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fs2open.github.com/code/iff_defs/iff_defs.cpp
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Goober5000 7516d29d62 hooray for more work on the iff code 
--Goober5000
2005-09-30 03:40:40 +00:00

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/*
* Created by Ian "Goober5000" Warfield for the Freespace2 Source Code Project.
* You may not sell or otherwise commercially exploit the source or things you
* create based on the source.
*
*/
/*
* $Logfile: /Freespace2/code/iff_defs/iff_defs.cpp $
* $Revision: 1.3 $
* $Date: 2005-09-30 03:40:40 $
* $Author: Goober5000 $
*
* $Log: not supported by cvs2svn $
* Revision 1.2 2005/09/29 04:26:08 Goober5000
* parse fixage
* --Goober5000
*
* Revision 1.1 2005/09/27 05:25:18 Goober5000
* initial commit of basic IFF code
* --Goober5000
*
*/
#include "iff_defs/iff_defs.h"
#include "parse/parselo.h"
#include "cfile/cfile.h"
#include "hud/hud.h"
#include "mission/missionparse.h"
int Num_iffs;
iff_info Iff_info[MAX_IFFS];
int Iff_traitor;
color Iff_colors[MAX_IFF_COLORS][2];
//=============================================================================
// This is the default table
// Please note that the {\n\}s should be removed from the end of each line and
// the {\"}s should be replaced with {"}s if you intend to use this to format
// your own iff_defs.tbl.
char *default_iff_table = "\
\n\
#IFFs \n\
\n\
;; Every iff_defs.tbl must contain a Traitor entry. Traitors attack one \n\
;; another (required by the dogfighting code) but it is up to you to \n\
;; decide who attacks the traitor or whom else the traitor attacks. \n\
$Traitor IFF: Traitor \n\
\n\
;------------------------ \n\
; Friendly \n\
;------------------------ \n\
$IFF Name: Friendly \n\
$Color: ( 0, 255, 0 ) \n\
$Attacks: ( \"Hostile\" \"Neutral\" \"Traitor\" ) \n\
$Default Ship Flags: ( \"cargo-known\" ) \n\
\n\
;------------------------ \n\
; Hostile \n\
;------------------------ \n\
$IFF Name: Hostile \n\
$Color: ( 255, 0, 0 ) \n\
$Attacks: ( \"Friendly\" \"Neutral\" \"Traitor\" ) \n\
+Sees Friendly As: ( 255, 0, 0 ) \n\
+Sees Hostile As: ( 0, 255, 0 ) \n\
\n\
;------------------------ \n\
; Neutral \n\
;------------------------ \n\
$IFF Name: Neutral \n\
$Color: ( 255, 0, 0 ) \n\
$Attacks: ( \"Friendly\" \"Traitor\" ) \n\
+Sees Friendly As: ( 255, 0, 0 ) \n\
+Sees Hostile As: ( 0, 255, 0 ) \n\
+Sees Neutral As: ( 0, 255, 0 ) \n\
\n\
;------------------------ \n\
; Unknown \n\
;------------------------ \n\
$IFF Name: Unknown \n\
$Color: ( 255, 0, 255 ) \n\
$Attacks: ( \"Hostile\" ) \n\
+Sees Neutral As: ( 0, 255, 0 ) \n\
+Sees Traitor As: ( 0, 255, 0 ) \n\
$Flags: ( \"exempt from all teams at war\" ) \n\
\n\
;------------------------ \n\
; Traitor \n\
;------------------------ \n\
$IFF Name: Traitor \n\
$Color: ( 255, 0, 0 ) \n\
$Attacks: ( \"Friendly\" \"Hostile\" \"Neutral\" \"Traitor\" ) \n\
+Sees Friendly As: ( 255, 0, 0 ) \n\
\n\
#End \n\
";
//=============================================================================
// borrowed from ship.cpp, ship_iff_init_colors
int iff_get_alpha_value(bool alpha_on)
{
int iff_bright_delta = 4;
if (!alpha_on)
return (HUD_COLOR_ALPHA_MAX - iff_bright_delta) * 16;
else
return HUD_COLOR_ALPHA_MAX * 16;
}
int iff_init_color(int r, int g, int b)
{
typedef struct temp_color_t {
int r;
int g;
int b;
} temp_color_t;
int i, idx;
temp_color_t *c;
static int num_iff_colors = 0;
static temp_color_t temp_colors[MAX_IFF_COLORS];
// make sure we're under the limit
if (num_iff_colors >= MAX_IFF_COLORS)
{
Warning(LOCATION, "Too many iff colors! Ignoring the rest...\n");
return 0;
}
// find out if this color is in use
for (i = 0; i < num_iff_colors; i++)
{
c = &temp_colors[i];
if (c->r == r && c->g == g && c->b == b)
return i;
}
// not in use, so add a new slot
idx = num_iff_colors;
num_iff_colors++;
// save the values
c = &temp_colors[idx];
c->r = r;
c->g = g;
c->b = b;
// init it
gr_init_alphacolor(&Iff_colors[idx][0], r, g, b, iff_get_alpha_value(false));
gr_init_alphacolor(&Iff_colors[idx][1], r, g, b, iff_get_alpha_value(true));
// return the new slot
return idx;
}
void iff_init()
{
char traitor_name[NAME_LENGTH];
char attack_names[MAX_IFFS][MAX_IFFS][NAME_LENGTH];
struct {
char iff_name[NAME_LENGTH];
int color_index;
} observed_color_table[MAX_IFFS][MAX_IFFS];
int num_attack_names[MAX_IFFS];
int num_observed_colors[MAX_IFFS];
// Goober5000 - condensed check for table file
CFILE *idt = cfopen("iff_defs.tbl", "rb");
int table_exists = (idt != NULL);
if (table_exists)
cfclose(idt);
// Goober5000 - if table doesn't exist, use the default table (see above)
if (table_exists)
read_file_text("iff_defs.tbl");
else
read_file_text_from_array(default_iff_table);
reset_parse();
// before parsing, set up the predefined colors
// NOTE: THESE MUST OCCUR IN THE ORDER DEFINED IN IFF_DEFS.H!!
