"""Run actual fixture placement geometry; protect native clearance/stock boundary."""
import re
from policy_harness import ROOT, body, run
p = ROOT / 'addons/ai/Scripts/Game/ERR/ERR_NativeMortarCourierProbe.c'
text = p.read_text()
geometry = body(p, 'static vector StorageOffset(')
count = int(re.search(r'STORAGE_CANDIDATES = (\d+)', text).group(1))
required = int(re.search(r'STORAGE_COUNT = (\d+)', text).group(1))
assert count == 64 and required == 5
assert '%' not in geometry, 'Use native Math.Mod; C++ remainder hides Enforce errors'
run('''#include <cassert>
#include <cmath>
#include <vector>
struct vector {float x,y,z;static const vector Zero;};const vector vector::Zero{0,0,0};
vector Vector(float x,float y,float z){return {x,y,z};}
namespace Math {int Mod(int a,int b){return a%b;}}
constexpr int STORAGE_CANDIDATES=64;
''' + geometry.replace('Math.', 'Math::').replace('vector.Zero', 'vector::Zero') + '''
int main(){
 std::vector<vector> seen;
 for(int i=0;i<STORAGE_CANDIDATES;i++){
  auto p=StorageOffset(i);
  assert(p.y==0&&p.x>=20&&p.x<=41&&p.z>=15&&p.z<=36);
  assert(std::hypot(p.x,p.z)<55);
  for(auto old:seen)assert(std::hypot(p.x-old.x,p.z-old.z)>=3);
  seen.push_back(p);
 }
 for(int x=20;x<=41;x+=3)for(int z=15;z<=36;z+=3){
  int matches=0;for(auto p:seen)if(p.x==x&&p.z==z)matches++;assert(matches==1);
 }
 for(int invalid:{-1,64,999}){auto p=StorageOffset(invalid);assert(p.x==0&&p.y==0&&p.z==0);}
}
''')
tick = body(p, 'int Tick(')
start = tick.index('int tested, lowGround, obstructed;')
end = tick.index('m_Stage = 1;', start)
placement = tick[start:end]
assert 'i < STORAGE_CANDIDATES && m_Stores.Count() < STORAGE_COUNT' in placement
assert 'if (position[1] <= 1) { lowGround++; continue; }' in placement
assert 'if (!SCR_WorldTools.TraceCilinderUtil(position + "0 1 0", 1.3, 2, TraceFlags.ENTS | TraceFlags.WORLD)) { obstructed++; continue; }' in placement
assert placement.index('TraceCilinderUtil') < placement.index('ERR_Actors.Spawn(BOX, position)')
assert placement.index('m_Mode.Own(box)') < placement.index('box.FindComponent(')
assert placement.count('ERR_Actors.Spawn(') == 1
assert 'm_Boxes.Count() == STORAGE_COUNT && m_Stores.Count() == STORAGE_COUNT' in placement
assert ') return -1;' in placement[placement.index('m_Boxes.Count() == STORAGE_COUNT'):]
for forbidden in ('TryMoveItem', 'TrySpawn', 'Delete', 'SetOrigin', 'Teleport', 'HandleDamage', 'SHELL'):
 assert forbidden not in placement, forbidden
assert tick.index('m_Stage = 1;', start) < tick.index('source.TryMoveItemToStorage(')
assert 'Boxes with borrowed originals remain owned by normal mission cleanup.' in text
print('PASS: 64 bounded distinct storage candidates; native gates, five-store barrier and finite-stock ownership retained; native placement pending')