441 lines
9.3 KiB
C
441 lines
9.3 KiB
C
/*
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Copyright (C) 2015 Parallel Realities
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "mission.h"
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static void loadObjectives(cJSON *node);
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static void loadTriggers(cJSON *node);
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static void loadPlayer(cJSON *node);
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static void loadFighters(cJSON *node);
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static void loadFighterGroups(cJSON *node);
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static void loadEntities(cJSON *node);
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static void loadEntityGroups(cJSON *node);
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static unsigned long hashcode(const char *str);
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static char **toFighterTypeArray(char *types, int *numTypes);
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void loadMission(char *filename)
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{
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cJSON *root;
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char *text, music[MAX_NAME_LENGTH];
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startSectionTransition();
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stopMusic();
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text = readFile(filename);
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srand(hashcode(filename));
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root = cJSON_Parse(text);
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battle.background = getTexture(cJSON_GetObjectItem(root, "background")->valuestring);
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battle.planetTexture = getTexture(cJSON_GetObjectItem(root, "planet")->valuestring);
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battle.planet.x = rand() % SCREEN_WIDTH - rand() % SCREEN_WIDTH;
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battle.planet.y = rand() % SCREEN_HEIGHT - rand() % SCREEN_HEIGHT;
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loadObjectives(cJSON_GetObjectItem(root, "objectives"));
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loadTriggers(cJSON_GetObjectItem(root, "triggers"));
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loadPlayer(cJSON_GetObjectItem(root, "player"));
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loadFighters(cJSON_GetObjectItem(root, "fighters"));
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loadFighterGroups(cJSON_GetObjectItem(root, "fighterGroups"));
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loadEntities(cJSON_GetObjectItem(root, "entities"));
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loadEntityGroups(cJSON_GetObjectItem(root, "entityGroups"));
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STRNCPY(music, cJSON_GetObjectItem(root, "music")->valuestring, MAX_NAME_LENGTH);
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cJSON_Delete(root);
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free(text);
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srand(time(NULL));
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endSectionTransition();
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/* only increment num missions started if there are objectives (Free Flight excluded, for example) */
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if (battle.objectiveHead.next)
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{
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game.stats[STAT_MISSIONS_STARTED]++;
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}
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else
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{
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battle.status = MS_IN_PROGRESS;
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}
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activateNextWaypoint();
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initPlayer();
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playMusic(music);
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}
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void completeMission(void)
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{
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battle.status = MS_COMPLETE;
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battle.missionFinishedTimer = FPS;
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game.stats[STAT_MISSIONS_COMPLETED]++;
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}
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void failMission(void)
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{
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battle.status = MS_FAILED;
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battle.missionFinishedTimer = FPS;
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}
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static void loadObjectives(cJSON *node)
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{
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Objective *o;
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if (node)
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{
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node = node->child;
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while (node)
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{
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o = malloc(sizeof(Objective));
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memset(o, 0, sizeof(Objective));
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battle.objectiveTail->next = o;
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battle.objectiveTail = o;
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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);
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o->targetValue = cJSON_GetObjectItem(node, "targetValue")->valueint;
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o->targetType = lookup(cJSON_GetObjectItem(node, "targetType")->valuestring);
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if (cJSON_GetObjectItem(node, "isCondition"))
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{
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o->isCondition = cJSON_GetObjectItem(node, "isCondition")->valueint;
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}
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if (cJSON_GetObjectItem(node, "isOptional"))
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{
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o->isOptional = cJSON_GetObjectItem(node, "isOptional")->valueint;
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}
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node = node->next;
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}
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}
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}
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static void loadTriggers(cJSON *node)
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{
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Trigger *t;
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if (node)
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{
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node = node->child;
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while (node)
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{
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t = malloc(sizeof(Trigger));
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memset(t, 0, sizeof(Trigger));
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battle.triggerTail->next = t;
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battle.triggerTail = t;
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t->type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
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STRNCPY(t->targetName, cJSON_GetObjectItem(node, "targetName")->valuestring, MAX_NAME_LENGTH);
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t->targetValue = cJSON_GetObjectItem(node, "targetValue")->valueint;
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t->action = lookup(cJSON_GetObjectItem(node, "action")->valuestring);
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node = node->next;
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}
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}
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}
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static void loadPlayer(cJSON *node)
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{
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char *type;
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int side;
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type = cJSON_GetObjectItem(node, "type")->valuestring;
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side = lookup(cJSON_GetObjectItem(node, "side")->valuestring);
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player = spawnFighter(type, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, side);
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player->defaultAction = NULL;
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}
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static void loadFighters(cJSON *node)
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{
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Entity *f;
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char *type;
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int side, x, y;
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if (node)
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{
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node = node->child;
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while (node)
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{
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type = cJSON_GetObjectItem(node, "type")->valuestring;
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side = lookup(cJSON_GetObjectItem(node, "side")->valuestring);
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x = cJSON_GetObjectItem(node, "x")->valueint;
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y = cJSON_GetObjectItem(node, "y")->valueint;
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f = spawnFighter(type, x, y, side);
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STRNCPY(f->name, cJSON_GetObjectItem(node, "name")->valuestring, MAX_NAME_LENGTH);
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if (cJSON_GetObjectItem(node, "flags"))
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{
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f->flags = flagsToLong(cJSON_GetObjectItem(node, "flags")->valuestring);
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}
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node = node->next;
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}
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}
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}
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static void loadFighterGroups(cJSON *node)
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{
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Entity *f;
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char **types, *name, *type;
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int side, x, y, scatter, number;
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int i, numTypes;
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scatter = 1;
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if (node)
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{
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node = node->child;
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while (node)
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{
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types = toFighterTypeArray(cJSON_GetObjectItem(node, "types")->valuestring, &numTypes);
