tbftss/src/galaxy/mission.c

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/*
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Copyright (C) 2015-2016 Parallel Realities
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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.
*/
#include "mission.h"
static void loadObjectives(cJSON *node);
static void loadPlayer(cJSON *node);
static void loadFighters(cJSON *node);
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static void loadCapitalShips(cJSON *node);
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static void loadEntities(cJSON *node);
static void loadItems(cJSON *node);
static void loadLocations(cJSON *node);
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static unsigned long hashcode(const char *str);
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static char **toTypeArray(char *types, int *numTypes);
static void loadEpicData(cJSON *node);
static char *getAutoBackground(char *filename);
static char *getAutoPlanet(char *filename);
static char *getAutoMusic(char *filename);
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Mission *loadMissionMeta(char *filename)
{
int i;
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Mission *mission;
Challenge *challenge;
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cJSON *root, *node;
char *text;
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Loading %s", filename);
text = readFile(filename);
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root = cJSON_Parse(text);
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mission = malloc(sizeof(Mission));
memset(mission, 0, sizeof(Mission));
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STRNCPY(mission->name, cJSON_GetObjectItem(root, "name")->valuestring, MAX_NAME_LENGTH);
STRNCPY(mission->description, _(cJSON_GetObjectItem(root, "description")->valuestring), MAX_DESCRIPTION_LENGTH);
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STRNCPY(mission->filename, filename, MAX_DESCRIPTION_LENGTH);
mission->requires = getJSONValue(root, "requires", 0);
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if (cJSON_GetObjectItem(root, "epic"))
{
mission->epic = 1;
}
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node = cJSON_GetObjectItem(root, "player");
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if (node)
{
STRNCPY(mission->pilot, cJSON_GetObjectItem(node, "pilot")->valuestring, MAX_NAME_LENGTH);
STRNCPY(mission->squadron, cJSON_GetObjectItem(node, "squadron")->valuestring, MAX_NAME_LENGTH);
STRNCPY(mission->craft, cJSON_GetObjectItem(node, "type")->valuestring, MAX_NAME_LENGTH);
}
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node = cJSON_GetObjectItem(root, "challenge");
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if (node)
{
mission->challengeData.isChallenge = 1;
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/* limits */
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mission->challengeData.timeLimit = getJSONValue(node, "timeLimit", 0) * FPS;
mission->challengeData.killLimit = getJSONValue(node, "killLimit", 0);
mission->challengeData.escapeLimit = getJSONValue(node, "escapeLimit", 0);
mission->challengeData.waypointLimit = getJSONValue(node, "waypointLimit", 0);
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mission->challengeData.itemLimit = getJSONValue(node, "itemLimit", 0);
/* restrictions */
mission->challengeData.noMissiles = getJSONValue(node, "noMissiles", 0);
mission->challengeData.noECM = getJSONValue(node, "noECM", 0);
mission->challengeData.noBoost = getJSONValue(node, "noBoost", 0);
mission->challengeData.noGuns = getJSONValue(node, "noGuns", 0);
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node = cJSON_GetObjectItem(node, "challenges");
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if (node)
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{
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node = node->child;
i = 0;
while (node && i < MAX_CHALLENGES)
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{
challenge = malloc(sizeof(Challenge));
memset(challenge, 0, sizeof(Challenge));
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challenge->type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
challenge->value = cJSON_GetObjectItem(node, "value")->valueint;
mission->challengeData.challenges[i] = challenge;
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node = node->next;
i++;
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}
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}
}
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cJSON_Delete(root);
free(text);
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return mission;
}
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void loadMission(char *filename)
{
cJSON *root;
char *text, music[MAX_DESCRIPTION_LENGTH], *background, *planet;
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float planetScale;
