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scummvm/engines/composer/scripting.cpp

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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 "common/scummsys.h"
#include "common/savefile.h"
#include "composer/composer.h"
#include "composer/graphics.h"
#include "composer/resource.h"
namespace Composer {
// new script ops
enum {
kOpPlusPlus = 0x1,
kOpMinusMinus = 0x2,
kOpAssign = 0x3,
kOpAdd = 0x4,
kOpSubtract = 0x5,
kOpMultiply = 0x6,
kOpDivide = 0x7,
kOpModulo = 0x8,
kOpMaybeAlsoAssign = 0x9,
kOpBooleanAssign = 0xA,
kOpNegate = 0xB,
kOpAnd = 0xC,
kOpOr = 0xD,
kOpXor = 0xE,
kOpNot = 0xF,
kOpSqrt = 0x10,
kOpRandom = 0x11,
kOpExecuteScript = 0x12,
kOpCallFunc = 0x13,
kOpBoolLessThanEq = 0x17,
kOpBoolLessThan = 0x16,
kOpBoolGreaterThanEq = 0x15,
kOpBoolGreaterThan = 0x14,
kOpBoolEqual = 0x18,
kOpBoolNotEqual = 0x19,
kOpSaveArgs = 0x1A,
kOpRestoreArgs = 0x1B,
kOpReturn = 0x20,
kOpLessThanEq = 0x22,
kOpLessThan = 0x21,
kOpGreaterThanEq = 0x24,
kOpGreaterThan = 0x23,
kOpEqual = 0x25,
kOpNotEqual = 0x26,
kOpJump = 0x80,
kOpJumpIfNot = 0x81,
kOpJumpIf = 0x82,
kOpJumpIfNotValue = 0x83,
kOpJumpIfValue = 0x84
};
enum {
kFuncPlayAnim = 35001,
kFuncStopAnim = 35002,
// (no 35003)
kFuncQueueScript = 35004,
kFuncDequeueScript = 35005,
kFuncSetCursor = 35006,
kFuncGetCursor = 35007,
kFuncShowCursor = 35008,
kFuncHideCursor = 35009,
// (no 35010)
kFuncActivateButton = 35011,
kFuncDeactivateButton = 35012,
kFuncNewPage = 35013,
kFuncLoadPage = 35014,
kFuncUnloadPage = 35015,
kFuncSetPalette = 35016,
kFuncSaveVars = 35017,
kFuncLoadVars = 35018,
kFuncQueueScriptOnce = 35019,
kFuncGetMousePos = 35020,
kFuncChangeBackground = 35021,
kFuncSetBackgroundColor = 35022,
kFuncClearSprites = 35023,
kFuncAddSprite = 35024,
kFuncRemoveSprite = 35025,
kFuncQuit = 35026,
kFuncSaveData = 35027,
kFuncLoadData = 35028,
kFuncGetSpriteSize = 35029
};
void ComposerEngine::runEvent(uint16 id, int16 param1, int16 param2, int16 param3) {
if (!hasResource(ID_EVNT, id))
return;
Common::SeekableReadStream *stream = getResource(ID_EVNT, id);
if (stream->size() != 2)
error("bad EVNT size %d", stream->size());
uint16 scriptId = stream->readUint16LE();
delete stream;
if (!scriptId)
return;
debug(2, "running event %d via script %d(%d, %d, %d)", id, scriptId, param1, param2, param3);
runScript(scriptId, param1, param2, param3);
}
int16 ComposerEngine::runScript(uint16 id, int16 param1, int16 param2, int16 param3) {
if (getGameType() == GType_ComposerV1) {
runOldScript(id, param1);
return 0;
}
_vars[1] = param1;
_vars[2] = param2;
_vars[3] = param3;
runScript(id);
return _vars[0];
}
int16 ComposerEngine::getArg(uint16 arg, uint16 type) {
switch (type) {
case 0:
return (int16)arg;
case 1:
return (int16)_vars[arg];
case 2:
return (int16)_vars[_vars[arg]];
default:
error("invalid argument type %d (getting arg %d)", type, arg);
}
}
void ComposerEngine::setArg(uint16 arg, uint16 type, uint16 val) {
switch (type) {
case 1:
_vars[arg] = val;
break;
case 2:
_vars[_vars[arg]] = val;
break;
default:
error("invalid argument type %d (setting arg %d)", type, arg);
}
}
void ComposerEngine::runScript(uint16 id) {
if (getGameType() == GType_ComposerV1) {
runOldScript(id, 0);
return;
}
if (!hasResource(ID_SCRP, id)) {
debug(1, "ignoring attempt to run script %d, because it doesn't exist", id);
