• Simon Hobbs (8/8) Apr 15 2004 Just started looking at D (from a game programming perspective) and it s...
• Andy Friesen (11/20) Apr 15 2004 You can override operator() and make it static like so:

Simon Hobbs <Simon_member pathlink.com> writes:

Just started looking at D (from a game programming perspective) and it seems
superb in almost every way, except it doesn't appear that structs can have
constructors. Is this correct?

If so, how am I to implement a usable Vector4 type (i.e. an array of 4 floats)?
And please don't tell me to make it a class - the overhead is not acceptable -
this has to be a value type.

Here's hoping I'm missing something.

Si

Andy Friesen <andy ikagames.com> writes:

Simon Hobbs wrote:
 Just started looking at D (from a game programming perspective) and it seems
 superb in almost every way, except it doesn't appear that structs can have
 constructors. Is this correct?
 
 If so, how am I to implement a usable Vector4 type (i.e. an array of 4 floats)?
 And please don't tell me to make it a class - the overhead is not acceptable -
 this has to be a value type.
 
 Here's hoping I'm missing something.

You can override operator() and make it static like so:

struct Vec4
{
    float w,x,y,z;
    static Vec4 opCall(float W, float X, float Y, float Z) {
       ...
    }
}

Vec4 blah = Vec4(0,0,0,1);

  -- andy