Add Score-class.

2 files changed, 85 insertions, 0 deletions

diff --git a/server/score.cpp b/server/score.cpp
new file mode 100644
index 0000000..1af1d63
--- /dev/null
+++ b/server/score.cpp
@@ -0,0 +1,57 @@
+#include "score.h"
+
+inline int roundup(int value, int roundto) {
+	return value % roundto ? value + roundto - value % roundto : value;
+}
+
+inline int max(int x, int y) {
+	return x > y ? x : y;
+}
+
+Score::Score(int han_, int fu_) : han(han_), fu(fu_) {
+	
+}
+
+int Score::base_points() {
+	if(han < 5) {
+		// Normal hand.
+		return max(roundup(fu, 10) << (2 + han), 2000);
+	
+	} else if(han <= 5) {
+		// Mangan.
+		return 2000;
+	
+	} else if(han <= 7) {
+		// Haneman.
+		return 3000;
+	
+	} else if(han <= 10) {
+		// Baiman.
+		return 4000;
+	
+	} else if(han <= 12) {
+		// Sanbaiman.
+		return 6000;
+	
+	} else {
+		// Kazoe yakuman.
+		return 8000;
+	
+	}
+}
+
+int Score::ron() {
+	return roundup(base_points() * 4, 100);
+}
+
+int Score::ron_east() {
+	return roundup(base_points() * 6, 100);
+}
+
+int Score::tsumo() {
+	return roundup(base_points(), 100);
+}
+
+int Score::tsumo_east() {
+	return roundup(base_points() * 2, 100);
+}
diff --git a/server/score.h b/server/score.h
new file mode 100644
index 0000000..7c5ca17
--- /dev/null
+++ b/server/score.h
@@ -0,0 +1,28 @@
+#ifndef SCORE_H
+#define SCORE_H
+
+class Score {
+	public:
+		int han;
+		int fu;
+		
+		//! Constructor.
+		Score(int han_ = 0, int fu_ = 0);
+		
+		//! Calculate base points.
+		int base_points();
+		
+		//! Score paid upon ron. (4 BP)
+		int ron();
+		
+		//! Score paid upon ron by east. (6 BP)
+		int ron_east();
+		
+		//! Score paid by others upon tsumo by others. (BP)
+		int tsumo();
+		
+		//! Score paid by east upon tsumo by others or others upon tsumo by east. (2 BP)
+		int tsumo_east();
+};
+
+#endif