return;
}
uint stackBase = _stack.size();
_stack.resize(_stack.size() + 19);
Common::SeekableReadStream *stream = getResource(ID_SCRP, id);
if (stream->size() < 2)
error("SCRP was too small (%d)", stream->size());
uint16 size = stream->readUint16LE();
if (stream->size() < 2 + 2*size)
error("SCRP was too small (%d, but claimed %d entries)", stream->size(), size);
uint16 *script = new uint16[size];
for (uint i = 0; i < size; i++)
script[i] = stream->readUint16LE();
delete stream;
uint16 pos = 0;
bool lastResult = false;
while (pos < size) {
int16 val1, val2, val3;
byte op = (byte)script[pos];
uint numParams = (script[pos] & 0x300) >> 8; // 2 bits
if (pos + numParams >= size)
error("script ran out of content");
uint arg1 = (script[pos] & 0xc00) >> 10; // 2 bits
uint arg2 = (script[pos] & 0x3000) >> 12; // 2 bits
uint arg3 = (script[pos] & 0xC000) >> 14; // 2 bits
switch (op) {
case kOpPlusPlus:
if (numParams != 1)
error("kOpPlusPlus had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
debug(9, "[%d/%d]++ (now %d)", script[pos + 1], arg1, val1 + 1);
setArg(script[pos + 1], arg1, val1 + 1);
break;
case kOpMinusMinus:
if (numParams != 1)
error("kOpMinusMinus had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
debug(9, "[%d/%d]-- (now %d)", script[pos + 1], arg1, val1 - 1);
setArg(script[pos + 1], arg1, val1 - 1);
break;
case kOpAssign:
if (numParams != 2)
error("kOpAssign had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] = [%d/%d] (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2);
setArg(script[pos + 1], arg1, val2);
break;
case kOpAdd:
if (numParams != 3)
error("kOpAdd had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d]=%d + [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 + val3);
setArg(script[pos + 1], arg1, val2 + val3);
break;
case kOpSubtract:
if (numParams != 3)
error("kOpSubtract had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d]=%d - [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 - val3);
setArg(script[pos + 1], arg1, val2 - val3);
break;
case kOpMultiply:
if (numParams != 3)
error("kOpMultiply had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d]=%d * [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 * val3);
setArg(script[pos + 1], arg1, val2 * val3);
break;
case kOpDivide:
if (numParams != 3)
error("kOpDivide had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
if (val3 == 0)
error("script tried to divide by zero");
debug(9, "[%d/%d] = [%d/%d]=%d / [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 / val3);
setArg(script[pos + 1], arg1, val2 / val3);
break;
case kOpModulo:
if (numParams != 3)
error("kOpModulo had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
if (val3 == 0)
error("script tried to divide by zero (modulo)");
debug(9, "[%d/%d] = [%d/%d]=%d %% [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 % val3);
setArg(script[pos + 1], arg1, val2 % val3);
break;
case kOpMaybeAlsoAssign:
if (numParams != 2)
error("kOpMaybeAlsoAssign had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] =(?) [%d/%d] (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2);
setArg(script[pos + 1], arg1, val2);
break;
case kOpBooleanAssign:
if (numParams != 2)
error("kOpBooleanAssign had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] = [%d/%d] (%d) ? 1 : 0", script[pos + 1], arg1, script[pos + 2], arg2, val2);