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side = lookup(cJSON_GetObjectItem(node, "side")->valuestring);
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number = cJSON_GetObjectItem(node, "number")->valueint;
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x = cJSON_GetObjectItem(node, "x")->valueint;
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y = cJSON_GetObjectItem(node, "y")->valueint;
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name = cJSON_GetObjectItem(node, "name")->valuestring;
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if (cJSON_GetObjectItem(node, "scatter"))
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{
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scatter = cJSON_GetObjectItem(node, "scatter")->valueint;
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}
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for (i = 0 ; i < number ; i++)
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{
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type = types[rand() % numTypes];
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f = spawnFighter(type, x, y, side);
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f->x += (rand() % scatter) - (rand() % scatter);
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f->y += (rand() % scatter) - (rand() % scatter);
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STRNCPY(f->name, name, MAX_NAME_LENGTH);
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}
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node = node->next;
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free(types);
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}
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}
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}
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static void loadEntities(cJSON *node)
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{
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Entity *e;
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int type;
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if (node)
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{
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node = node->child;
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while (node)
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{
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type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
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switch (type)
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{
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case ET_WAYPOINT:
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e = spawnWaypoint();
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break;
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}
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if (cJSON_GetObjectItem(node, "name"))
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{
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STRNCPY(e->name, cJSON_GetObjectItem(node, "name")->valuestring, MAX_NAME_LENGTH);
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}
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e->x = cJSON_GetObjectItem(node, "x")->valueint;
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e->y = cJSON_GetObjectItem(node, "y")->valueint;
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if (cJSON_GetObjectItem(node, "flags"))
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{
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e->flags = flagsToLong(cJSON_GetObjectItem(node, "flags")->valuestring);
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}
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node = node->next;
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}
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}
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}
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static void loadEntityGroups(cJSON *node)
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{
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Entity *e;
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char *name;
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int i, type, x, y, scatter, number;
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scatter = 1;
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if (node)
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{
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node = node->child;
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while (node)
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{
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type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
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number = cJSON_GetObjectItem(node, "number")->valueint;
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x = cJSON_GetObjectItem(node, "x")->valueint;
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y = cJSON_GetObjectItem(node, "y")->valueint;
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if (cJSON_GetObjectItem(node, "name"))
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{
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name = cJSON_GetObjectItem(node, "name")->valuestring;
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}
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if (cJSON_GetObjectItem(node, "scatter"))
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{
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scatter = cJSON_GetObjectItem(node, "scatter")->valueint;
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}
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for (i = 0 ; i < number ; i++)
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{
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switch (type)
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{
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case ET_WAYPOINT:
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e = spawnWaypoint();
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break;
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}
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if (name)
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{
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STRNCPY(e->name, name, MAX_NAME_LENGTH);
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}
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e->id = battle.entId++;
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e->x = x;
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e->y = y;
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e->x += (rand() % scatter) - (rand() % scatter);
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e->y += (rand() % scatter) - (rand() % scatter);
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}
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node = node->next;
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}
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}
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}
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static char **toFighterTypeArray(char *types, int *numTypes)
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{
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int i;
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char **typeArray, *type;
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*numTypes = 1;
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for (i = 0 ; i < strlen(types) ; i++)
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{
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if (types[i] == ';')
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{
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*numTypes = *numTypes + 1;
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}
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}
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typeArray = malloc(*numTypes * sizeof(char*));
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i = 0;
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type = strtok(types, ";");
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while (type)
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{
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typeArray[i] = malloc(strlen(type) + 1);
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strcpy(typeArray[i], type);
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type = strtok(NULL, ";");
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i++;
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}
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return typeArray;
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}
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Mission *getMission(char *filename)
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{
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StarSystem *starSystem;
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Mission *mission;
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for (starSystem = game.starSystemHead.next ; starSystem != NULL ; starSystem = starSystem->next)
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{
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for (mission = starSystem->missionHead.next ; mission != NULL ; mission = mission->next)
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{
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if (strcmp(mission->filename, filename) == 0)
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{
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return mission;
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}
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}
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}
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return NULL;
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}
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int isMissionAvailable(Mission *mission, Mission *prev)
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{
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Mission *reqMission;
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if (mission->requires)
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{
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if (strcmp(mission->requires, "PREVIOUS") == 0)
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{
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return prev->completed;
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}
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else
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{
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reqMission = getMission(mission->requires);
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if (reqMission != NULL)
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{
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return reqMission->completed;
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}
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}
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}
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return 1;
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}
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static unsigned long hashcode(const char *str)
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{
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unsigned long hash = 5381;
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int c;
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c = *str;
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while (c)
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{
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hash = ((hash << 5) + hash) + c;
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c = *str++;
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}
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return abs(hash);
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}
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