Properly bubble up the max fitness because some calculations use it.

pool.lua

@@ -732,7 +732,6 @@ local function mainLoop(currentSpecies, topGenome)
 				table.insert(slice, pool.species[i])
 			end
 		end
-		local finished = 0
 
 		return runner.run(
 			slice,
@@ -741,7 +740,11 @@ local function mainLoop(currentSpecies, topGenome)
 				-- Genome callback
 				-- FIXME Should we do something here??? What was your plan, past me?
 			end
-		):next(function()
+		):next(function(maxFitness)
+			if maxFitness > pool.maxFitness then
+				pool.maxFitness = maxFitness
+			end
+
 			if hasThreads then
 				currentSpecies = currentSpecies + #slice
 			else

runner-process.lua

@@ -124,9 +124,10 @@ local function waitLoop(inputLine)
                     speciesId = speciesId,
                 })
             end
-        ):next(function()
+        ):next(function(maxFitness)
             writeResponse({
                 type = 'onFinish',
+                maxFitness = maxFitness,
                 speciesId = speciesId,
             })
         end)

runner-wrapper.lua

@@ -174,6 +174,7 @@ return function(promise)
 
             message(_M, 'Waiting for child processes to finish')
 
+            local maxFitness = nil
             local function readLoop(outputPipe)
                 return util.promiseWrap(function()
                     return outputPipe:read("*l")
@@ -210,12 +211,15 @@ return function(promise)
                         end
                         genomeCallback(obj.genome, obj.index)
                     elseif obj.type == 'onFinish' then
+                        if maxFitness == nil or obj.maxFitness > maxFitness then
+                            maxFitness = obj.maxFitness
+                        end
                         return true
                     end
 
                 end):next(function(finished)
                     if finished then
-                        return
+                        return maxFitness
                     end
 
                     return readLoop(outputPipe)
@@ -230,8 +234,16 @@ return function(promise)
             end
 
             return Promise.all(table.unpack(waiters))
-        end):next(function()
+        end):next(function(maxFitnesses)
             message(_M, 'Child processes finished')
+            local maxestFitness = maxFitnesses[1]
+            for i=1,#maxFitnesses,1 do
+                local maxFitness = maxFitnesses[i]
+                if maxFitness > maxestFitness then
+                    maxestFitness = maxFitness
+                end
+            end
+            return maxestFitness
         end)
     end
 

runner.lua

@@ -639,7 +639,7 @@ local function mainLoop(_M, genome)
 
         -- Continue if we haven't timed out
         local timeoutBonus = _M.currentFrame / 4
-        if _M.timeout + timeoutBonus > 0 then
+        if _M.timeout + timeoutBonus > 0 or _M.currentFrame % 5 ~= 0 then
             return mainLoop(_M, genome)
         end
         
@@ -686,7 +686,7 @@ local function mainLoop(_M, genome)
         end
         genome.fitness = fitness
         
-        if fitness > _M.maxFitness then
+        if _M.maxFitness == nil or fitness > _M.maxFitness then
             _M.maxFitness = fitness
         end
 
@@ -712,7 +712,7 @@ local function mainLoop(_M, genome)
                 input.keyhook("9", false)
                 input.keyhook("tab", false)
 
-                return
+                return _M.maxFitness
             end
         end
 
@@ -910,7 +910,7 @@ return function(promise)
         currentGenomeIndex = 1,
         currentFrame = 0,
         drawFrame = 0,
-        maxFitness = 0,
+        maxFitness = nil,
 
         dereg = {},
         inputmode = false,