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source/graphics/tests/test_Terrain.h

/* Copyright (C) 2010 Wildfire Games. /* Copyright (C) 2018 Wildfire Games.
* This file is part of 0 A.D. * This file is part of 0 A.D.
* *
* 0 A.D. is free software: you can redistribute it and/or modify * 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or * the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version. * (at your option) any later version.
* *
* 0 A.D. is distributed in the hope that it will be useful, * 0 A.D. is distributed in the hope that it will be useful,
▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Lines void SetHighPlateau(CTerrain& terrain, int height)
SetVertex(terrain, 5, 1, 100 + height*TERRAIN_TILE_SIZE*HEIGHT_UNITS_PER_METRE); SetVertex(terrain, 5, 1, 100 + height*TERRAIN_TILE_SIZE*HEIGHT_UNITS_PER_METRE);
SetVertex(terrain, 5, 2, 100 + height*TERRAIN_TILE_SIZE*HEIGHT_UNITS_PER_METRE); SetVertex(terrain, 5, 2, 100 + height*TERRAIN_TILE_SIZE*HEIGHT_UNITS_PER_METRE);
} }
public: public:
void test_GetExactGroundLevel() void test_GetExactGroundLevel()
{ {
CTerrain terrain; CTerrain terrain;
terrain.Initialize(4, NULL); terrain.Initialize(4, nullptr);
Set45Slope(terrain); Set45Slope(terrain);
SetHighPlateau(terrain, 20); SetHighPlateau(terrain, 20);
float ground; float ground;
ground = terrain.GetExactGroundLevel(0.f, 1.5f*TERRAIN_TILE_SIZE); ground = terrain.GetExactGroundLevel(0.f, 1.5f*TERRAIN_TILE_SIZE);
TS_ASSERT_DELTA(ground, 100.f/HEIGHT_UNITS_PER_METRE, 0.01f); TS_ASSERT_DELTA(ground, 100.f/HEIGHT_UNITS_PER_METRE, 0.01f);
Show All 11 Lines void test_GetExactGroundLevel()
ground = terrain.GetExactGroundLevel(4.5f*TERRAIN_TILE_SIZE, 1.5f*TERRAIN_TILE_SIZE); ground = terrain.GetExactGroundLevel(4.5f*TERRAIN_TILE_SIZE, 1.5f*TERRAIN_TILE_SIZE);
TS_ASSERT_DELTA(ground, 100.f/HEIGHT_UNITS_PER_METRE+20.f*TERRAIN_TILE_SIZE, 0.01f); TS_ASSERT_DELTA(ground, 100.f/HEIGHT_UNITS_PER_METRE+20.f*TERRAIN_TILE_SIZE, 0.01f);
} }
void test_GetExactGroundLevelFixed() void test_GetExactGroundLevelFixed()
{ {
CTerrain terrain; CTerrain terrain;
terrain.Initialize(4, NULL); terrain.Initialize(4, nullptr);
Set45Slope(terrain); Set45Slope(terrain);
SetHighPlateau(terrain, 20); SetHighPlateau(terrain, 20);
const double maxDelta = 0.0001; const double maxDelta = 0.0001;
fixed ground; fixed ground;
ground = terrain.GetExactGroundLevelFixed(fixed::FromFloat(0.f), fixed::FromFloat(1.5f*TERRAIN_TILE_SIZE)); ground = terrain.GetExactGroundLevelFixed(fixed::FromFloat(0.f), fixed::FromFloat(1.5f*TERRAIN_TILE_SIZE));
Show All 13 Lines void test_GetExactGroundLevelFixed()
ground = terrain.GetExactGroundLevelFixed(fixed::FromFloat(4.5f*TERRAIN_TILE_SIZE), fixed::FromFloat(1.5f*TERRAIN_TILE_SIZE)); ground = terrain.GetExactGroundLevelFixed(fixed::FromFloat(4.5f*TERRAIN_TILE_SIZE), fixed::FromFloat(1.5f*TERRAIN_TILE_SIZE));
TS_ASSERT_DELTA(ground.ToDouble(), 100.0/HEIGHT_UNITS_PER_METRE+20.0*TERRAIN_TILE_SIZE, maxDelta); TS_ASSERT_DELTA(ground.ToDouble(), 100.0/HEIGHT_UNITS_PER_METRE+20.0*TERRAIN_TILE_SIZE, maxDelta);
