game: Add fields used in misc_flare

Based on [ED_LoadColor](https://github.com/id-Software/quake2-rerelease-dll).

src/game/g_spawn.c

@@ -349,6 +349,54 @@ ED_NewString(const char *string)
 	return newb;
 }
 
+static unsigned
+ED_ParseColorField(const char *value)
+{
+	/* space means rgba as values */
+	if (strchr(value, ' '))
+	{
+		float v[4] = { 0, 0, 0, 1.0f };
+		qboolean is_float = true;
+		char color_buffer[16], *tmp;
+		int i;
+
+		strncpy(color_buffer, value, sizeof(color_buffer) - 1);
+		tmp = color_buffer;
+
+		for (i = 0; i < 4; i++)
+		{
+			v[i] = (float)strtod(COM_Parse(&tmp), (char **)NULL);
+
+			if (v[i] > 1.0f)
+			{
+				is_float = false;
+			}
+
+			if (!tmp)
+			{
+				break;
+			}
+		}
+
+		/* convert to bytes */
+		if (is_float)
+		{
+			for (i = 0; i < 4; i++)
+			{
+				v[i] *= 255.f;
+			}
+		}
+
+		return ((byte)v[3]) |
+				(((byte)v[2]) << 8) |
+				(((byte)v[1]) << 16) |
+				(((byte)v[0]) << 24);
+	}
+
+	/* integral */
+	return atoi(value);
+}
+
 /*
  * Takes a key/value pair and sets
  * the binary values in an edict
@@ -403,6 +451,9 @@ ED_ParseField(const char *key, const char *value, edict_t *ent)
 					((float *)(b + f->ofs))[1] = v;
 					((float *)(b + f->ofs))[2] = 0;
 					break;
+				case F_RGBA:
+					*(unsigned *)(b + f->ofs) = ED_ParseColorField(value);
+					break;
 				case F_IGNORE:
 					break;
 				default:

src/game/header/local.h

@@ -410,6 +410,11 @@ typedef struct
 	float maxyaw;
 	float minpitch;
 	float maxpitch;
+
+	float radius;
+	float fade_start_dist;
+	float fade_end_dist;
+	char *image;
 } spawn_temp_t;
 
 typedef struct
@@ -712,7 +717,8 @@ typedef enum
 	F_CLIENT,           /* index on disk, pointer in memory */
 	F_FUNCTION,
 	F_MMOVE,
-	F_IGNORE
+	F_IGNORE,
+	F_RGBA,
 } fieldtype_t;
 
 typedef struct

src/game/savegame/savegame.c

@@ -417,6 +417,7 @@ WriteField1(FILE *f, field_t *field, byte *base)
 		case F_ANGLEHACK:
 		case F_VECTOR:
 		case F_IGNORE:
+		case F_RGBA:
 			break;
 
 		case F_LSTRING:
@@ -614,6 +615,7 @@ ReadField(FILE *f, field_t *field, byte *base)
 		case F_ANGLEHACK:
 		case F_VECTOR:
 		case F_IGNORE:
+		case F_RGBA:
 			break;
 
 		case F_LSTRING:

src/game/savegame/tables/fields.h

@@ -58,6 +58,11 @@
 {"origin", FOFS(s.origin), F_VECTOR},
 {"angles", FOFS(s.angles), F_VECTOR},
 {"angle", FOFS(s.angles), F_ANGLEHACK},
+{"rgba", FOFS(s.skinnum), F_RGBA},
+{"radius", STOFS(radius), F_FLOAT, FFL_SPAWNTEMP},
+{"fade_start_dist", STOFS(fade_start_dist), F_FLOAT, FFL_SPAWNTEMP},
+{"fade_end_dist", STOFS(fade_end_dist), F_FLOAT, FFL_SPAWNTEMP},
+{"image", STOFS(image), F_LSTRING, FFL_SPAWNTEMP},
 {"goalentity", FOFS(goalentity), F_EDICT, FFL_NOSPAWN},
 {"movetarget", FOFS(movetarget), F_EDICT, FFL_NOSPAWN},
 {"enemy", FOFS(enemy), F_EDICT, FFL_NOSPAWN},