#include "Util.h"

#include "CFTTFileSystem_PAK.h"
#include "TGame.h"
#include "XMATH.h"
#include "memctrl.h"
int g_iPakOpen[100];
CFTTFileSystem_PAK *g_pPakFileSystem[100];
CFTTFile *g_pPakFile[100];

const char *sPakFile[] = {"PKG:Data/flags.pak", "PKG:Data/nis.pak"};

//-------------------------------------------------------------------------------------------------
// 00178670
void UTILCOL_CheckSpheresOverlap(TPoint3D, int, TPoint3D, int) {}
//-------------------------------------------------------------------------------------------------
// 001786E4
int UTILCOL_RayCircleTest(TPoint *, int, TPoint *, TPoint *, int) { return 0; }
//-------------------------------------------------------------------------------------------------
// 0017875C
void UTILCOL_LengthenBone(TPoint3D *, TPoint3D *, int) {}
//-------------------------------------------------------------------------------------------------
// 001787A0
bool UTILCOL_CapsuleCapsuleCheck(TPoint3D tp3d0, TPoint3D tp3d1, TPoint3D tp3d2,
                                 TPoint3D tp3d3, int i4, int i5, int i6,
                                 int i7) {
  /*
   * 描述:这个函数寄存器对不上，摆弄了多次后无法与原汇编一致。但功能看起来比较明确。
   */
  TPoint3D var_2C_sp4C;
  TPoint3D var_38_sp40;
  TPoint3D var_44_sp34;
  TPoint3D var_50_sp28;
  TPoint3D var_5C_sp1C;
  TPoint3D var_68_sp10;
  int var_6C_spC;
  int var_70_sp8;
  var_2C_sp4C.point_0.dx_0 = tp3d0.point_0.dx_0;
  var_2C_sp4C.point_0.dy_4 = tp3d0.point_0.dy_4;
  var_2C_sp4C.dz_8 = tp3d0.dz_8;

  var_38_sp40.point_0.dx_0 = tp3d1.point_0.dx_0;
  var_38_sp40.point_0.dy_4 = tp3d1.point_0.dy_4;
  var_38_sp40.dz_8 = tp3d1.dz_8;

  var_44_sp34.point_0.dx_0 = tp3d2.point_0.dx_0;
  var_44_sp34.point_0.dy_4 = tp3d2.point_0.dy_4;
  var_44_sp34.dz_8 = tp3d2.dz_8;

  var_50_sp28.point_0.dx_0 = tp3d3.point_0.dx_0;
  var_50_sp28.point_0.dy_4 = tp3d3.point_0.dy_4;
  var_50_sp28.dz_8 = tp3d3.dz_8;

  var_5C_sp1C.point_0.dx_0 = (tp3d0.point_0.dx_0 + tp3d1.point_0.dx_0) / 2;
  var_5C_sp1C.point_0.dy_4 = (tp3d0.point_0.dy_4 + tp3d1.point_0.dy_4) / 2;
  var_5C_sp1C.dz_8 = (tp3d1.dz_8 + tp3d0.dz_8) / 2;

  var_68_sp10.point_0.dy_4 = (tp3d3.point_0.dy_4 + tp3d2.point_0.dy_4) / 2;
  var_68_sp10.point_0.dx_0 = (tp3d3.point_0.dx_0 + tp3d2.point_0.dx_0) / 2;
  var_68_sp10.dz_8 = (tp3d3.dz_8 + tp3d2.dz_8) / 2;
  int r5_i = i5 + i4 + (i7 + i6) / 2;

  // 0017882E
  if (((int)XMATH_Distance3D(&var_5C_sp1C, &var_68_sp10)) <= r5_i) {
    // 00178832
    // 00178846
    if (XMATH_LineLineDistance(&var_2C_sp4C, &var_38_sp40, &var_44_sp34,
                               &var_50_sp28, &var_6C_spC,
                               &var_70_sp8) < i4 + i5) {
      // 0017884A
      tGame.mTMath_6734.field_370.point_0.dx_0 =
          var_2C_sp4C.point_0.dx_0 +
          var_6C_spC * (var_38_sp40.point_0.dx_0 - var_2C_sp4C.point_0.dx_0) /
              4096;
      tGame.mTMath_6734.field_370.point_0.dy_4 =
          var_2C_sp4C.point_0.dy_4 +
          var_6C_spC * (var_38_sp40.point_0.dy_4 - var_2C_sp4C.point_0.dy_4) /
              4096;

      tGame.mTMath_6734.field_370.dz_8 =
          var_2C_sp4C.dz_8 +
          var_6C_spC * (var_38_sp40.dz_8 - var_2C_sp4C.dz_8) / 4096;

      tGame.mTMath_6734.field_37C.point_0.dx_0 =
          var_44_sp34.point_0.dx_0 +
          var_70_sp8 * (var_50_sp28.point_0.dx_0 - var_44_sp34.point_0.dx_0) /
              4096;


      tGame.mTMath_6734.field_37C.point_0.dy_4 =
          var_44_sp34.point_0.dy_4 +
          var_70_sp8 * (var_50_sp28.point_0.dy_4 - var_44_sp34.point_0.dy_4) /
              4096;
      tGame.mTMath_6734.field_37C.dz_8 =
          var_44_sp34.dz_8 +
          var_70_sp8 * (var_50_sp28.dz_8 - var_44_sp34.dz_8) / 4096;
      tGame.mTMath_6734.field_388[0] = i4;
      tGame.mTMath_6734.field_388[1] = i5;
      return 1;
    }
  }
  // loc_178900
  return 0;
}
//-------------------------------------------------------------------------------------------------
// 001F5080  //^_^ UtilOpenPak(0, "PAK");
void UtilOpenPak(int a0, char const *pFileType) {
  for (int dr6 = 0; dr6 <= 99; dr6++) {  // loc_1F50AC
    // loc_1F5092
    if (a0 == dr6) {
      if (g_iPakOpen[a0] == 0) continue;
      return;
    }
    // loc_1F509E
    if (g_iPakOpen[dr6] != 0) {
      UtilClosePak(dr6);
    }
  }

  // 001F50B0
  CFTTFile *r6_pFile =
      CFTTFileSystem::fopen(sPakFile[a0], "rb", EFTTMemHeapID_0);
  g_pPakFileSystem[a0] = new CFTTFileSystem_PAK;
  g_pPakFileSystem[a0]->Initialise(r6_pFile, EFTTMemHeapID_0);
  CFTTFileSystem::Register(g_pPakFileSystem[a0], pFileType);
  g_iPakOpen[a0] = 1;
}
//-------------------------------------------------------------------------------------------------
// 001F510C //^_^
void UtilClosePak(int a0) {
  if (g_iPakOpen[a0]) {
    CFTTFileSystem::Deregister(g_pPakFileSystem[a0], nullptr);
    // 001F5136
    if (g_pPakFileSystem[a0] != nullptr) {
      delete g_pPakFileSystem[a0];
    }
    // 001F5140
    g_pPakFileSystem[a0] = nullptr;

    if (g_pPakFile[a0] != nullptr) {
      delete g_pPakFile[a0];
    }

    // loc_1F5154
    g_pPakFile[a0] = nullptr;
    g_iPakOpen[a0] = 0;
  }
  // locret_1F515E
}
//-------------------------------------------------------------------------------------------------
// 001F5170 //^_^
bool UtilIsPackOpen(int a0) { return g_iPakOpen[a0] != 0; }
//-------------------------------------------------------------------------------------------------