Closes #41: Make ray aware of walls - Githubissues

leftiness / hex_math

MIT License

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Closes #41: Make ray aware of walls #61

Closed leftiness closed 7 years ago

leftiness commented 7 years ago

TLDR:

Break before stepping from previous step to current step if a wall would prevent taking that step

Details:

util::line takes a map(point, prism) instead of a set of opaque points
Added util::get_step_direction(point, point), calculate step direction based on sign difference between previous step and current step values
Added Direction::opposite(self), return direction opposite to self
Convert from point to prism with no walls
Return whether a HasWalls has wall in a provided direction
Removed duplicated line/ray tests with 2d functions