From b5d16ef340208bbe1a76f33f7498fb168f6405b6 Mon Sep 17 00:00:00 2001
From: Piotr Dziwinski <piotrdz@gmail.com>
Date: Tue, 12 Jun 2012 13:48:17 +0200
Subject: Fixes in math module

- rewritten RotateAngle() function and test for it in geometry_test.cpp
- added conv.h - conversion functions
- added comments in math3d.h and d3dmath.h pointing to new functions
- other minor fixes
---
 src/math/test/CMakeLists.txt    |  5 ++-
 src/math/test/geometry_test.cpp | 83 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 src/math/test/geometry_test.cpp

(limited to 'src/math/test')

diff --git a/src/math/test/CMakeLists.txt b/src/math/test/CMakeLists.txt
index af9bcca..3d52dd9 100644
--- a/src/math/test/CMakeLists.txt
+++ b/src/math/test/CMakeLists.txt
@@ -5,11 +5,13 @@ set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -O0")
 
 add_executable(matrix_test matrix_test.cpp)
 add_executable(vector_test vector_test.cpp)
+add_executable(geometry_test geometry_test.cpp)
 
 enable_testing()
 
 add_test(matrix_test ./matrix_test)
 add_test(vector_test ./vector_test)
+add_test(geometry_test ./geometry_test)
 
 # 'make check' will compile the required test programs
 # Note that 'make test' will still fail without compiled programs
@@ -20,6 +22,7 @@ set(REMOVE_FILES
  CMakeFiles Testing cmake_install.cmake CMakeCache.txt CTestTestfile.cmake Makefile
  ./matrix_test
  ./vector_test
+ ./geometry_test
 )
 
-add_custom_target(distclean COMMAND rm -rf ${REMOVE_FILES})
\ No newline at end of file
+add_custom_target(distclean COMMAND rm -rf ${REMOVE_FILES})
diff --git a/src/math/test/geometry_test.cpp b/src/math/test/geometry_test.cpp
new file mode 100644
index 0000000..9082e3e
--- /dev/null
+++ b/src/math/test/geometry_test.cpp
@@ -0,0 +1,83 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * This program is free software: you can redistribute it and/or modify
+// * it under the terms of the GNU General Public License as published by
+// * the Free Software Foundation, either version 3 of the License, or
+// * (at your option) any later version.
+// *
+// * This program is distributed in the hope that it will be useful,
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// * GNU General Public License for more details.
+// *
+// * You should have received a copy of the GNU General Public License
+// * along with this program. If not, see  http://www.gnu.org/licenses/.
+
+// math/test/geometry_test.cpp
+
+/* Unit tests for functions in geometry.h */
+
+#include "../func.h"
+#include "../geometry.h"
+
+#include <cstdio>
+
+using namespace std;
+
+const float TEST_TOLERANCE = 1e-5;
+
+// Test for rewritten function RotateAngle()
+int TestRotateAngle()
+{
+  if (! Math::IsEqual(Math::RotateAngle(0.0f, 0.0f), 0.0f, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(1.0f, 0.0f), 0.0f, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(1.0f, 1.0f), 0.25f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(0.0f, 2.0f), 0.5f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(-0.5f, 0.5f), 0.75f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(-1.0f, 0.0f), Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(-1.0f, -1.0f), 1.25f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(0.0f, -2.0f), 1.5f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(1.0f, -1.0f), 1.75f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  return 0;
+}
+
+int main()
+{
+  // Functions to test
+  int (*TESTS[])() =
+  {
+    TestRotateAngle
+  };
+  const int TESTS_SIZE = sizeof(TESTS) / sizeof(*TESTS);
+
+  int result = 0;
+  for (int i = 0; i < TESTS_SIZE; ++i)
+  {
+    result = TESTS[i]();
+    if (result != 0)
+      return result;
+  }
+
+  fprintf(stderr, "All tests successful\n");
+
+  return 0;
+}
-- 
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