The paging file format is a composite one - a single file / stream can contain data which is not necessarily all read by a single class.
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The paging file format is a composite one - a single file / stream can contain data which is not necessarily all read by a single class.
Instead, data chunks can be read by different classes, allowing the format to be extended to different types smoothly.
- Paging world files have by default an extension ".world", but that is not a requirement. Internally, the only thing that matters is the data chunks and their identifiers, which are 4-character codes embedded in a uint32 as calculated by StreamSerialiser::makeIdentifier. All data will be read and written using DataStream and the StreamSerialiser class.
- Data types are expressed at the lowest level exposed by the StreamSerialiser class, which is used to read / write this file.
- Chunk Definitions
- PagedWorld (Identifier 'PWLD')
[Version 1]
| Name | Type | Description |
| World Name | char* | The name of the world - should be unique |
| PagedWorldSection List | Chunk List | A variable-length list of nested PagedWorldSection chunks |
- PagedWorldSection (Identifier 'PWSC')
[Version 1]
| Name | Type | Description |
| World Section Name | char* | The name of the world section - should be unique within world |
| Bounding box | AABB | AABB of this world section in world space |
| PageStrategy name | char* | The name of the PageStrategy class this world section uses to manage pages |
| Page Strategy Data | Nested Chunk | PageStrategy specific data for this world section |
- PagedStrategyData (Identifier defined by subclass)
[Version 1]
| Name | Type | Description |
| PageStrategy defined | ??? | This chunk will contain data as defined by the specific PageStrategyData used by the parent PagedWorldSection |
- Page (Identifier 'PAGE')
[Version 1]
| Name | Type | Description |
| Page ID | uint32 | The identifier of the page |
| PageContentCollection list | Nested chunk list | 1-n nested chunks of type PageContentCollection |
- PageContentCollection (Identifier 'PGCC')
[Version 1]
| Name | Type | Description |
| Factory name | char* | The name of the content collection factory |
| PageContentCollectionData chunk | Nested chunk | Data required to initialise & configure the content collection |
- PageContentCollectionData (Identifier defined by subclass)
[Version 1]
| Name | Type | Description |
| PageContentCollection subclass defined | ??? | This chunk will contain data as defined by the specific PageContentCollection subclass |
- PageContent (Identifier 'PGCN')
[Version 1]
| Name | Type | Description |
| Factory name | char* | The name of the content factory |
| PageContentData chunk | Nested chunk | Data required to initialise & configure the content |
- PageContentData (Identifier defined by subclass)
[Version 1]
| Name | Type | Description |
| PageContent subclass defined | ??? | This chunk will contain data as defined by the specific PageContent subclass |
1.9.8