Asset refactor

cmake/modules/Findstb.cmake

@@ -0,0 +1,31 @@
+# Copyright (c) 2026 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+include(FetchContent)
+FetchContent_Declare(
+  stb
+  GIT_REPOSITORY https://github.com/nothings/stb.git
+)
+
+# Fetch stb if not already done
+FetchContent_MakeAvailable(stb)
+
+# Find the stb_image.h header
+set(STB_INCLUDE_DIR "${stb_SOURCE_DIR}")
+set(STB_IMAGE_HEADER "${stb_SOURCE_DIR}/stb_image.h")
+
+if(EXISTS "${STB_IMAGE_HEADER}")
+  add_library(stb_image INTERFACE)
+  target_include_directories(stb_image INTERFACE "${STB_INCLUDE_DIR}")
+  set(STB_IMAGE_FOUND TRUE)
+else()
+  set(STB_IMAGE_FOUND FALSE)
+endif()
+
+# Standard CMake variables
+set(STB_IMAGE_INCLUDE_DIRS "${STB_INCLUDE_DIR}")
+set(STB_IMAGE_LIBRARIES stb_image)
+
+mark_as_advanced(STB_IMAGE_INCLUDE_DIRS STB_IMAGE_LIBRARIES STB_IMAGE_FOUND)