Add asset saving

source/engine/editor.c

@@ -27,6 +27,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "log.h"
+
 #include "ftw.h"
 
 #include <stb_ds.h>
@@ -122,6 +124,45 @@ static void print_files_in_directory(const char *dirpath) {
 
 static void get_all_files() { print_files_in_directory("."); }
 
+size_t asset_side_size(struct fileasset *asset) {
+    if (asset->type == ASSET_TYPE_IMAGE)
+        return sizeof(struct Texture);
+
+    return 0;
+}
+
+void save_asset() {
+    if (selected_asset == NULL) {
+        YughWarn("No asset to save.", 0);
+        return;
+    }
+
+    if (selected_asset->type != ASSET_TYPE_IMAGE) return;
+
+    FILE *f = res_open(str_replace_ext(selected_asset->filename, EXT_ASSET), "w");
+    fwrite(selected_asset->data, asset_side_size(selected_asset), 1, f);
+    fclose(f);
+}
+
+void load_asset() {
+    if (selected_asset == NULL) {
+        YughWarn("No asset to load.", 0);
+        return;
+    }
+
+    if (selected_asset->type != ASSET_TYPE_IMAGE) return;
+
+    if (selected_asset->data == NULL)
+        selected_asset->data = malloc(asset_side_size(selected_asset));
+
+    FILE *f = res_open(str_replace_ext(selected_asset->filename, EXT_ASSET), "r");
+    if (f == NULL)
+        return;
+
+    fread(selected_asset->data, asset_side_size(selected_asset), 1, f);
+    fclose(f);
+}
+
 static int *compute_prefix_function(const char *str) {
   int str_len = strlen(str);
   int *pi = (int *)malloc(sizeof(int) * str_len);
@@ -736,7 +777,13 @@ void editor_selectasset(struct fileasset *asset) {
     fread(asset->data, 1, length, fasset);
     fclose(fasset);
   }
+
+  if (selected_asset != NULL)
+      save_asset();
+
+
   selected_asset = asset;
+  load_asset();
 }
 
 void editor_selectasset_str(char *path) {
@@ -892,7 +939,7 @@ void game_pause() { physOn = 0; }
 
 void sprite_gui(struct mSprite *sprite) {
   nuke_nel(2);
-  nk_labelf(ctx, NK_TEXT_LEFT, "Path %s", sprite->tex->path);
+  nk_labelf(ctx, NK_TEXT_LEFT, "Path %s", tex_get_path(sprite->tex));
 
 
   if (nk_button_label(ctx, "Load texture") && selected_asset != NULL) {
@@ -900,12 +947,12 @@ void sprite_gui(struct mSprite *sprite) {
   }
 
   if (sprite->tex != NULL) {
-    nk_labelf(ctx, NK_TEXT_LEFT, "%s", sprite->tex->path);
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s", tex_get_path(sprite->tex));
     nk_labelf(ctx, NK_TEXT_LEFT, "%dx%d", sprite->tex->width, sprite->tex->height);
-    if (nk_button_label(ctx, "Imgbutton"))
-      editor_selectasset_str(sprite->tex->path);
-    // if (ImGui::ImageButton ((void *) (intptr_t) sprite->tex->id, ImVec2(50,
-    // 50))) {
+
+    nk_layout_row_static(ctx, sprite->tex->height, sprite->tex->width, 1);
+    if (nk_button_image(ctx, nk_image_id(sprite->tex->id)))
+      editor_selectasset_str(tex_get_path(sprite->tex));
   }
   nk_property_float2(ctx, "Sprite Position", -1.f, sprite->pos, 0.f, 0.01f, 0.01f);
 
@@ -924,4 +971,5 @@ void sprite_gui(struct mSprite *sprite) {
     sprite->pos[0] = -0.5f;
     sprite->pos[1] = 0.f;
   }
-}
+}
+

source/engine/editor.h

@@ -17,7 +17,7 @@ struct fileasset {
     short filename_len;
     bool searched;
     short type;
-    void *data;
+    void *data;  // Struct of the underlying asset - Texture struct, etc
 };
 
 typedef struct {

source/engine/resources.c

@@ -21,6 +21,7 @@ struct vec *prefabs = NULL;
 
 const char *EXT_PREFAB = ".prefab";
 const char *EXT_LEVEL = ".level";
+const char *EXT_ASSET = ".asset";
 int stemlen = 0;
 
 static const char *cur_ext = NULL;
@@ -100,6 +101,16 @@ void findPrefabs()
     fill_extensions(prefabs, DATA_PATH, EXT_PREFAB);
 }
 
