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/*
* File: fixedarray.h
* Summary: Fixed size 2D vector class that asserts if you do something bad.
* Written by: Jesse Jones
*/
#ifndef FIXARY_H
#define FIXARY_H
#include "fixedvector.h"
// ==========================================================================
// class FixedArray
// ==========================================================================
template <class TYPE, int WIDTH, int HEIGHT> class FixedArray {
//-----------------------------------
// Types
//
public:
typedef TYPE value_type;
typedef TYPE& reference;
typedef const TYPE& const_reference;
typedef TYPE* pointer;
typedef const TYPE* const_pointer;
typedef unsigned long size_type;
typedef long difference_type;
// operator[] should return one of these to avoid breaking
// client code (if inlining is on there won't be a speed hit)
typedef FixedVector<TYPE, HEIGHT> Column;
//-----------------------------------
// Initialization/Destruction
//
public:
~FixedArray() {}
FixedArray() {}
FixedArray(TYPE def)
{
init(def);
}
//-----------------------------------
// API
//
public:
// ----- Size -----
bool empty() const { return WIDTH == 0 || HEIGHT == 0; }
int size() const { return WIDTH*HEIGHT; }
int width() const { return WIDTH; }
int height() const { return HEIGHT; }
// ----- Access -----
Column& operator[](unsigned long index) { return mData[index]; }
const Column& operator[](unsigned long index) const {
return mData[index];
}
template<class Indexer> TYPE& operator () (const Indexer &i) {
return mData[i.x][i.y];
}
template<class Indexer> const TYPE& operator () (const Indexer &i) const {
return mData[i.x][i.y];
}
void init(const TYPE& def) {
for ( int i = 0; i < WIDTH; ++i )
mData[i].init(def);
}
protected:
FixedVector<Column, WIDTH> mData;
};
// A fixed array centered around the origin.
template <class TYPE, int RADIUS> class SquareArray {
//-----------------------------------
// Types
//
public:
typedef TYPE value_type;
typedef TYPE& reference;
typedef const TYPE& const_reference;
typedef TYPE* pointer;
typedef const TYPE* const_pointer;
typedef unsigned long size_type;
typedef long difference_type;
//-----------------------------------
// Initialization/Destruction
//
public:
~SquareArray() {}
SquareArray() {}
SquareArray(TYPE def)
{
init(def);
}
//-----------------------------------
// API
//
public:
// ----- Size -----
bool empty() const { return data.empty(); }
int size() const { return data.size(); }
int width() const { return data.width(); }
int height() const { return data.height(); }
// ----- Access -----
template<class Indexer> TYPE& operator () (const Indexer &i) {
return data[i.x+RADIUS][i.y+RADIUS];
}
template<class Indexer> const TYPE& operator () (const Indexer &i) const {
return data[i.x+RADIUS][i.y+RADIUS];
}
void init(const TYPE& def) {
data.init(def);
}
protected:
FixedArray<TYPE, 2*RADIUS+1, 2*RADIUS+1> data;
};
#endif // FIXARY_H
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