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WINTERMUTE: Implement getHeight function of AdSceneGeometry

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This commit is contained in:
Gunnar Birke 2020-06-05 17:17:21 +02:00 committed by Paweł Kołodziejski
parent 4c212de5aa
commit 5bbe80f3aa
1 changed files with 29 additions and 18 deletions
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47
engines/wintermute/ad/ad_scene_geometry.cpp
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@ -47,6 +47,7 @@
#include "engines/wintermute/base/gfx/opengl/light3d.h"
#include "engines/wintermute/base/gfx/opengl/loader3ds.h"
#include "engines/wintermute/base/gfx/opengl/mesh3ds.h"
#include "engines/wintermute/math/math_util.h"
#include "engines/wintermute/system/sys_class_registry.h"
#include "engines/wintermute/wintermute.h"
#include "math/glmath.h"
@ -567,28 +568,38 @@ float AdSceneGeometry::getHeightAt(Math::Vector3d pos, float tolerance, bool *in
Math::Vector3d intersection;
Math::Vector3d dir = Math::Vector3d(0, -1, 0);
warning("AdSceneGeometry::getHeightAt not yet implemented");
pos.y() += tolerance;
// Pos.y += Tolerance;
bool intFoundTmp = false;
// bool int_found = false;
// for(int i=0; i<_planes.size(); i++){
// for(int j=0; j<_planes[i]->m_Mesh->m_NumFaces; j++){
// if(C3DUtils::IntersectTriangle(
// Pos, dir,
// _planes[i]->m_Mesh->m_Vertices[_planes[i]->m_Mesh->m_Faces[j].m_Vertices[0]].m_Pos,
// _planes[i]->m_Mesh->m_Vertices[_planes[i]->m_Mesh->m_Faces[j].m_Vertices[1]].m_Pos,
// _planes[i]->m_Mesh->m_Vertices[_planes[i]->m_Mesh->m_Faces[j].m_Vertices[2]].m_Pos,
// &intersection.x, &intersection.y, &intersection.z)){
// if(intersection.y > Pos.y+Tolerance) continue; // only fall down
// if(!int_found || fabs(ret - Pos.y) > fabs(intersection.y - Pos.y)) ret = intersection.y;
// int_found = true;
// }
for (uint32 i = 0; i < _planes.size(); i++) {
for (int j = 0; j < _planes[i]->_mesh->faceCount(); j++) {
uint16 *triangle = _planes[i]->_mesh->getFace(j);
float *v0 = _planes[i]->_mesh->getVertexPosition(triangle[0]);
float *v1 = _planes[i]->_mesh->getVertexPosition(triangle[1]);
float *v2 = _planes[i]->_mesh->getVertexPosition(triangle[2]);
// }
// }
if (lineIntersectsTriangle(pos, dir,
Math::Vector3d(v0[0], v0[1], v0[2]),
Math::Vector3d(v1[0], v1[1], v1[2]),
Math::Vector3d(v2[0], v2[1], v2[2]),
intersection.x(), intersection.y(), intersection.z())) {
if (intersection.y() > pos.y() + tolerance) {
continue; // only fall down
}
// if(IntFound) *IntFound = int_found;
if (!intFoundTmp || ABS(ret - pos.y()) > ABS(intersection.y() - pos.y())) {
ret = intersection.y();
}
intFoundTmp = true;
}
}
}
if (intFound) {
*intFound = intFoundTmp;
}
return ret;
}