+char *str_replace_ext(const char *s, const char *newext) {
+    static char ret[256];
+
+    strncpy(ret, s, 256);
+    char *ext = strrchr(ret, '.');
+    strncpy(ext, newext, 10);
+
+    return ret;
+}
+
 FILE *path_open(const char *tag, const char *fmt, ...)
 {
     va_list args;

source/engine/resources.h

@@ -12,6 +12,7 @@ extern char *PREF_PATH;
 
 extern const char *EXT_PREFAB;
 extern const char *EXT_LEVEL;
+extern const char *EXT_ASSET;
 extern int stemlen;
 
 void resources_init();
@@ -21,6 +22,7 @@ void findPrefabs();
 void fill_extensions(struct vec *vec, const char *path, const char *ext);
 char *get_filename_from_path(char *path, int extension);
 char *get_directory_from_path(char *path);
+char *str_replace_ext(const char *s, const char *newext);
 FILE *res_open(char *path, const char *tag);
 FILE *path_open(const char *tag, const char *fmt, ...);
 char *make_path(const char *file);

source/engine/texture.c

@@ -19,9 +19,11 @@ struct Texture *texture_pullfromfile(const char *path)
     if (index != -1)
 	return texhash[index].value;
 
+
     struct Texture *tex = calloc(1, sizeof(*tex));
-    tex->path = malloc(strlen(path) + 1);
+ /*   tex->path = malloc(strlen(path) + 1);
     strncpy(tex->path, path, strlen(path) + 1);
+    */
     tex->flipy = 0;
     tex->opts.sprite = 1;
     tex->opts.gamma = 0;
@@ -34,17 +36,26 @@ struct Texture *texture_pullfromfile(const char *path)
 
     if (stbi_failure_reason()) {
 	YughLog(0, 3, "STBI failed to load file %s with message: %s",
-		tex->path, stbi_failure_reason());
+		path, stbi_failure_reason());
 
     }
 
     tex->data = data;
 
-    shput(texhash, tex->path, tex);
+    shput(texhash, path, tex);
 
     return tex;
 }
 
+char *tex_get_path(struct Texture *tex) {
+    for (int i = 0; i < shlen(texhash); i++) {
+        if (tex == texhash[i].value)
+            return texhash[i].key;
+    }
+
+    return NULL;
+}
+
 struct Texture *texture_loadfromfile(const char *path)
 {
     struct Texture *new = texture_pullfromfile(path);
@@ -61,12 +72,12 @@ struct Texture *texture_loadfromfile(const char *path)
 void tex_pull(struct Texture *tex)
 {
     int n;
+    char *path = tex_get_path(tex);
     stbi_set_flip_vertically_on_load(0);
-    tex->data = stbi_load(tex->path, &tex->width, &tex->height, &n, 4);
+    tex->data = stbi_load(path, &tex->width, &tex->height, &n, 4);
 
     if (stbi_failure_reason())
-	YughLog(0, 3, "STBI failed to load file %s with message: %s",
-		tex->path, stbi_failure_reason());
+	YughLog(0, 3, "STBI failed to load file %s with message: %s", path, stbi_failure_reason());
 }
 
 void tex_flush(struct Texture *tex)
@@ -84,7 +95,7 @@ void tex_gpu_reload(struct Texture *tex)
 void tex_free(struct Texture *tex)
 {
     free(tex->data);
-    free(tex->path);
+    //free(tex->path);
     free(tex);
 }
 

source/engine/texture.h

@@ -41,11 +41,11 @@ struct TextureOptions {
 struct Texture {
     int type;
     unsigned int id;
-    char *path;
+    //char *path;
     int width;
     int height;
     short flipy;
-    unsigned char *data;
+    unsigned char *data;   // Pixel data of the texture, loaded in at runtime
 
     struct TextureOptions opts;
     struct TexAnim anim;
@@ -63,6 +63,8 @@ void tex_bind(struct Texture *tex);
 unsigned int powof2(unsigned int num);
 int ispow2(int num);
 
+char * tex_get_path(struct Texture *tex);
+
 void anim_play(struct TexAnimation *anim);
 void anim_stop(struct TexAnimation *anim);
 void anim_pause(struct TexAnimation *anim);