} }
void test_GetExactGroundLevelFixed_max() void test_GetExactGroundLevelFixed_max()
{ {
CTerrain terrain; CTerrain terrain;
terrain.Initialize(4, NULL); terrain.Initialize(4, nullptr);
SetVertex(terrain, 0, 0, 65535); SetVertex(terrain, 0, 0, 65535);
SetVertex(terrain, 0, 1, 65535); SetVertex(terrain, 0, 1, 65535);
SetVertex(terrain, 1, 0, 65535); SetVertex(terrain, 1, 0, 65535);
SetVertex(terrain, 1, 1, 65535); SetVertex(terrain, 1, 1, 65535);
const double maxDelta = 0.024; const double maxDelta = 0.024;
int p = 255; int p = 255;
for (int zi = 0; zi < p; ++zi) for (int zi = 0; zi < p; ++zi)
{ {
for (int xi = 0; xi < p; ++xi) for (int xi = 0; xi < p; ++xi)
{ {
fixed ground = terrain.GetExactGroundLevelFixed(fixed::FromFloat(xi/(float)p*TERRAIN_TILE_SIZE), fixed::FromFloat(zi/(float)p*TERRAIN_TILE_SIZE)); fixed ground = terrain.GetExactGroundLevelFixed(fixed::FromFloat(xi/(float)p*TERRAIN_TILE_SIZE), fixed::FromFloat(zi/(float)p*TERRAIN_TILE_SIZE));
TS_ASSERT_DELTA(ground.ToDouble(), 65535.0/HEIGHT_UNITS_PER_METRE, maxDelta); TS_ASSERT_DELTA(ground.ToDouble(), 65535.0/HEIGHT_UNITS_PER_METRE, maxDelta);
} }
} }
} }
void test_CalcNormal() void test_CalcNormal()
{ {
CTerrain terrain; CTerrain terrain;
terrain.Initialize(4, NULL); terrain.Initialize(4, nullptr);
Set45Slope(terrain); Set45Slope(terrain);
CVector3D vec; CVector3D vec;
terrain.CalcNormal(1, 1, vec); terrain.CalcNormal(1, 1, vec);
TS_ASSERT_DELTA(vec.X, -1.f/sqrt(2.f), 0.01f); TS_ASSERT_DELTA(vec.X, -1.f/sqrt(2.f), 0.01f);
TS_ASSERT_DELTA(vec.Y, 1.f/sqrt(2.f), 0.01f); TS_ASSERT_DELTA(vec.Y, 1.f/sqrt(2.f), 0.01f);
TS_ASSERT_EQUALS(vec.Z, 0.f); TS_ASSERT_EQUALS(vec.Z, 0.f);
terrain.CalcNormal(2, 1, vec); terrain.CalcNormal(2, 1, vec);
TS_ASSERT_DELTA(vec.X, (-1.f/sqrt(2.f)) / sqrt(2.f+sqrt(2.f)), 0.01f); TS_ASSERT_DELTA(vec.X, (-1.f/sqrt(2.f)) / sqrt(2.f+sqrt(2.f)), 0.01f);
TS_ASSERT_DELTA(vec.Y, (1.f+1.f/sqrt(2.f)) / sqrt(2.f+sqrt(2.f)), 0.01f); TS_ASSERT_DELTA(vec.Y, (1.f+1.f/sqrt(2.f)) / sqrt(2.f+sqrt(2.f)), 0.01f);
TS_ASSERT_EQUALS(vec.Z, 0); TS_ASSERT_EQUALS(vec.Z, 0);
terrain.CalcNormal(5, 1, vec); terrain.CalcNormal(5, 1, vec);
TS_ASSERT_EQUALS(vec.X, 0.f); TS_ASSERT_EQUALS(vec.X, 0.f);
TS_ASSERT_EQUALS(vec.Y, 1.f); TS_ASSERT_EQUALS(vec.Y, 1.f);
TS_ASSERT_EQUALS(vec.Z, 0.f); TS_ASSERT_EQUALS(vec.Z, 0.f);
} }
void test_CalcNormalFixed() void test_CalcNormalFixed()
{ {
CTerrain terrain; CTerrain terrain;
terrain.Initialize(4, NULL); terrain.Initialize(4, nullptr);
Set45Slope(terrain); Set45Slope(terrain);
CFixedVector3D vec; CFixedVector3D vec;
terrain.CalcNormalFixed(1, 1, vec); terrain.CalcNormalFixed(1, 1, vec);
TS_ASSERT_DELTA(vec.X.ToFloat(), -1.f/sqrt(2.f), 0.01f); TS_ASSERT_DELTA(vec.X.ToFloat(), -1.f/sqrt(2.f), 0.01f);
TS_ASSERT_DELTA(vec.Y.ToFloat(), 1.f/sqrt(2.f), 0.01f); TS_ASSERT_DELTA(vec.Y.ToFloat(), 1.f/sqrt(2.f), 0.01f);
TS_ASSERT_EQUALS(vec.Z.ToFloat(), 0.f); TS_ASSERT_EQUALS(vec.Z.ToFloat(), 0.f);
Show All 12 Lines
Wildfire Games · Phabricator