#need example on pathfinding
random notch
Here's what I got, but doesn't find a path to the target:
```control.lua
---@param goal MapPosition
local function findPathToTarget(goal)
local player = game.players[1]
if not player.character then return end
player.surface.request_path {
bounding_box = player.character.prototype.collision_box,
collision_mask = player.character.prototype.collision_mask,
start = player.position,
goal = goal,
force = player.force,
radius = 4,
pathfind_flags = {
cache = false,
low_priority = false,
allow_failed_to_start = true,
allow_failed_to_finish = true
},
id = player.index
}
end
It always returns the `event` without a `path` property.
dusty dome
does it error or not return anything
random notch
it returns the event without erroring, but the event has no path indicating it didn't found a path.
eg: {"name":134,"tick":3603,"id":1,"try_again_later":false}
dusty dome
do you have a listener for on_script_path_request_finished yet?
random notch
yep, that is where I'm getting the event without the path
dusty dome
it returns nil if pathfinding failed according to the API
random notch
how can I debug this?
I mean, there is no further details on why it failed
The scenario I'm trying is:
- load the game
- get player position
- get nearest iron ore position
- check if iron ore was found
- request a path from player to iron ore
dusty dome
what does your control.lua file look like
random notch
Here it is and the other modules required by it.
random notch
I've pushed my drafts here for ease of navigation:
I've also tried to find a path to a known unblocked point { x = 10, y = 10 } because I thought collision would be the problem, but the event still comes without a path and so collision is not the thing I guess...
random notch
I think I got it.
I believe I need only to call player.surface.find_non_colliding_position for the positions passed to player.surface.request_path...
But I don't fully understand why, since testing without any obstacles the path is still not calculated.
dusty dome
not sure, feels a little weird