mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 09:49:11 +00:00
c6cf4827d7
This was added in commit 3fdddd53b2.
However, having handling for both BE and LE resource complicates
the engine code unnecessarily. Thus, a different approach will be
done.
450 lines
11 KiB
C++
450 lines
11 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.
|
|
*
|
|
* This file contains utilities to handle object animation.
|
|
*/
|
|
|
|
#include "tinsel/anim.h"
|
|
#include "tinsel/handle.h"
|
|
#include "tinsel/multiobj.h" // multi-part object defintions etc.
|
|
#include "tinsel/object.h"
|
|
#include "tinsel/sched.h"
|
|
#include "tinsel/tinsel.h"
|
|
|
|
#include "common/textconsole.h"
|
|
#include "common/util.h"
|
|
|
|
namespace Tinsel {
|
|
|
|
/**
|
|
* Advance to next frame routine.
|
|
* @param pAnim Animation data structure
|
|
*/
|
|
SCRIPTSTATE DoNextFrame(ANIM *pAnim) {
|
|
// get a pointer to the script
|
|
const ANI_SCRIPT *pAni = (const ANI_SCRIPT *)LockMem(pAnim->hScript);
|
|
|
|
while (1) { // repeat until a real image
|
|
debugC(DEBUG_DETAILED, kTinselDebugAnimations,
|
|
"DoNextFrame %ph index=%d, op=%xh", (byte *)pAnim, pAnim->scriptIndex,
|
|
FROM_LE_32(pAni[pAnim->scriptIndex].op));
|
|
|
|
switch ((int32)FROM_LE_32(pAni[pAnim->scriptIndex].op)) {
|
|
case ANI_END: // end of animation script
|
|
|
|
// move to next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// indicate script has finished
|
|
return ScriptFinished;
|
|
|
|
case ANI_JUMP: // do animation jump
|
|
|
|
// move to jump address
|
|
pAnim->scriptIndex++;
|
|
|
|
// jump to new frame position
|
|
pAnim->scriptIndex += (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op);
|
|
|
|
// go fetch a real image
|
|
break;
|
|
|
|
case ANI_HFLIP: // flip animated object horizontally
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiHorizontalFlip(pAnim->pObject);
|
|
|
|
// go fetch a real image
|
|
break;
|
|
|
|
case ANI_VFLIP: // flip animated object vertically
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiVerticalFlip(pAnim->pObject);
|
|
|
|
// go fetch a real image
|
|
break;
|
|
case ANI_HVFLIP: // flip animated object in both directions
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiHorizontalFlip(pAnim->pObject);
|
|
MultiVerticalFlip(pAnim->pObject);
|
|
|
|
// go fetch a real image
|
|
break;
|
|
|
|
case ANI_ADJUSTX: // adjust animated object x animation point
|
|
|
|
// move to x adjustment operand
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiAdjustXY(pAnim->pObject, (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op), 0);
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// go fetch a real image
|
|
break;
|
|
|
|
case ANI_ADJUSTY: // adjust animated object y animation point
|
|
|
|
// move to y adjustment operand
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiAdjustXY(pAnim->pObject, 0, (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op));
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// go fetch a real image
|
|
break;
|
|
|
|
case ANI_ADJUSTXY: // adjust animated object x & y animation points
|
|
{
|
|
int x, y;
|
|
|
|
// move to x adjustment operand
|
|
pAnim->scriptIndex++;
|
|
x = (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op);
|
|
|
|
// move to y adjustment operand
|
|
pAnim->scriptIndex++;
|
|
y = (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op);
|
|
|
|
MultiAdjustXY(pAnim->pObject, x, y);
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// go fetch a real image
|
|
break;
|
|
}
|
|
|
|
case ANI_NOSLEEP: // do not sleep for this frame
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// indicate not to sleep
|
|
return ScriptNoSleep;
|
|
|
|
case ANI_CALL: // call routine
|
|
|
|
// move to function address
|
|
pAnim->scriptIndex++;
|
|
|
|
// make function call
|
|
|
|
// REMOVED BUGGY CODE
|
|
// pFunc is a function pointer that's part of a union and is assumed to be 32-bits.