setArg(script[pos + 1], arg1, val2 ? 1 : 0);
break;
case kOpNegate:
if (numParams != 2)
error("kOpNegate had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] = -[%d/%d] (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2);
setArg(script[pos + 1], arg1, -val2);
break;
case kOpAnd:
if (numParams != 3)
error("kOpAnd had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d]=%d & [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 & val3);
setArg(script[pos + 1], arg1, val2 & val3);
break;
case kOpOr:
if (numParams != 3)
error("kOpOr had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d]=%d | [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 | val3);
setArg(script[pos + 1], arg1, val2 | val3);
break;
case kOpXor:
if (numParams != 3)
error("kOpXor had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d]=%d ^ [%d/%d]=%d (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val2 ^ val3);
setArg(script[pos + 1], arg1, val2 ^ val3);
break;
case kOpNot:
if (numParams != 2)
error("kOpNot had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] = ![%d/%d] (!%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2);
setArg(script[pos + 1], arg1, val2 ? 0 : 1);
break;
case kOpSqrt:
if (numParams != 2)
error("kOpSqrt had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] = sqrt([%d/%d] (%d))", script[pos + 1], arg1, script[pos + 2], arg2, val2);
setArg(script[pos + 1], arg1, (int16)sqrt((double)val2));
break;
case kOpRandom:
if (numParams != 3)
error("kOpRandom had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
val1 = _rnd->getRandomNumberRng(val2, val3);
debug(9, "[%d/%d] = rnd([%d/%d]=%d, [%d/%d]=%d) (%d)", script[pos + 1], arg1, script[pos + 2], arg2, val2, script[pos+3], arg3, val3, val1);
setArg(script[pos + 1], arg1, val1);
break;
case kOpExecuteScript:
if (numParams != 1)
error("kOpExecuteScript had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
debug(8, "run script [%d/%d]=%d", script[pos + 1], arg1, val1);
runScript(val1);
debug(8, "done run script");
break;
case kOpCallFunc:
if (numParams != 1)
error("kOpCallFunc had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
debug(8, "%d(%d, %d, %d)", (uint16)val1, _vars[1], _vars[2], _vars[3]);
_vars[0] = scriptFuncCall(val1, _vars[1], _vars[2], _vars[3]);
break;
case kOpBoolLessThanEq:
if (numParams != 2)
error("kOpBoolLessThanEq had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] <= [%d/%d]? (%d <= %d)", script[pos + 1], arg1, script[pos + 2], arg2, val1, val2);
lastResult = (val1 <= val2);
break;
case kOpBoolLessThan:
if (numParams != 2)
error("kOpBoolLessThan had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] < [%d/%d]? (%d < %d)", script[pos + 1], arg1, script[pos + 2], arg2, val1, val2);
lastResult = (val1 < val2);
break;
case kOpBoolGreaterThanEq:
if (numParams != 2)
error("kOpBoolGreaterThanEq had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] >= [%d/%d]? (%d >= %d)", script[pos + 1], arg1, script[pos + 2], arg2, val1, val2);
lastResult = (val1 >= val2);
break;
case kOpBoolGreaterThan:
if (numParams != 2)
error("kOpBoolGreaterThan had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] > [%d/%d]? (%d > %d)", script[pos + 1], arg1, script[pos + 2], arg2, val1, val2);
lastResult = (val1 > val2);
break;
case kOpBoolEqual:
if (numParams != 2)
