Ykkrosh
7c2e9027c2
Giant merge from http://svn.wildfiregames.com/hg-source/file/5fb522019d5e Infrastructure is largely complete, gameplay is largely missing Disabled by default; use command-line flag "-sim2" (Second attempt at commit...) This was SVN commit r7259.
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "lib/self_test.h"
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#include "maths/FixedVector3D.h"
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#define TS_ASSERT_VEC_EQUALS(v, x, y, z) \
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TS_ASSERT_EQUALS(v.X.ToDouble(), x); \
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TS_ASSERT_EQUALS(v.Y.ToDouble(), y); \
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TS_ASSERT_EQUALS(v.Z.ToDouble(), z);
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class TestFixedVector3D : public CxxTest::TestSuite
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{
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typedef CFixed_23_8 fixed;
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public:
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void test_basic()
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{
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CFixedVector3D v1 (fixed::FromInt(1), fixed::FromInt(2), fixed::FromInt(3));
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CFixedVector3D v2 (fixed::FromInt(10), fixed::FromInt(20), fixed::FromInt(30));
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CFixedVector3D v3;
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TS_ASSERT_VEC_EQUALS(v1, 1, 2, 3);
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TS_ASSERT_VEC_EQUALS(v2, 10, 20, 30);
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TS_ASSERT_VEC_EQUALS(v3, 0, 0, 0);
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v3 = v1 + v2;
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TS_ASSERT_VEC_EQUALS(v3, 11, 22, 33);
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v3 += v2;
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TS_ASSERT_VEC_EQUALS(v3, 21, 42, 63);
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v3 -= v2;
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TS_ASSERT_VEC_EQUALS(v3, 11, 22, 33);
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v3 = v1 - v2;
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TS_ASSERT_VEC_EQUALS(v3, -9, -18, -27);
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v3 = -v3;
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TS_ASSERT_VEC_EQUALS(v3, 9, 18, 27);
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}
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void test_Length()
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{
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CFixedVector3D v1 (fixed::FromInt(3), fixed::FromInt(4), fixed::FromInt(12));
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TS_ASSERT_EQUALS(v1.Length().ToDouble(), 13.0);
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fixed max;
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max.SetInternalValue((i32)0x7fffffff);
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CFixedVector3D v2 (max, fixed::FromInt(0), fixed::FromInt(0));
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TS_ASSERT_EQUALS(v2.Length().ToDouble(), max.ToDouble());
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fixed large;
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large.SetInternalValue((i32)((double)0x7fffffff/sqrt(3.0))+1); // largest value that shouldn't cause overflow
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CFixedVector3D v3 (large, large, large);
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TS_ASSERT_DELTA(v3.Length().ToDouble(), sqrt(3.0)*large.ToDouble(), 0.01);
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}
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void test_Normalize()
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{
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CFixedVector3D v0 (fixed::FromInt(0), fixed::FromInt(0), fixed::FromInt(0));
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v0.Normalize();
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TS_ASSERT_EQUALS(v0.X.ToDouble(), 0.0);
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TS_ASSERT_EQUALS(v0.Y.ToDouble(), 0.0);
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TS_ASSERT_EQUALS(v0.Z.ToDouble(), 0.0);
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CFixedVector3D v1 (fixed::FromInt(3), fixed::FromInt(4), fixed::FromInt(12));
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v1.Normalize();
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TS_ASSERT_DELTA(v1.X.ToDouble(), 3.0/13.0, 0.01);
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TS_ASSERT_DELTA(v1.Y.ToDouble(), 4.0/13.0, 0.01);
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TS_ASSERT_DELTA(v1.Z.ToDouble(), 12.0/13.0, 0.01);
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fixed max;
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max.SetInternalValue((i32)0x7fffffff);
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CFixedVector3D v2 (max, fixed::FromInt(0), fixed::FromInt(0));
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v2.Normalize();
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TS_ASSERT_EQUALS(v2.X.ToDouble(), 1.0);
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TS_ASSERT_EQUALS(v2.Y.ToDouble(), 0.0);
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TS_ASSERT_EQUALS(v2.Z.ToDouble(), 0.0);
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fixed large;
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large.SetInternalValue((i32)((double)0x7fffffff/sqrt(3.0))+1); // largest value that shouldn't cause overflow
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CFixedVector3D v3 (large, large, large);
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v3.Normalize();
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TS_ASSERT_DELTA(v3.X.ToDouble(), 1.0/sqrt(3.0), 0.01);
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TS_ASSERT_DELTA(v3.Y.ToDouble(), 1.0/sqrt(3.0), 0.01);
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TS_ASSERT_DELTA(v3.Z.ToDouble(), 1.0/sqrt(3.0), 0.01);
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}
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void test_Cross()
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{
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CFixedVector3D v1 (fixed::FromInt(5), fixed::FromInt(6), fixed::FromInt(7));
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CFixedVector3D v2 (fixed::FromInt(8), fixed::FromInt(9), fixed::FromInt(-10));
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CFixedVector3D v3 = v1.Cross(v2);
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TS_ASSERT_EQUALS(v3.X.ToDouble(), 6*-10 - 7*9);
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TS_ASSERT_EQUALS(v3.Y.ToDouble(), 7*8 - 5*-10);
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TS_ASSERT_EQUALS(v3.Z.ToDouble(), 5*9 - 8*6);
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}
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void test_Dot()
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{
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CFixedVector3D v1 (fixed::FromInt(5), fixed::FromInt(6), fixed::FromInt(7));
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CFixedVector3D v2 (fixed::FromInt(8), fixed::FromInt(9), fixed::FromInt(-10));
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TS_ASSERT_EQUALS(v1.Dot(v2).ToDouble(), 5*8 + 6*9 + 7*-10);
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}
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};
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