void DebugDrawer::buildQuad(const Ogre::Vector3 *vertices,
const Ogre::ColourValue& colour,
float alpha)
{
int index = addLineVertex(vertices[0], Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
addLineVertex(vertices[1], Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
addLineVertex(vertices[2], Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
addLineVertex(vertices[3], Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
for (int i = 0; i < 4; ++i) addLineIndices(index + i, index + ((i + 1) % 4));
}
void DebugDrawer::buildLine(
const Ogre::Vector3& start,
const Ogre::Vector3& end,
const Ogre::ColourValue& colour,
float alpha)
{
const int i = addLineVertex(
start, Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
addLineVertex(end, Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
addLineIndices(i, i + 1);
}
void DebugDrawer::buildCuboid(const Ogre::Vector3 *vertices,
const Ogre::ColourValue& colour,
float alpha)
{
int index = addLineVertex(vertices[0], Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
for (int i = 1; i < 8; ++i) addLineVertex(vertices[i], Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
for (int i = 0; i < 4; ++i) addLineIndices(index + i, index + ((i + 1) % 4));
for (int i = 4; i < 8; ++i) addLineIndices(index + i, i == 7 ? index + 4 : index + i + 1);
addLineIndices(index + 1, index + 5);
addLineIndices(index + 2, index + 4);
addLineIndices(index, index + 6);
addLineIndices(index + 3, index + 7);
}
void DebugDrawer::buildCylinder(const Ogre::Vector3 ¢re,
float radius,
int segmentsCount,
float height,
const Ogre::ColourValue& colour,
float alpha)
{
int index = linesIndex;
float increment = 2 * Ogre::Math::PI / segmentsCount;
float angle = 0.0f;
// Top circle
for (int i = 0; i < segmentsCount; i++)
{
addLineVertex(Ogre::Vector3(centre.x + radius * Ogre::Math::Cos(angle), centre.y + height / 2, centre.z + radius * Ogre::Math::Sin(angle)),
Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
angle += increment;
}
angle = 0.0f;
// Bottom circle
for (int i = 0; i < segmentsCount; i++)
{
addLineVertex(Ogre::Vector3(centre.x + radius * Ogre::Math::Cos(angle), centre.y - height / 2, centre.z + radius * Ogre::Math::Sin(angle)),
Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
angle += increment;
}
for (int i = 0; i < segmentsCount; i++)
{
addLineIndices(index + i, i + 1 < segmentsCount ? index + i + 1 : index);
addLineIndices(segmentsCount + index + i, i + 1 < segmentsCount ? segmentsCount + index + i + 1 : segmentsCount + index);
addLineIndices(index + i, segmentsCount + index + i);
}
}
void DebugDrawer::buildCircle(const Ogre::Vector3 ¢re,
float radius,
int segmentsCount,
const Ogre::ColourValue& colour,
float alpha)
{
int index = linesIndex;
float increment = 2 * Ogre::Math::PI / segmentsCount;
float angle = 0.0f;
for (int i = 0; i < segmentsCount; i++)
{
addLineVertex(Ogre::Vector3(centre.x + radius * Ogre::Math::Cos(angle), centre.y, centre.z + radius * Ogre::Math::Sin(angle)),
Ogre::ColourValue(colour.r, colour.g, colour.b, alpha));
angle += increment;
}
for (int i = 0; i < segmentsCount; i++)
addLineIndices(index + i, i + 1 < segmentsCount ? index + i + 1 : index);
}