error("kOpBoolEqual had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] == [%d/%d]? (%d == %d)", script[pos + 1], arg1, script[pos + 2], arg2, val1, val2);
lastResult = (val1 == val2);
break;
case kOpBoolNotEqual:
if (numParams != 2)
error("kOpBoolNotEqual had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "[%d/%d] != [%d/%d]? (%d != %d)", script[pos + 1], arg1, script[pos + 2], arg2, val1, val2);
lastResult = (val1 != val2);
break;
case kOpSaveArgs:
if (numParams != 0)
error("kOpSaveArgs had wrong number of params (%d)", numParams);
debug(9, "save args");
for (uint i = 1; i < 19; i++)
_stack[stackBase + i] = _vars[i];
break;
case kOpRestoreArgs:
if (numParams != 0)
error("kOpRestoreArgs had wrong number of params (%d)", numParams);
debug(9, "restore args");
for (uint i = 1; i < 19; i++)
_vars[i] = _stack[stackBase + i];
break;
case kOpReturn:
if (numParams != 1)
error("kOpReturn had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
debug(9, "return [%d/%d]=%d", script[pos + 1], arg1, val1);
_vars[0] = val1;
break;
case kOpLessThanEq:
if (numParams != 3)
error("kOpLessThanEq had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d] <= [%d/%d]? (%d <= %d)", script[pos + 1], arg1, script[pos + 2], arg2, script[pos + 3], arg3, val3, val2);
setArg(script[pos + 1], arg1, (val3 <= val2) ? 1 : 0);
break;
case kOpLessThan:
if (numParams != 3)
error("kOpLessThan had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d] < [%d/%d]? (%d < %d)", script[pos + 1], arg1, script[pos + 2], arg2, script[pos + 3], arg3, val3, val2);
setArg(script[pos + 1], arg1, (val3 < val2) ? 1 : 0);
break;
case kOpGreaterThanEq:
if (numParams != 3)
error("kOpGreaterThanEq had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d] >= [%d/%d]? (%d >= %d)", script[pos + 1], arg1, script[pos + 2], arg2, script[pos + 3], arg3, val3, val2);
setArg(script[pos + 1], arg1, (val3 >= val2) ? 1 : 0);
break;
case kOpGreaterThan:
if (numParams != 3)
error("kOpGreaterThan had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d] > [%d/%d]? (%d > %d)", script[pos + 1], arg1, script[pos + 2], arg2, script[pos + 3], arg3, val3, val2);
setArg(script[pos + 1], arg1, (val3 > val2) ? 1 : 0);
break;
case kOpEqual:
if (numParams != 3)
error("kOpEqual had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d] == [%d/%d]? (%d == %d)", script[pos + 1], arg1, script[pos + 2], arg2, script[pos + 3], arg3, val2, val3);
setArg(script[pos + 1], arg1, (val3 == val2) ? 1 : 0);
break;
case kOpNotEqual:
if (numParams != 3)
error("kOpNotEqual had wrong number of params (%d)", numParams);
val2 = getArg(script[pos + 2], arg2);
val3 = getArg(script[pos + 3], arg3);
debug(9, "[%d/%d] = [%d/%d] != [%d/%d]? (%d != %d)", script[pos + 1], arg1, script[pos + 2], arg2, script[pos + 3], arg3, val2, val3);
setArg(script[pos + 1], arg1, (val3 != val2) ? 1 : 0);
break;
case kOpJump:
if (numParams != 1)
error("kOpJump had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
debug(9, "jump by [%d/%d]=%d", script[pos + 1], arg1, val1);
pos += val1;
break;
case kOpJumpIfNot:
if (numParams != 1)
error("kOpJumpIfNot had wrong number of params (%d)", numParams);
if (lastResult)
break;
val1 = getArg(script[pos + 1], arg1);
debug(9, "jump if not, by [%d/%d]=%d", script[pos + 1], arg1, val1);
pos += val1;
break;
case kOpJumpIf:
if (numParams != 1)
