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/* 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 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 "teenagent/teenagent.h"
#include "teenagent/animation.h"
#include "common/endian.h"
#include "common/textconsole.h"
namespace TeenAgent {
Animation::Animation() : id(0), x(0), y(0), loop(true), paused(false), ignore(false), data(0), dataSize(0), framesCount(0), frames(0), index(0) {
}
Animation::~Animation() {
free();
}
Surface *Animation::firstFrame() {
if (frames == NULL || framesCount == 0)
return NULL;
Surface *r = frames;
uint16 pos = READ_LE_UINT16(data + 1);
if (pos != 0) {
r->x = pos % kScreenWidth;
r->y = pos / kScreenWidth;
}
return r;
}
Surface *Animation::currentFrame(int dt) {
if (paused)
return firstFrame();
if (frames == NULL || framesCount == 0)
return NULL;
Surface *r;
if (data != NULL) {
uint32 frame = 3 * index;
debugC(2, kDebugAnimation, "%u/%u", index, dataSize / 3);
index += dt;
if (!loop && index >= dataSize / 3) {
return NULL;
}
if (data[frame] - 1 >= framesCount) {
warning("invalid frame %u(0x%x) (max %u) index %u, mod %u", frame, frame, framesCount, index - 1, dataSize / 3);
return NULL;
}
r = frames + data[frame] - 1;
uint16 pos = READ_LE_UINT16(data + frame + 1);
index %= (dataSize / 3);
if (pos != 0) {
x = r->x = pos % kScreenWidth;
y = r->y = pos / kScreenWidth;
}
} else {
debugC(2, kDebugAnimation, "index %u", index);
r = frames + index;
index += dt;
index %= framesCount;
}
return r;
}
void Animation::restart() {
paused = false;
ignore = false;
index = 0;
}
void Animation::free() {
id = 0;
x = y = 0;
loop = true;
paused = false;
ignore = false;
delete[] data;
data = NULL;
dataSize = 0;
framesCount = 0;
delete[] frames;
frames = NULL;
index = 0;
}
void Animation::load(Common::SeekableReadStream &s, Type type) {
//FIXME: do not reload the same animation each time
free();
if (s.size() <= 1) {
debugC(1, kDebugAnimation, "empty animation");
return;
}
uint16 pos = 0;
int off = 0;
switch (type) {
case kTypeLan:
dataSize = s.readUint16LE();
if (s.eos()) {
debugC(1, kDebugAnimation, "empty animation");
return;
}
dataSize -= 2;
data = new byte[dataSize];
dataSize = s.read(data, dataSize);
for (int i = 0; i < dataSize; ++i)
debugC(2, kDebugAnimation, "%02x ", data[i]);
debugC(2, kDebugAnimation, ", %u frames", dataSize / 3);
framesCount = s.readByte();
debugC(1, kDebugAnimation, "%u physical frames", framesCount);
if (framesCount == 0)
return;
frames = new Surface[framesCount];
s.skip(framesCount * 2 - 2); //sizes
pos = s.readUint16LE();
debugC(3, kDebugAnimation, "pos?: 0x%04x", pos);
for (uint16 i = 0; i < framesCount; ++i) {
frames[i].load(s, Surface::kTypeLan);
frames[i].x = 0;
frames[i].y = 0;
}
break;
case kTypeInventory: {
dataSize = 3 * s.readByte();
data = new byte[dataSize];
framesCount = 0;
for (byte i = 0; i < dataSize / 3; ++i) {
int idx = i * 3;
byte unk = s.readByte();
debugC(3, kDebugAnimation, "unk?: 0x%02x", unk);
data[idx] = s.readByte();
if (data[idx] == 0)
data[idx] = 1; //fixme: investigate
if (data[idx] > framesCount)
framesCount = data[idx];
data[idx + 1] = 0;
data[idx + 2] = 0;
debugC(2, kDebugAnimation, "frame #%u", data[idx]);
}
frames = new Surface[framesCount];
for (uint16 i = 0; i < framesCount; ++i) {
frames[i].load(s, Surface::kTypeOns);
}
}
break;
case kTypeVaria:
framesCount = s.readByte();
debugC(1, kDebugAnimation, "loading varia resource, %u physical frames", framesCount);
uint16 offset[255];
for (byte i = 0; i < framesCount; ++i) {
offset[i] = s.readUint16LE();
debugC(0, kDebugAnimation, "%u: %04x", i, offset[i]);
}
frames = new Surface[framesCount];
for (uint16 i = 0; i < framesCount; ++i) {
debugC(0, kDebugAnimation, "%04x", offset[i]);
s.seek(offset[i] + off);
frames[i].load(s, Surface::kTypeOns);
}
break;
}
debugC(2, kDebugAnimation, "%u frames", dataSize / 3);
}
} // End of namespace TeenAgent
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