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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-03-03 01:25:15 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-03-03 01:25:15 +0000 |
| commit | 253a0b73f0975d8f14c3a3f2a06675b53c736071 (patch) | |
| tree | 71cd0bf5604f7dfb07ed7022c1358a8e2aa91f6a /lib/maths.cpp | |
| parent | Create and use a shader program for things with absolute position (diff) | |
| download | ilt-253a0b73f0975d8f14c3a3f2a06675b53c736071.tar.bz2 ilt-253a0b73f0975d8f14c3a3f2a06675b53c736071.tar.xz ilt-253a0b73f0975d8f14c3a3f2a06675b53c736071.zip | |
Simplify a lot of code with sincosf
Diffstat (limited to 'lib/maths.cpp')
| -rw-r--r-- | lib/maths.cpp | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/lib/maths.cpp b/lib/maths.cpp index 60413f4..5800b1b 100644 --- a/lib/maths.cpp +++ b/lib/maths.cpp @@ -112,11 +112,7 @@ find_arc_centre(glm::vec2 as, float entrys, glm::vec2 bs, float entrye) if (as == bs) { return {as, false}; } - const auto perps = entrys + half_pi; - const auto perpe = entrye - half_pi; - const glm::vec2 ad {std::sin(perps), std::cos(perps)}; - const glm::vec2 bd {std::sin(perpe), std::cos(perpe)}; - return find_arc_centre(as, ad, bs, bd); + return find_arc_centre(as, sincosf(entrys + half_pi), bs, sincosf(entrye - half_pi)); } std::pair<glm::vec2, bool> @@ -135,11 +131,7 @@ std::pair<float, float> find_arcs_radius(glm::vec2 start, float entrys, glm::vec2 end, float entrye) { const auto getrad = [&](float leftOrRight) { - const auto perps = entrys + leftOrRight; - const auto perpe = entrye + leftOrRight; - const glm::vec2 ad {std::sin(perps), std::cos(perps)}; - const glm::vec2 bd {std::sin(perpe), std::cos(perpe)}; - return find_arcs_radius(start, ad, end, bd); + return find_arcs_radius(start, sincosf(entrys + leftOrRight), end, sincosf(entrye + leftOrRight)); }; return {getrad(-half_pi), getrad(half_pi)}; } |