scummvm/engines/grim/primitives.cpp
2014-06-05 07:50:49 -07:00

143 lines
3.6 KiB
C++

/* ResidualVM - A 3D game interpreter
*
* ResidualVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "engines/grim/gfx_base.h"
#include "engines/grim/primitives.h"
#include "engines/grim/savegame.h"
#include "engines/grim/grim.h"
#include "engines/grim/color.h"
namespace Grim {
PrimitiveObject::PrimitiveObject() :
_filled(false), _type(InvalidType) {
}
PrimitiveObject::~PrimitiveObject() {
}
void PrimitiveObject::saveState(SaveGame *savedState) const {
savedState->writeLESint32((int32)_type);
savedState->writeColor(_color);
savedState->writeLEUint32(_filled);
savedState->writeLEUint16(_p1.x);
savedState->writeLEUint16(_p1.y);
savedState->writeLEUint16(_p2.x);
savedState->writeLEUint16(_p2.y);
savedState->writeLEUint16(_p3.x);
savedState->writeLEUint16(_p3.y);
savedState->writeLEUint16(_p4.x);
savedState->writeLEUint16(_p4.y);
}
bool PrimitiveObject::restoreState(SaveGame *savedState) {
_type = (PrimType)savedState->readLESint32();
_color = savedState->readColor();
_filled = savedState->readLEUint32();
_p1.x = savedState->readLEUint16();
_p1.y = savedState->readLEUint16();
_p2.x = savedState->readLEUint16();
_p2.y = savedState->readLEUint16();
_p3.x = savedState->readLEUint16();
_p3.y = savedState->readLEUint16();
_p4.x = savedState->readLEUint16();
_p4.y = savedState->readLEUint16();
return true;
}
void PrimitiveObject::createRectangle(const Common::Point &p1, const Common::Point &p2, const Color &color, bool filled) {
_type = RectangleType;
_p1 = p1;
_p2 = p2;
_color = color;
_filled = filled;
}
void PrimitiveObject::createLine(const Common::Point &p1, const Common::Point &p2, const Color &color) {
_type = LineType;
_p1 = p1;
_p2 = p2;
_color = color;
}
void PrimitiveObject::createPolygon(const Common::Point &p1, const Common::Point &p2, const Common::Point &p3, const Common::Point &p4, const Color &color) {
_type = PolygonType;
_p1 = p1;
_p2 = p2;
_p3 = p3;
_p4 = p4;
_color = color;
}
void PrimitiveObject::draw() const {
assert(_type != InvalidType);
if (_type == RectangleType) {
g_driver->drawRectangle(this);
} else if (_type == LineType) {
g_driver->drawLine(this);
} else if (_type == PolygonType) {
g_driver->drawPolygon(this);
}
}
void PrimitiveObject::setPos(int x, int y) {
if (x != -1) {
int dx = x - _p1.x;
_p1.x += dx;
if (_type == RectangleType || _type == LineType || _type == PolygonType) {
_p2.x += dx;
}
if (_type == PolygonType) {
_p3.x += dx;
_p4.x += dx;
}
}
if (y != -1) {
int dy = y - _p1.y;
_p1.y += dy;
if (_type == RectangleType || _type == LineType || _type == PolygonType)
_p2.y += dy;
if (_type == PolygonType) {
_p3.y += dy;
_p4.y += dy;
}
}
}
void PrimitiveObject::setEndpoint(int x, int y) {
assert(_type == LineType);
_p2.x = x;
_p2.y = y;
}
} // end of namespace Grim