visualizations

Programmatic visualizations
git clone git://git.laack.co/visualizations.git
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utils.cpp (567B)

      1 #include "utils.hpp"
      2 #include <cstdlib>
      3 
      4 float square(float x) {
      5     return x * x;
      6 }
      7 
      8 // call srand before invocation as this is a pure function.
      9 Vector2 randomPosition(float xMax, float yMax) {
     10     float r1 = static_cast <float> (rand()) / static_cast <float> (RAND_MAX) * xMax;
     11     float r2 = static_cast <float> (rand()) / static_cast <float> (RAND_MAX) * yMax;
     12     Vector2 v {r1,r2};
     13     return v;
     14 }
     15 
     16 float distanceSquared(Vector2 v1, Vector2 v2) {
     17     float xSquare = square(v1.x - v2.x);
     18     float ySquare = square(v1.y - v2.y);
     19     return xSquare + ySquare;
     20 }