it works, lets debug

countBattles.txt

@@ -1 +1 @@
-1671
+1677

src/arenas/tron/Coords.php

@@ -1,16 +1,26 @@
 <?php
 class Coords{
+  private $min = 0;
+  private $max = 999;
 
   public $x;
   public $y;
 
   public function __construct(int $x = 0, int $y = 0) {
+    if (($x < $this->min) || ($x > $this->max) || ($y < $this->min) || ($y > $this->max)){
+      //out of limits
+      return false;
+    }
+  
     $this->x = $x;
     $this->y = $y;
+    
+
   }
 
   public function __toString(){
     return $this->x.",".$this->y;
+    
   }
   
   public function addDirection(Direction $dir){

src/arenas/tron/Trail.php

@@ -9,6 +9,9 @@ class Trail {
   }
 
   public function last() {
+    if($this->trail->isEmpty()){
+      return false;
+    }
     return $this->trail->top();
   }
 
@@ -19,9 +22,12 @@ class Trail {
   public function add($value) {
     if(!$this->trail->isEmpty()) {
       if(Trail::kind($this->trail->bottom()) !== Trail::kind($value)) {
-        throw new TypeError(
-          'items added to a trail must be of the same kind'
-        );
+      
+      //
+      //  throw new TypeError(
+      //    'items added to a trail must be of the same kind'
+      //  );
+	return false;
       }
 
       if($this->contains($value)) {

src/arenas/tron/TronGame.php

@@ -123,6 +123,7 @@ class TronGame
 	}else{
 	
 	  $lastsCells[$botCount] = $this->bots[$botCount]->grow($dir);
+	  
 	  if($lastsCells[$botCount] === false){
 	    $loosers[] = $botCount;
 	    $this->bots[$botCount]->loose();	    
@@ -152,7 +153,6 @@ class TronGame
       }
     }
    
-    
     //loosers list (in order to pass their id)
     $loosersList = array();
     foreach($loosers as $looser){
@@ -173,6 +173,7 @@ class TronGame
     
     $cmh = curl_multi_init();
     for ($i = 0; $i < count($iasUrls); $i++){
+	  if(isset($postParams[$i])){ //dont use already deads bots
 	      $data_string = json_encode($postParams[$i]);
 	
 	      $ch[$i] = curl_init($iasUrls[$i]);                                                                      
@@ -187,6 +188,7 @@ class TronGame
 	      );
 	      curl_multi_add_handle($cmh,$ch[$i]);
 	   }
+    }
     
     //send the requests
     do {
@@ -195,7 +197,10 @@ class TronGame
     
      
     //Get results
+     
     for ($i = 0; $i < count($iasUrls); $i++){
+    
+      if(isset($postParams[$i])){
 	  // Check for errors
 	  $curlError = curl_error($ch[$i]);
 	  if($curlError == "") {
@@ -216,6 +221,9 @@ class TronGame
 	  //close
 	  curl_multi_remove_handle($cmh, $ch[$i]);
 	  curl_close($ch[$i]);
+	
+	}
+	
       }
       // Clean up the curl_multi handle
       curl_multi_close($cmh);

src/arenas/tron/TronPlayer.php

@@ -8,12 +8,19 @@ class TronPlayer{
   public $isAlive = true;
     
   public function grow(Direction $dir){
+   $dest = $this->trail->last()->addDirection($dir);
+   if($dest == false){
+	$this->loose();
+	return false;
+    }
+    
     $this->trail->add($this->trail->last()->addDirection($dir));
     return $this->trail->last();
   }
   public function loose(){
    $this->isAlive = false;
    $this->trail->emptyTrail();
+   error_log($this->name." a perdu");
     return false;
   }
   public function make($botId, Coords $initialsCoords,$name,$url){