|
|
// There is no known place where a function pointer is stored inside the animation
|
|
// scripts, something which wouldn't have worked anyway. Having played through the
|
|
// entire game, there hasn't been any occurence of this case, so just error out here
|
|
// in case we missed something (highly unlikely though)
|
|
error("ANI_CALL opcode encountered! Please report this error to the ScummVM team");
|
|
//(*pAni[pAnim->scriptIndex].pFunc)(pAnim);
|
|
return ScriptSleep; // for compilers that don't support NORETURN
|
|
|
|
#if 0
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// go fetch a real image
|
|
break;
|
|
#endif
|
|
|
|
case ANI_HIDE: // hide animated object
|
|
|
|
MultiHideObject(pAnim->pObject);
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// dont skip a sleep
|
|
return ScriptSleep;
|
|
|
|
default: // must be an actual animation frame handle
|
|
|
|
// set objects new animation frame
|
|
pAnim->pObject->hShape = FROM_LE_32(pAni[pAnim->scriptIndex].hFrame);
|
|
|
|
// re-shape the object
|
|
MultiReshape(pAnim->pObject);
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
// dont skip a sleep
|
|
return ScriptSleep;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Init a ANIM structure for single stepping through a animation script.
|
|
* @param pAnim Animation data structure
|
|
* @param pAniObj Object to animate
|
|
* @param hNewScript Script of multipart frames
|
|
* @param aniSpeed Sets speed of animation in frames
|
|
*/
|
|
void InitStepAnimScript(ANIM *pAnim, OBJECT *pAniObj, SCNHANDLE hNewScript, int aniSpeed) {
|
|
OBJECT *pObj; // multi-object list iterator
|
|
|
|
debugC(DEBUG_DETAILED, kTinselDebugAnimations,
|
|
"InitStepAnimScript Object=(%d,%d,%xh) script=%xh aniSpeed=%d rec=%ph",
|
|
!pAniObj ? 0 : fracToInt(pAniObj->xPos),
|
|
!pAniObj ? 0 : fracToInt(pAniObj->yPos),
|
|
!pAniObj ? 0 : pAniObj->hImg, hNewScript, aniSpeed, (byte *)pAnim);
|
|
|
|
pAnim->aniDelta = 1; // will animate on next call to NextAnimRate
|
|
pAnim->pObject = pAniObj; // set object to animate
|
|
pAnim->hScript = hNewScript; // set animation script
|
|
pAnim->scriptIndex = 0; // start of script
|
|
pAnim->aniRate = aniSpeed; // set speed of animation
|
|
|
|
// reset flip flags for the object - let the script do the flipping
|
|
for (pObj = pAniObj; pObj != NULL; pObj = pObj->pSlave) {
|
|
AnimateObjectFlags(pObj, pObj->flags & ~(DMA_FLIPH | DMA_FLIPV),
|
|
pObj->hImg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Execute the next command in a animation script.
|
|
* @param pAnim Animation data structure
|
|
*/
|
|
SCRIPTSTATE StepAnimScript(ANIM *pAnim) {
|
|
SCRIPTSTATE state;
|
|
|
|
if (--pAnim->aniDelta == 0) {
|
|
// re-init animation delta counter
|
|
pAnim->aniDelta = pAnim->aniRate;
|
|
|
|
if (TinselV2)
|
|
state = DoNextFrame(pAnim);
|
|
else {
|
|
// move to next frame
|
|
while ((state = DoNextFrame(pAnim)) == ScriptNoSleep)
|
|
;
|
|
}
|
|
|
|
return state;
|
|
}
|
|
|
|
// indicate calling task should sleep
|
|
return ScriptSleep;
|
|
}
|
|
|
|
/**
|
|
* Skip the specified number of frames.
