Created
February 12, 2017 04:48
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ProcessingでLifeGameをScala実装
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import processing.core.PApplet | |
import processing.core.PConstants._ | |
class App extends PApplet { | |
private[this] val CELL_SIZE = 10 | |
private[this] val W = 102 | |
private[this] val H = 76 | |
private[this] val arr = new Array[Boolean](W * H) | |
private[this] val tmp_arr = new Array[Boolean](W * H) | |
override def settings(): Unit = { | |
size(W * CELL_SIZE, H * CELL_SIZE, JAVA2D) | |
} | |
override def setup(): Unit = { | |
//frameRate(10) | |
fill(60) | |
} | |
override def mousePressed(): Unit = { | |
for (x <- 0 to W * H - 1) { | |
arr(x) = if (random(1.0f) < 0.5f) { | |
true | |
} else { | |
false | |
} | |
} | |
} | |
override def draw(): Unit = { | |
background(200) | |
write_lines() | |
update_cells() | |
write_cells() | |
} | |
private[this] def write_lines() = { | |
for (x <- 0 to W * CELL_SIZE by CELL_SIZE) line(x, 0, x, height) | |
for (y <- 0 to H * CELL_SIZE by CELL_SIZE) line(0, y, width, y) | |
} | |
private[this] def update_cells(): Unit = { | |
for (i <- 0 to W * H - 1) { | |
var c = 0 | |
// 左側 | |
if (i % W > 0 && arr(i - 1)) { | |
c += 1 | |
} | |
// 右側 | |
if (i % W != W - 1 && arr(i + 1)) { | |
c += 1 | |
} | |
// 上、右上、左上 | |
if (i / W > 0) { | |
if (arr(i - W)) c += 1 | |
if (i % W != W - 1 && arr(i + 1 - W)) c += 1 | |
if (i % W > 0 && arr(i - 1 - W)) c += 1 | |
} | |
// 下、左下、右下 | |
if (i / W < H - 1) { | |
if (arr(i + W)) c += 1 | |
if (i % W != W - 1 && arr(i + 1 + W)) c += 1 | |
if (i % W > 0 && arr(i - 1 + W)) c += 1 | |
} | |
// 生存判定 | |
if (arr(i) && (c == 2 || c == 3)) { | |
tmp_arr(i) = true | |
} else if (arr(i)) { | |
tmp_arr(i) = false | |
} else if (c == 3) { | |
tmp_arr(i) = true | |
} else { | |
tmp_arr(i) = false | |
} | |
} | |
tmp_arr.copyToArray(arr) | |
} | |
private[this] def write_cells(): Unit = { | |
for (i <- 0 to W * H - 1) { | |
val y = i / W | |
val x = i % W | |
if (arr(i)) { | |
rect(x * CELL_SIZE, y * CELL_SIZE, CELL_SIZE, CELL_SIZE) | |
} | |
} | |
} | |
} |
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