad1f941f5a4a066182d50634fa9b190085ed82779decef71c019ba963c5"
   },
   "src/dispute/DisputeGameFactory.sol": {
-    "initCodeHash": "0xcbf28ecd117cbcbb9cea34dd75d2d0afbdc42865311b6fa94f23958c26186ab3",
-    "sourceCodeHash": "0x08f34cec56d58ea6ee7a47b5adcbeca6a68a5dd1daa949330b4bde86c2e605f5"
+    "initCodeHash": "0x3d65d1afd2ba6cd7ebb194859390579fd5dd95c1e18ca9a74f00d95a3a4de4fa",
+    "sourceCodeHash": "0xc4dbd17217b63f8117f56f78c213e57dda304fee7577fe296e1d804ebe049542"
   },
   "src/dispute/FaultDisputeGame.sol": {
     "initCodeHash": "0x42c04ec50860cf8f1f772bc77dcbd20e7e06554a0962d16eaad2ee5fd748cfe0",

packages/contracts-bedrock/src/dispute/DisputeGameFactory.sol

@@ -23,8 +23,8 @@ contract DisputeGameFactory is OwnableUpgradeable, IDisputeGameFactory, ISemver
     using LibClone for address;
 
     /// @notice Semantic version.
-    /// @custom:semver 0.5.0
-    string public constant version = "0.5.0";
+    /// @custom:semver 0.6.0
+    string public constant version = "0.6.0";
 
     /// @inheritdoc IDisputeGameFactory
     mapping(GameType => IDisputeGame) public gameImpls;

packages/contracts-bedrock/src/dispute/lib/LibUDT.sol

@@ -115,10 +115,10 @@ library LibVMStatus {
 /// @title LibGameType
 /// @notice This library contains helper functions for working with the `GameType` type.
 library LibGameType {
-    /// @notice Get the value of a `GameType` type in the form of the underlying uint8.
+    /// @notice Get the value of a `GameType` type in the form of the underlying uint32.
     /// @param _gametype The `GameType` type to get the value of.
-    /// @return gametype_ The value of the `GameType` type as a uint8 type.
-    function raw(GameType _gametype) internal pure returns (uint8 gametype_) {
+    /// @return gametype_ The value of the `GameType` type as a uint32 type.
+    function raw(GameType _gametype) internal pure returns (uint32 gametype_) {
         assembly {
             gametype_ := _gametype
         }

packages/contracts-bedrock/src/libraries/DisputeTypes.sol

@@ -45,13 +45,13 @@ type Timestamp is uint64;
 /// @dev Unit: seconds
 type Duration is uint64;
 
-/// @notice A `GameId` represents a packed 1 byte game ID, an 11 byte timestamp, and a 20 byte address.
+/// @notice A `GameId` represents a packed 4 byte game ID, a 8 byte timestamp, and a 20 byte address.
 /// @dev The packed layout of this type is as follows:
 /// ┌───────────┬───────────┐
 /// │   Bits    │   Value   │
 /// ├───────────┼───────────┤
-/// │ [0, 8)    │ Game Type │
-/// │ [8, 96)   │ Timestamp │
+/// │ [0, 32)   │ Game Type │
+/// │ [32, 96)  │ Timestamp │
 /// │ [96, 256) │ Address   │
 /// └───────────┴───────────┘
 type GameId is bytes32;

packages/contracts-bedrock/test/dispute/DisputeGameFactory.t.sol

@@ -32,7 +32,7 @@ contract DisputeGameFactory_Create_Test is DisputeGameFactory_Init {
     /// @dev Tests that the `create` function succeeds when creating a new dispute game
     ///      with a `GameType` that has an implementation set.
     function testFuzz_create_succeeds(
-        uint8 gameType,
+        uint32 gameType,
         Claim rootClaim,
         bytes calldata extraData,
         uint256 _value
@@ -74,7 +74,7 @@ contract DisputeGameFactory_Create_Test is DisputeGameFactory_Init {
 
     /// @dev Tests that the `create` function reverts when creating a new dispute game with an incorrect bond amount.
     function testFuzz_create_incorrectBondAmount_reverts(
-        uint8 gameType,
+        uint32 gameType,
         Claim rootClaim,
         bytes calldata extraData
     )
@@ -110,7 +110,7 @@ contract DisputeGameFactory_Create_Test is DisputeGameFactory_Init {
     }
 
     /// @dev Tests that the `create` function reverts when there exists a dispute game with the same UUID.
-    function testFuzz_create_sameUUID_reverts(uint8 gameType, Claim rootClaim, bytes calldata extraData) public {
+    function testFuzz_create_sameUUID_reverts(uint32 gameType, Claim rootClaim, bytes calldata extraData) public {
         // Ensure that the `gameType` is within the bounds of the `GameType` enum's possible values.
         GameType gt = GameType.wrap(uint8(bound(gameType, 0, 2)));
         // Ensure the rootClaim has a VMStatus that disagrees with the validity.
@@ -195,7 +195,7 @@ contract DisputeGameFactory_SetInitBond_Test is DisputeGameFactory_Init {
 contract DisputeGameFactory_GetGameUUID_Test is DisputeGameFactory_Init {
     /// @dev Tests that the `getGameUUID` function returns the correct hash when comparing
     ///      against the keccak256 hash of the abi-encoded parameters.
-    function testDiff_getGameUUID_succeeds(uint8 gameType, Claim rootClaim, bytes calldata extraData) public {
+    function testDiff_getGameUUID_succeeds(uint32 gameType, Claim rootClaim, bytes calldata extraData) public {
         // Ensure that the `gameType` is within the bounds of the `GameType` enum's possible values.
         GameType gt = GameType.wrap(uint8(bound(gameType, 0, 2)));
 
@@ -328,7 +328,7 @@ contract DisputeGameFactory_FindLatestGames_Test is DisputeGameFactory_Init {
 
         // Create `_numGames` dispute games, with at least `_numSearchedGames` games.
         for (uint256 i; i < _numGames; i++) {
-            uint8 gameType = i < _numSearchedGames ? 0 : 1;
+            uint32 gameType = i < _numSearchedGames ? 0 : 1;
             disputeGameFactory.create(GameType.wrap(gameType), Claim.wrap(bytes32(i)), abi.encode(i));
         }