More code standards

src/TrueSkill/DrawMargin.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill;
 
 use DNW\Skills\Numerics\GaussianDistribution;

src/TrueSkill/Factors/GaussianWeightedSumFactor.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Factors;
 
 use DNW\Skills\FactorGraphs\Message;

src/TrueSkill/Layers/IteratedTeamDifferencesInnerLayer.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Layers;
 
 use DNW\Skills\FactorGraphs\ScheduleLoop;

src/TrueSkill/Layers/PlayerPerformancesToTeamPerformancesLayer.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Layers;
 
 use DNW\Skills\FactorGraphs\ScheduleStep;
@@ -87,7 +89,7 @@ class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLaye
      */
     private function createOutputVariable(array $team): Variable
     {
-        $memberNames = array_map(fn ($currentPlayer) => (string) ($currentPlayer->getKey()), $team);
+        $memberNames = array_map(fn ($currentPlayer) => (string)($currentPlayer->getKey()), $team);
 
         $teamMemberNames = \implode(', ', $memberNames);
 

src/TrueSkill/Layers/PlayerPriorValuesToSkillsLayer.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Layers;
 
 use DNW\Skills\FactorGraphs\ScheduleStep;

src/TrueSkill/Layers/PlayerSkillsToPerformancesLayer.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Layers;
 
 use DNW\Skills\FactorGraphs\KeyedVariable;

src/TrueSkill/Layers/TeamDifferencesComparisonLayer.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Layers;
 
 use DNW\Skills\TrueSkill\DrawMargin;

src/TrueSkill/Layers/TeamPerformancesToTeamPerformanceDifferencesLayer.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill\Layers;
 
 use DNW\Skills\FactorGraphs\Variable;

src/TrueSkill/TrueSkillFactorGraph.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill;
 
 use DNW\Skills\FactorGraphs\FactorGraph;
@@ -60,11 +62,11 @@ class TrueSkillFactorGraph extends FactorGraph
 
     public function buildGraph(): void
     {
-        $lastOutput = null;
+        $lastOutput = NULL;
 
         $layers = $this->layers;
         foreach ($layers as $currentLayer) {
-            if ($lastOutput != null) {
+            if ($lastOutput != NULL) {
                 $currentLayer->setInputVariablesGroups($lastOutput);
             }
 
@@ -105,7 +107,7 @@ class TrueSkillFactorGraph extends FactorGraph
         $layers = $this->layers;
         foreach ($layers as $currentLayer) {
             $currentPriorSchedule = $currentLayer->createPriorSchedule();
-            if ($currentPriorSchedule != null) {
+            if ($currentPriorSchedule != NULL) {
                 $fullSchedule[] = $currentPriorSchedule;
             }
         }
@@ -114,7 +116,7 @@ class TrueSkillFactorGraph extends FactorGraph
 
         foreach ($allLayersReverse as $currentLayer) {
             $currentPosteriorSchedule = $currentLayer->createPosteriorSchedule();
-            if ($currentPosteriorSchedule != null) {
+            if ($currentPosteriorSchedule != NULL) {
                 $fullSchedule[] = $currentPosteriorSchedule;
             }
         }

src/TrueSkill/TruncatedGaussianCorrectionFunctions.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill;
 
 use DNW\Skills\Numerics\GaussianDistribution;

src/TrueSkill/TwoPlayerTrueSkillCalculator.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill;
 
 use DNW\Skills\GameInfo;

src/TrueSkill/TwoTeamTrueSkillCalculator.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace DNW\Skills\TrueSkill;
 
 use DNW\Skills\GameInfo;