1 files changed, 43 insertions, 0 deletions
diff --git a/src/ai/api/ai_base.cpp b/src/ai/api/ai_base.cpp
new file mode 100644
index 000000000..fa04bac36
--- /dev/null
+++ b/src/ai/api/ai_base.cpp
@@ -0,0 +1,43 @@
+/* $Id$ */
+
+/** @file ai_base.cpp Implementation of AIBase. */
+
+#include "ai_base.hpp"
+#include "../../network/network.h"
+#include "../../core/random_func.hpp"
+
+/* static */ uint32 AIBase::Rand()
+{
+	/* We pick RandomRange if we are in SP (so when saved, we do the same over and over)
+	 *   but we pick InteractiveRandomRange if we are a network_server or network-client. */
+	if (_networking) return ::InteractiveRandom();
+	return ::Random();
+}
+
+/* static */ uint32 AIBase::RandItem(int unused_param)
+{
+	return AIBase::Rand();
+}
+
+/* static */ uint AIBase::RandRange(uint max)
+{
+	/* We pick RandomRange if we are in SP (so when saved, we do the same over and over)
+	 *   but we pick InteractiveRandomRange if we are a network_server or network-client. */
+	if (_networking) return ::InteractiveRandomRange(max);
+	return ::RandomRange(max);
+}
+
+/* static */ uint32 AIBase::RandRangeItem(int unused_param, uint max)
+{
+	return AIBase::RandRange(max);
+}
+
+/* static */ bool AIBase::Chance(uint out, uint max)
+{
+	return (uint16)Rand() <= (uint16)((65536 * out) / max);
+}
+
+/* static */ bool AIBase::ChanceItem(int unused_param, uint out, uint max)
+{
+	return AIBase::Chance(out, max);
+}