Langton's ant: Difference between revisions
Content added Content deleted
(add swift) |
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| Line 4,497: | Line 4,497: | ||
let HEIGHT = 100 |
let HEIGHT = 100 |
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struct Point { |
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var x:Int |
var x:Int |
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var y:Int |
var y:Int |
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init(_ x:Int, _ y:Int) { |
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self.x = x |
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self.y = y |
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} |
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} |
} |
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| Line 4,516: | Line 4,511: | ||
let xInc = [0, 1,-1, 0] |
let xInc = [0, 1,-1, 0] |
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let yInc = [-1, 0, 0, 1] |
let yInc = [-1, 0, 0, 1] |
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var isBlack:[[Bool]] |
var isBlack:[[Bool]] |
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var origin:Point |
var origin:Point |
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var antPosition = Point(0, 0) |
var antPosition = Point(x:0, y:0) |
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var outOfBounds = false |
var outOfBounds = false |
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var antDirection = Direction.East |
var antDirection = Direction.East |
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init(width:Int, height:Int) { |
init(width:Int, height:Int) { |
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self.origin = Point(width / 2, height / 2) |
self.origin = Point(x:width / 2, y:height / 2) |
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self.isBlack = Array(count: width, repeatedValue: Array(count: height, repeatedValue: false)) |
self.isBlack = Array(count: width, repeatedValue: Array(count: height, repeatedValue: false)) |
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} |
} |
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| Line 4,533: | Line 4,528: | ||
func step() -> Point { |
func step() -> Point { |
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if |
if self.outOfBounds { |
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println("Ant tried to move while out of bounds.") |
println("Ant tried to move while out of bounds.") |
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exit(0) |
exit(0) |
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} |
} |
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var ptCur = Point(self.antPosition.x + self.origin.x, self.antPosition.y + self.origin.y) |
var ptCur = Point(x:self.antPosition.x + self.origin.x, y:self.antPosition.y + self.origin.y) |
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let black = self.isBlack[ptCur.x][ptCur.y] |
let black = self.isBlack[ptCur.x][ptCur.y] |
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let direction = self.antDirection.rawValue |
let direction = self.antDirection.rawValue |
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| ⚫ | |||
if (black) { |
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self.antDirection = self.leftTurn[direction] |
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} else { |
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| ⚫ | |||
} |
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self.isBlack[ptCur.x][ptCur.y] = !self.isBlack[ptCur.x][ptCur.y] |
self.isBlack[ptCur.x][ptCur.y] = !self.isBlack[ptCur.x][ptCur.y] |
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self.moveAnt() |
self.moveAnt() |
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ptCur = Point(self.antPosition.x + self.origin.x, self.antPosition.y + self.origin.y) |
ptCur = Point(x:self.antPosition.x + self.origin.x, y:self.antPosition.y + self.origin.y) |
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self.outOfBounds = |
self.outOfBounds = |
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ptCur.x < 0 || |
ptCur.x < 0 || |
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| Line 4,564: | Line 4,555: | ||
let ant = Langton(width: WIDTH, height: HEIGHT) |
let ant = Langton(width: WIDTH, height: HEIGHT) |
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while |
while !ant.outOfBounds { |
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ant.step() |
ant.step() |
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} |
} |
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for |
for row in 0 ..< WIDTH { |
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for |
for col in 0 ..< HEIGHT { |
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print((ant.isBlack[col][row] ? "#" : " ")) |
print((ant.isBlack[col][row] ? "#" : " ")) |
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} |
} |
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