error("kOpJumpIf had wrong number of params (%d)", numParams);
if (!lastResult)
break;
val1 = getArg(script[pos + 1], arg1);
debug(9, "jump if, by [%d/%d]=%d", script[pos + 1], arg1, val1);
pos += val1;
break;
case kOpJumpIfNotValue:
if (numParams != 2)
error("kOpJumpIfNotValue had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "jump if not [%d/%d]=%d", script[pos + 1], arg1, val1);
if (val1)
break;
debug(9, "--> jump by [%d/%d]=%d", script[pos + 2], arg2, val2);
pos += val2;
break;
case kOpJumpIfValue:
if (numParams != 2)
error("kOpJumpIfValue had wrong number of params (%d)", numParams);
val1 = getArg(script[pos + 1], arg1);
val2 = getArg(script[pos + 2], arg2);
debug(9, "jump if [%d/%d]=%d", script[pos + 1], arg1, val1);
if (!val1)
break;
debug(9, "--> jump by [%d/%d]=%d", script[pos + 2], arg2, val2);
pos += val2;
break;
default:
error("unknown script op 0x%02x", op);
}
pos += (1 + numParams);
if (op == kOpReturn)
break;
}
delete[] script;
_stack.resize(_stack.size() - 19);
}
int16 ComposerEngine::scriptFuncCall(uint16 id, int16 param1, int16 param2, int16 param3) {
switch (id) {
case kFuncPlayAnim:
debug(3, "kFuncPlayAnim(%d, %d, %d)", param1, param2, param3);
playAnimation(param1, param2, param3, 0);
return 1; // TODO: return 0 on failure
case kFuncStopAnim:
debug(3, "kFuncStopAnim(%d)", param1);
for (Common::List<Animation *>::iterator i = _anims.begin(); i != _anims.end(); i++) {
if ((*i)->_id == param1)
stopAnimation(*i);
}
return 0;
case kFuncQueueScript:
debug(3, "kFuncQueueScript(%d, %d, %d)", param1, param2, param3);
_queuedScripts[param1]._baseTime = _currentTime;
_queuedScripts[param1]._duration = 10 * param2;
_queuedScripts[param1]._count = 0xffffffff;
_queuedScripts[param1]._scriptId = param3;
return 0;
case kFuncDequeueScript:
debug(3, "kFuncDequeueScript(%d)", param1);
_queuedScripts[param1]._count = 0;
_queuedScripts[param1]._scriptId = 0;
return 0;
case kFuncSetCursor:
debug(3, "kSetCursor(%d, (%d, %d))", param1, param2, param3);
{
uint16 oldCursor = _mouseSpriteId;
setCursor(param1, Common::Point(param2, param3));
return oldCursor;
}
case kFuncGetCursor:
debug(3, "kFuncGetCursor()");
return _mouseSpriteId;
case kFuncShowCursor:
debug(3, "kFuncShowCursor()");
setCursorVisible(true);
return 0;
case kFuncHideCursor:
debug(3, "kFuncHideCursor()");
setCursorVisible(false);
return 0;
case kFuncActivateButton:
debug(3, "kFuncActivateButton(%d)", param1);
setButtonActive(param1, true);
return 1;
case kFuncDeactivateButton:
debug(3, "kFuncDeactivateButton(%d)", param1);
setButtonActive(param1, false);
return 1;
case kFuncNewPage:
debug(3, "kFuncNewPage(%d, %d)", param1, param2);
_pendingPageChanges.push_back(PendingPageChange(param1, true));
_pendingPageChanges.push_back(PendingPageChange(param2, false));
return 1;
case kFuncLoadPage:
debug(3, "kFuncLoadPage(%d)", param1);
_pendingPageChanges.push_back(PendingPageChange(param1, false));
return 1;
case kFuncUnloadPage:
debug(3, "kFuncUnloadPage(%d)", param1);
_pendingPageChanges.push_back(PendingPageChange(param1, true));
return 1;
case kFuncSetPalette:
// TODO: return 0 if not disabling (0) and doesn't exist
debug(4, "kFuncSetPalette(%d, %d)", param1, param2);
// this seems only needed for a script bug in the Gregory credits, sigh
if ((uint16)param2 > 100)
param2 = 100;
loadCTBL(param1, param2);
return 1;
case kFuncSaveVars:
