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/* Copyright (C) 1994-2003 Revolution Software Ltd
*
* 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.
*
* $Header$
*/
#include "stdafx.h"
#include "build_display.h"
#include "credits.h"
#include "debug.h"
#include "defs.h"
#include "function.h"
#include "interpreter.h"
#include "layers.h" // for 'this_screen' structure
#include "logic.h"
#include "protocol.h"
#include "resman.h"
#include "sword2.h" // for CloseGame()
Object_graphic engine_graph; // global for engine
Object_mega engine_mega; // global for engine
int32 FN_test_function(int32 *params) {
// param 0 address of a flag
Zdebug(" TEST %d %d", params[0], RESULT);
return IR_CONT;
}
int32 FN_test_flags(int32 *params) {
// param 0 value of flag
// Zdebug("\nFN_test_flags %d, %d\n", params[0], params[1]);
return IR_CONT;
}
int32 FN_gosub(int32 *params) { // Tony23Sept96
// hurray, script subroutines
// param 0 id of script
LLogic.Logic_up(params[0]);
// logic goes up - pc is saved for current level
return IR_GOSUB;
}
int32 FN_new_script(int32 *params) { // Tony13Nov96
// change current script - must be followed by a TERMINATE script
// directive
// param 0 id of script
Zdebug("FN_new_script %d", params[0]);
// must clear this
PLAYER_ACTION = 0;
LLogic.Logic_replace(params[0]);
//drop out no pc save - and around again
return IR_TERMINATE;
}
int32 FN_interact(int32 *params) { // Tony13Nov96
// run targets action on a subroutine
// called by player on his base level 0 idle, for example
// param 0 id of target from which we derive action script
// reference
Zdebug("FN_interact %d", params[0]);
// must clear this
PLAYER_ACTION = 0;
// 3rd script of clicked on id
LLogic.Logic_up((params[0] * 65536) + 2);
// out, up and around again - pc is saved for current level to be
// returned to
return IR_GOSUB;
}
int32 FN_preload(int32 *params) { // (1Nov96 JEL)
// Open & close a resource.
// Forces a resource into memory before it's "officially" opened for
// use. eg. if an anim needs to run on smoothly from another,
// "preloading" gets it into memory in advance to avoid the cacheing
// delay that normally occurs before the first frame.
res_man.Res_open(params[0]); // open resource
res_man.Res_close(params[0]); // close resource
return IR_CONT; // continue script
}
int32 FN_prefetch(int32 *params) {
// Go fetch resource in the background.
return IR_CONT;
}
int32 FN_fetch_wait(int32 *params) {
// Fetches a resource in the background but prevents the script from
// continuing until the resource is in memory.
return IR_CONT;
}
int32 FN_release(int32 *params) {
// Releases a resource from memory. Used for freeing memory for
// sprites that have just been used and will not be used again.
// Sometimes it is better to kick out a sprite straight away so that
// the memory can be used for more frequent animations.
return IR_CONT;
}
int32 FN_random(int32 *params) { // (1nov96 JEL)
// Generates a random number between 'min' & 'max' inclusive, and
// sticks it in the script flag 'result'
uint32 min = params[0];
uint32 max = params[1];
// return_value = random integer between min and max, inclusive
RESULT = (rand() % (max-min + 1)) + min;
// continue script
return IR_CONT;
}
int32 FN_pause(int32 *params) { // (19nov96 JEL)
// params: 0 pointer to object's logic structure
// 1 number of game-cycles to pause
// NB. Pause-value of 0 causes script to continue, 1 causes a 1-cycle
// quit, 2 gives 2 cycles, etc.
Object_logic *ob_logic = (Object_logic *) params[0];
if (ob_logic->looping == 0) {
// start the pause
ob_logic->looping = 1;
// no. of game cycles
ob_logic->pause = params[1];
}
if (ob_logic->pause) {
// decrement the pause count
ob_logic->pause--;
// drop out of script, but call this again next cycle
return IR_REPEAT;
} else {
ob_logic->looping = 0;
// continue script
return IR_CONT;
}
}
int32 FN_random_pause(int32 *params) { // (26nov96 JEL)
// params: 0 pointer to object's logic structure
// 1 minimum number of game-cycles to pause
// 2 maximum number of game-cycles to pause
Object_logic *ob_logic = (Object_logic *) params[0];
int32 pars[2];
if (ob_logic->looping == 0) {
pars[0] = params[1]; // min
pars[1] = params[2]; // max
FN_random(pars);
// random value between 'min' & 'max' inclusive
pars[1] = RESULT;
}
pars[0] = params[0]; // &logic
return FN_pause(pars);
}
int32 FN_pass_graph(int32 *params) { // Tony28Nov96
// makes an engine local copy of passed graphic_structure and
// mega_structure - run script 4 of an object to request this
// used by FN_turn_to(id) etc
//
// remember, we cannot simply read a compact any longer but instead
// must request it from the object itself
//params 0 pointer to a graphic structure (might not need this?)
memcpy(&engine_graph, (uint8 *) params[0], sizeof(Object_graphic));
// makes no odds
return IR_CONT;
}
int32 FN_pass_mega(int32 *params) { // Tony28Nov96
// makes an engine local copy of passed graphic_structure and
// mega_structure - run script 4 of an object to request this
// used by FN_turn_to(id) etc
//
// remember, we cannot simply read a compact any longer but instead
// must request it from the object itself
// params 0 pointer to a mega structure
memcpy(&engine_mega, (uint8*) params[0], sizeof(Object_mega));
//makes no odds
return IR_CONT;
}
int32 FN_set_value(int32 *params) { // (02jan97 JEL)
// temp. function!
