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2026-02-02 04:50:13 +01:00

99 lines
2.8 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/>.
*
*/
#include "ultima/ultima1/u1gfx/sprites.h"
#include "ultima/shared/early/ultima_early.h"
#include "ultima/shared/early/game.h"
namespace Ultima {
namespace Ultima1 {
namespace U1Gfx {
BEGIN_MESSAGE_MAP(Sprites, Shared::TreeItem)
ON_MESSAGE(FrameMsg)
END_MESSAGE_MAP()
#define ANIMATE_FRAME_DELAY 200
void Sprites::load(bool isOverworld) {
_isOverworld = isOverworld;
if (isOverworld)
Shared::Gfx::Sprites::load("t1ktiles.bin", 4);
else
Shared::Gfx::Sprites::load("t1ktown.bin", 4, 8, 8);
}
bool Sprites::FrameMsg(CFrameMsg *msg) {
if (!empty() && _isOverworld) {
animateWater();
}
++_frameCtr;
return false;
}
void Sprites::animateWater() {
byte lineBuffer[16];
Shared::Gfx::Sprite &sprite = (*this)[0];
Common::copy(sprite.getBasePtr(0, 15), sprite.getBasePtr(0, 16), lineBuffer);
Common::copy_backward(sprite.getBasePtr(0, 0), sprite.getBasePtr(0, 15), sprite.getBasePtr(0, 16));
Common::copy(lineBuffer, lineBuffer + 16, sprite.getBasePtr(0, 0));
}
Shared::Gfx::Sprite &Sprites::operator[](uint idx) {
int offset = 2;
if ((_frameCtr % 6) == 0)
offset = 0;
else if ((_frameCtr % 3) == 0)
offset = 1;
if (!_isOverworld) {
// Don't do overworld tile animations within the cities and castles
return Shared::Gfx::Sprites::operator[](idx);
} else if (idx == 4 && offset != 2) {
// Castle flag waving
return Shared::Gfx::Sprites::operator[](4 + offset);
} else if (idx == 6) {
// City flag waving
return Shared::Gfx::Sprites::operator[](7 + ((_frameCtr & 3) ? 1 : 0));
} else {
if (idx >= 7 && idx < 50)
idx += 2;
if (idx == 14 || idx == 25) {
// Transports
return Shared::Gfx::Sprites::operator[](idx + (_frameCtr & 1));
} else if (idx >= 19 && idx <= 47) {
// Random monster animation
return Shared::Gfx::Sprites::operator[](idx + (g_vm->getRandomNumber(1, 100) & 1));
} else {
return Shared::Gfx::Sprites::operator[](idx);
}
}
}
} // End of namespace U1Gfx
} // End of namespace Ultima1
} // End of namespace Ultima