mirror of
https://github.com/minetest/irrlicht.git
synced 2024-11-06 10:20:41 +01:00
8310a3fbad
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6000 dfc29bdd-3216-0410-991c-e03cc46cb475
282 lines
8.4 KiB
C++
282 lines
8.4 KiB
C++
// Copyright (C) 2008-2012 Colin MacDonald
|
|
// No rights reserved: this software is in the public domain.
|
|
|
|
#include "testUtils.h"
|
|
#include <irrlicht.h>
|
|
|
|
using namespace irr;
|
|
using namespace core;
|
|
|
|
template<class T>
|
|
static bool testGetIntersectionWithLine(core::triangle3d<T>& triangle, const core::line3d<T>& ray)
|
|
{
|
|
bool allExpected=true;
|
|
const vector3d<T> linevect = ray.getVector().normalize();
|
|
vector3d<T> intersection;
|
|
// When we just raise Y parallel to the ray then either all should fail or all succeed (the latter in our case).
|
|
for (u32 i=0; i<100; ++i)
|
|
{
|
|
if (!triangle.getIntersectionOfPlaneWithLine(ray.start, linevect, intersection))
|
|
{
|
|
allExpected=false;
|
|
logTestString("triangle3d plane test %d failed\n", i);
|
|
}
|
|
//logTestString("intersection: %f %f %f\n", intersection.X, intersection.Y, intersection.Z);
|
|
if (!triangle.isPointInsideFast(intersection))
|
|
{
|
|
allExpected=false;
|
|
logTestString("triangle3d fast point test %d failed\n", i);
|
|
}
|
|
if (!triangle.isPointInside(intersection))
|
|
{
|
|
allExpected=false;
|
|
logTestString("triangle3d point test %d failed\n", i);
|
|
}
|
|
|
|
if (!triangle.getIntersectionWithLine(ray.start, linevect, intersection))
|
|
{
|
|
allExpected=false;
|
|
logTestString("triangle3d tri test %d failed\n", i);
|
|
}
|
|
|
|
triangle.pointB.Y += 1;
|
|
}
|
|
return allExpected;
|
|
}
|
|
|
|
// modifying the same triangle in diverse ways get some more test-cases automatically
|
|
template<class T>
|
|
static bool stageModifications(int stage, triangle3d<T>& triangle)
|
|
{
|
|
switch ( stage )
|
|
{
|
|
case 0:
|
|
return true;
|
|
case 1:
|
|
swap(triangle.pointB, triangle.pointC);
|
|
return true;
|
|
case 2:
|
|
swap(triangle.pointA, triangle.pointC);
|
|
return true;
|
|
case 3:
|
|
triangle.pointA.Z += 1000;
|
|
triangle.pointB.Z += 1000;
|
|
triangle.pointC.Z += 1000;
|
|
return true;
|
|
case 4:
|
|
swap(triangle.pointA.Y, triangle.pointA.Z);
|
|
swap(triangle.pointB.Y, triangle.pointB.Z);
|
|
swap(triangle.pointC.Y, triangle.pointC.Z);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template<class T>
|
|
static void stageModifications(int stage, vector3d<T>& point)
|
|
{
|
|
switch ( stage )
|
|
{
|
|
case 3:
|
|
point.Z += 1000;
|
|
break;
|
|
case 4:
|
|
swap(point.Y, point.Z);
|
|
break;
|
|
}
|
|
}
|
|
|
|
template<class T>
|
|
static bool isPointInside(triangle3d<T> triangleOrig, bool testIsInside, bool testIsInsideFast)
|
|
{
|
|
bool allExpected=true;
|
|
|
|
array< vector3d<T> > pointsInside;
|
|
pointsInside.push_back( vector3d<T>(0,0,0) );
|
|
pointsInside.push_back( (triangleOrig.pointA + triangleOrig.pointB + triangleOrig.pointC) / 3 );
|
|
pointsInside.push_back( (triangleOrig.pointA + triangleOrig.pointB)/2 + vector3d<T>(0,1,0) );
