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Track texture mapping

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Piotr Dziwinski 2012-10-19 22:37:11 +02:00
parent 0305e0ba17
commit a90cd304ba
1 changed files with 92 additions and 9 deletions
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101
src/graphics/engine/engine.cpp
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@ -812,9 +812,9 @@ EngineObjLevel4& CEngine::AddLevel4(EngineObjLevel3& p3, EngineTriangleType type
}
bool CEngine::AddTriangles(int objRank, const std::vector<VertexTex2>& vertices,
const Material& material, int state,
std::string tex1Name, std::string tex2Name,
float min, float max, bool globalUpdate)
const Material& material, int state,
std::string tex1Name, std::string tex2Name,
float min, float max, bool globalUpdate)
{
if ( objRank < 0 || objRank >= static_cast<int>( m_objects.size() ) )
{
@ -1247,12 +1247,95 @@ bool CEngine::ChangeTextureMapping(int objRank, const Material& mat, int state,
}
bool CEngine::TrackTextureMapping(int objRank, const Material& mat, int state,
const std::string& tex1Name, const std::string& tex2Name,
float min, float max, EngineTextureMapping mode,
float pos, float factor, float tl, float ts, float tt)
const std::string& tex1Name, const std::string& tex2Name,
float min, float max, EngineTextureMapping mode,
float pos, float factor, float tl, float ts, float tt)
{
// TODO track texture mapping: pretty complex code, so leaving it for now
GetLogger()->Trace("CEngine::TrackTextureMapping(): stub!\n");
EngineObjLevel4* triangles = FindTriangles(objRank, mat, state, tex1Name, tex2Name, min, max);
if (triangles == nullptr) return false;
int tNum = triangles->vertices.size();
if (tNum < 12 || tNum % 6 != 0) return false;
std::vector<Gfx::VertexTex2>& vs = triangles->vertices;
while (pos < 0.0f)
pos += 1000000.0f; // never negative!
// TODO: might still be buggy as track animation seems to be choppy
// but the code should work exactly as in original
Math::Vector current;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
if (Math::IsEqual(vs[i].coord.x, vs[j+6].coord.x) &&
Math::IsEqual(vs[i].coord.y, vs[j+6].coord.y))
{
current.x = vs[i].coord.x; // position end link
current.y = vs[i].coord.y;
break;
}
}
}
float ps = 0.0f; // start position on the periphery
float pe = 0.0f;
int is[6] = { 0 }, ie[6] = { 0 };
int tBase = 0;
for (int ti = 0; ti < tNum / 6; ti++)
{
int s = 0;
int e = 0;
for (int i = 0; i < 6; i++)
{
if (Math::IsEqual(vs[tBase + i].coord.x, current.x, 0.0001f) &&
Math::IsEqual(vs[tBase + i].coord.y, current.y, 0.0001f))
{
ie[e++] = i;
}
else
{
is[s++] = i;
}
}
if (s == 3 && e == 3)
{
pe = ps + Math::Point(vs[tBase + is[0]].coord.x - vs[tBase + ie[0]].coord.x,
vs[tBase + is[0]].coord.y - vs[tBase + ie[0]].coord.y).Length() / factor; // end position on the periphery
float pps = ps + pos;
float ppe = pe + pos;
float offset = static_cast<float>( static_cast<int>(pps) );
ppe -= offset;
for (int i = 0; i < 3; i++)
{
vs[tBase + is[i]].texCoord.x = ((ppe * tl) + ts) / tt;
}
}
if (ti >= (tNum / 6) - 1)
break;
for (int i = 0; i < 6; i++)
{
if (!Math::IsEqual(vs[tBase + i+6].coord.x, current.x, 0.0001f) ||
!Math::IsEqual(vs[tBase + i+6].coord.y, current.y, 0.0001f))
{
current.x = vs[tBase + i+6].coord.x; // end next link
current.y = vs[tBase + i+6].coord.y;
break;
}
}
ps = pe; // following start position on the periphery
tBase += 6;
}
return true;
}
@ -3586,7 +3669,7 @@ void CEngine::DrawBackgroundImage()
p2.x = 1.0f;
p2.y = 1.0f;
Math::Vector n = Math::Vector(0.0f, 0.0f, -1.0f); // normal
Math::Vector n = Math::Vector(0.0f, 0.0f, -1.0f); // normal
float u1, u2, v1, v2;
if (m_backgroundFull)