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Add direction_next and direction_prev helpers

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Richard Fine
2019-08-26 18:50:50 +01:00
parent 9123fa74d3
commit caa6ad71c7
1 changed files with 16 additions and 0 deletions
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16
src/openrct2/world/Location.hpp
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@@ -288,6 +288,22 @@ constexpr Direction ALL_DIRECTIONS[] = { 0, 1, 2, 3 };
return dir < 4;
}
/**
* Given a direction, return the next cardinal direction, wrapping around if necessary. (TODO: Figure out if this is CW or CCW)
*/
[[maybe_unused]] static constexpr Direction direction_next(Direction dir)
{
return (dir + 1) & 0x03;
}
/**
* Given a direction, return the previous cardinal direction, wrapping around if necessary. (TODO: Figure out if this is CW or CCW)
*/
[[maybe_unused]] static constexpr Direction direction_prev(Direction dir)
{
return (dir - 1) & 0x03;
}
struct CoordsXYZD : public CoordsXYZ
{
Direction direction = 0;