Added a large portion of I-MIC-FPS's opengl rendering and model loading systems

lib/cyberarm_engine/model_cache.rb

@@ -0,0 +1,35 @@
+module CyberarmEngine
+  module ModelCache
+    CACHE = {}
+
+    def self.find_or_cache(manifest:)
+      model_file = manifest.file_path + "/model/#{manifest.model}"
+
+      type = File.basename(model_file).split(".").last.to_sym
+
+      if model = load_model_from_cache(type, model_file)
+        return model
+      else
+        model = CyberarmEngine::Model.new(file_path: model_file)
+        cache_model(type, model_file, model)
+
+        return model
+      end
+    end
+
+    def self.load_model_from_cache(type, model_file)
+      if CACHE[type].is_a?(Hash)
+        if CACHE[type][model_file]
+          return CACHE[type][model_file]
+        end
+      end
+
+      return false
+    end
+
+    def self.cache_model(type, model_file, model)
+      CACHE[type] = {} unless CACHE[type].is_a?(Hash)
+      CACHE[type][model_file] = model
+    end
+  end
+end