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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/dialog.h"
#include "teenagent/resources.h"
#include "teenagent/scene.h"
#include "teenagent/teenagent.h"
namespace TeenAgent {
void Dialog::show(uint16 dialogNum, Scene *scene, uint16 animation1, uint16 animation2, byte color1, byte color2, byte slot1, byte slot2) {
uint16 addr = _vm->res->getDialogAddr(dialogNum);
// WORKAROUND: For Dialog 163, The usage of this in the engine overlaps the previous dialog i.e. the
// starting offset used is two bytes early, thus implicitly changing the first command of this dialog
// from NEW_LINE to CHANGE_CHARACTER.
// FIXME: Unsure if this is correct behaviour or if this is a regression from the original. Check this.
// Similar issue occurs with Dialog 190 which is used from dialogue stack at 0x7403, rather than start of 0x7405
// Similar issue occurs with Dialog 0 which is used from dialogue stack at 0x0001, rather than start of 0x0000
if (dialogNum == 163)
addr -= 2;
show(scene, addr, animation1, animation2, color1, color2, slot1, slot2);
}
void Dialog::show(Scene *scene, uint16 addr, uint16 animation1, uint16 animation2, byte color1, byte color2, byte slot1, byte slot2) {
debugC(0, kDebugDialog, "Dialog::show(%04x, %u:%u, %u:%u)", addr, slot1, animation1, slot2, animation2);
int n = 0;
Common::String message;
byte color = color1;
if (animation1 != 0) {
SceneEvent e1(SceneEvent::kPlayAnimation);
e1.animation = animation1;
e1.slot = 0xc0 | slot1; //looped, paused
scene->push(e1);
}
if (animation2 != 0) {
SceneEvent e2(SceneEvent::kPlayAnimation);
e2.animation = animation2;
e2.slot = 0xc0 | slot2; //looped, paused
scene->push(e2);
}
while (n < 4) {
byte c = _vm->res->eseg.get_byte(addr++);
debugC(1, kDebugDialog, "%02x: %c", c, c > 0x20? c: '.');
switch (c) {
case 0:
++n;
switch (n) {
case 1:
debugC(1, kDebugDialog, "new line\n");
if (!message.empty())
message += '\n';
break;
case 2:
debugC(1, kDebugDialog, "displaymessage %s", message.c_str());
if (color == color2) {
//pause animation in other slot
SceneEvent e1(SceneEvent::kPauseAnimation);
e1.slot = 0x80 | slot1;
scene->push(e1);
SceneEvent e2(SceneEvent::kPlayAnimation);
e2.animation = animation2;
e2.slot = 0x80 | slot2;
scene->push(e2);
} else if (color == color1) {
//pause animation in other slot
SceneEvent e2(SceneEvent::kPauseAnimation);
e2.slot = 0x80 | slot2;
scene->push(e2);
SceneEvent e1(SceneEvent::kPlayAnimation);
e1.animation = animation1;
e1.slot = 0x80 | slot1;
scene->push(e1);
}
message.trim();
if (!message.empty()) {
SceneEvent em(SceneEvent::kMessage);
em.message = message;
em.color = color;
if (color == color1)
em.slot = slot1;
if (color == color2)
em.slot = slot2;
scene->push(em);
message.clear();
}
break;
case 3:
color = (color == color1) ? color2 : color1;
debugC(1, kDebugDialog, "changing color to %02x", color);
break;
default:
break;
}
break;
case 0xff:
//FIXME : wait for the next cycle of the animation
break;
default:
message += c;
n = 0;
break;
}
}
SceneEvent ec(SceneEvent::kClearAnimations);
scene->push(ec);
}
uint16 Dialog::pop(Scene *scene, uint16 addr, uint16 animation1, uint16 animation2, byte color1, byte color2, byte slot1, byte slot2) {
debugC(0, kDebugDialog, "Dialog::pop(%04x, %u:%u, %u:%u)", addr, slot1, animation1, slot2, animation2);
uint16 next;
do {
next = _vm->res->dseg.get_word(addr);
addr += 2;
} while (next == 0);
uint16 next2 = _vm->res->dseg.get_word(addr);
if (next2 != 0xffff)
_vm->res->dseg.set_word(addr - 2, 0);
show(scene, next, animation1, animation2, color1, color2, slot1, slot2);
return next;
}
} // End of namespace TeenAgent
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