MarkWaterSurfaces_r

/* MarkWaterSurfaces_r(mnode_t*) */

void MarkWaterSurfaces_r(mnode_t *param_1)

{
  ushort uVar1;
  uint uVar2;
  int iVar3;
  int *piVar4;
  uint *puVar5;
  int iVar6;
  uint uVar7;
  
  iVar6 = *(int *)param_1;
  while( true ) {
    if (iVar6 == 1) {
      return;
    }
    if (-1 < iVar6) break;
    MarkWaterSurfaces_r(*(mnode_t **)(param_1 + 0x34));
    param_1 = *(mnode_t **)(param_1 + 0x38);
    iVar6 = *(int *)param_1;
  }
  uVar7 = 0x40000;
  uVar1 = *(ushort *)(param_1 + 0x34);
  if (*(short *)(param_1 + 0x32) != -1) {
    uVar7 = 0x20000;
  }
  iVar6 = *(int *)(DAT_003a172c + 0x90);
  iVar3 = 0;
  if (*(short *)(param_1 + 0x36) != 0) {
    do {
      puVar5 = *(uint **)(iVar6 + (uint)uVar1 * 4 + iVar3 * 4);
      uVar2 = *puVar5;
      if ((uVar2 & 0x10800) == 0) {
        *puVar5 = uVar2 | uVar7;
      }
      iVar3 = iVar3 + 1;
    } while (iVar3 < (int)(uint)*(ushort *)(param_1 + 0x36));
  }
  if (*(short *)(param_1 + 0x3e) != 0) {
    iVar6 = 0;
    do {
      iVar3 = (uint)*(ushort *)(param_1 + 0x3c) + iVar6;
      iVar6 = iVar6 + 1;
      piVar4 = (int *)DispInfo_IndexArray(*(void **)(DAT_003a172c + 0x6c),
                                          (uint)*(ushort *)
                                                 (*(int *)(DAT_003a172c + 0xe0) + iVar3 * 2));
      puVar5 = (uint *)(**(code **)(*piVar4 + 0x18))(piVar4);
      *puVar5 = *puVar5 | uVar7;
    } while (iVar6 < (int)(uint)*(ushort *)(param_1 + 0x3e));
  }
  return;
}