Sort List Crash 2/3
Contents
Introduction
The sort lists in Crash 2/3 are for the most part similar to the ones found in Crash 1. Therefore it is recommended to read the extensive article about Sort Lists in Crash 1 first before reading this article.
Format
Item 1/Item N: Main Source/Target List
| Offset | Field | Size | Value |
|---|---|---|---|
| 0x0 | List Size (polygon ID count) | 2 bytes | c |
| 0x2 | List Type | 2 bytes | 0 |
| 0x4 | Polygon IDs | c x 2 bytes | * |
Polygon ID
Each Polygon ID has the following format:
*WWWSSPPPPPPPPPP
- W = index of world model
- S = state of the polygon
- P = index of polygon in world model
Since scenery entries in Crash 2/3 have lists for both triangles and quads, the polygon state is used to differentiate between an index for a triangle (SS = 0) and a quad (SS = 1-3).
The polygon state also specifies whether to fully draw the quad or only draw half of it. A quad can be conceived as a combination of two triangles (ABC and BCD respectively) into a single polygon (ABCD). when only triangle ABC should be drawn, SS=1. If only triangle BCD should be drawn, SS=2. If the entire quad needs to drawn, SS=3.