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startSectionTransition();
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stopMusic();
text = readFile(filename);
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root = cJSON_Parse(text);
srand(hashcode(filename));
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loadObjectives(cJSON_GetObjectItem(root, "objectives"));
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loadPlayer(cJSON_GetObjectItem(root, "player"));
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loadFighters(cJSON_GetObjectItem(root, "fighters"));
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loadCapitalShips(cJSON_GetObjectItem(root, "capitalShips"));
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loadEntities(cJSON_GetObjectItem(root, "entities"));
loadItems(cJSON_GetObjectItem(root, "items"));
loadLocations(cJSON_GetObjectItem(root, "locations"));
if (cJSON_GetObjectItem(root, "epic"))
{
loadEpicData(cJSON_GetObjectItem(root, "epic"));
}
battle.manualComplete = getJSONValue(root, "manualComplete", 0);
battle.unwinnable = getJSONValue(root, "unwinnable", 0);
initScript(cJSON_GetObjectItem(root, "script"));
/* music, planet, and background loading must come last, so AUTO works properly */
STRNCPY(music, cJSON_GetObjectItem(root, "music")->valuestring, MAX_DESCRIPTION_LENGTH);
if (strcmp(music, "AUTO") == 0)
{
STRNCPY(music, getAutoMusic(filename), MAX_DESCRIPTION_LENGTH);
}
background = cJSON_GetObjectItem(root, "background")->valuestring;
if (strcmp(background, "AUTO") == 0)
{
background = getAutoBackground(filename);
}
battle.background = getTexture(background);
planet = cJSON_GetObjectItem(root, "planet")->valuestring;
if (strcmp(planet, "AUTO") == 0)
{
planet = getAutoPlanet(filename);
}
planetScale = 75 + (rand() % 125);
planetScale *= 0.01;
battle.planetTexture = getTexture(planet);
battle.planet.x = (SCREEN_WIDTH / 2) - (rand() % SCREEN_WIDTH) + (rand() % SCREEN_WIDTH);
battle.planet.y = (SCREEN_HEIGHT / 2) - (rand() % SCREEN_HEIGHT) + (rand() % SCREEN_HEIGHT);
SDL_QueryTexture(battle.planetTexture, NULL, NULL, &battle.planetWidth, &battle.planetHeight);
battle.planetWidth *= planetScale;
battle.planetHeight *= planetScale;
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srand(time(NULL));
free(text);
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endSectionTransition();
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/* only increment num missions / challenges started if there are some (Free Flight excluded, for example) */
if (battle.objectiveHead.next)
{
game.stats[STAT_MISSIONS_STARTED]++;
}
else if (game.currentMission->challengeData.isChallenge)
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{
game.stats[STAT_CHALLENGES_STARTED]++;
}
else
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{
battle.status = MS_IN_PROGRESS;
}
activateNextWaypoint();
countNumEnemies();
initPlayer();
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initMissionInfo();
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playMusic(music);
}
static char *getAutoBackground(char *filename)
{
int hash;
if (!game.currentMission->challengeData.isChallenge)
{
hash = hashcode(game.selectedStarSystem);
}
else
{
hash = hashcode(filename);
}
return getBackgroundTextureName(hash);
}
static char *getAutoPlanet(char *filename)
{
int hash;
if (!game.currentMission->challengeData.isChallenge)
{
hash = hashcode(game.selectedStarSystem);
}
else
{
hash = hashcode(filename);
}
return getPlanetTextureName(hash);
}
static char *getAutoMusic(char *filename)
{
int hash;
if (!game.currentMission->challengeData.isChallenge)
{
hash = hashcode(game.selectedStarSystem);
}
else
{
hash = hashcode(filename);
}
return getMusicFilename(hash);
}
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void completeMission(void)
{
if (battle.status == MS_IN_PROGRESS)
{
battle.status = MS_COMPLETE;
battle.missionFinishedTimer = FPS;
selectWidget("continue", "battleWon");
game.stats[STAT_MISSIONS_COMPLETED]++;
completeConditions();
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retreatEnemies();
player->flags |= EF_IMMORTAL;
}
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}
void failMission(void)
{
if (battle.status == MS_IN_PROGRESS)
{
battle.status = MS_FAILED;
battle.missionFinishedTimer = FPS;
selectWidget("retry", "battleLost");
failIncompleteObjectives();
player->flags |= EF_IMMORTAL;
}
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}
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static void loadObjectives(cJSON *node)
{
Objective *o;
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if (node)
{
node = node->child;
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while (node)
{
o = malloc(sizeof(Objective));
memset(o, 0, sizeof(Objective));
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battle.objectiveTail->next = o;
battle.objectiveTail = o;
