SC4Path
SC4Path files define where the game's automata (Sims, vehicles and trains) travel on transit networks. These files are associated with a corresponding gridsquare containing a transit network by a file ending in the same instance ID (IID) as that of the particular network piece involved. An ortho section of road, for instance, which ends in IID 0x00004b00 has a matching SC4Path file ending in that same IID. For puzzle pieces, the SC4Path has the same IID as the corresponding Exemplar file in the piece.
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Contents
Path File Sections
Header
The header specifies the path "version", the number of paths contained within, and the number of StopPaths. Here is a sample header:
SC4PATHS
1.1 -Version Number (1.0, 1.1 or 1.2)
4 -Number of Paths
0 -Number of StopPaths
0 -3D Key
Path Stanzas
StopPaths
Stop paths tell automata where to stop when a vehicule is crossing the path ahead, this is used at intersections to prevent collisions.
Troubleshooting with the DrawPaths Cheat
The SC4_Extra_Cheats.dll contains a very useful cheat called 'DrawPaths'. This cheat draws arrows showing the direction and location of paths on all network tiles. Typing a number after the cheat can limit the paths drawn. Path will flash Red-White when their Entry/Exit points don't match the coordinates of the path, making testing the paths much easier than before when testers had to UDI through the tile on all possible paths. Stop Paths also appear as red crosses.
Lag issues
If a path file is not included for a transit network it will cause the game to lag when dragging the network, this can be avoided by using a path file which contains no paths, but still has a header.
Daeley's SC4Path Creator
BSC member Daeley has created a tool to create and edit SC4Path files called SC4 Path Creator
The tool is currently in version 1.60.
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