GetTerrainAmbientLightAtPoint

/* GetTerrainAmbientLightAtPoint(Vector const&, Vector*, CBaseAnimating*) */

undefined4 GetTerrainAmbientLightAtPoint(Vector *param_1,Vector *param_2,CBaseAnimating *param_3)

{
  char cVar1;
  undefined4 uVar2;
  int iVar3;
  int iVar4;
  float fVar5;
  float fVar6;
  float fVar7;
  float fVar8;
  float local_70;
  float local_6c;
  float local_68;
  float local_64;
  float local_60;
  float local_5c;
  float local_58;
  float local_54;
  float local_50;
  float local_4c;
  float local_48;
  undefined4 local_44;
  float local_40;
  float local_3c;
  float local_38;
  float local_34;
  float local_30;
  undefined4 local_2c;
  float local_28;
  float local_24;
  float local_20;
  
  cVar1 = (**(code **)(*engine + 0x194))(engine,param_1,1,&local_70);
  if (cVar1 != '\0') {
    local_4c = *(float *)param_1;
    local_40 = *(float *)param_1;
    local_3c = *(float *)(param_1 + 4);
    local_48 = *(float *)(param_1 + 4);
    local_38 = *(float *)(param_1 + 8) - 150.0;
    local_44 = *(undefined4 *)(param_1 + 8);
    uVar2 = (**(code **)(*engine + 0x198))(engine,&local_4c,&local_40,&local_64,&local_58);
    if ((char)uVar2 != '\0') {
      if (((((-1e-06 < local_64) && (local_64 < 1e-06)) && (-1e-06 < local_60)) &&
          ((local_60 < 1e-06 && (-1e-06 < local_5c)))) && (local_5c < 1e-06)) {
        iVar4 = -1;
        do {
          iVar3 = -1;
          do {
            if (iVar3 != 0 || iVar4 != 0) {
              local_34 = local_4c + (float)iVar4 * 16.0;
              local_30 = local_48 + (float)iVar3 * 16.0;
              local_24 = (float)iVar3 * 16.0 + local_3c;
              local_2c = local_44;
              local_28 = (float)iVar4 * 16.0 + local_40;
              local_20 = local_38;
              cVar1 = (**(code **)(*engine + 0x198))(engine,&local_34,&local_28,&local_64,&local_58)
              ;
              if ((cVar1 != '\0') &&
                 (((local_64 <= -1e-06 || (1e-06 <= local_64)) ||
                  ((local_60 <= -1e-06 ||
                   (((1e-06 <= local_60 || (local_5c <= -1e-06)) || (1e-06 <= local_5c))))))))
              break;
            }
            iVar3 = iVar3 + 1;
          } while (iVar3 != 2);
          iVar4 = iVar4 + 1;
        } while (iVar4 != 2);
      }
      fVar5 = SQRT(local_54 * local_54 + local_58 * local_58 + local_50 * local_50);
      if (fVar5 <= 0.25) {
        fVar5 = 0.25;
      }
      if (0.75 <= fVar5) {
        fVar5 = 0.75;
      }
      fVar7 = local_64 * 15.0 * fVar5;
      fVar6 = local_60 * 15.0 * fVar5;
      fVar5 = local_5c * 15.0 * fVar5;
      *(float *)param_2 = fVar7;
      *(float *)(param_2 + 4) = fVar6;
      *(float *)(param_2 + 8) = fVar5;
      fVar8 = *(float *)(ZombieAddedLightMax._28_4_ + 0x2c);
      if ((fVar7 <= *(float *)(ZombieAddedLightMax._28_4_ + 0x2c)) &&
         (fVar8 = *(float *)(ZombieAddedLightMin._28_4_ + 0x2c),
         *(float *)(ZombieAddedLightMin._28_4_ + 0x2c) <= fVar7)) {
        fVar8 = fVar7;
      }
      *(float *)param_2 = fVar8;
      fVar7 = *(float *)(ZombieAddedLightMax._28_4_ + 0x2c);
      if ((fVar6 <= *(float *)(ZombieAddedLightMax._28_4_ + 0x2c)) &&
         (fVar7 = *(float *)(ZombieAddedLightMin._28_4_ + 0x2c),
         *(float *)(ZombieAddedLightMin._28_4_ + 0x2c) <= fVar6)) {
        fVar7 = fVar6;
      }
      *(float *)(param_2 + 4) = fVar7;
      fVar6 = *(float *)(ZombieAddedLightMax._28_4_ + 0x2c);
      if ((fVar5 <= *(float *)(ZombieAddedLightMax._28_4_ + 0x2c)) &&
         (fVar6 = *(float *)(ZombieAddedLightMin._28_4_ + 0x2c),
         *(float *)(ZombieAddedLightMin._28_4_ + 0x2c) <= fVar5)) {
        fVar6 = fVar5;
      }
      if (local_6c <= local_70) {
        local_6c = local_70;
      }
      if (local_6c <= local_68) {
        local_6c = local_68;
      }
      local_6c = local_6c * 3.0;
      if (1.0 <= local_6c) {
        local_6c = 1.0;
      }
      local_6c = 1.0 - local_6c;
      fVar8 = fVar8 * local_6c;
      fVar7 = fVar7 * local_6c;
      local_6c = local_6c * fVar6;
      *(float *)param_2 = fVar8;
      *(float *)(param_2 + 4) = fVar7;
      *(float *)(param_2 + 8) = local_6c;
      fVar5 = *(float *)(ZombieAddedLightMax._28_4_ + 0x2c);
      if ((fVar8 <= *(float *)(ZombieAddedLightMax._28_4_ + 0x2c)) &&
         (fVar5 = fVar8, fVar8 <= *(float *)(ZombieAddedLightMin._28_4_ + 0x2c))) {
        fVar5 = *(float *)(ZombieAddedLightMin._28_4_ + 0x2c);
      }
      *(float *)param_2 = fVar5;
      fVar5 = *(float *)(ZombieAddedLightMax._28_4_ + 0x2c);
      if ((fVar7 <= *(float *)(ZombieAddedLightMax._28_4_ + 0x2c)) &&
         (fVar5 = fVar7, fVar7 <= *(float *)(ZombieAddedLightMin._28_4_ + 0x2c))) {
        fVar5 = *(float *)(ZombieAddedLightMin._28_4_ + 0x2c);
      }
      *(float *)(param_2 + 4) = fVar5;
      if (local_6c <= *(float *)(ZombieAddedLightMax._28_4_ + 0x2c)) {
        fVar5 = *(float *)(ZombieAddedLightMin._28_4_ + 0x2c);
        if (*(float *)(ZombieAddedLightMin._28_4_ + 0x2c) <= local_6c) {
          fVar5 = local_6c;
        }
        *(float *)(param_2 + 8) = fVar5;
      }
      else {
        *(float *)(param_2 + 8) = *(float *)(ZombieAddedLightMax._28_4_ + 0x2c);
      }
      return uVar2;
    }
  }
  return 0;
}