debug(3, "kFuncSaveVars(%d)", param1);
{
Common::String filename = _targetName + Common::String::format(".%03d", param1);
Common::WriteStream *stream = _saveFileMan->openForSaving(filename);
for (uint i = 0; i < 1000; i++) {
stream->writeUint16LE(_vars[i]);
}
delete stream;
}
return 1;
case kFuncLoadVars:
debug(3, "kFuncLoadVars(%d, %d, %d)", param1, param2, param3);
{
Common::String filename = _targetName + Common::String::format(".%03d", param1);
Common::SeekableReadStream *stream = _saveFileMan->openForLoading(filename);
if (!stream) {
if (!_bookIni.hasKey(Common::String::format("%d", param1), "Data"))
return 0;
filename = getFilename("Data", param1);
Common::File *file = new Common::File();
if (!file->open(filename))
error("couldn't open '%s' to get vars id '%d'", filename.c_str(), param1);
stream = file;
}
if (param3 == 0)
param3 = 1000;
if (param2 < 0 || param3 < 0 || param2 + param3 > 1000)
error("can't read %d entries into %d from file '%s' for vars id '%d'", param3, param2, filename.c_str(), param1);
stream->skip(param2 * 2);
for (uint i = 0; i < (uint)param3; i++) {
if (stream->pos() + 1 > stream->size())
break;
_vars[param2 + i] = stream->readUint16LE();
}
delete stream;
}
return 1;
case kFuncQueueScriptOnce:
debug(3, "kFuncQueueScriptOnce(%d, %d, %d)", param1, param2, param3);
_queuedScripts[param1]._baseTime = _currentTime;
_queuedScripts[param1]._duration = 10 * param2;
_queuedScripts[param1]._count = 1;
_queuedScripts[param1]._scriptId = param3;
return 0;
case kFuncGetMousePos:
debug(3, "kFuncGetMousePos(%d, %d)", param1, param2);
_vars[param1] = _lastMousePos.x;
_vars[param2] = _lastMousePos.y;
return 0;
case kFuncChangeBackground:
debug(3, "kFuncChangeBackground(%d)", param1);
// TODO: return 1 if background existed, else 0
setBackground(param1);
return 1;
case kFuncSetBackgroundColor:
// TODO
warning("ignoring kFuncSetBackgroundColor(%d)", param1);
return 0;
case kFuncClearSprites:
debug(3, "kFuncClearSprites()");
removeSprite(0, 0);
return 0;
case kFuncAddSprite:
{
Common::Point pos(_vars[param3], _vars[param3 + 1]);
int16 zorder = _vars[param3 + 2];
debug(3, "kFuncAddSprite(%d, %d, [%d = (%d, %d), %d])", param1, param2, param3, pos.x, pos.y, zorder);
addSprite(param1, param2, zorder, pos);
}
return 0;
case kFuncRemoveSprite:
debug(3, "kFuncRemoveSprite(%d, %d)", param1, param2);
removeSprite(param1, param2);
return 0;
case kFuncQuit:
debug(3, "kFuncQuit()");
quitGame();
return 0;
case kFuncSaveData:
// TODO
warning("ignoring kFuncSaveData(%d, %d, %d)", param1, param2, param3);
return 1;
case kFuncLoadData:
debug(3, "kFuncLoadData(%d, %d, %d)", param1, param2, param3);
{
Common::String filename = getFilename("Data", param1);
Common::File *file = new Common::File();
if (!file->open(filename))
error("couldn't open '%s' to get data id '%d'", filename.c_str(), param1);
if (param3 == 0)
param3 = 1000;
if (param2 < 0 || param3 < 0 || param2 + param3 > 1000)
error("can't read %d entries into %d from file '%s' for data id '%d'", param3, param2, filename.c_str(), param1);
for (uint i = 0; i < (uint)param3; i++) {
if (file->pos() + 1 > file->size())
break;
_vars[param2 + i] = file->readUint16LE();
}
delete file;
}
return 1;
case kFuncGetSpriteSize:
debug(3, "kFuncGetSpriteSize(%d, %d, %d)", param1, param2, param3);
int16 width, height;
width = 0;
height = 0;
{
