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proto/source/TRIG.HPP

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+#ifndef _PROTO_TRIGTABLE_HPP_
+#define _PROTO_TRIGTABLE_HPP_
+#ifndef _COMMON_SMARTPOINTER_HPP_
+#include <common/pointer.hpp>
+#endif
+#ifndef _COMMON_GLOBALDATA_HPP_
+#include <common/gdata.hpp>
+#endif
+
+class GUIWindow;
+class Angles;
+
+class TrigTable
+{
+public:
+  TrigTable(void);
+	virtual ~TrigTable();
+	void build(const Angles &angles);
+	int cos(int theta);
+	int sin(int theta);
+private:
+	TrigTable(const TrigTable &trigTable);
+	TrigTable &operator=(const TrigTable &trigTable);
+	int angle360(void)const;
+	void angle360(int angle360);
+
+	GlobalData<int> mCosTable;
+	GlobalData<int> mSinTable;
+	int mAngle360;
+};
+
+inline
+TrigTable::TrigTable(void)
+: mAngle360(0)
+{
+}
+
+inline
+TrigTable::TrigTable(const TrigTable &trigTable)
+: mAngle360(0)
+{ // private implementation
+  *this=trigTable;
+}
+
+inline
+TrigTable::~TrigTable()
+{
+}
+
+inline
+TrigTable &TrigTable::operator=(const TrigTable &/*trigTable*/)
+{ // private implementation
+  return *this;
+}
+
+inline
+int TrigTable::angle360(void)const
+{
+  return mAngle360;
+}
+
+inline
+void TrigTable::angle360(int angle360)
+{
+  mAngle360=angle360;
+}
+
+inline
+int TrigTable::cos(int theta)
+{
+  if(theta<0)return mCosTable.operator[](theta+angle360());
+	else if(theta>=angle360())return mCosTable.operator[](theta-angle360());
+	return mCosTable.operator[](theta);
+}
+
+inline
+int TrigTable::sin(int theta)
+{
+  if(theta<0)return mSinTable.operator[](theta+angle360());
+	else if(theta>=angle360())return mSinTable.operator[](theta-angle360());
+	return mSinTable.operator[](theta);
+}
+#endif