X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=src%2FMoof%2FAabb.cc;h=c844251b1d0551b2fcf9c94a8ddf2929c11baf6e;hp=d81c971f78947d61a0df5d5b0de4344c46f93b16;hb=72d4af22710317acffab861421c4364b1780b6fe;hpb=493ddb59a8620b49dfa0ff62ce93395ebfd02e86 diff --git a/src/Moof/Aabb.cc b/src/Moof/Aabb.cc index d81c971..c844251 100644 --- a/src/Moof/Aabb.cc +++ b/src/Moof/Aabb.cc @@ -28,11 +28,83 @@ #include #include +#include +#include namespace Mf { +void Aabb::getOctant(Aabb& octant, int num) const +{ + Vector3 mid = getCenter(); + + switch (num) + { + case 0: + octant.init(Vector3(min[0], min[1], mid[2]), + Vector3(mid[0], mid[1], max[2])); + break; + case 1: + octant.init(Vector3(mid[0], min[1], mid[2]), + Vector3(max[0], mid[1], max[2])); + break; + case 2: + octant.init(mid, max); + break; + case 3: + octant.init(Vector3(min[0], mid[1], mid[2]), + Vector3(mid[0], max[1], max[2])); + break; + case 4: + octant.init(min, mid); + break; + case 5: + octant.init(Vector3(mid[0], min[1], min[2]), + Vector3(max[0], mid[1], mid[2])); + break; + case 6: + octant.init(Vector3(mid[0], mid[1], min[2]), + Vector3(max[0], max[1], mid[2])); + break; + case 7: + octant.init(Vector3(min[0], mid[1], min[2]), + Vector3(mid[0], max[1], mid[2])); + break; + } +} + + +void Aabb::getCorners(Vector3 corners[8]) const +{ + corners[0][0] = min[0]; corners[0][1] = min[1]; corners[0][2] = max[2]; + corners[1][0] = max[0]; corners[1][1] = min[1]; corners[1][2] = max[2]; + corners[2][0] = max[0]; corners[2][1] = max[1]; corners[2][2] = max[2]; + corners[3][0] = min[0]; corners[3][1] = max[1]; corners[3][2] = max[2]; + corners[4][0] = min[0]; corners[4][1] = min[1]; corners[4][2] = min[2]; + corners[5][0] = max[0]; corners[5][1] = min[1]; corners[5][2] = min[2]; + corners[6][0] = max[0]; corners[6][1] = max[1]; corners[6][2] = min[2]; + corners[7][0] = min[0]; corners[7][1] = max[1]; corners[7][2] = min[2]; +} + + +void Aabb::encloseVertices(const Vector3 vertices[], unsigned count) +{ + min = vertices[0]; + max = vertices[0]; + + for (unsigned i = 1; i < count; ++i) + { + if (vertices[i][0] < min[0]) min[0] = vertices[i][0]; + if (vertices[i][0] > max[0]) max[0] = vertices[i][0]; + if (vertices[i][1] < min[1]) min[1] = vertices[i][1]; + if (vertices[i][1] > max[1]) max[1] = vertices[i][1]; + if (vertices[i][2] < min[2]) min[2] = vertices[i][2]; + if (vertices[i][2] > max[2]) max[2] = vertices[i][2]; + } +} + + void Aabb::draw(Scalar alpha) const { Scalar vertices[] = {min[0], min[1], min[2], @@ -52,14 +124,23 @@ void Aabb::draw(Scalar alpha) const 4, 5, 6, 7}; glEnableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); glVertexPointer(3, GL_SCALAR, 0, vertices); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + Texture::resetBind(); + glDrawElements(GL_QUADS, sizeof(indices), GL_UNSIGNED_BYTE, indices); + + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + //glDisableClientState(GL_VERTEX_ARRAY); + + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); } bool Aabb::isVisible(const Camera& cam) const { - return cam.getFrustum().checkAabb(*this); + return cam.getFrustum().containsAabb(*this); }