A big wagon or beast gets stuck in a doorway that a person walks through

Routes planned for a small character send a wide animal or cart into gaps it cannot fit through, and it jams. Here is how to plan for the body size, and why the answer for a big unit may be a very different, longer road.

Why this works

A route made for a point says nothing about a body that fills a whole square. Treat each stop as the corner of that square and call it valid only if every cell under it is free, and the ordinary search can no longer squeeze a big unit through a small gap.

When not to use it

Don't plan per size when all units are about the same, or when big ones can squash through, crouch or fold up. One shared route is simpler. Also remember that a big unit may have no route at all, so give it a plan for that.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• A diagram of every state
• 32 lines of example code with 4 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "A big wagon or beast gets stuck in a doorway that a person walks through" (read_entry survival-wide-unit-passage-check) in my game. Build it step by step, and show me how you checked that it works.

Or skip this and connect the MCP: your AI then finds all of this by itself.Connect the MCP