iff_init_color(0xff, 0xff, 0xff); // IFF_COLOR_SELECTION
iff_init_color(0x7f, 0x7f, 0x7f); // IFF_COLOR_MESSAGE
iff_init_color(0xff, 0xff, 0x00); // IFF_COLOR_TAGGED
// parse the table --------------------------------------------------------
required_string("#IFFs");
// get the traitor
required_string("$Traitor IFF:");
stuff_string(traitor_name, F_NAME, NULL, NAME_LENGTH);
// begin reading data
Num_iffs = 0;
while (required_string_either("#End","$IFF Name:"))
{
iff_info *iff;
int rgb[3];
int cur_iff;
// make sure we're under the limit
if (Num_iffs >= MAX_IFFS)
{
Warning(LOCATION, "Too many iffs in iffs_defs.tbl! Max is %d.\n", MAX_IFFS);
skip_to_start_of_string("#End", NULL);
break;
}
// add new IFF
iff = &Iff_info[Num_iffs];
cur_iff = Num_iffs;
Num_iffs++;
// get required IFF info ----------------------------------------------
// get the iff name
required_string("$IFF Name:");
stuff_string(iff->iff_name, F_NAME, NULL, NAME_LENGTH);
// get the iff color
if (check_for_string("$Colour:"))
required_string("$Colour:");
else
required_string("$Color:");
stuff_int_list(rgb, 3, RAW_INTEGER_TYPE);
iff->color_index = iff_init_color(rgb[0], rgb[1], rgb[2]);
// get relationships between IFFs -------------------------------------
// get the list of iffs attacked
if (optional_string("$Attacks:"))
num_attack_names[cur_iff] = stuff_string_list(attack_names[cur_iff], MAX_IFFS);
else
num_attack_names[cur_iff] = 0;
// get the list of observed colors
num_observed_colors[cur_iff] = 0;
while (optional_string("+Sees"))
{
// get iff observed
stuff_string_until(observed_color_table[cur_iff][num_observed_colors[cur_iff]].iff_name, "As:", NAME_LENGTH);
required_string("As:");
// get color observed
stuff_int_list(rgb, 3, RAW_INTEGER_TYPE);
observed_color_table[cur_iff][num_observed_colors[cur_iff]].color_index = iff_init_color(rgb[0], rgb[1], rgb[2]);
// increment
num_observed_colors[cur_iff]++;
}
// get flags ----------------------------------------------------------
// get iff flags
iff->flags = 0;
if (optional_string("$Flags:"))
{
int i;
char flag_strings[MAX_IFF_FLAGS][NAME_LENGTH];
int num_strings = stuff_string_list(flag_strings, MAX_IFF_FLAGS);
for (i = 0; i < num_strings; i++)
{
if (!stricmp(NOX("exempt from all teams at war"), flag_strings[i]))
iff->flags |= IFFF_EXEMPT_FROM_ALL_TEAMS_AT_WAR;
else
Warning(LOCATION, "Bogus string in iff flags: %s\n", flag_strings[i]);
}
}
// get default ship flags
iff->default_ship_flags = 0;
if (optional_string("$Default Ship Flags:"))
{
int i, j;
char flag_strings[MAX_PARSE_OBJECT_FLAGS][NAME_LENGTH];
int num_strings = stuff_string_list(flag_strings, MAX_PARSE_OBJECT_FLAGS);
for (i = 0; i < num_strings; i++)
{
for (j = 0; j < MAX_PARSE_OBJECT_FLAGS; j++)
{
if (!stricmp(flag_strings[i], Parse_object_flags[j]))
{
iff->default_ship_flags |= (1 << j);
break;
}
}
}
if (j == MAX_PARSE_OBJECT_FLAGS)
Warning(LOCATION, "Bogus string in iff default ship flags: %s\n", flag_strings[i]);
}
}
required_string("#End");
// now resolve the relationships ------------------------------------------
}
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