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author | Adrian Kummerlaender | 2016-12-10 15:39:39 +0100 |
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committer | Adrian Kummerlaender | 2016-12-10 15:39:39 +0100 |
commit | efe0aeed5f1854628df8bace645a072d569fe7b9 (patch) | |
tree | 290402d8cb55e6599cac6b452ef04c2ce26d485b /src/box_traverser.h | |
parent | 839e1335d9f58cd4b681163e14299efe1eec5eb1 (diff) | |
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Introduce `BoxIndicator` and `BoxTraverser` helper classes
`BoxIndicator` implements an indicator function for the world area. Together with `BoxTraverser` it is used to simplifiy action validation and area traversion.
Diffstat (limited to 'src/box_traverser.h')
-rw-r--r-- | src/box_traverser.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/box_traverser.h b/src/box_traverser.h new file mode 100644 index 0000000..1bc0edd --- /dev/null +++ b/src/box_traverser.h @@ -0,0 +1,26 @@ +#ifndef LIFE_SRC_BOX_TRAVERSER_ +#define LIFE_SRC_BOX_TRAVERSER_ + +#include <functional> + +#include "box_indicator.h" + +namespace life { +namespace util { + +struct BoxTraverser : public BoxIndicator { + using BoxIndicator::BoxIndicator; + + void for_each(const std::function<void(std::size_t, std::size_t)> f) const { + for ( std::size_t x = this->a_x_; x < this->b_x_; x++ ) { + for ( std::size_t y = this->a_y_; y < this->b_y_; y++ ) { + f(x, y); + } + } + } +}; + +} +} + +#endif // LIFE_SRC_BOX_TRAVERSER_ |