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				@@ -104,8 +104,7 @@ export default { 
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				       this.ctx = this.canvasMap.ctx 
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				       // define init position of the item 
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				-      this.pos.x = this.ray/2 + Math.random()*(this.canvas.width - this.ray) 
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				-      this.pos.y = this.ray/2 + Math.random()*(this.canvas.height - this.ray) 
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				+      this.pos = this.getRandomPos(); 
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				       // MATTER 
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				       // create the matter body and add it to the engine 
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				@@ -147,6 +146,12 @@ export default { 
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				       Matter.Events.on(this.matterEngine, "beforeUpdate", this.onBeforeEngineUpdate) 
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				       Matter.Events.on(this.matterEngine, "afterUpdate", this.onAfterEngineUpdate); 
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				     }, 
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				+    getRandomPos(){ 
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				+      return { 
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				+        x: this.ray/2 + Math.random()*(this.canvas.width - this.ray), 
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				+        y: this.ray/2 + Math.random()*(this.canvas.height - this.ray) 
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				+      }; 
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				+    }, 
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				     parsePoints (){ 
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				       // converts data (menace/maintien, actuel/future, prise) into atcual position x,y 
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				       for (let i = 0; i < this.entites.length; i++) { 
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				@@ -187,7 +192,7 @@ export default { 
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				     getSalientPoints () { 
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				       // debugger 
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				       // console.log(this.entites); 
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				-      let arc = 360/12; 
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				+      let arc = 360/10; 
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				       // loop through arcs 
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				       for (let i = 0; i <= 360/arc; i++) { 
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				         // loop through entities to find the farest on the arc 
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				@@ -197,8 +202,8 @@ export default { 
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				           let entite = this.entites[j]; 
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				           if(arc*i <= entite.display.alpha && entite.display.alpha <= arc*i+arc) { 
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				             // if entity is in arc 
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				-            if (entite.display.ray > max_r) { 
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				-              // if entity is farest from precedent one 
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				+            if (entite.display.ray > max_r) { //  && entite.display.ray > this.ray/2 // and farest from minimu 
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				+              // if entity is farest from precedent one  
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				               max_r = entite.display.ray; 
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				               farest = entite; 
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				             } 
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				@@ -277,6 +282,14 @@ export default { 
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				       } 
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				     }, 
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				     onAfterEngineUpdate (event) { 
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				+      // respawn element if outside screen 
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				+      if(this.pos.x < 0 
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				+        || this.pos.x > this.canvas.width 
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				+        || this.pos.y < 0 
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				+        || this.pos.y > this.canvas.height){ 
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				+          this.pos = this.getRandomPos() 
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				+          Matter.Body.setPosition(this.body, {x:this.pos.x, y:this.pos.y}); 
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				+        } 
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				       this.draw() 
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				     }, 
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				     draw() { 
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