[Oxyd] Units fail to pathfind if starting close to cliff

[Earendel]

If a unit is given a go_to_location order but it's starting location is close to a cliff then the pathfinding efforts can immediately fail. This includes a cases where the unit is not overlapping the cliff collision box so should be able to move freely. This is especially important for modded non enemy units, but happens in vanilla too.

To recreate:
Map exchange string:

Code: Select all

>>>eNpjYBAAQhYGZmYeluT8xBxmZmau5PyCgtQi3fyiVCCPM7moNCVV
Nz8TJMWWklqcWlQCZLGkZIJprtS81NxK3aTEYpBi1vSixOJiIIMjsyg
/D2oCS3FiXgpIsrgkPw+sqqQoNRWkiru0KDEvszQXqpCBUeXDhh8ODA
wMIPy/nsHg/38QBrIuAAVAGAiAyoACMMCanJOZlvaBQcEBhBkZGatF1
rk/rJpizwiR13OAMj5ARSJ2Q0UetEIZEauhjI7DUIbDfBijHsbod2A0
BoPP9ggGxK4SoMlQSzgcEAyIZAtIkpGx9+3WBd+PXbBj/LPy4yXfpAR
7xkzZUF+B0vd2QEl2oAZGJjgxayYI7IT5gAFm5gN7qNRNe8azZ0DgjT
0jK0iHCIhwsAASB7yBwSPAB2Qt6AESCjIMMKfZwYwRcWBMA4NvMJ88h
jEu26P7Q8WB0QZkuByIOAEiwBbCXcYIZUY6QCQkEbJArUYMyNanIDx3
EmbjYSSr0dygAnODiQMWL6CJqCAFPBfInhQ48YIZ7ghgCF5gh/GAccv
MgAAf7D3UDigBAM1BkvY=<<<

Console code to spawn biter and issue go_to_location command.

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/c s = game.player.surface n = s.create_entity{name = "big-biter", position={-21.5, 9.5}, force=game.player.force} 
n.set_command({ type= defines.command.go_to_location, destination= {0,0}, distraction= defines.distraction.none})

[Oxyd]

Thanks, this will be fixed in 0.16.21.