STRNCPY(o->description, _(cJSON_GetObjectItem(node, "description")->valuestring), MAX_DESCRIPTION_LENGTH);
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STRNCPY(o->targetName, cJSON_GetObjectItem(node, "targetName")->valuestring, MAX_NAME_LENGTH);
o->targetValue = cJSON_GetObjectItem(node, "targetValue")->valueint;
o->targetType = lookup(cJSON_GetObjectItem(node, "targetType")->valuestring);
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o->active = getJSONValue(node, "active", 1);
o->isCondition = getJSONValue(node, "isCondition", 0);
o->isEliminateAll = getJSONValue(node, "isEliminateAll", 0);
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if (o->isEliminateAll)
{
o->targetValue = 1;
}
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node = node->next;
}
}
}
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static void loadPlayer(cJSON *node)
{
char *type;
int side;
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type = cJSON_GetObjectItem(node, "type")->valuestring;
side = lookup(cJSON_GetObjectItem(node, "side")->valuestring);
player = spawnFighter(type, 0, 0, side);
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player->x = BATTLE_AREA_WIDTH / 2;
player->y = BATTLE_AREA_HEIGHT / 2;
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if (cJSON_GetObjectItem(node, "x"))
{
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player->x = (cJSON_GetObjectItem(node, "x")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_WIDTH;
player->y = (cJSON_GetObjectItem(node, "y")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_HEIGHT;
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}
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if (strcmp(type, "Tug") == 0)
{
battle.stats[STAT_TUG]++;
}
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if (strcmp(type, "Shuttle") == 0)
{
battle.stats[STAT_SHUTTLE]++;
}
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}
static void loadFighters(cJSON *node)
{
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Entity *e;
char **types, *name, *groupName, *type;
int side, scatter, number, active;
int i, numTypes, addFlags, addAIFlags;
long flags, aiFlags;
float x, y;
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if (node)
{
node = node->child;
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while (node)
{
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name = NULL;
groupName = NULL;
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flags = -1;
aiFlags = -1;
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types = toTypeArray(cJSON_GetObjectItem(node, "types")->valuestring, &numTypes);
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side = lookup(cJSON_GetObjectItem(node, "side")->valuestring);
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x = (cJSON_GetObjectItem(node, "x")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_WIDTH;
y = (cJSON_GetObjectItem(node, "y")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_HEIGHT;
name = getJSONValueStr(node, "name", NULL);
groupName = getJSONValueStr(node, "groupName", NULL);
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number = getJSONValue(node, "number", 1);
scatter = getJSONValue(node, "scatter", 1);
active = getJSONValue(node, "active", 1);
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if (cJSON_GetObjectItem(node, "flags"))
{
flags = flagsToLong(cJSON_GetObjectItem(node, "flags")->valuestring, &addFlags);
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}
if (cJSON_GetObjectItem(node, "aiFlags"))
{
aiFlags = flagsToLong(cJSON_GetObjectItem(node, "aiFlags")->valuestring, &addAIFlags);
}
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for (i = 0 ; i < number ; i++)
{
type = types[rand() % numTypes];
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e = spawnFighter(type, x, y, side);
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if (scatter > 1)
{
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e->x += (rand() % scatter) - (rand() % scatter);
e->y += (rand() % scatter) - (rand() % scatter);
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}
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e->active = active;
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if (flags != -1)
{
if (addFlags)
{
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e->flags |= flags;
}
else
{
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e->flags = flags;
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "Flags for '%s' (%s) replaced", e->name, e->defName);
}
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}
if (aiFlags != -1)
{
if (addAIFlags)
{
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e->aiFlags |= aiFlags;
}
else
{
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e->aiFlags = aiFlags;
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "AI Flags for '%s' (%s) replaced", e->name, e->defName);
}
}
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if (name)
