mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 05:38:56 +00:00
148872d1fd
standard printf()s left, though. svn-id: r13791
458 lines
10 KiB
C++
458 lines
10 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2004 The ScummVM project
|
|
*
|
|
* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
|
|
*
|
|
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* $Header$
|
|
*
|
|
*/
|
|
|
|
// Event management module
|
|
|
|
|
|
#include "saga.h"
|
|
#include "reinherit.h"
|
|
|
|
#include "yslib.h"
|
|
|
|
#include "animation_mod.h"
|
|
#include "console_mod.h"
|
|
#include "scene_mod.h"
|
|
#include "gfx_mod.h"
|
|
#include "interface_mod.h"
|
|
#include "text_mod.h"
|
|
#include "palanim_mod.h"
|
|
#include "render_mod.h"
|
|
#include "game_mod.h"
|
|
#include "sndres.h"
|
|
#include "music.h"
|
|
|
|
#include "events_mod.h"
|
|
#include "events.h"
|
|
|
|
namespace Saga {
|
|
|
|
static YS_DL_LIST *EventList;
|
|
|
|
int EVENT_Init() {
|
|
debug(0, "Initializing event subsystem...");
|
|
EventList = ys_dll_create();
|
|
return (EventList != NULL) ? R_SUCCESS : R_FAILURE;
|
|
}
|
|
|
|
int EVENT_Shutdown() {
|
|
debug(0, "Shutting down event subsystem...");
|
|
EVENT_FreeList();
|
|
return R_SUCCESS;
|
|
}
|
|
|
|
// Function to process event list once per frame.
|
|
// First advances event times, then processes each event with the appropriate
|
|
// handler depending on the type of event.
|
|
int EVENT_HandleEvents(long msec) {
|
|
YS_DL_NODE *walk_node;
|
|
YS_DL_NODE *next_node;
|
|
|
|
R_EVENT *event_p;
|
|
|
|
long delta_time;
|
|
int result;
|
|
|
|
// Advance event times
|
|
ProcessEventTime(msec);
|
|
|
|
// Process each event in list
|
|
for (walk_node = ys_dll_head(EventList); walk_node != NULL; walk_node = next_node) {
|
|
event_p = (R_EVENT *)ys_dll_get_data(walk_node);
|
|
|
|
// Save next event in case current event is handled and removed
|
|
next_node = ys_dll_next(walk_node);
|
|
|
|
// Call the appropriate event handler for the specific event type
|
|
switch (event_p->type) {
|
|
|
|
case R_ONESHOT_EVENT:
|
|
result = HandleOneShot(event_p);
|
|
break;
|
|
|
|
case R_CONTINUOUS_EVENT:
|
|
result = HandleContinuous(event_p);
|
|
break;
|
|
|
|
case R_INTERVAL_EVENT:
|
|
result = HandleInterval(event_p);
|
|
break;
|
|
|
|
default:
|
|
result = R_EVENT_INVALIDCODE;
|
|
warning("Invalid event code encountered");
|
|
break;
|
|
}
|
|
|
|
// Process the event appropriately based on result code from
|
|
// handler
|
|
if ((result == R_EVENT_DELETE) || (result == R_EVENT_INVALIDCODE)) {
|
|
// If there is no event chain, delete the base event.
|
|
if (event_p->chain == NULL) {
|
|
ys_dll_delete(walk_node);
|
|
} else {
|
|
// If there is an event chain present, move the next event
|
|
// in the chain up, adjust it by the previous delta time,
|
|
// and reprocess the event by adjusting next_node. */
|
|
delta_time = event_p->time;
|
|
|
|
ys_dll_replace(walk_node, event_p->chain, sizeof *event_p);
|
|
|
|
event_p = (R_EVENT *)ys_dll_get_data(walk_node);
|
|
event_p->time += delta_time;
|
|
|
|
next_node = walk_node;
|
|
}
|
|
} else if (result == R_EVENT_BREAK) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return R_SUCCESS;
|
|
}
|
|
|
|
int HandleContinuous(R_EVENT *event) {
|
|
double event_pc = 0.0; // Event completion percentage
|
|
int event_done = 0;
|
|
|
|
R_BUFFER_INFO buf_info;
|
|
SCENE_BGINFO bg_info;
|
|
R_SURFACE *back_buf;
|
|
|
|
event_pc = ((double)event->duration - event->time) / event->duration;
|
|
|
|
if (event_pc >= 1.0) {
|
|
// Cap percentage to 100
|
|
event_pc = 1.0;
|
|
event_done = 1;
|
|
}
|
|
|
|
if (event_pc < 0.0) {
|
|
// Event not signaled, skip it
|
|