Common::SeekableReadStream *stream = getStreamForSprite(param1);
if (stream) {
stream->readUint16LE();
height = stream->readSint16LE();
width = stream->readSint16LE();
delete stream;
}
}
_vars[param2] = width;
_vars[param3] = height;
return 0;
default:
error("unknown scriptFuncCall %d(%d, %d, %d)", (uint32)id, param1, param2, param3);
}
}
OldScript::OldScript(uint16 id, Common::SeekableReadStream *stream) : _id(id), _stream(stream) {
_size = _stream->readUint32LE();
_stream->skip(2);
_currDelay = 0;
_zorder = 10;
}
OldScript::~OldScript() {
delete _stream;
}
void ComposerEngine::runOldScript(uint16 id, uint16 wait) {
stopOldScript(id);
Common::SeekableReadStream *stream = getResource(ID_SCRP, id);
OldScript *script = new OldScript(id, stream);
script->_currDelay = wait;
_oldScripts.push_back(script);
}
void ComposerEngine::stopOldScript(uint16 id) {
// FIXME: this could potentially (in the case of buggy script) be called on an in-use script
for (Common::List<OldScript *>::iterator i = _oldScripts.begin(); i != _oldScripts.end(); i++) {
if ((*i)->_id == id) {
removeSprite(0, id);
delete *i;
i = _oldScripts.reverse_erase(i);
}
}
}
void ComposerEngine::tickOldScripts() {
for (Common::List<OldScript *>::iterator i = _oldScripts.begin(); i != _oldScripts.end(); i++) {
if (!tickOldScript(*i)) {
delete *i;
i = _oldScripts.reverse_erase(i);
}
}
}
enum {
kOldOpNoOp = 0,
kOldOpReplaceSprite = 1,
kOldOpPlayWav = 2,
kOldOpRunScript = 3,
kOldOpStopScript = 4,
kOldOpActivateButton = 5,
kOldOpDeactivateButton = 6,
kOldOpDrawSprite = 7,
kOldOpRemoveSprite = 8,
kOldOpDisableMouseInput = 9,
kOldOpEnableMouseInput = 10,
kOldOpWait = 11,
kOldOpRandWait = 12,
kOldOpDrawGlobalSprite = 13,
kOldOpRemoveGlobalSprite = 14,
kOldOpSetZOrder = 15,
kOldOpPlayPipe = 16,
kOldOpStopPipe = 17,
kOldOpNewScreen = 20,
kOldOpRunRandom = 22
};
bool ComposerEngine::tickOldScript(OldScript *script) {
if (script->_currDelay) {
script->_currDelay--;
return true;
}
bool running = true;
bool erasedOldSprite = false;
while (running && script->_stream->pos() < (int)script->_size) {
uint16 spriteId, scriptId, buttonId, pipeId;
Common::Point spritePos;
script->_stream->skip(0);
byte op = script->_stream->readByte();
switch (op) {
case kOldOpNoOp:
debug(3, "kOldOpNoOp()");
running = false;
break;
case kOldOpReplaceSprite:
if (!erasedOldSprite) {
removeSprite(0, script->_id);
erasedOldSprite = true;
}
spriteId = script->_stream->readUint16LE();
spritePos.x = script->_stream->readSint16LE();
spritePos.y = script->_stream->readSint16LE();
debug(3, "kOldOpReplaceSprite(%d, %d, %d)", spriteId, spritePos.x, spritePos.y);
addSprite(spriteId, script->_id, script->_zorder, spritePos);
break;
case kOldOpPlayWav:
uint16 wavId, prio;
wavId = script->_stream->readUint16LE();
prio = script->_stream->readUint16LE();
debug(3, "kOldOpPlayWav(%d, %d)", wavId, prio);
playWaveForAnim(wavId, prio, false);
break;
case kOldOpRunScript:
scriptId = script->_stream->readUint16LE();
debug(3, "kOldOpRunScript(%d)", scriptId);
if (scriptId == script->_id) {
// reset ourselves
removeSprite(0, script->_id);
script->_stream->seek(6);
} else {
runScript(scriptId);
}
break;
case kOldOpStopScript:
scriptId = script->_stream->readUint16LE();
debug(3, "kOldOpStopScript(%d)", scriptId);
removeSprite(0, scriptId);
stopOldScript(scriptId);
break;
case kOldOpActivateButton:
