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fix: infinite loop in Zone:randomPosition when no valid tile exist #3178

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merged 1 commit into from
Dec 14, 2024
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fix: infinite loop in Zone:randomPosition when no valid tile exist #3178

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22 changes: 17 additions & 5 deletions data/libs/systems/zones.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -15,12 +15,24 @@ function Zone:randomPosition()
logger.error("Zone:randomPosition() - Zone {} has no positions", self:getName())
return nil
end
local destination = positions[math.random(1, #positions)]
local tile = destination:getTile()
while not tile or not tile:isWalkable(false, false, false, false, true) do
destination = positions[math.random(1, #positions)]
tile = destination:getTile()

local validPositions = {}
for _, position in ipairs(positions) do
local tile = position:getTile()
if tile and tile:isWalkable(false, false, false, false, true) then
table.insert(validPositions, position)
else
logger.debug("Zone:randomPosition() - Position {} is invalid (Tile: {}, Walkable: {})", position, tile or "nil", tile and tile:isWalkable(false, false, false, false, true) or "false")
end
end

if #validPositions == 0 then
logger.error("Zone:randomPosition() - No valid positions in Zone {}", self:getName())
return nil
end

local destination = validPositions[math.random(1, #validPositions)]
logger.debug("Zone:randomPosition() - Selected valid position: {}", destination)
return destination
end

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