return R_EVENT_CONTINUE;
|
|
} else if (!(event->code & R_SIGNALED)) {
|
|
// Signal event
|
|
event->code |= R_SIGNALED;
|
|
event_pc = 0.0;
|
|
}
|
|
|
|
switch (event->code & R_EVENT_MASK) {
|
|
case R_PAL_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_BLACKTOPAL:
|
|
back_buf = GFX_GetBackBuffer();
|
|
GFX_BlackToPal(back_buf, (PALENTRY *)event->data, event_pc);
|
|
break;
|
|
|
|
case EVENT_PALTOBLACK:
|
|
back_buf = GFX_GetBackBuffer();
|
|
GFX_PalToBlack(back_buf, (PALENTRY *)event->data, event_pc);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case R_TRANSITION_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_DISSOLVE:
|
|
RENDER_GetBufferInfo(&buf_info);
|
|
SCENE_GetBGInfo(&bg_info);
|
|
TRANSITION_Dissolve(buf_info.r_bg_buf, buf_info.r_bg_buf_w, buf_info.r_bg_buf_h,
|
|
buf_info.r_bg_buf_w, bg_info.bg_buf, bg_info.bg_p, 0, event_pc);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case R_CONSOLE_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_ACTIVATE:
|
|
CON_DropConsole(event_pc);
|
|
break;
|
|
case EVENT_DEACTIVATE:
|
|
CON_RaiseConsole(event_pc);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
|
|
}
|
|
|
|
if (event_done) {
|
|
return R_EVENT_DELETE;
|
|
}
|
|
|
|
return R_EVENT_CONTINUE;
|
|
}
|
|
|
|
static int HandleOneShot(R_EVENT *event) {
|
|
R_SURFACE *back_buf;
|
|
|
|
static SCENE_BGINFO bginfo;
|
|
|
|
if (event->time > 0) {
|
|
return R_EVENT_CONTINUE;
|
|
}
|
|
|
|
// Event has been signaled
|
|
|
|
switch (event->code & R_EVENT_MASK) {
|
|
case R_TEXT_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_DISPLAY:
|
|
TEXT_SetDisplay((R_TEXTLIST_ENTRY *)event->data, 1);
|
|
break;
|
|
case EVENT_REMOVE:
|
|
{
|
|
R_SCENE_INFO scene_info;
|
|
SCENE_GetInfo(&scene_info);
|
|
TEXT_DeleteEntry(scene_info.text_list, (R_TEXTLIST_ENTRY *)event->data);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
break;
|
|
case R_VOICE_EVENT:
|
|
_vm->_sndRes->playVoice(event->param);
|
|
break;
|
|
case R_MUSIC_EVENT:
|
|
_vm->_music->play(event->param, event->param2);
|
|
break;
|
|
case R_BG_EVENT:
|
|
{
|
|
R_BUFFER_INFO rbuf_info;
|
|
R_POINT bg_pt;
|
|
|
|
if (SCENE_GetMode() == R_SCENE_MODE_NORMAL) {
|
|
|
|
back_buf = GFX_GetBackBuffer();
|
|
|
|
RENDER_GetBufferInfo(&rbuf_info);
|
|
SCENE_GetBGInfo(&bginfo);
|
|
|
|
bg_pt.x = bginfo.bg_x;
|
|
bg_pt.y = bginfo.bg_y;
|
|
|
|
GFX_BufToBuffer(rbuf_info.r_bg_buf, rbuf_info.r_bg_buf_w, rbuf_info.r_bg_buf_h,
|
|
bginfo.bg_buf, bginfo.bg_w, bginfo.bg_h, NULL, &bg_pt);
|
|
if (event->param == SET_PALETTE) {
|
|
PALENTRY *pal_p;
|
|
SCENE_GetBGPal(&pal_p);
|
|
GFX_SetPalette(back_buf, pal_p);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case R_ANIM_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_FRAME:
|
|
ANIM_Play(event->param, event->time);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case R_SCENE_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_END:
|
|
SCENE_Next();
|
|
return R_EVENT_BREAK;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case R_PALANIM_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_CYCLESTART:
|
|
PALANIM_CycleStart();
|
|
break;
|
|
case EVENT_CYCLESTEP:
|
|
PALANIM_CycleStep(event->time);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case R_INTERFACE_EVENT:
|
|
switch (event->op) {
|
|
case EVENT_ACTIVATE:
|
|
INTERFACE_Activate();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return R_EVENT_DELETE;
|
|
}
|
|
|
|
static int HandleInterval(R_EVENT *event) {
|
|
YS_IGNORE_PARAM(event);
|
|
return R_EVENT_DELETE;
|
|
}
|
|
|
|
// Schedules an event in the event list; returns a pointer to the scheduled
|
|
// event suitable for chaining if desired.
