3a2fa73f2d
account that different platforms will likely handle them differently, resulting in diferent starsystems being generated between platforms.
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
#include "sector.h"
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#define SYS_NAME_FLAGS 32
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static const char* sys_names[SYS_NAME_FLAGS] =
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{ "en", "la", "can", "be", "and", "phi", "eth", "ol", "ve", "ho", "a",
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"lia", "an", "ar", "ur", "mi", "in", "ti", "qu", "so", "ed", "ess",
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"ex", "io", "ce", "ze", "fa", "ay", "wa", "da", "ack", "gre" };
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Sector::Sector(int x, int y) {
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unsigned long _init[2] = { x, y };
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sx = x; sy = y;
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MTRand rng(_init, 2);
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m_numSystems = rng.Int32(3,6);
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for(int i = 0; i < m_numSystems; i++) {
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System s;
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s.p.x = rng.Double(SIZE);
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s.p.y = rng.Double(SIZE);
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s.p.z = rng.Double(2*SIZE)-SIZE;
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s.name = GenName(rng);
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float spec = rng.Int32(1000000);
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/* Frequences are from our friends over at wikipedia. ^.^ */
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if(spec < 1) {
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s.primaryStarClass = StarSystem::TYPE_STAR_O;
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} else if(spec < 1300) {
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s.primaryStarClass = StarSystem::TYPE_STAR_B;
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} else if(spec < 7300) {
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s.primaryStarClass = StarSystem::TYPE_STAR_A;
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} else if(spec < 37300) {
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s.primaryStarClass = StarSystem::TYPE_STAR_F;
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} else if(spec < 113300) {
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s.primaryStarClass = StarSystem::TYPE_STAR_G;
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} else if(spec < 234300) {
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s.primaryStarClass = StarSystem::TYPE_STAR_K;
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} else {
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s.primaryStarClass = StarSystem::TYPE_STAR_M;
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}
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m_systems.push_back(s);
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}
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}
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float Sector::DistanceBetween(const Sector* a, int sysIdxA, const Sector* b, int sysIdxB) {
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vector3f dv = a->m_systems[sysIdxA].p - b->m_systems[sysIdxB].p;
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dv += Sector::SIZE*vector3f(a->sx - b->sx, a->sy - b->sy, 0);
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return dv.Length();
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}
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std::string Sector::GenName(MTRand& rng) {
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std::string name;
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int len = rng.Int32(2, 3);
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for(int i = 0; i < len; i++) {
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name += sys_names[rng.Int32(0, SYS_NAME_FLAGS-1)];
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}
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name[0] = toupper(name[0]);
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return name;
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}
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