BlendData

A parsed file: its blocks, its catalogue, and the maps from an address to a block.

class BlendData

import { BlendData } from '@driftengine/assets';

Constructor

`new`

constructor(bytes: Uint8Array)

Parameter	Type	Description
`bytes`	`Uint8Array`

Properties

Name	Type	Description
`header`readonly	`BlendHeader`
`bytes`readonly	`Uint8Array`
`view`readonly	`DataView`
`blocks`readonly	`readonly BlendBlock[]`
`structs`readonly	`readonly DnaStruct[]`

Methods

`struct`

struct(type: string): DnaStruct | undefined

The catalogue entry for a struct type, or undefined where this file's Blender had none.

Parameter	Type	Description
`type`	`string`

`scopeOf`

scopeOf(block: number): number

The datablock a block's data belongs to, which is what scopes every pointer inside it.

Parameter	Type	Description
`block`	`number`

`find`

find(address: bigint, scope: number): { block: number; offset: number; } | null

The block an address falls in, and how far into it, as seen from inside datablock scope.

Parameter	Type	Description
`address`	`bigint`
`scope`	`number`

The datablock's own data first, then the datablocks themselves, which is the order Blender's reader resolves in. Null for an address nothing holds.

`idsOf`

idsOf(code: string): BlendStruct[]

Every datablock of a two-letter code — OB, ME, MA — as views of their own struct.

Parameter	Type	Description
`code`	`string`

`at`

at(address: bigint, scope: number, type?: string): BlendStruct | null

A view of the struct at an address, typed by the block that holds it or by type.

Parameter	Type	Description
`address`	`bigint`
`scope`	`number`
`type?`	`string`

`array`

array(address: bigint, scope: number, type: string, count?: number): BlendStruct[]

The structs of an array a pointer names, indexed inside its block.

Parameter	Type	Description
`address`	`bigint`
`scope`	`number`
`type`	`string`
`count?`	`number`

Never by adding to the address. From 5.0 an address is a placeholder rather than a location, so base + 24 is not the second element and can be exactly the address of some unrelated block.

`raw`

raw(address: bigint, scope: number): Uint8Array | null

The raw bytes a pointer names, through the end of its block.

Parameter	Type	Description
`address`	`bigint`
`scope`	`number`

`text`

text(address: bigint, scope: number): string

A zero-terminated string a char * names.

Parameter	Type	Description
`address`	`bigint`
`scope`	`number`

`blockOf`

blockOf(address: bigint, scope: number): BlendBlock | null

The block a pointer names, for its count and its catalogue type.

Parameter	Type	Description
`address`	`bigint`
`scope`	`number`

`pointer`

pointer(at: number): bigint

Parameter	Type	Description
`at`	`number`