|
|
R_EVENT *EVENT_Queue(R_EVENT *event) {
|
|
YS_DL_NODE *new_node;
|
|
R_EVENT *queued_event;
|
|
|
|
event->chain = NULL;
|
|
new_node = ys_dll_add_tail(EventList, event, sizeof *event);
|
|
|
|
if (new_node == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
queued_event = (R_EVENT *)ys_dll_get_data(new_node);
|
|
|
|
InitializeEvent(queued_event);
|
|
|
|
return queued_event;
|
|
}
|
|
|
|
// Places a 'add_event' on the end of an event chain given by 'head_event'
|
|
// (head_event may be in any position in the event chain)
|
|
R_EVENT *EVENT_Chain(R_EVENT *head_event, R_EVENT *add_event) {
|
|
R_EVENT *walk_event;
|
|
R_EVENT *new_event;
|
|
|
|
// Allocate space for new event
|
|
new_event = (R_EVENT *)malloc(sizeof *new_event);
|
|
if (new_event == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
// Copy event data to new event
|
|
*new_event = *add_event;
|
|
|
|
// Walk to end of chain
|
|
for (walk_event = head_event; walk_event->chain != NULL; walk_event = walk_event->chain) {
|
|
continue;
|
|
}
|
|
|
|
// Place new event
|
|
walk_event->chain = new_event;
|
|
new_event->chain = NULL;
|
|
InitializeEvent(new_event);
|
|
|
|
return new_event;
|
|
}
|
|
|
|
static int InitializeEvent(R_EVENT *event) {
|
|
switch (event->type) {
|
|
case R_ONESHOT_EVENT:
|
|
break;
|
|
case R_CONTINUOUS_EVENT:
|
|
event->time += event->duration;
|
|
break;
|
|
case R_INTERVAL_EVENT:
|
|
break;
|
|
default:
|
|
return R_FAILURE;
|
|
break;
|
|
}
|
|
|
|
return R_SUCCESS;
|
|
}
|
|
|
|
int EVENT_ClearList() {
|
|
YS_DL_NODE *walk_node;
|
|
YS_DL_NODE *next_node;
|
|
R_EVENT *chain_walk;
|
|
R_EVENT *next_chain;
|
|
R_EVENT *event_p;
|
|
|
|
// Walk down event list
|
|
for (walk_node = ys_dll_head(EventList); walk_node != NULL; walk_node = next_node) {
|
|
next_node = ys_dll_next(walk_node);
|
|
event_p = (R_EVENT *)ys_dll_get_data(walk_node);
|
|
|
|
// Only remove events not marked R_NODESTROY (engine events)
|
|
if (!(event_p->code & R_NODESTROY)) {
|
|
// Remove any events chained off this one */
|
|
for (chain_walk = event_p->chain; chain_walk != NULL; chain_walk = next_chain) {
|
|
next_chain = chain_walk->chain;
|
|
free(chain_walk);
|
|
}
|
|
ys_dll_delete(walk_node);
|
|
}
|
|
}
|
|
|
|
return R_SUCCESS;
|
|
}
|
|
|
|
// Removes all events from the list (even R_NODESTROY)
|
|
int EVENT_FreeList() {
|
|
YS_DL_NODE *walk_node;
|
|
YS_DL_NODE *next_node;
|
|
R_EVENT *chain_walk;
|
|
R_EVENT *next_chain;
|
|
R_EVENT *event_p;
|
|
|
|
// Walk down event list
|
|
for (walk_node = ys_dll_head(EventList); walk_node != NULL; walk_node = next_node) {
|
|
event_p = (R_EVENT *)ys_dll_get_data(walk_node);
|
|
// Remove any events chained off current node
|
|
for (chain_walk = event_p->chain; chain_walk != NULL; chain_walk = next_chain) {
|
|
next_chain = chain_walk->chain;
|
|
free(chain_walk);
|
|
}
|
|
|
|
// Delete current node
|
|
next_node = ys_dll_next(walk_node);
|
|
ys_dll_delete(walk_node);
|
|
}
|
|
|
|
return R_SUCCESS;
|
|
}
|
|
|
|
// Walks down the event list, updating event times by 'msec'.
|
|
static int ProcessEventTime(long msec) {
|
|
YS_DL_NODE *walk_node;
|
|
R_EVENT *event_p;
|
|
uint16 event_count = 0;
|
|
|
|
for (walk_node = ys_dll_head(EventList); walk_node != NULL; walk_node = ys_dll_next(walk_node)) {
|
|
event_p = (R_EVENT *)ys_dll_get_data(walk_node);
|
|
event_p->time -= msec;
|
|
event_count++;
|
|
|
|
if (event_count > R_EVENT_WARNINGCOUNT) {
|
|
warning("Event list exceeds %u", R_EVENT_WARNINGCOUNT);
|
|
}
|
|
}
|
|
|
|
return R_SUCCESS;
|
|
}
|
|
|
|
} // End of namespace Saga
|