scummvm/engines/bladerunner/rect_float.h
2021-12-26 18:48:43 +01:00

76 lines
1.9 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef BLADERUNNER_RECT_FLOAT_H
#define BLADERUNNER_RECT_FLOAT_H
#include "common/debug.h"
#include "common/math.h"
#include "common/types.h"
#include "common/util.h"
namespace BladeRunner {
struct RectFloat {
float x0;
float y0;
float x1;
float y1;
RectFloat()
: x0(0.0f), y0(0.0f), x1(0.0f), y1(0.0f)
{}
RectFloat(float x0_, float y0_, float x1_, float y1_)
: x0(x0_), y0(y0_), x1(x1_), y1(y1_)
{}
void expand(float d) {
x0 -= d;
y0 -= d;
x1 += d;
y1 += d;
}
void trunc_2_decimals() {
x0 = Common::trunc(x0 * 100.0f) / 100.0f;
y0 = Common::trunc(y0 * 100.0f) / 100.0f;
x1 = Common::trunc(x1 * 100.0f) / 100.0f;
y1 = Common::trunc(y1 * 100.0f) / 100.0f;
}
};
inline bool overlaps(const RectFloat &a, const RectFloat &b) {
return !(a.y1 < b.y0 || a.y0 > b.y1 || a.x0 > b.x1 || a.x1 < b.x0);
}
inline RectFloat merge(const RectFloat &a, const RectFloat &b) {
RectFloat c;
c.x0 = MIN(a.x0, b.x0);
c.y0 = MIN(a.y0, b.y0);
c.x1 = MAX(a.x1, b.x1);
c.y1 = MAX(a.y1, b.y1);
return c;
}
} // End of namespace BladeRunner
#endif