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#include "StdAfx.h"
#include "T2DayLightFilter.h"
#include <MINMAX.H>
T2DayLightFilter::T2DayLightFilter() {
mBaseCol.rgbRed = 0;
mBaseCol.rgbGreen = 0;
mBaseCol.rgbBlue = 0;
mTime = 0;
}
T2DayLightFilter::~T2DayLightFilter() {
}
void T2DayLightFilter::SetTime(int t1, int t2) {
#pragma var_order(base, low, high, time, midpoint)
double time;
double base = (sin(2.0 * (3.141592 * (t1 / 1000.0))) * 8.0) + 500.0;
double midpoint = 1000.0 - base;
double low = midpoint / 2.0;
double high = 1000.0 - (midpoint / 2.0);
if (t2 < low) {
time = -90.0 * cos((3.141592 * (t2 / (midpoint / 2.0))) / 2.0);
} else if (t2 < high) {
time = 90.0 * sin(3.141592 * ((t2 - low) / base));
} else {
time = -90.0 * sin((3.141592 * ((t2 - high) / (midpoint / 2.0))) / 2.0);
}
if (time < 0.0) {
mTime = -int(-time + 0.5);
} else {
mTime = int(time + 0.5);
}
if (mTime > 90)
mTime = 90;
if (mTime < -90)
mTime = -90;
while (mTime < 0)
mTime += 360;
while (mTime >= 360)
mTime -= 360;
CalcDayLightColor(&mBaseCol);
}
void T2DayLightFilter::RefractionColor(RGBQUAD* rgb) {
rgb->rgbRed = (mBaseCol.rgbRed * rgb->rgbRed) / 255;
rgb->rgbGreen = (mBaseCol.rgbGreen * rgb->rgbGreen) / 255;
rgb->rgbBlue = (mBaseCol.rgbBlue * rgb->rgbBlue) / 255;
}
void T2DayLightFilter::CalcDayLightColor(RGBQUAD* rgb) {
#pragma var_order(outB, outR, base, tint1, tint2, outG)
double base = (0.5 * sin((3.141592 * mTime) / 180.0)) + 0.5;
if (base < 0.0)
base = 0.0;
double outR = base;
double outG = base;
double outB = base;
double tint1 = 1.1 * sin((3.141592 * mTime) / 180.0);
if (tint1 > 1.0)
tint1 = 1.0;
else if (tint1 < 0.1)
tint1 = 0.1;
outG *= 1.0 - (0.8 * (1.0 - tint1));
outB *= tint1;
outR += 0.4;
outG += 0.4;
outB += 0.4;
double tint2 = 0.2 + (outR * 0.35) + (outG * 0.45) + (outB * 0.2);
if (tint2 > 1.0)
tint2 = 1.0;
outR *= tint2;
outG *= 1.0 - (0.7 * (1.0 - tint2));
outR = min(max(outR, 0.0), 1.0);
outG = min(max(outG, 0.0), 1.0);
outB = min(max(outB, 0.0), 1.0);
rgb->rgbRed = 255.0 * outR;
rgb->rgbGreen = 255.0 * outG;
rgb->rgbBlue = 255.0 * outB;
}
void T2DayLightFilter::SkyColor(RGBQUAD* rgb) {
#pragma var_order(outB, outR, inG, outG, inB, inR)
double inR = mBaseCol.rgbRed / 255.0;
double inG = mBaseCol.rgbGreen / 255.0;
double inB = mBaseCol.rgbBlue / 255.0;
double outR = inR;
double outG = inG;
double outB = inB;
outR *= (rgb->rgbRed / 255.0);
outG *= (rgb->rgbGreen / 255.0);
outB *= (rgb->rgbBlue / 255.0);
outR = (0.45 * outR) + (0.55 * inR);
outG = (0.6 * outG) + (0.4 * inG);
outB = (0.6 * outB) + (0.4 * inB);
rgb->rgbRed = 255.0 * outR;
rgb->rgbGreen = 255.0 * outG;
rgb->rgbBlue = 255.0 * outB;
}
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