hero_head_5_7/jni/Cubic.cpp

#include "Cubic.h"

#include <algorithm>
// 001B683C
int Cubic::degree() {
  if (fabsf(list_0[0]) >= 0.000001 || fabsf(list_0[1]) >= 0.000001) return 3;
  if (fabsf(list_0[2]) >= 0.000001 || fabsf(list_0[3]) >= 0.000001) return 2;
  if (fabsf(list_0[4]) >= 0.000001 || fabsf(list_0[5]) >= 0.000001) return 1;
  if (fabsf(list_0[6]) >= 0.000001 || fabsf(list_0[7]) >= 0.000001) return 0;
  return -1;
}

// 001b6c48
void sort(cFloat* pf0, int r1_count) {
  // loc_1B6C58
  for (int i_r2 = 0; i_r2 < 3; i_r2++) {  // loc_1B6C58

    if (fabs(pf0[i_r2].field_4) >= 1.0e-6f || i_r2 >= r1_count ||
        pf0[i_r2].field_0 < 0) {  // loc_1B6C80
      pf0[i_r2].field_0 = 1000.0f;
      pf0[i_r2].field_4 = 0;
    }
    // loc_1B6C88
  }
  // 001B6C8E
  //优化后的冒泡
  for (int i_lr = 0; i_lr < r1_count; i_lr++) {  //.text:001B6C98
    int d_r12 = 0;
    int r3_i=0;
    cFloat*r4_pf=pf0+r3_i;
    
    while(r3_i<r1_count - 1){
      if(r4_pf->field_0>(r4_pf+1)->field_0){
        //001B6CC2
        cFloat r4r12_cfloat=*r4_pf;
        *r4_pf=*(r4_pf+1);
        *(r4_pf+1)=r4r12_cfloat;
        r4_pf=pf0+r3_i+1;
        d_r12=1;
      }else
      {
        r3_i++;
      }
    }
    // loc_1B6CDA
    if (!(d_r12)) break;
  }

  // locret_1B6CE4
}