mirror of
https://github.com/4jcraft/4jcraft.git
synced 2026-04-24 15:43:38 +00:00
93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
#include "../../Platform/stdafx.h"
|
|
#include "../../Headers/net.minecraft.world.entity.h"
|
|
#include "../../Headers/net.minecraft.world.phys.h"
|
|
#include "RandomPos.h"
|
|
#include <optional>
|
|
|
|
Vec3 RandomPos::tempDir = Vec3(0, 0, 0);
|
|
|
|
std::optional<Vec3> RandomPos::getPos(
|
|
std::shared_ptr<PathfinderMob> mob, int xzDist, int yDist,
|
|
int quadrant /*=-1*/) // 4J - added quadrant
|
|
{
|
|
return generateRandomPos(mob, xzDist, yDist, nullptr, quadrant);
|
|
}
|
|
|
|
std::optional<Vec3> RandomPos::getPosTowards(std::shared_ptr<PathfinderMob> mob,
|
|
int xzDist, int yDist,
|
|
Vec3* towardsPos) {
|
|
tempDir.x = towardsPos->x - mob->x;
|
|
tempDir.y = towardsPos->y - mob->y;
|
|
tempDir.z = towardsPos->z - mob->z;
|
|
return generateRandomPos(mob, xzDist, yDist, &tempDir);
|
|
}
|
|
|
|
std::optional<Vec3> RandomPos::getPosAvoid(std::shared_ptr<PathfinderMob> mob,
|
|
int xzDist, int yDist,
|
|
Vec3* avoidPos) {
|
|
tempDir.x = mob->x - avoidPos->x;
|
|
tempDir.y = mob->y - avoidPos->y;
|
|
tempDir.z = mob->z - avoidPos->z;
|
|
return generateRandomPos(mob, xzDist, yDist, &tempDir);
|
|
}
|
|
|
|
std::optional<Vec3> RandomPos::generateRandomPos(
|
|
std::shared_ptr<PathfinderMob> mob, int xzDist, int yDist, Vec3* dir,
|
|
int quadrant /*=-1*/) // 4J - added quadrant
|
|
{
|
|
Random* random = mob->getRandom();
|
|
bool hasBest = false;
|
|
int xBest = 0, yBest = 0, zBest = 0;
|
|
float best = -99999;
|
|
|
|
// 4J Stu - restrict is a reserved keyword
|
|
bool bRestrict;
|
|
if (mob->hasRestriction()) {
|
|
double restDist =
|
|
mob->getRestrictCenter()->distSqr(
|
|
Mth::floor(mob->x), Mth::floor(mob->y), Mth::floor(mob->z)) +
|
|
4;
|
|
double radius = mob->getRestrictRadius() + xzDist;
|
|
bRestrict = restDist < radius * radius;
|
|
} else
|
|
bRestrict = false;
|
|
|
|
for (int i = 0; i < 10; i++) {
|
|
int xt, yt, zt;
|
|
// 4J - added quadrant here so that we can choose to select positions
|
|
// only within the one quadrant. Passing a parameter of -1 will lead to
|
|
// normal java behaviour
|
|
if (quadrant == -1) {
|
|
xt = random->nextInt(2 * xzDist) - xzDist;
|
|
zt = random->nextInt(2 * xzDist) - xzDist;
|
|
} else {
|
|
int sx = ((quadrant & 1) ? -1 : 1);
|
|
int sz = ((quadrant & 2) ? -1 : 1);
|
|
xt = random->nextInt(xzDist) * sx;
|
|
zt = random->nextInt(xzDist) * sz;
|
|
}
|
|
yt = random->nextInt(2 * yDist) - yDist;
|
|
|
|
if (dir != nullptr && xt * dir->x + zt * dir->z < 0) continue;
|
|
|
|
xt += Mth::floor(mob->x);
|
|
yt += Mth::floor(mob->y);
|
|
zt += Mth::floor(mob->z);
|
|
|
|
if (bRestrict && !mob->isWithinRestriction(xt, yt, zt)) continue;
|
|
float value = mob->getWalkTargetValue(xt, yt, zt);
|
|
if (value > best) {
|
|
best = value;
|
|
xBest = xt;
|
|
yBest = yt;
|
|
zBest = zt;
|
|
hasBest = true;
|
|
}
|
|
}
|
|
if (hasBest) {
|
|
return Vec3(xBest, yBest, zBest);
|
|
}
|
|
|
|
return std::nullopt;
|
|
}
|