{
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STRNCPY(e->name, name, MAX_NAME_LENGTH);
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}
if (groupName)
{
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STRNCPY(e->groupName, groupName, MAX_NAME_LENGTH);
}
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}
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node = node->next;
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for (i = 0 ; i < numTypes ; i++)
{
free(types[i]);
}
free(types);
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}
}
}
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static void loadCapitalShips(cJSON *node)
{
Entity *e;
char **types, *name, *groupName, *type;
int side, scatter, number, active;
int i, numTypes, addFlags;
long flags;
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float x, y;
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if (node)
{
node = node->child;
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while (node)
{
name = NULL;
groupName = NULL;
flags = -1;
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types = toTypeArray(cJSON_GetObjectItem(node, "types")->valuestring, &numTypes);
side = lookup(cJSON_GetObjectItem(node, "side")->valuestring);
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x = (cJSON_GetObjectItem(node, "x")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_WIDTH;
y = (cJSON_GetObjectItem(node, "y")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_HEIGHT;
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name = getJSONValueStr(node, "name", NULL);
groupName = getJSONValueStr(node, "groupName", NULL);
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number = getJSONValue(node, "number", 1);
scatter = getJSONValue(node, "scatter", 1);
active = getJSONValue(node, "active", 1);
if (cJSON_GetObjectItem(node, "flags"))
{
flags = flagsToLong(cJSON_GetObjectItem(node, "flags")->valuestring, &addFlags);
}
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for (i = 0 ; i < number ; i++)
{
type = types[rand() % numTypes];
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e = spawnCapitalShip(type, x, y, side);
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if (scatter > 1)
{
e->x += (rand() % scatter) - (rand() % scatter);
e->y += (rand() % scatter) - (rand() % scatter);
}
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e->active = active;
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if (name)
{
STRNCPY(e->name, name, MAX_NAME_LENGTH);
}
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if (groupName)
{
STRNCPY(e->groupName, groupName, MAX_NAME_LENGTH);
}
if (flags != -1)
{
if (addFlags)
{
e->flags |= flags;
}
else
{
e->flags = flags;
SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "Flags for '%s' (%s) replaced", e->name, e->defName);
}
}
updateCapitalShipComponentProperties(e);
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}
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node = node->next;
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for (i = 0 ; i < numTypes ; i++)
{
free(types[i]);
}
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free(types);
}
}
}
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static void loadEntities(cJSON *node)
{
Entity *e;
char *name, *groupName;
int i, type, scatter, number, active;
float x, y;
if (node)
{
node = node->child;
while (node)
{
e = NULL;
type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
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x = (cJSON_GetObjectItem(node, "x")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_WIDTH;
y = (cJSON_GetObjectItem(node, "y")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_HEIGHT;
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name = NULL;
groupName = NULL;
name = getJSONValueStr(node, "name", NULL);
groupName = getJSONValueStr(node, "groupName", NULL);
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number = getJSONValue(node, "number", 1);
active = getJSONValue(node, "active", 1);
scatter = getJSONValue(node, "scatter", 1);
for (i = 0 ; i < number ; i++)
{
switch (type)
{
case ET_WAYPOINT:
e = spawnWaypoint();
break;
case ET_EXTRACTION_POINT:
e = spawnExtractionPoint();
break;
default:
printf("Error: Unhandled entity type: %s\n", cJSON_GetObjectItem(node, "type")->valuestring);
exit(1);
break;
}
if (name)
{
STRNCPY(e->name, name, MAX_NAME_LENGTH);
}
if (groupName)
{
STRNCPY(e->groupName, groupName, MAX_NAME_LENGTH);
}
e->x = x;
e->y = y;
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if (scatter > 1)
{
e->x += (rand() % scatter) - (rand() % scatter);
e->y += (rand() % scatter) - (rand() % scatter);
}
e->active = active;
SDL_QueryTexture(e->texture, NULL, NULL, &e->w, &e->h);
}
node = node->next;
}
}
}
static void loadItems(cJSON *node)
{
Entity *e;
char *name, *groupName, *type;
int i, scatter, number, active, addFlags;
long flags;
float x, y;
flags = -1;
