Index: test.d
==================================================================
--- test.d
+++ test.d
@@ -8,15 +8,21 @@
 class Map
 {
 	private char[][] data;
 	bool dead = false;
 	bool cleared = false;
+	int water = 0;
+	int flooding = 0;
+	int water_proof = 10;
+	int underwater = 0;
+	int flooding_counter = 0;
 
 	this(File input)
 	{
-		foreach(s; input.byLine())
-			data ~= s.chomp.dup;
+		string line;
+		while( (line=input.readln().chomp()).length )
+			data ~= line.dup;
 
 		int width = 0;
 		foreach(s; data)
 			width = max(width, s.length);
 
@@ -30,10 +36,22 @@
 
 		// vertical sentinel
 		char[] sen = new char[width+2];
 		sen[] = '#';
 		data = sen.dup ~ data ~ sen;
+
+		// flooding
+		water = H-1;
+		string wfws = input.readln().chomp() ~ " ";
+		wfws ~= input.readln().chomp() ~ " ";
+		wfws ~= input.readln().chomp();
+		string[] wfw = wfws.split();
+		if(wfw.length==6) {
+			water = H-1 - wfw[1].to!int();
+			flooding = wfw[3].to!int();
+			water_proof = wfw[5].to!int();
+		}
 	}
 
 	@property const
 	{
 		int W() { return data[0].length; }
@@ -132,10 +150,29 @@
 				if(!lambda)
 					next[y][x] = 'O';
 			}
 		}
 		data = next;
+
+		if(flooding) {
+			flooding_counter ++;
+			if(flooding_counter == flooding) {
+				flooding_counter = 0;
+				water --;
+			}
+			bool wa = false;
+			for(int y=water; y+1<H; ++y)
+			for(int x=1; x+1<W; ++x)
+				if(data[y][x]=='R') {
+					wa = true;
+					underwater++;
+					if(underwater > water_proof)
+						dead = true;
+				}
+			if(!wa)
+				underwater = 0;
+		}
 	}
 }
 
 class MyForm : Form
 {
@@ -156,10 +193,11 @@
 	override void onPaint(PaintEventArgs ev)
 	{
 		int Z = min(this.clientSize.width/(m.W-2), this.clientSize.height/(m.H-2));
 		Font font = new Font("MS Gothic", Z-4);
 		Graphics g = ev.graphics;
+		g.fillRectangle(Color(0,233,255), Rect(0,Z*(m.water-1),this.clientSize.width,this.clientSize.height-(Z*(m.water-1))));
 		for(int y=1; y+1<m.H; ++y)
 		for(int x=1; x+1<m.W; ++x) {
 			if(m.data[y][x]=='*') {
 				g.drawText("岩", font, Color(0,0,0), Rect((x-1)*Z, (y-1)*Z, Z, Z));
 			}