171 lines
3.5 KiB
C
171 lines
3.5 KiB
C
/*
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Copyright (C) 2018 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 "sprites.h"
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static void animateSprite(Sprite *s);
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static void loadGameSprites(void);
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static void loadSpriteList(char *filename);
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void loadSprite(cJSON *root);
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static Sprite spriteHead;
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static Sprite *spriteTail;
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void initSprites(void)
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{
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memset(&spriteHead, 0, sizeof(Sprite));
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spriteTail = &spriteHead;
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loadGameSprites();
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}
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Sprite *getSprite(char *name)
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{
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Sprite *s;
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for (s = spriteHead.next ; s != NULL ; s = s->next)
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{
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if (strcmp(s->name, name) == 0)
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{
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return s;
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}
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}
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "No such sprite '%s'", name);
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exit(1);
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return NULL;
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}
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void animateSprites(void)
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{
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Sprite *s;
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for (s = spriteHead.next ; s != NULL ; s = s->next)
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{
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animateSprite(s);
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}
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}
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static void animateSprite(Sprite *s)
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{
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if (s->currentTime != -1)
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{
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s->currentTime--;
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if (s->currentTime <= 0)
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{
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s->currentFrame = wrap(s->currentFrame + 1, 0, s->numFrames - 1);
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s->currentTime = s->times[s->currentFrame];
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}
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}
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}
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SDL_Rect *getCurrentFrame(Sprite *s)
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{
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return &s->frames[s->currentFrame]->rect;
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}
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static void loadGameSprites(void)
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{
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char **filenames;
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char path[MAX_FILENAME_LENGTH];
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int count, i;
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filenames = getFileList("data/sprites", &count);
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for (i = 0 ; i < count ; i++)
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{
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sprintf(path, "data/sprites/%s", filenames[i]);
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loadSpriteList(path);
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free(filenames[i]);
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}
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free(filenames);
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}
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static void loadSpriteList(char *filename)
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{
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cJSON *root, *node;
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char *text;
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Loading %s", filename);
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text = readFile(filename);
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root = cJSON_Parse(text);
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for (node = root->child ; node != NULL ; node = node->next)
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{
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loadSprite(node);
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}
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cJSON_Delete(root);
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free(text);
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}
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void loadSprite(cJSON *root)
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{
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Sprite *s;
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cJSON *frame;
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char *filename;
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int i;
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s = malloc(sizeof(Sprite));
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memset(s, 0, sizeof(Sprite));
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spriteTail->next = s;
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spriteTail = s;
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STRNCPY(s->name, cJSON_GetObjectItem(root, "name")->valuestring, MAX_NAME_LENGTH);
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for (frame = cJSON_GetObjectItem(root, "frame")->child ; frame != NULL ; frame = frame->next)
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{
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s->numFrames++;
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}
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s->times = malloc(sizeof(int) * s->numFrames);
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s->filenames = malloc(sizeof(char*) * s->numFrames);
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s->frames = malloc(sizeof(Atlas*) * s->numFrames);
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i = 0;
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for (frame = cJSON_GetObjectItem(root, "frame")->child ; frame != NULL ; frame = frame->next)
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{
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s->times[i] = cJSON_GetObjectItem(frame, "time")->valueint;
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if (cJSON_GetObjectItem(frame, "content") != NULL)
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{
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filename = cJSON_GetObjectItem(frame, "content")->valuestring;
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s->filenames[i] = malloc(strlen(filename) + 1);
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STRNCPY(s->filenames[i], filename, strlen(filename));
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s->frames[i] = getImageFromAtlas(filename);
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}
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i++;
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}
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}
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void destroySprites(void)
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{
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}
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