diff --git a/TODO b/TODO
index 11d6885..c1c7839 100644
--- a/TODO
+++ b/TODO
@@ -1,3 +1,10 @@
+- colisiós entre entidades
 - muros
 - comprobación perímetro cercado (ovella dentro?)
 - puntuación e tempo en completar
+
+
+Ahora mesmo comprobo si dúas caixas se solapan, así teño colisiós.
+Vai ser mellor formar o cercado coas pezas individuais, así comprobaría a colisión
+con cada unha das pezas e será máis fácil deixar a abertura.
+
diff --git a/entidades/cercado.lua b/entidades/cercado.lua
index 96f6eb5..1210141 100644
--- a/entidades/cercado.lua
+++ b/entidades/cercado.lua
@@ -7,10 +7,12 @@ function Cercado:new(x, y)
     self.x = x-self.width/2
     self.y = y-self.height/2
     self.speed = 2
+    self.proba = love.graphics.newImage("img/valla-frente.png")
 
     return self
 end
 
 function Cercado:draw()
     love.graphics.draw(self.sprite, self.x, self.y)
+    love.graphics.draw(self.proba, self.x, self.y)
 end
diff --git a/img/valla-fondo.png b/img/valla-fondo.png
new file mode 100644
index 0000000..ce51e29
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diff --git a/img/valla-frente.png b/img/valla-frente.png
new file mode 100644
index 0000000..4de21a1
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diff --git a/img/valla-inf-dta.png b/img/valla-inf-dta.png
new file mode 100644
index 0000000..5b8835c
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diff --git a/img/valla-inf-ida.png b/img/valla-inf-ida.png
new file mode 100644
index 0000000..7c59c7f
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diff --git a/img/valla-lat-dta.png b/img/valla-lat-dta.png
new file mode 100644
index 0000000..08523fd
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diff --git a/img/valla-lat-ida.png b/img/valla-lat-ida.png
new file mode 100644
index 0000000..42af809
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diff --git a/img/valla-rota-1.png b/img/valla-rota-1.png
new file mode 100644
index 0000000..b9d5705
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diff --git a/img/valla-rota-2.png b/img/valla-rota-2.png
new file mode 100644
index 0000000..d1dbfd0
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diff --git a/img/valla-sup-dta.png b/img/valla-sup-dta.png
new file mode 100644
index 0000000..e0368e6
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diff --git a/img/valla-sup-ida.png b/img/valla-sup-ida.png
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index 0000000..f2cc6da
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