buttonId = script->_stream->readUint16LE();
debug(3, "kOldOpActivateButton(%d)", buttonId);
setButtonActive(buttonId, true);
break;
case kOldOpDeactivateButton:
buttonId = script->_stream->readUint16LE();
debug(3, "kOldOpDeactivateButton(%d)", buttonId);
setButtonActive(buttonId, false);
break;
case kOldOpDrawSprite:
spriteId = script->_stream->readUint16LE();
spritePos.x = script->_stream->readSint16LE();
spritePos.y = script->_stream->readSint16LE();
debug(3, "kOldOpDrawSprite(%d, %d, %d)", spriteId, spritePos.x, spritePos.y);
addSprite(spriteId, script->_id, script->_zorder, spritePos);
break;
case kOldOpRemoveSprite:
spriteId = script->_stream->readUint16LE();
debug(3, "kOldOpRemoveSprite(%d)", spriteId);
removeSprite(spriteId, script->_id);
break;
case kOldOpDisableMouseInput:
debug(3, "kOldOpDisableMouseInput()");
setCursorVisible(false);
break;
case kOldOpEnableMouseInput:
debug(3, "kOldOpEnableMouseInput()");
setCursorVisible(true);
break;
case kOldOpWait:
script->_currDelay = script->_stream->readUint16LE();
debug(3, "kOldOpWait(%d)", script->_currDelay);
break;
case kOldOpRandWait:
uint16 min, max;
min = script->_stream->readUint16LE();
max = script->_stream->readUint16LE();
debug(3, "kOldOpRandWait(%d, %d)", min, max);
script->_currDelay = _rnd->getRandomNumberRng(min, max);
break;
case kOldOpDrawGlobalSprite:
spriteId = script->_stream->readUint16LE();
spritePos.x = script->_stream->readSint16LE();
spritePos.y = script->_stream->readSint16LE();
debug(3, "kOldOpDrawGlobalSprite(%d, %d, %d)", spriteId, spritePos.x, spritePos.y);
addSprite(spriteId, 0, script->_zorder, spritePos);
break;
case kOldOpRemoveGlobalSprite:
spriteId = script->_stream->readUint16LE();
debug(3, "kOldOpRemoveGlobalSprite(%d)", spriteId);
removeSprite(spriteId, 0);
break;
case kOldOpSetZOrder:
script->_zorder = script->_stream->readUint16LE();
debug(3, "kOldOpSetZOrder(%d)", script->_zorder);
break;
case kOldOpPlayPipe:
pipeId = script->_stream->readUint16LE();
debug(3, "kOldOpPlayPipe(%d)", pipeId);
playPipe(pipeId);
break;
case kOldOpStopPipe:
pipeId = script->_stream->readUint16LE();
debug(3, "kOldOpStopPipe(%d)", pipeId);
// yes, pipeId is ignored here..
stopPipes();
break;
case kOldOpNewScreen:
uint16 newScreenId;
newScreenId = script->_stream->readUint16LE();
debug(3, "kOldOpNewScreen(%d)", newScreenId);
if (!newScreenId) {
quitGame();
} else {
_pendingPageChanges.clear();
_pendingPageChanges.push_back(PendingPageChange(newScreenId, false));
}
break;
case kOldOpRunRandom:
uint16 randomId;
randomId = script->_stream->readUint16LE();
debug(3, "kOldOpRunRandom(%d)", randomId);
if (!_randomEvents.contains(randomId)) {
warning("kOldOpRunRandom found no entries for id %d", randomId);
} else {
uint32 randValue = _rnd->getRandomNumberRng(0, 32767);
const Common::Array<RandomEvent> &events = _randomEvents[randomId];
uint i = 0;
for (i = 0; i < events.size(); i++) {
if ((i + 1 == events.size()) || (randValue <= events[i].weight)) {
runScript(events[i].scriptId);
break;
} else {
randValue -= events[i].weight;
}
}
}
break;
default:
error("unknown oldScript op %d", op);
}
}
if (script->_stream->pos() >= (int)script->_size) {
// stop running if we ran out of script
removeSprite(0, script->_id);
return false;
}
return true;
}
} // End of namespace Composer
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