Merge EC into engine directly

There is not much gained separating EC from engine. Merge it.
sc is still separated though.

scenes/engine/CMakeLists.txt

@@ -1,4 +1,4 @@
-add_subdirectory(EC)
+add_subdirectory(sc)
 add_library(lib_engine STATIC
     assets.c
     AABB.c
@@ -6,6 +6,8 @@ add_library(lib_engine STATIC
     engine.c
     collisions.c
     rres.c
+    mempool.c
+    entManager.c
     ${LIBZSTD_DIR}/lib/libzstd.a
 )
 target_include_directories(lib_engine
@@ -13,9 +15,18 @@ target_include_directories(lib_engine
     ${LIBZSTD_DIR}/include
     PUBLIC
     ${CMAKE_CURRENT_LIST_DIR}
+    ${RAYLIB_DIR}/include
+)
+target_link_directories(lib_engine
+    PUBLIC
+    ${RAYLIB_DIR}/lib
 )
 target_link_libraries(lib_engine
     PUBLIC
-    lib_EC
     zstd
+    raylib
+    sc_queue
+    sc_map
+    sc_array
+    m
 )

scenes/engine/EC/CMakeLists.txt

@@ -1,23 +0,0 @@
-add_subdirectory(sc)
-add_library(lib_EC STATIC
-    mempool.c
-    entManager.c
-)
-target_include_directories(lib_EC
-    PUBLIC
-    ${CMAKE_CURRENT_LIST_DIR}
-    ${RAYLIB_DIR}/include
-)
-
-target_link_directories(lib_EC
-    PUBLIC
-    ${RAYLIB_DIR}/lib
-)
-target_link_libraries(lib_EC
-    PUBLIC
-    raylib
-    sc_queue
-    sc_map
-    sc_array
-    m
-)

scenes/engine/engine.c

@@ -62,6 +62,7 @@ bool load_sfx(GameEngine_t* engine, const char* snd_name, uint32_t tag_idx)
     engine->sfx_list.sfx[tag_idx].snd = snd;
     engine->sfx_list.sfx[tag_idx].cooldown = 0;
     engine->sfx_list.sfx[tag_idx].plays = 0;
+    return true;
 }
 
 void play_sfx(GameEngine_t* engine, unsigned int tag_idx)