scummvm/engines/ags/engine/ac/dynobj/cc_agsdynamicobject.cpp
2021-02-06 16:37:31 -08:00

138 lines
3.9 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 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 <string.h>
#include "core/types.h"
#include "ac/dynobj/cc_agsdynamicobject.h"
#include "ac/common.h" // quit()
#include "util/bbop.h"
using namespace AGS::Common;
// *** The script serialization routines for built-in types
int AGSCCDynamicObject::Dispose(const char *address, bool force) {
// cannot be removed from memory
return 0;
}
void AGSCCDynamicObject::StartSerialize(char *sbuffer) {
bytesSoFar = 0;
serbuffer = sbuffer;
}
void AGSCCDynamicObject::SerializeInt(int val) {
char *chptr = &serbuffer[bytesSoFar];
int *iptr = (int*)chptr;
*iptr = BBOp::Int32FromLE(val);
bytesSoFar += 4;
}
void AGSCCDynamicObject::SerializeFloat(float val) {
char *chptr = &serbuffer[bytesSoFar];
float *fptr = (float*)chptr;
*fptr = BBOp::FloatFromLE(val);
bytesSoFar += 4;
}
int AGSCCDynamicObject::EndSerialize() {
return bytesSoFar;
}
void AGSCCDynamicObject::StartUnserialize(const char *sbuffer, int pTotalBytes) {
bytesSoFar = 0;
totalBytes = pTotalBytes;
serbuffer = (char*)sbuffer;
}
int AGSCCDynamicObject::UnserializeInt() {
if (bytesSoFar >= totalBytes)
quit("Unserialise: internal error: read past EOF");
char *chptr = &serbuffer[bytesSoFar];
bytesSoFar += 4;
return BBOp::Int32FromLE(*((int*)chptr));
}
float AGSCCDynamicObject::UnserializeFloat() {
if (bytesSoFar >= totalBytes)
quit("Unserialise: internal error: read past EOF");
char *chptr = &serbuffer[bytesSoFar];
bytesSoFar += 4;
return BBOp::FloatFromLE(*((float*)chptr));
}
const char* AGSCCDynamicObject::GetFieldPtr(const char *address, intptr_t offset)
{
return address + offset;
}
void AGSCCDynamicObject::Read(const char *address, intptr_t offset, void *dest, int size)
{
memcpy(dest, address + offset, size);
}
uint8_t AGSCCDynamicObject::ReadInt8(const char *address, intptr_t offset)
{
return *(uint8_t*)(address + offset);
}
int16_t AGSCCDynamicObject::ReadInt16(const char *address, intptr_t offset)
{
return *(int16_t*)(address + offset);
}
int32_t AGSCCDynamicObject::ReadInt32(const char *address, intptr_t offset)
{
return *(int32_t*)(address + offset);
}
float AGSCCDynamicObject::ReadFloat(const char *address, intptr_t offset)
{
return *(float*)(address + offset);
}
void AGSCCDynamicObject::Write(const char *address, intptr_t offset, void *src, int size)
{
memcpy((void*)(address + offset), src, size);
}
void AGSCCDynamicObject::WriteInt8(const char *address, intptr_t offset, uint8_t val)
{
*(uint8_t*)(address + offset) = val;
}
void AGSCCDynamicObject::WriteInt16(const char *address, intptr_t offset, int16_t val)
{
*(int16_t*)(address + offset) = val;
}
void AGSCCDynamicObject::WriteInt32(const char *address, intptr_t offset, int32_t val)
{
*(int32_t*)(address + offset) = val;
}
void AGSCCDynamicObject::WriteFloat(const char *address, intptr_t offset, float val)
{
*(float*)(address + offset) = val;
}