|
|
pointsInside.push_back( (triangleOrig.pointA + triangleOrig.pointC)/2 + vector3d<T>(1,0,0) );
|
|
pointsInside.push_back( (triangleOrig.pointB + triangleOrig.pointC)/2 - vector3d<T>(1,0,0) );
|
|
|
|
for (u32 stage=0; ; ++stage)
|
|
{
|
|
triangle3d<T> triangle = triangleOrig;
|
|
if ( !stageModifications(stage, triangle) )
|
|
break;
|
|
|
|
for ( u32 i=0; i < pointsInside.size(); ++i )
|
|
{
|
|
vector3d<T> point = pointsInside[i];
|
|
stageModifications(stage, point);
|
|
|
|
if ( testIsInside )
|
|
{
|
|
allExpected &= triangle.isPointInside( point );
|
|
if ( !allExpected )
|
|
{
|
|
logTestString("triangle3d::isPointInside pointsInside test failed in stage %d point %d\n", stage, i);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ( testIsInsideFast )
|
|
{
|
|
allExpected &= triangle.isPointInsideFast( point );
|
|
if ( !allExpected )
|
|
{
|
|
logTestString("triangle3d::isPointInsideFast pointsInside test failed in stage %d point %d\n", stage, i);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
array< vector3d<T> > pointsOutside;
|
|
pointsOutside.push_back( triangleOrig.pointA - vector3d<T>(1,0,0) );
|
|
pointsOutside.push_back( triangleOrig.pointA - vector3d<T>(0,1,0) );
|
|
pointsOutside.push_back( triangleOrig.pointB + vector3d<T>(1,0,0) );
|
|
pointsOutside.push_back( triangleOrig.pointB - vector3d<T>(0,1,0) );
|
|
pointsOutside.push_back( triangleOrig.pointC - vector3d<T>(1,0,0) );
|
|
pointsOutside.push_back( triangleOrig.pointC + vector3d<T>(1,0,0) );
|
|
pointsOutside.push_back( triangleOrig.pointC + vector3d<T>(0,1,0) );
|
|
pointsOutside.push_back( (triangleOrig.pointA + triangleOrig.pointB)/2 - vector3d<T>(0,1,0) );
|
|
pointsOutside.push_back( (triangleOrig.pointA + triangleOrig.pointC)/2 - vector3d<T>(1,0,0) );
|
|
pointsOutside.push_back( (triangleOrig.pointB + triangleOrig.pointC)/2 + vector3d<T>(1,0,0) );
|
|
|
|
for (u32 stage=0; ; ++stage)
|
|
{
|
|
triangle3d<T> triangle = triangleOrig;
|
|
if ( !stageModifications(stage, triangle) )
|
|
break;
|
|
|
|
for ( u32 i=0; i < pointsOutside.size(); ++i )
|
|
{
|
|
vector3d<T> point = pointsOutside[i];
|
|
stageModifications(stage, point);
|
|
|
|
if ( testIsInside )
|
|
{
|
|
allExpected &= !triangle.isPointInside( point );
|
|
if ( !allExpected )
|
|
{
|
|
logTestString("triangle3d::isPointInside pointsOutside test failed in stage %d point %d\n", stage, i);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ( testIsInsideFast )
|
|
{
|
|
allExpected &= !triangle.isPointInsideFast( point );
|
|
if ( !allExpected )
|
|
{
|
|
logTestString("triangle3d::isPointInsideFast pointsOutside test failed in stage %d point %d\n", stage, i);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
array< vector3d<T> > pointsBorder;
|
|
pointsBorder.push_back( triangleOrig.pointA );
|
|
pointsBorder.push_back( triangleOrig.pointB );
|
|
pointsBorder.push_back( triangleOrig.pointC );
|
|
pointsBorder.push_back( (triangleOrig.pointA + triangleOrig.pointB)/2 );
|
|
pointsBorder.push_back( (triangleOrig.pointA + triangleOrig.pointC)/2 );
|
|
