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#include "../util.h"
constexpr double EPS = 1e-6;
#define ll double
double gcd(double x, double /**/) {return x;} //hacky
#include <geometry/formulas.cpp>
#undef ll
#include <geometry/linesAndSegments.cpp>
#include <geometry/lines.cpp>
#include "../geometry.h"
void stress_pointsToLine(ll range) {
ll queries = 0;
for (int tries = 0; tries < 100'000; tries++) {
auto [a, b] = Random::line(range);
line gotA(a, b);
if (real(a) != real(b)) {
gotA.a /= gotA.b;
gotA.c /= gotA.b;
gotA.b /= gotA.b;
} else {
gotA.c /= gotA.a;
gotA.a /= gotA.a;
}
line gotB = pointsToLine(a, b);
if (!same(gotA, gotB)) cerr << "error" << FAIL;
queries++;
}
cerr << "tested pointsToLine: " << queries << endl;
}
void stress_same(ll range) {
ll queries = 0;
for (int tries = 0; tries < 100'000; tries++) {
auto [a, b] = Random::line(range);
auto [c, d] = Random::line(range);
line lAB = pointsToLine(a, b);
line lCD = pointsToLine(c, d);
auto got = same(lAB, lCD);
auto expected = pointOnLine(a, b, c) && pointOnLine(a, b, d);
if (got != expected) cerr << "error" << FAIL;
queries++;
}
cerr << "tested same: " << queries << endl;
}
void stress_parallel(ll range) {
ll queries = 0;
for (int tries = 0; tries < 100'000; tries++) {
auto [a, b] = Random::line(range);
auto [c, d] = Random::line(range);
line lAB = pointsToLine(a, b);
line lCD = pointsToLine(c, d);
auto got = parallel(lAB, lCD);
auto expected = cross(b-a, d-c) == 0;
if (got != expected) cerr << "error" << FAIL;
queries++;
}
cerr << "tested parallel: " << queries << endl;
}
void stress_intersect(ll range) {
ll queries = 0;
for (int tries = 0; tries < 100'000; tries++) {
auto [a, b] = Random::line(range);
auto [c, d] = Random::line(range);
line lAB = pointsToLine(a, b);
line lCD = pointsToLine(c, d);
if (same(lAB, lCD)) continue;
pt gotPT;
auto got = intersect(lAB, lCD, gotPT);
auto expected = lineIntersection(a, b, c, d);
if (got != expected) cerr << "error: 1" << FAIL;
if (got) {
pt expectedPt = lineIntersection2(a, b, c, d);
if (float_error(real(gotPT), real(expectedPt)) > 1e-6) cerr << "error: 2" << FAIL;
if (float_error(imag(gotPT), imag(expectedPt)) > 1e-6) cerr << "error: 2" << FAIL;
}
queries++;
}
cerr << "tested intersect: " << queries << endl;
}
int main() {
stress_pointsToLine(100);
stress_pointsToLine(100'000);
stress_same(10);
stress_same(100);
stress_same(1'000'000'000);//no precision issue since this will alwas be false...
stress_parallel(10);
stress_parallel(100);
stress_parallel(1'000'000'000);
stress_intersect(100);
stress_intersect(1'000'000'000);
}
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