Question

I’ve got an c-struct array, and want to define a property.
Here is the relative code..

struct Vertex {
    float x, y, z;
    float nx, ny, nz;
    float u, v;
};

@interface Mesh : NSObject{
    Vertex m_vertices[MaxVertices];
}
@property (nonatomic) Vertex m_vertices[MaxVertices];
@end

@implementation Mesh;
@synthesize m_vertices[MaxVertices];
@end

I first wrote like this with an error.
how to set the property with c-struct array, or customlize the setter and getter?
Any tips will be appreciated!

Answer 1

This was a close as I could get.

typedef struct _Vertex {
float x, y, z;
float nx, ny, nz;
float u, v;
} Vertex;

#define MaxVertices 5

@interface Mesh : NSObject{
    Vertex m_verticesX[MaxVertices];
    Vertex *m_vertices;
}
@property (nonatomic) Vertex *m_vertices;
@end

@implementation Mesh;
@synthesize m_vertices;
- (Vertex *)m_vertices
{
    if (!m_vertices)
        m_vertices = m_verticesX;
    return m_vertices;
}
@end

Hope it helps.