pointsBorder.push_back( (triangleOrig.pointB + triangleOrig.pointC)/2 );
|
|
|
|
for (u32 stage=0; ; ++stage)
|
|
{
|
|
triangle3d<T> triangle = triangleOrig;
|
|
if ( !stageModifications(stage, triangle) )
|
|
break;
|
|
|
|
for ( u32 i=0; i < pointsBorder.size(); ++i )
|
|
{
|
|
vector3d<T> point = pointsBorder[i];
|
|
stageModifications(stage, point);
|
|
|
|
if ( testIsInside )
|
|
{
|
|
allExpected &= triangle.isPointInside( point );
|
|
if ( !allExpected )
|
|
{
|
|
logTestString("triangle3d::isPointInside pointsBorder test failed in stage %d point %d\n", stage, i);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ( testIsInsideFast )
|
|
{
|
|
allExpected &= triangle.isPointInsideFast( point );
|
|
if ( !allExpected )
|
|
{
|
|
logTestString("triangle3d::isPointInsideFast pointsBorder test failed in stage %d point %d\n", stage, i);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return allExpected;
|
|
}
|
|
|
|
// Test the functionality of triangle3d<T>
|
|
bool testTriangle3d(void)
|
|
{
|
|
bool allExpected = true;
|
|
|
|
logTestString("Test getIntersectionWithLine with f32\n");
|
|
{
|
|
triangle3df triangle(
|
|
vector3df(11300.f, 129.411758f, 200.f),
|
|
vector3df(11200.f, 94.117645f, 300.f),
|
|
vector3df(11300.f, 129.411758f, 300.f));
|
|
line3df ray;
|
|
ray.start = vector3df(11250.f, 329.f, 250.f);
|
|
ray.end = vector3df(11250.f, -1000.f, 250.f);
|
|
allExpected &= testGetIntersectionWithLine(triangle, ray);
|
|
}
|
|
logTestString("Test getIntersectionWithLine with f64\n");
|
|
{
|
|
triangle3d<f64> triangle(
|
|
vector3d<f64>(11300., 129.411758, 200.),
|
|
vector3d<f64>(11200., 94.117645, 300.),
|
|
vector3d<f64>(11300., 129.411758, 300.));
|
|
line3d<f64> ray;
|
|
ray.start = vector3d<f64>(11250., 329., 250.);
|
|
ray.end = vector3d<f64>(11250., -1000., 250.);
|
|
allExpected &= testGetIntersectionWithLine(triangle, ray);
|
|
}
|
|
|
|
bool testEigen = triangle3di(vector3di(250, 0, 0), vector3di(0, 0, 500), vector3di(500, 0, 500)).isPointInside(vector3di(300,0,300));
|
|
if ( !testEigen ) // test from Eigen from here: http://irrlicht.sourceforge.net/forum/viewtopic.php?f=7&t=44372&p=254331#p254331
|
|
logTestString("Test isPointInside fails with integers\n");
|
|
allExpected &= testEigen;
|
|
|
|
logTestString("Test isPointInside with f32\n");
|
|
{
|
|
triangle3d<f32> t(vector3d<f32>(-1000,-1000,0), vector3d<f32>(1000,-1000,0), vector3d<f32>(0,1000,0));
|
|
allExpected &= isPointInside(t, true, true);
|
|
}
|
|
|
|
logTestString("Test isPointInside with f64\n");
|
|
{
|
|
triangle3d<f64> t(vector3d<f64>(-1000,-1000,0), vector3d<f64>(1000,-1000,0), vector3d<f64>(0,1000,0));
|
|
allExpected &= isPointInside(t, true, true);
|
|
}
|
|
|
|
logTestString("Test isPointInside with s32\n");
|
|
{
|
|
triangle3d<s32> t(vector3d<s32>(-1000,-1000,0), vector3d<s32>(1000,-1000,0), vector3d<s32>(0,1000,0));
|
|
allExpected &= isPointInside(t, false, true);
|
|
}
|
|
|
|
if(allExpected)
|
|
logTestString("\nAll tests passed\n");
|
|
else
|
|
logTestString("\nFAIL!\n");
|
|
|
|
return allExpected;
|
|
}
|
|
|