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Small improvements on skid lines

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git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14244 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
auria 2013-10-12 22:51:03 +00:00
parent 89d6f9c302
commit 55e0e4c074
1 changed files with 10 additions and 10 deletions
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20
src/graphics/skid_marks.cpp
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@ -143,14 +143,11 @@ void SkidMarks::update(float dt, bool force_skid_marks,
delta *= m_width; delta *= m_width;
float distance = 0.0f; float distance = 0.0f;
if (m_current > 0) Vec3 start = m_left[m_current]->getCenterStart();
{ Vec3 newPoint = (raycast_left.m_contactPointWS + raycast_right.m_contactPointWS)/2;
Vec3 start = m_left[m_current - 1]->getCenterStart(); // this linear distance does not account for the kart turning, it's true,
Vec3 newPoint = (raycast_left.m_contactPointWS + raycast_right.m_contactPointWS)/2; // but it produces good enough results
// this linear distance does not account for the kart turning, it's true, distance = (newPoint - start).length();
// but it produces good enough results
distance = (newPoint - start).length();
}
m_left [m_current]->add(raycast_left.m_contactPointWS, m_left [m_current]->add(raycast_left.m_contactPointWS,
raycast_left.m_contactPointWS + delta, raycast_left.m_contactPointWS + delta,
@ -271,7 +268,10 @@ void SkidMarks::SkidMarkQuads::add(const Vec3 &left,
video::S3DVertex v; video::S3DVertex v;
v.Color = m_start_color; v.Color = m_start_color;
v.Color.setAlpha(m_start_alpha); if (n == 0)
v.Color.setAlpha(0.0f);
else
v.Color.setAlpha(m_start_alpha);
v.Pos = left.toIrrVector(); v.Pos = left.toIrrVector();
v.Pos.Y += m_z_offset; v.Pos.Y += m_z_offset;
v.Normal = core::vector3df(0, 1, 0); v.Normal = core::vector3df(0, 1, 0);
@ -317,7 +317,7 @@ void SkidMarks::SkidMarkQuads::fade(float f)
a -= (a < m_fade_out ? a : (int)m_fade_out); a -= (a < m_fade_out ? a : (int)m_fade_out);
c.setAlpha(a); c.setAlpha(a);
for(unsigned int i=0; i<Vertices.size(); i++) for(unsigned int i=2; i<Vertices.size(); i++)
{ {
Vertices[i].Color.setAlpha(a); Vertices[i].Color.setAlpha(a);
} }