scatter = 1;
if (node)
{
node = node->child;
while (node)
{
type = cJSON_GetObjectItem(node, "type")->valuestring;
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x = (cJSON_GetObjectItem(node, "x")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_WIDTH;
y = (cJSON_GetObjectItem(node, "y")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_HEIGHT;
name = NULL;
groupName = NULL;
name = getJSONValueStr(node, "name", NULL);
groupName = getJSONValueStr(node, "groupName", NULL);
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number = getJSONValue(node, "number", 1);
scatter = getJSONValue(node, "scatter", 1);
active = getJSONValue(node, "active", 1);
if (cJSON_GetObjectItem(node, "flags"))
{
flags = flagsToLong(cJSON_GetObjectItem(node, "flags")->valuestring, &addFlags);
}
for (i = 0 ; i < number ; i++)
{
e = spawnItem(type);
if (name)
{
STRNCPY(e->name, name, MAX_NAME_LENGTH);
}
if (groupName)
{
STRNCPY(e->groupName, groupName, MAX_NAME_LENGTH);
}
if (flags != -1)
{
if (addFlags)
{
e->flags |= flags;
}
else
{
e->flags = flags;
SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "Flags for '%s' (%s) replaced", e->name, e->defName);
}
}
e->x = x;
e->y = y;
e->active = active;
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if (scatter > 1)
{
e->x += (rand() % scatter) - (rand() % scatter);
e->y += (rand() % scatter) - (rand() % scatter);
}
SDL_QueryTexture(e->texture, NULL, NULL, &e->w, &e->h);
}
node = node->next;
}
}
}
static void loadLocations(cJSON *node)
{
int active;
Location *l;
if (node)
{
node = node->child;
while (node)
{
l = malloc(sizeof(Location));
memset(l, 0, sizeof(Location));
battle.locationTail->next = l;
battle.locationTail = l;
STRNCPY(l->name, cJSON_GetObjectItem(node, "name")->valuestring, MAX_NAME_LENGTH);
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l->x = (cJSON_GetObjectItem(node, "x")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_WIDTH;
l->y = (cJSON_GetObjectItem(node, "y")->valuedouble / BATTLE_AREA_CELLS) * BATTLE_AREA_HEIGHT;
l->size = cJSON_GetObjectItem(node, "size")->valueint;
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active = getJSONValue(node, "active", 1);
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l->x += (SCREEN_WIDTH / 2);
l->y += (SCREEN_HEIGHT / 2);
l->active = active;
node = node->next;
}
}
}
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static char **toTypeArray(char *types, int *numTypes)
{
int i;
char **typeArray, *type;
*numTypes = 1;
for (i = 0 ; i < strlen(types) ; i++)
{
if (types[i] == ';')
{
*numTypes = *numTypes + 1;
}
}
typeArray = malloc(*numTypes * sizeof(char*));
i = 0;
type = strtok(types, ";");
while (type)
{
typeArray[i] = malloc(strlen(type) + 1);
strcpy(typeArray[i], type);
type = strtok(NULL, ";");
i++;
}
return typeArray;
}
static void loadEpicData(cJSON *node)
{
Entity *e;
int numFighters[SIDE_MAX];
memset(numFighters, 0, sizeof(int) * SIDE_MAX);
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battle.isEpic = 1;
battle.epicFighterLimit = cJSON_GetObjectItem(node, "fighterLimit")->valueint;
for (e = battle.entityHead.next ; e != NULL ; e = e->next)
{
if (e->active && e->type == ET_FIGHTER && numFighters[e->side]++ >= battle.epicFighterLimit)
{
e->active = 0;
}
}
}
Mission *getMission(char *filename)
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{
StarSystem *starSystem;
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Mission *mission;
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/* First, search the star systems */
for (starSystem = game.starSystemHead.next ; starSystem != NULL ; starSystem = starSystem->next)
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{
for (mission = starSystem->missionHead.next ; mission != NULL ; mission = mission->next)
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{
if (strcmp(mission->filename, filename) == 0)
{
return mission;
}
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}
}
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/* now search the challenges */
for (mission = game.challengeMissionHead.next ; mission != NULL ; mission = mission->next)
{
if (strcmp(mission->filename, filename) == 0)
{
return mission;
}
}
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "No such mission '%s'", filename);
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return NULL;
}
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void updateAllMissions(void)
{
updateStarSystemMissions();
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updateChallengeMissions();
}
int isMissionAvailable(Mission *mission, Mission *prev)
{
return prev->completed && mission->requires <= game.completedMissions;
}
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static unsigned long hashcode(const char *str)
{
unsigned long hash = 5381;
int c;
c = *str;
while (c)
{
hash = ((hash << 5) + hash) + c;
c = *str++;
}
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return abs(hash);
}