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demo.cpp
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demo.cpp
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/*
* Abuse - dark 2D side-scrolling platform game
* Copyright (c) 1995 Crack dot Com
* Copyright (c) 2005-2011 Sam Hocevar <[email protected]>
*
* This software was released into the Public Domain. As with most public
* domain software, no warranty is made or implied by Crack dot Com, by
* Jonathan Clark, or by Sam Hocevar.
*/
#if defined HAVE_CONFIG_H
# include "config.h"
#endif
#include "common.h"
#include "game.h"
#include "demo.h"
#include "specs.h"
#include "jwindow.h"
#include "dprint.h"
#include "dev.h"
#include "jrand.h"
#include "lisp.h"
#include "clisp.h"
#include "netface.h"
demo_manager demo_man;
ivec2 last_demo_mpos;
int last_demo_mbut;
extern base_memory_struct *base; // points to shm_addr
extern int idle_ticks;
extern void net_receive();
extern void net_send(int force);
extern void fade_in(image *im, int steps);
extern void fade_out(int steps);
void get_event(Event &ev)
{ wm->get_event(ev);
switch (ev.type)
{
case EV_KEY :
{
if (demo_man.state==demo_manager::PLAYING)
demo_man.set_state(demo_manager::NORMAL);
else if (ev.key==JK_ENTER && demo_man.state==demo_manager::RECORDING)
{
demo_man.set_state(demo_manager::NORMAL);
the_game->show_help("Finished recording");
}
} break;
}
last_demo_mpos = ev.mouse_move;
last_demo_mbut = ev.mouse_button;
idle_ticks=0;
}
int event_waiting()
{ return wm->IsPending(); }
int demo_manager::start_recording(char *filename)
{
if (!current_level) return 0;
record_file=open_file(filename,"wb");
if (record_file->open_failure()) { delete record_file; return 0; }
char name[100];
strcpy(name,current_level->name());
the_game->load_level(name);
record_file->write((void *)"DEMO,VERSION:2",14);
record_file->write_uint8(strlen(name)+1);
record_file->write(name,strlen(name)+1);
if (DEFINEDP(symbol_value(l_difficulty)))
{
if (symbol_value(l_difficulty)==l_easy) record_file->write_uint8(0);
else if (symbol_value(l_difficulty)==l_medium) record_file->write_uint8(1);
else if (symbol_value(l_difficulty)==l_hard) record_file->write_uint8(2);
else record_file->write_uint8(3);
} else record_file->write_uint8(3);
state=RECORDING;
reset_game();
return 1;
}
void demo_manager::do_inputs()
{
switch (state)
{
case RECORDING :
{
base->packet.packet_reset(); // reset input buffer
view *p=player_list; // get current inputs
for (; p; p=p->next)
if (p->local_player())
p->get_input();
base->packet.write_uint8(SCMD_SYNC);
base->packet.write_uint16(make_sync());
demo_man.save_packet(base->packet.packet_data(),base->packet.packet_size());
process_packet_commands(base->packet.packet_data(),base->packet.packet_size());
} break;
case PLAYING :
{
uint8_t buf[1500];
int size;
if (get_packet(buf,size)) // get starting inputs
{
process_packet_commands(buf, size);
ivec2 mouse = the_game->GameToMouse(ivec2(player_list->pointer_x,
player_list->pointer_y),
player_list);
wm->SetMousePos((small_render ? 2 : 1) * mouse);
}
else
{
set_state(NORMAL);
return ;
}
} break;
default :
break;
}
}
void demo_manager::reset_game()
{
if (dev&EDIT_MODE) toggle_edit_mode();
the_game->set_state(RUN_STATE);
rand_on=0;
view *v=player_list;
for (; v; v=v->next) { if (v->m_focus) v->reset_player(); }
last_demo_mpos = ivec2(0, 0);
last_demo_mbut = 0;
current_level->set_tick_counter(0);
}
int demo_manager::start_playing(char *filename)
{
uint8_t sig[15];
record_file=open_file(filename,"rb");
if (record_file->open_failure()) { delete record_file; return 0; }
char name[100],nsize,diff;
if (record_file->read(sig,14)!=14 ||
memcmp(sig,"DEMO,VERSION:2",14)!=0 ||
record_file->read(&nsize,1)!=1 ||
record_file->read(name,nsize)!=nsize ||
record_file->read(&diff,1)!=1)
{ delete record_file; return 0; }
char tname[100],*c;
strcpy(tname,name);
c=tname;
while (*c) { if (*c=='\\') *c='/'; c++; }
bFILE *probe=open_file(tname,"rb"); // see if the level still exists?
if (probe->open_failure()) { delete record_file; delete probe; return 0; }
delete probe;
the_game->load_level(tname);
initial_difficulty = l_difficulty;
switch (diff)
{
case 0: l_difficulty->SetValue(l_easy); break;
case 1: l_difficulty->SetValue(l_medium); break;
case 2: l_difficulty->SetValue(l_hard); break;
case 3: l_difficulty->SetValue(l_extreme); break;
}
state=PLAYING;
reset_game();
return 1;
}
int demo_manager::set_state(demo_state new_state, char *filename)
{
if (new_state==state) return 1;
switch (state)
{
case RECORDING :
{ delete record_file; } break;
case PLAYING :
{
/*
fade_in(cache.img(cache.reg("art/help.spe","sell6",SPEC_IMAGE,1)),8);
Timer now; now.WaitMs(2000);
fade_out(8);
*/
delete record_file;
l_difficulty = initial_difficulty;
the_game->set_state(MENU_STATE);
wm->Push(new Event(ID_NULL,NULL));
view *v=player_list;
for (; v; v=v->next) // reset all the players
{ if (v->m_focus) { v->reset_player(); v->m_focus->set_aistate(0); } }
delete current_level;
current_level=NULL;
the_game->reset_keymap();
base->input_state=INPUT_PROCESSING;
} break;
default :
break;
}
switch (new_state)
{
case RECORDING :
{ return start_recording(filename); } break;
case PLAYING :
{ return start_playing(filename); } break;
case NORMAL :
{ state=NORMAL; } break;
}
return 1;
}
int demo_manager::save_packet(void *packet, int packet_size) // returns non 0 if actually saved
{
if (state==RECORDING)
{
uint16_t ps=lstl(packet_size);
if (record_file->write(&ps,2)!=2 ||
record_file->write(packet,packet_size)!=packet_size)
{
set_state(NORMAL);
return 0;
}
return 1;
} else return 0;
}
int demo_manager::get_packet(void *packet, int &packet_size) // returns non 0 if actually loaded
{
if (state==PLAYING)
{
uint16_t ps;
if (record_file->read(&ps,2)!=2)
{
set_state(NORMAL);
return 0;
}
ps=lstl(ps);
if (record_file->read(packet,ps)!=ps)
{
set_state(NORMAL);
return 0;
}
packet_size=ps;
return 1;
}
return 0;
}