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Allow skid marks to be skinned (features requested by samuncle, he says he will have a nice new texture coming soon)

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git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14241 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
auria 2013-10-12 21:29:55 +00:00
parent d8cfc75557
commit a6a336c94a
2 changed files with 41 additions and 10 deletions
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39
src/graphics/skid_marks.cpp
View File

@ -37,10 +37,19 @@ SkidMarks::SkidMarks(const AbstractKart& kart, float width) : m_kart(kart)
{
m_width = width;
m_material = new video::SMaterial();
m_material->MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
m_material->MaterialType = video::EMT_ONETEXTURE_BLEND;
m_material->MaterialTypeParam =
pack_textureBlendFunc(video::EBF_SRC_ALPHA,
video::EBF_ONE_MINUS_SRC_ALPHA,
video::EMFN_MODULATE_1X,
video::EAS_TEXTURE | video::EAS_VERTEX_COLOR);
m_material->AmbientColor = video::SColor(128, 0, 0, 0);
m_material->DiffuseColor = video::SColor(128, 16, 16, 16);
//m_material->AmbientColor = video::SColor(255, 255, 255, 255);
//m_material->DiffuseColor = video::SColor(255, 255, 255, 255);
m_material->setFlag(video::EMF_ANISOTROPIC_FILTER, true);
m_material->Shininess = 0;
m_material->TextureLayer[0].Texture = irr_driver->getTexture("skidmarks.png");
m_skid_marking = false;
m_current = -1;
} // SkidMark
@ -133,10 +142,20 @@ void SkidMarks::update(float dt, bool force_skid_marks,
delta.normalize();
delta *= m_width;
float distance = 0.0f;
if (m_current > 0)
{
Vec3 previousPoint = m_left[m_current - 1]->getMiddlePoint();
Vec3 newPoint = (raycast_left.m_contactPointWS + raycast_right.m_contactPointWS)/2;
distance = m_left[m_current - 1]->getDistance() + (newPoint - previousPoint).length();
}
m_left [m_current]->add(raycast_left.m_contactPointWS,
raycast_left.m_contactPointWS + delta);
raycast_left.m_contactPointWS + delta,
distance);
m_right[m_current]->add(raycast_right.m_contactPointWS-delta,
raycast_right.m_contactPointWS);
raycast_right.m_contactPointWS,
distance);
// Adjust the boundary box of the mesh to include the
// adjusted aabb of its buffers.
core::aabbox3df aabb=m_nodes[m_current]->getMesh()
@ -163,14 +182,14 @@ void SkidMarks::update(float dt, bool force_skid_marks,
SkidMarkQuads *smq_left =
new SkidMarkQuads(raycast_left.m_contactPointWS,
raycast_left.m_contactPointWS + delta,
m_material, m_avoid_z_fighting, custom_color);
m_material, 0.0f, m_avoid_z_fighting, custom_color);
scene::SMesh *new_mesh = new scene::SMesh();
new_mesh->addMeshBuffer(smq_left);
SkidMarkQuads *smq_right =
new SkidMarkQuads(raycast_right.m_contactPointWS - delta,
raycast_right.m_contactPointWS,
m_material, m_avoid_z_fighting, custom_color);
m_material, 0.0f, m_avoid_z_fighting, custom_color);
new_mesh->addMeshBuffer(smq_right);
scene::IMeshSceneNode *new_node = irr_driver->addMesh(new_mesh);
#ifdef DEBUG
@ -215,12 +234,15 @@ void SkidMarks::update(float dt, bool force_skid_marks,
SkidMarks::SkidMarkQuads::SkidMarkQuads(const Vec3 &left,
const Vec3 &right,
video::SMaterial *material,
float distance,
float z_offset,
video::SColor* custom_color)
: scene::SMeshBuffer()
{
m_middle_point = (left + right)/2;
m_z_offset = z_offset;
m_fade_out = 0.0f;
m_distance = distance;
m_start_color = (custom_color != NULL ? *custom_color :
video::SColor(255,
@ -230,7 +252,7 @@ SkidMarks::SkidMarkQuads::SkidMarkQuads(const Vec3 &left,
Material = *material;
m_aabb = core::aabbox3df(left.toIrrVector());
add(left, right);
add(left, right, distance);
} // SkidMarkQuads
@ -240,7 +262,8 @@ SkidMarks::SkidMarkQuads::SkidMarkQuads(const Vec3 &left,
* \param left,right Left and right coordinates.
*/
void SkidMarks::SkidMarkQuads::add(const Vec3 &left,
const Vec3 &right)
const Vec3 &right,
float distance)
{
// The skid marks must be raised slightly higher, otherwise it blends
// too much with the track.
@ -252,9 +275,11 @@ void SkidMarks::SkidMarkQuads::add(const Vec3 &left,
v.Pos = left.toIrrVector();
v.Pos.Y += m_z_offset;
v.Normal = core::vector3df(0, 1, 0);
v.TCoords = core::vector2df(0.0f, distance*0.5f);
Vertices.push_back(v);
v.Pos = right.toIrrVector();
v.Pos.Y += m_z_offset;
v.TCoords = core::vector2df(1.0f, distance*0.5f);
Vertices.push_back(v);
// Out of the box Irrlicht only supports triangle meshes and not
// triangle strips. Since this is a strip it would be more efficient

12
src/graphics/skid_marks.hpp
View File

@ -79,15 +79,21 @@ private:
video::SColor m_start_color;
Vec3 m_middle_point;
float m_distance;
public:
SkidMarkQuads (const Vec3 &left, const Vec3 &right,
video::SMaterial *material, float z_offset,
video::SColor* custom_color = NULL);
video::SMaterial *material, float distance,
float z_offset, video::SColor* custom_color = NULL);
void add (const Vec3 &left,
const Vec3 &right);
const Vec3 &right,
float distance);
void fade (float f);
/** Returns the aabb of this skid mark quads. */
const core::aabbox3df &getAABB() { return m_aabb; }
const Vec3& getMiddlePoint() const { return m_middle_point; }
float getDistance() const { return m_distance; }
}; // SkidMarkQuads
// ------------------------------------------------------------------------