AxisPlaneShapes.h

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#ifndef ULT_AXIS_PLANE_SHAPES_INCLUDED
#define ULT_AXIS_PLANE_SHAPES_INCLUDED
 
#include "../ModelData.h"
 
#define UNIT_AXIS_PLANE_VERTEX_TOTAL 4
#define UNIT_AXIS_PLANE_INDEX_TOTAL 6
#define UNIT_AXIS_PLANE_STRIDE sizeof(Ult::stAxisPlaneVertex)
 
namespace Ult
{

 
struct stAxisPlaneVertex
{
    float x,y,z;
    float tu1,tv1;
    float nx,ny,nz;
};

inline bool CreateXZPlaneMesh(float size, ModelData* model)
{
    if (!model) { return false; }
 
    stAxisPlaneVertex PlaneData[UNIT_AXIS_PLANE_VERTEX_TOTAL] = {
        {+1*size, 0, -1*size, 1,0, 0,1,0},
        {-1*size, 0, -1*size, 0,0, 0,1,0},
        {-1*size, 0, +1*size, 0,1, 0,1,0},
        {+1*size, 0, +1*size, 1,1, 0,1,0}
    };
    unsigned int PlaneIndices[UNIT_AXIS_PLANE_INDEX_TOTAL] = {
        0,1,2,
        2,3,0
    };
 
    model->Clear();
    model->AddDescriptorElement(ULT_VERTEX_3F);
    model->AddDescriptorElement(ULT_TEX1_2F);
    model->AddDescriptorElement(ULT_NORMAL_3F);
 
    if (!model->SetVertices(
            ULT_TRI_LIST,
            UNIT_AXIS_PLANE_VERTEX_TOTAL,
            UNIT_AXIS_PLANE_STRIDE,
            (char*)PlaneData)) {
        return false;
    }
    if (!model->SetIndices(
            UNIT_AXIS_PLANE_INDEX_TOTAL,
            PlaneIndices)) {
        return false;
    }
    return true;
}
 
} // namespace Ult
 
#endif // ULT_AXIS_PLANE_SHAPES_INCLUDED