Method getVertex

src/collision/PolygonVertexArray.cpp:108–129

Return the coordinates of a given vertex

// Return the coordinates of a given vertex
Vector3 PolygonVertexArray::getVertex(uint32 vertexIndex) const {

    Vector3 vertex;

    if (mVertexDataType == PolygonVertexArray::VertexDataType::VERTEX_FLOAT_TYPE) {
        const float* vertices = (float*)(mVerticesStart + vertexIndex * mVerticesStride);
        vertex.x = decimal(vertices[0]);
        vertex.y = decimal(vertices[1]);
        vertex.z = decimal(vertices[2]);
    }
    else if (mVertexDataType == PolygonVertexArray::VertexDataType::VERTEX_DOUBLE_TYPE) {
        const double* vertices = (double*)(mVerticesStart + vertexIndex * mVerticesStride);
        vertex.x = decimal(vertices[0]);
        vertex.y = decimal(vertices[1]);
        vertex.z = decimal(vertices[2]);
    }
    else {
        assert(false);
    }

    return vertex;
}