Help with declaring C++ structure, with a float array as one of its members.

Question

I was wondering if anyone could spot what is wrong with my structure declaration and use. At the moment I have a structure and wish to store float array as one of it's members.

My code:

struct Player{
float x[12];
float y[12];
float red,green,blue;
float r_leg, l_leg;
int poly[3];
bool up,down;
};

I then tried filling the struct:

float xcords[12] = {1,1,1,1,1,1,1,1,1,1,1,1 };
float ycords[12] = {1,1,1,1,1,1,1,1,1,1,1,1 };
Player player = {xcords,ycords,1,1,1,2,2,true,true};

Error:

1>.\template_with_console.cpp(35) : error C2440: 'initializing' : cannot convert from 'float [12]' to 'float'
1>        There is no context in which this conversion is possible
1>.\template_with_console.cpp(35) : error C2440: 'initializing' : cannot convert from 'float [12]' to 'float'
1>        There is no context in which this conversion is possible

Answer 1

Try

Player player = {{1,1,1,1,1,1,1,1,1,1,1,1 },
                 {1,1,1,1,1,1,1,1,1,1,1,1 },
                 1,1,1,
                 2,2,
                 {},
                 true,true};

Answer 2

I think you're expecting the initialization to copy the elements of each array into your structure. Try initializing the array elements in your structure individually, say with a for loop.

There is no "constructor" for a float array that will copy the elements of another array.

Answer 3

Arrays decay to pointer-to-first-element of the array in most contexts as is the case with xcords and ycords. You cannot initialize the struct like this. So, you have to initialize the members explicitly:

Player player = {
        {1,1,1,1,1,1,1,1,1,1,1,1 }, // xcords
        {1,1,1,1,1,1,1,1,1,1,1,1 }, // ycords
        1,1,1,                      // red, green, blue
        2,2,                        // right, left
        {0,1,2},                    // poly[3]   -- missing?          
        true,true};                 // up, down

You are also missing initializers for poly[3] if I understand correctly. Put in the appropriate values. Otherwise there will be default initialization -- is that what you want?