|
|
* @param pAnim Animation data structure
|
|
* @param numFrames Number of frames to skip
|
|
*/
|
|
void SkipFrames(ANIM *pAnim, int numFrames) {
|
|
// get a pointer to the script
|
|
const ANI_SCRIPT *pAni = (const ANI_SCRIPT *)LockMem(pAnim->hScript);
|
|
|
|
if (!TinselV2 && (numFrames <= 0))
|
|
// do nothing
|
|
return;
|
|
|
|
while (1) { // repeat until a real image
|
|
|
|
switch ((int32)FROM_LE_32(pAni[pAnim->scriptIndex].op)) {
|
|
case ANI_END: // end of animation script
|
|
// going off the end is probably a error, but only in Tinsel 1
|
|
if (!TinselV2)
|
|
error("SkipFrames(): formally 'assert(0)!'");
|
|
return;
|
|
|
|
case ANI_JUMP: // do animation jump
|
|
|
|
// move to jump address
|
|
pAnim->scriptIndex++;
|
|
|
|
// jump to new frame position
|
|
pAnim->scriptIndex += (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op);
|
|
|
|
if (TinselV2)
|
|
// Done if skip to jump
|
|
return;
|
|
break;
|
|
|
|
case ANI_HFLIP: // flip animated object horizontally
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiHorizontalFlip(pAnim->pObject);
|
|
break;
|
|
|
|
case ANI_VFLIP: // flip animated object vertically
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiVerticalFlip(pAnim->pObject);
|
|
break;
|
|
|
|
case ANI_HVFLIP: // flip animated object in both directions
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiHorizontalFlip(pAnim->pObject);
|
|
MultiVerticalFlip(pAnim->pObject);
|
|
break;
|
|
|
|
case ANI_ADJUSTX: // adjust animated object x animation point
|
|
|
|
// move to x adjustment operand
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiAdjustXY(pAnim->pObject, (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op), 0);
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
break;
|
|
|
|
case ANI_ADJUSTY: // adjust animated object y animation point
|
|
|
|
// move to y adjustment operand
|
|
pAnim->scriptIndex++;
|
|
|
|
MultiAdjustXY(pAnim->pObject, 0, (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op));
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
break;
|
|
|
|
case ANI_ADJUSTXY: // adjust animated object x & y animation points
|
|
{
|
|
int x, y;
|
|
|
|
// move to x adjustment operand
|
|
pAnim->scriptIndex++;
|
|
x = (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op);
|
|
|
|
// move to y adjustment operand
|
|
pAnim->scriptIndex++;
|
|
y = (int32)FROM_LE_32(pAni[pAnim->scriptIndex].op);
|
|
|
|
MultiAdjustXY(pAnim->pObject, x, y);
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
|
|
break;
|
|
}
|
|
|
|
case ANI_NOSLEEP: // do not sleep for this frame
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
break;
|
|
|
|
case ANI_CALL: // call routine
|
|
|
|
// skip function address
|
|
pAnim->scriptIndex += 2;
|
|
break;
|
|
|
|
case ANI_HIDE: // hide animated object
|
|
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
break;
|
|
|
|
default: // must be an actual animation frame handle
|
|
|
|
// one less frame
|
|
if (numFrames == 0)
|
|
return;
|
|
|
|
if (numFrames == -1 || numFrames-- > 0) {
|
|
// next opcode
|
|
pAnim->scriptIndex++;
|
|
} else {
|
|
// set objects new animation frame
|
|
pAnim->pObject->hShape = FROM_LE_32(pAni[pAnim->scriptIndex].hFrame);
|
|
|
|
// re-shape the object
|
|
MultiReshape(pAnim->pObject);
|
|
|
|
// we have skipped to the correct place
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* About to jump or end
|
|
* @param pAnim Animation data structure
|
|
*/
|
|
bool AboutToJumpOrEnd(PANIM pAnim) {
|
|
if (pAnim->aniDelta == 1) {
|
|
// get a pointer to the script
|
|
ANI_SCRIPT *pAni = (ANI_SCRIPT *)LockMem(pAnim->hScript);
|
|
int zzz = pAnim->scriptIndex;
|
|
|
|
for (;;) {
|
|
// repeat until a real image
|
|
switch (FROM_LE_32(pAni[zzz].op)) {
|
|
case ANI_END: // end of animation script
|
|
case ANI_JUMP: // do animation jump
|
|
return true;
|
|
|
|
case ANI_HFLIP: // flip animated object horizontally
|
|
case ANI_VFLIP: // flip animated object vertically
|
|
case ANI_HVFLIP: // flip animated object in both directions
|
|
zzz++;
|
|
break;
|
|
|
|
case ANI_ADJUSTX: // adjust animated object x animation point
|
|
case ANI_ADJUSTY: // adjust animated object y animation point
|
|
zzz += 2;
|
|
break;
|
|
|
|
case ANI_ADJUSTXY: // adjust animated object x & y animation points
|
|
zzz += 3;
|
|
break;
|
|
|
|
case ANI_HIDE: // hide animated object
|
|
default: // must be an actual animation frame handle
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
} // End of namespace Tinsel
|