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# When I call the fireAtEnemy method on the instance tower, I get the error expected declaration

Here is my code : struct Point { let x:Int let y:Int

```init (x: Int, y: Int) {
self.x = x
self.y = y
}

func surroundingPoints(withRange range: Int = 1) -> [Point] {
var results:[Point] = []
for xCoord in (x-range)...(x+range) {
for yCoord in (y-range)...(y+range) {
let coordinatePoint = Point(x: xCoord, y:yCoord)
results.append(coordinatePoint)
}
}
return results
}
```

}

let coordinatePoint = Point (x: 2, y: 2) // Point instance

coordinatePoint.surroundingPoints() // We call the instance coordinatePoint of the function surroundingPoint that gives us all of our values

class Enemy { var life: Int = 2 let position: Point

```init(x: Int, y: Int) {

self.position = Point(x: x, y: y)
}

func decreaseHealth(factor: Int) {

life -= factor
```

}

class Tower { let position : Point var range : Int = 1 var strength : Int = 1

```init(x: Int, y: Int) {
self.position = Point(x: x, y: y)

}

func fireAtEnemy(enemy: Enemy) {
if inRange(self.position, range: self.range, target: enemy.position) {
while enemy.life > 0 {
enemy.decreaseHealth(self.strength)
}

} else {
print("Enemy is out of range")
}

}

func inRange(position: Point, range: Int, target: Point) -> Bool {
let availblePositions = position.surroundingPoints(withRange: range)
//This is an instance method
for point in availblePositions {
if (point.x == target.x) && (point.y == target.y) {
return true
}
}

return false
}
```

}

let tower = Tower(x: 0, y: 0) let enemy = Enemy(x: 1, y: 1)

tower.fireAtEnemy(enemy)

// This is the part that isn't working, pls help

```let tower = Tower(x: 0, y: 0)