Studio_SetController

/* Studio_SetController(CStudioHdr const*, int, float, float&) */

longdouble Studio_SetController(CStudioHdr *param_1,int param_2,float param_3,float *param_4)

{
  int iVar1;
  int iVar2;
  int iVar3;
  int iVar4;
  float fVar5;
  float fVar6;
  float fVar7;
  
  if (param_1 != (CStudioHdr *)0x0) {
    iVar1 = *(int *)param_1;
    if (*(int *)(iVar1 + 0xa4) < 1) {
LAB_00b94351:
      *param_4 = 0.0;
    }
    else {
      iVar3 = iVar1 + *(int *)(iVar1 + 0xa8);
      if (param_2 != *(int *)(iVar3 + 0x14)) {
        iVar4 = 0;
        iVar2 = iVar1 + 0x38 + *(int *)(iVar1 + 0xa8);
        do {
          iVar3 = iVar2;
          iVar4 = iVar4 + 1;
          if (iVar4 == *(int *)(iVar1 + 0xa4)) goto LAB_00b94351;
          iVar2 = iVar3 + 0x38;
        } while (param_2 != *(int *)(iVar3 + 0x14));
      }
      if ((*(byte *)(iVar3 + 4) & 0x38) == 0) {
        fVar5 = *(float *)(iVar3 + 8);
        fVar6 = *(float *)(iVar3 + 0xc);
      }
      else {
        fVar6 = *(float *)(iVar3 + 0xc);
        fVar5 = *(float *)(iVar3 + 8);
        if (fVar6 < fVar5) {
          param_3 = -param_3;
        }
        if (fVar5 + 359.0 < fVar6) {
          if (360.0 < param_3) {
            param_3 = param_3 - (float)(int)(param_3 * 0.0027777778) * 360.0;
          }
          else if (param_3 < 0.0) {
            param_3 = (float)(int)(param_3 * -0.0027777778 + 1.0) * 360.0 + param_3;
          }
        }
        else {
          fVar7 = (fVar5 + fVar6) * 0.5;
          if (fVar7 + 180.0 < param_3) {
            param_3 = param_3 - 360.0;
          }
          if (param_3 < fVar7 - 180.0) {
            param_3 = param_3 + 360.0;
          }
        }
      }
      fVar7 = 0.0;
      fVar5 = (param_3 - fVar5) / (fVar6 - fVar5);
      if (fVar5 < 0.0) {
        fVar6 = 1.0;
      }
      else if (fVar5 <= 1.0) {
        fVar6 = 1.0 - fVar5;
        fVar7 = fVar5;
      }
      else {
        fVar6 = 0.0;
        fVar7 = 1.0;
      }
      *param_4 = fVar7;
      param_3 = fVar7 * *(float *)(iVar3 + 0xc) + *(float *)(iVar3 + 8) * fVar6;
      if (((*(byte *)(iVar3 + 4) & 0x38) != 0) && (*(float *)(iVar3 + 0xc) < *(float *)(iVar3 + 8)))
      {
        return (longdouble)-param_3;
      }
    }
  }
  return (longdouble)param_3;
}