MetzNet
/
dfhack
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Switch to the new random number generator class.

develop
Alexander Gavrilov 2014-03-02 13:42:32 +04:00
parent 983685de8d
commit 9827184ef7
1 changed files with 17 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
plugins/siege-engine.cpp
Unescape Escape View File

@ -11,6 +11,7 @@
#include <modules/Units.h>
#include <modules/Job.h>
#include <modules/Materials.h>
#include <modules/Random.h>
#include <LuaTools.h>
#include <TileTypes.h>
#include <vector>
@ -159,21 +160,13 @@ inline void normalize(float &x, float &y, float &z)
x /= dist; y /= dist; z /= dist;
}
static Random::MersenneRNG rng;
static void random_direction(float &x, float &y, float &z)
{
float a, b, d;
for (;;) {
a = (rand() + 0.5f)*2.0f/RAND_MAX - 1.0f;
b = (rand() + 0.5f)*2.0f/RAND_MAX - 1.0f;
d = a*a + b*b;
if (d < 1.0f)
break;
}
float sq = sqrtf(1-d);
x = 2.0f*a*sq;
y = 2.0f*b*sq;
z = 1.0f - 2.0f*d;
float vec[3];
rng.unitvector(vec, 3);
x = vec[0]; y = vec[1]; z = vec[2];
}
static const int WEAR_TICKS = 806400;
@ -190,8 +183,8 @@ static bool apply_impact_damage(df::item *item, int minv, int maxv)
auto &strength = info.material->strength;
// Use random strain type excluding COMPRESSIVE (conveniently last)
int type = random_int(strain_type::COMPRESSIVE);
int power = minv + random_int(maxv-minv+1);
int type = rng.random(strain_type::COMPRESSIVE);
int power = minv + rng.random(maxv-minv+1);
// High elasticity materials just bend
if (strength.strain_at_yield[type] >= 5000)
@ -1418,8 +1411,8 @@ struct projectile_hook : df::proj_itemst {
// Dabbling always hit in 7x7 area
if (skill < skill_rating::Novice)
{
fail_target.x += random_int(7)-3;
fail_target.y += random_int(7)-3;
fail_target.x += rng.random(7)-3;
fail_target.y += rng.random(7)-3;
aimAtPoint(engine, ProjectilePath(path.origin, fail_target));
return;
}
@ -1427,7 +1420,7 @@ struct projectile_hook : df::proj_itemst {
// Exact hit chance
float hit_chance = 1.04f - powf(0.8f, skill);
if (float(rand())/RAND_MAX < hit_chance)
if (rng.drandom() < hit_chance)
{
aimAtPoint(engine, path);
return;
@ -1437,13 +1430,13 @@ struct projectile_hook : df::proj_itemst {
if (skill <= skill_rating::Proficient)
{
// 5x5
fail_target.x += random_int(5)-2;
fail_target.y += random_int(5)-2;
fail_target.x += rng.random(5)-2;
fail_target.y += rng.random(5)-2;
}
else
{
// 3x3
int idx = random_int(8);
int idx = rng.random(8);
fail_target.x += offsets[idx][0];
fail_target.y += offsets[idx][1];
}
@ -1462,7 +1455,7 @@ struct projectile_hook : df::proj_itemst {
for (int i = 0; i < 50; i++)
{
target = tbase + df::coord(
random_int(tsize.x), random_int(tsize.y), random_int(tsize.z)
rng.random(tsize.x), rng.random(tsize.y), rng.random(tsize.z)
);
if (adjustToTarget(engine, &target))
@ -1876,6 +1869,8 @@ DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_chan
DFhackCExport command_result plugin_init ( color_ostream &out, std::vector <PluginCommand> &commands)
{
rng.init();
if (Core::getInstance().isMapLoaded())
plugin_onstatechange(out, SC_MAP_LOADED);