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

lib/cyberarm_engine/model/parser.rb

@@ -0,0 +1,75 @@
+module CyberarmEngine
+  TextureCoordinate = Struct.new(:u, :v, :weight)
+  Point = Struct.new(:x, :y)
+  Color = Struct.new(:red, :green, :blue, :alpha)
+  Face  = Struct.new(:vertices, :uvs, :normals, :colors, :material, :smoothing)
+
+  class Model
+    class Parser
+      @@parsers = []
+
+      def self.handles
+        raise NotImplementedError, "Model::Parser#handles must return an array of file extensions that this parser supports"
+      end
+
+      def self.inherited(parser)
+        @@parsers << parser
+      end
+
+      def self.find(file_type)
+        found_parser = @@parsers.find do |parser|
+          parser.handles.include?(file_type)
+        end
+
+        return found_parser
+      end
+
+      def self.supported_formats
+        @@parsers.map { |parser| parser.handles }.flatten.map { |s| ".#{s}" }.join(", ")
+      end
+
+      def initialize(model)
+        @model = model
+      end
+
+      def parse
+      end
+
+      def set_object(id: nil, name: nil)
+        _model = nil
+
+        if id
+          _model = @model.objects.find { |o| o.id == id }
+        elsif name
+          _model = @model.objects.find { |o| o.name == name }
+        else
+          raise "Must provide either an id: or name:"
+        end
+
+        if _model
+          @model.current_object = _model
+        else
+          raise "Couldn't find ModelObject!"
+        end
+      end
+
+      def change_object(id, name)
+        @model.objects << Model::ModelObject.new(id, name)
+        @model.current_object = @model.objects.last
+      end
+
+      def set_material(name)
+        @model.current_material = name
+        @model.current_object.materials << current_material
+      end
+
+      def add_material(name, material)
+        @model.materials[name] = material
+      end
+
+      def current_material
+        @model.materials[@model.current_material]
+      end
+    end
+  end
+end