diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/daynightratio.h | 64 |
1 files changed, 34 insertions, 30 deletions
diff --git a/src/daynightratio.h b/src/daynightratio.h index a7b93234e..5986da5fc 100644 --- a/src/daynightratio.h +++ b/src/daynightratio.h @@ -22,47 +22,51 @@ with this program; if not, write to the Free Software Foundation, Inc., inline u32 time_to_daynight_ratio(float time_of_day, bool smooth) { float t = time_of_day; - if(t < 0) - t += ((int)(-t)/24000)*24000; - if(t >= 24000) - t -= ((int)(t)/24000)*24000; - if(t > 12000) - t = 24000 - t; - float values[][2] = { - {4250+125, 150}, - {4500+125, 150}, - {4750+125, 250}, - {5000+125, 350}, - {5250+125, 500}, - {5500+125, 675}, - {5750+125, 875}, - {6000+125, 1000}, - {6250+125, 1000}, + if (t < 0.0f) + t += ((int)(-t) / 24000) * 24000.0f; + if (t >= 24000.0f) + t -= ((int)(t) / 24000) * 24000.0f; + if (t > 12000.0f) + t = 24000.0f - t; + + const float values[9][2] = { + {4250.0f + 125.0f, 150.0f}, + {4500.0f + 125.0f, 150.0f}, + {4750.0f + 125.0f, 250.0f}, + {5000.0f + 125.0f, 350.0f}, + {5250.0f + 125.0f, 500.0f}, + {5500.0f + 125.0f, 675.0f}, + {5750.0f + 125.0f, 875.0f}, + {6000.0f + 125.0f, 1000.0f}, + {6250.0f + 125.0f, 1000.0f}, }; - if(!smooth){ + + if (!smooth) { float lastt = values[0][0]; - for(u32 i=1; i<sizeof(values)/sizeof(*values); i++){ + for (u32 i = 1; i < 9; i++) { float t0 = values[i][0]; - float switch_t = (t0 + lastt) / 2; + float switch_t = (t0 + lastt) / 2.0f; lastt = t0; - if(switch_t <= t) + if (switch_t <= t) continue; + return values[i][1]; } return 1000; } - if (t <= 4625) // 4500 + 125 + if (t <= 4625.0f) // 4500 + 125 return values[0][1]; - else if (t >= 6125) // 6000 + 125 + else if (t >= 6125.0f) // 6000 + 125 return 1000; - for (u32 i=0; i < sizeof(values) / sizeof(*values); i++) { - if (values[i][0] <= t) - continue; - float td0 = values[i][0] - values[i-1][0]; - float f = (t - values[i-1][0]) / td0; - return f * values[i][1] + (1.0 - f) * values[i-1][1]; - } - return 1000; + for (u32 i = 0; i < 9; i++) { + if (values[i][0] <= t) + continue; + + float td0 = values[i][0] - values[i - 1][0]; + float f = (t - values[i - 1][0]) / td0; + return f * values[i][1] + (1.0f - f) * values[i - 1][1]; + } + return 1000; } |