// used for setting far-referenced megaset resource field in mega
// object, from start script
// params: 0 pointer to object's mega structure
// 1 value to set it to
Object_mega *ob_mega = (Object_mega *)params[0];
ob_mega->megaset_res = params[1];
// continue script
return IR_CONT;
}
#define BLACK 0
#define WHITE 1
#define RED 2
#define GREEN 3
#define BLUE 4
uint8 black[4] = { 0, 0, 0, 0 };
uint8 white[4] = { 255, 255, 255, 0 };
uint8 red[4] = { 255, 0, 0, 0 };
uint8 green[4] = { 0, 255, 0, 0 };
uint8 blue[4] = { 0, 0, 255, 0 };
int32 FN_flash(int32 *params) { // (James14feb97)
// flash colour 0 (ie. border) - useful during script development
// eg. FN_flash(BLUE) where a text line is missed; RED when some code
// missing, etc
// params 0: colour to flash
#ifdef _SWORD2_DEBUG
// what colour?
switch (params[0]) {
case WHITE:
BS2_SetPalette(0, 1, white, RDPAL_INSTANT);
break;
case RED:
BS2_SetPalette(0, 1, red, RDPAL_INSTANT);
break;
case GREEN:
BS2_SetPalette(0, 1, green, RDPAL_INSTANT);
break;
case BLUE:
BS2_SetPalette(0, 1, blue, RDPAL_INSTANT);
break;
}
// There used to be a busy-wait loop here, so I don't know how long
// the delay was meant to be. Probably doesn't matter much.
ServiceWindows();
g_system->delay_msecs(250);
BS2_SetPalette(0, 1, black, RDPAL_INSTANT);
#endif
return IR_CONT;
}
int32 FN_colour(int32 *params) { // (James14feb97)
// set border colour - useful during script development
// eg. set to colour during a timer situation, then black when timed
// out
// params 0: colour (see defines above)
#ifdef _SWORD2_DEBUG
// what colour?
switch (params[0]) {
case BLACK:
BS2_SetPalette(0, 1, black, RDPAL_INSTANT);
break;
case WHITE:
BS2_SetPalette(0, 1, white, RDPAL_INSTANT);
break;
case RED:
BS2_SetPalette(0, 1, red, RDPAL_INSTANT);
break;
case GREEN:
BS2_SetPalette(0, 1, green, RDPAL_INSTANT);
break;
case BLUE:
BS2_SetPalette(0, 1, blue, RDPAL_INSTANT);
break;
}
#endif
return IR_CONT;
}
int32 FN_display_msg(int32 *params) { // (Chris 15/5/97)
// Display a message to the user on the screen.
//
// params 0: Text number of message to be displayed.
uint32 local_text = params[0] & 0xffff;
uint32 text_res = params[0] / SIZE;
// Display message for three seconds.
// +2 to skip the encoded text number in the first 2 chars; 3 is
// duration in seconds
DisplayMsg(FetchTextLine(res_man.Res_open(text_res), local_text) + 2, 3);
res_man.Res_close(text_res);
RemoveMsg();
return IR_CONT;
}
int32 FN_reset_globals(int32 *params) { // Tony29May97
// FN_reset_globals is used by the demo - so it can loop back &
// restart itself
int32 size;
uint32 *globals;
int j;
size = res_man.Res_fetch_len(1);
size -= sizeof(_standardHeader);
Zdebug("\nglobals size %d", size / 4);
globals = (uint32*) ((uint8 *) res_man.Res_open(1) + sizeof(_standardHeader));
// blank each global variable
for (j = 0; j < size / 4; j++)
globals[j] = 0;
res_man.Res_close(1);
// all objects but george
res_man.Kill_all_objects(0);
// reopen global variables resource & send address to interpreter - it
// won't be moving
// SetGlobalInterpreterVariables((int32 *) (res_man.Res_open(1) + sizeof(_standardHeader)));
// res_man.Res_close(1);
// FOR THE DEMO - FORCE THE SCROLLING TO BE RESET! (James29may97)
// - this is taken from FN_init_background
// switch on scrolling (2 means first time on screen)
this_screen.scroll_flag = 2;
return IR_CONT;
}
int32 FN_play_credits(int32 *params) {
// FN_play_credits - Plays the credits?
// This function just quits the game if this is the playable demo, ie.
// credits are NOT played in the demo any more!
/* uint32 rv; // for Credits() return value
if (!DEMO) {
_drvDrawStatus ds;
_drvSoundStatus ss;
_drvKeyStatus ks;
ClearAllFx(); // Must stop all fx
CloseFx(-2); // including leadins
CloseFx(-1); // including leadouts
StopMusic(); // Stop any streaming music
#if 0
// FIXME: I don't think this is needed
// And wait for it to die
for (int i = 0; i<16; i++) {
g_sword2->_sound->UpdateCompSampleStreaming();
}
#endif
GetDrawStatus(&ds);
GetSoundStatus(&ss);
GetKeyStatus(&ks);
rv = Credits(&ds, &ss, res_man.GetCdPath(), GetRenderType()==3, &gotTheFocus, &ks);
// (James14aug97) Because game crashing when trying to close
// down after credits
SetDrawStatus(&ds);
SetSoundStatus(&ss);
}
*/
// FIXME: This probably isn't the correct way of shutting down ScummVM
if (g_sword2->_gameId == GID_SWORD2_DEMO) {
Close_game(); // close engine systems down
CloseAppWindow();
exit(0); // quit the game
}
return IR_CONT;
}
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