1 files changed, 37 insertions, 0 deletions
diff --git a/src/libbbs/money.c b/src/libbbs/money.c
new file mode 100644
index 00000000..a6d54127
--- /dev/null
+++ b/src/libbbs/money.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+
+#include <libbbs.h>
+
+/* 計算贈與稅 */
+int
+give_tax(int money)
+{
+    int             i, tax = 0;
+    int      tax_bound[] = {1000000, 100000, 10000, 1000, 0};
+    double   tax_rate[] = {0.4, 0.3, 0.2, 0.1, 0.08};
+    for (i = 0; i <= 4; i++)
+	if (money > tax_bound[i]) {
+	    tax += (money - tax_bound[i]) * tax_rate[i];
+	    money -= (money - tax_bound[i]);
+	}
+    return (tax <= 0) ? 1 : tax;
+}
+
+const char*
+money_level(int money)
+{
+    int i = 0;
+
+    static const char *money_msg[] =
+    {
+	"債台高築", "赤貧", "清寒", "普通", "小康",
+	"小富", "中富", "大富翁", "富可敵國", "比爾蓋\天", NULL
+    };
+    while (money_msg[i] && money > 10)
+	i++, money /= 10;
+
+    if(!money_msg[i])
+	i--;
+    return money_msg[i];
+}
+