Added support for rendering multiple lights, standardized shaders to use snake case for variables and camel case for functions, stubbed PBR material shader include.

assets/shaders/fragment/g_buffer.glsl

@@ -5,25 +5,25 @@ layout (location = 1) out vec4 fragColor;
 layout (location = 2) out vec3 fragNormal;
 layout (location = 3) out vec3 fragUV;
 
-in vec3 outPosition, outColor, outNormal, outUV, outFragPos, outCameraPos;
+in vec3 out_position, out_color, out_normal, out_uv, out_frag_pos, out_camera_pos;
 out vec4 outputFragColor;
-flat in int outHasTexture;
+flat in int out_has_texture;
 
 uniform sampler2D diffuse_texture;
 
 void main() {
   vec3 result;
 
-  if (outHasTexture == 0) {
-    result = outColor;
+  if (out_has_texture == 0) {
+    result = out_color;
   } else {
-    result = texture(diffuse_texture, outUV.xy).xyz + 0.25;
+    result = texture(diffuse_texture, out_uv.xy).xyz + 0.25;
   }
 
-  fragPosition = outPosition;
+  fragPosition = out_position;
   fragColor = vec4(result, 1.0);
-  fragNormal = outNormal;
-  fragUV = outUV;
+  fragNormal = out_normal;
+  fragUV = out_uv;
 
   float gamma = 2.2;
   outputFragColor.rgb = pow(fragColor.rgb, vec3(1.0 / gamma));

assets/shaders/fragment/lighting.glsl

@@ -1,22 +1,23 @@
 #version 330 core
-out vec4 FragColor;
+out vec4 frag_color;
 
 @include "light_struct"
 const int DIRECTIONAL = 0;
 const int POINT = 1;
 const int SPOT = 2;
 
-in vec2 outTexCoords;
-flat in Light outLight[1];
+flat in Light out_lights[7];
+in vec2 out_tex_coords;
+flat in int out_light_count;
 
 uniform sampler2D diffuse, position, texcoord, normal, depth;
 
 vec4 directionalLight(Light light) {
-  vec3 norm = normalize(texture(normal, outTexCoords).rgb);
-  vec3 diffuse_color = texture(diffuse, outTexCoords).rgb;
-  vec3 fragPos = texture(position, outTexCoords).rgb;
+  vec3 norm = normalize(texture(normal, out_tex_coords).rgb);
+  vec3 diffuse_color = texture(diffuse, out_tex_coords).rgb;
+  vec3 frag_pos = texture(position, out_tex_coords).rgb;
 
-  vec3 lightDir = normalize(light.position - fragPos);
+  vec3 lightDir = normalize(light.position - frag_pos);
   float diff = max(dot(norm, lightDir), 0);
 
   vec3 _ambient = light.ambient;
@@ -59,5 +60,10 @@ vec4 calculateLighting(Light light) {
 }
 
 void main() {
-  FragColor = texture(diffuse, outTexCoords) * calculateLighting(outLight[0]);
-}
+  frag_color = vec4(0.0);
+
+  for(int i = 0; i < out_light_count; i++)
+  {
+    frag_color += texture(diffuse, out_tex_coords) * calculateLighting(out_lights[i]);
+  }
+}

assets/shaders/include/material_struct.glsl

@@ -0,0 +1,16 @@
+struct Material {
+  vec3 color;
+  vec3 roughness;
+  vec3 metalic;
+  vec3 specular;
+
+  bool use_color_texture;
+  bool use_roughness_texture;
+  bool use_metalic_texture;
+  bool use_specular_texture;
+
+  sampler2D color_tex;
+  sampler2D roughness_tex;
+  sampler2D metalic_tex;
+  sampler2D specular_tex;
+};

assets/shaders/vertex/g_buffer.glsl

@@ -1,28 +1,28 @@
 # version 330 core
 
-layout(location = 0) in vec3 inPosition;
-layout(location = 1) in vec3 inColor;
-layout(location = 2) in vec3 inNormal;
-layout(location = 3) in vec3 inUV;
+layout(location = 0) in vec3 in_position;
+layout(location = 1) in vec3 in_color;
+layout(location = 2) in vec3 in_normal;
+layout(location = 3) in vec3 in_uv;
 
 uniform mat4 projection, view, model;
-uniform int hasTexture;
-uniform vec3 cameraPos;
+uniform int has_texture;
+uniform vec3 camera_pos;
 
-out vec3 outPosition, outColor, outNormal, outUV;
-out vec3 outFragPos, outViewPos, outCameraPos;
-flat out int outHasTexture;
+out vec3 out_position, out_color, out_normal, out_uv;
+out vec3 out_frag_pos, out_view_pos, out_camera_pos;
+flat out int out_has_texture;
 
 void main() {
   // projection * view * model * position
-  outPosition = inPosition;
-  outColor = inColor;
-  outNormal= normalize(transpose(inverse(mat3(model))) * inNormal);
-  outUV    = inUV;
-  outHasTexture = hasTexture;
-  outCameraPos = cameraPos;
+  out_position = in_position;
+  out_color = in_color;
+  out_normal= normalize(transpose(inverse(mat3(model))) * in_normal);
+  out_uv    = in_uv;
+  out_has_texture = has_texture;
+  out_camera_pos = camera_pos;
 
-  outFragPos = vec3(model * vec4(inPosition, 1.0));
+  out_frag_pos = vec3(model * vec4(in_position, 1.0));
 
-  gl_Position = projection * view * model * vec4(inPosition, 1.0);
+  gl_Position = projection * view * model * vec4(in_position, 1.0);
 }

assets/shaders/vertex/lighting.glsl

@@ -1,17 +1,24 @@
 #version 330 core
 @include "light_struct"
 
-layout (location = 0) in vec3 inPosition;
-layout (location = 1) in vec2 inTexCoords;
+layout (location = 0) in vec3 in_position;
+layout (location = 1) in vec2 in_tex_coords;
 
 uniform sampler2D diffuse, position, texcoord, normal, depth;
-uniform Light light[1];
+uniform int light_count;
+uniform Light lights[7];
 
-out vec2 outTexCoords;
-flat out Light outLight[1];
+out vec2 out_tex_coords;
+flat out int out_light_count;
+flat out Light out_lights[7];
 
 void main() {
-  gl_Position = vec4(inPosition.x, inPosition.y, inPosition.z, 1.0);
-  outTexCoords = inTexCoords;
-  outLight = light;
-}
+  gl_Position = vec4(in_position.x, in_position.y, in_position.z, 1.0);
+  out_tex_coords = in_tex_coords;
+  out_light_count = light_count;
+
+  for(int i = 0; i < light_count; i++)
+  {
+    out_lights[i] = lights[i];
+  }
+}

lib/cyberarm_engine.rb

@@ -66,6 +66,6 @@ require_relative "cyberarm_engine/model/material"
 require_relative "cyberarm_engine/model/model_object"
 require_relative "cyberarm_engine/model/parser"
 require_relative "cyberarm_engine/model/parsers/wavefront_parser"
-require_relative "cyberarm_engine/model/parsers/collada_parser" if defined?(Nokogiri)
+require_relative "cyberarm_engine/model/parsers/collada_parser" if RUBY_ENGINE != "mruby" && defined?(Nokogiri)
 
 require_relative "cyberarm_engine/builtin/intro_state"

lib/cyberarm_engine/builtin/intro_state.rb

@@ -18,7 +18,7 @@ module CyberarmEngine
 
       @gosu_logo = generate_proxy("Gosu",     "Game Library",         0xff_111111)
       @ruby_logo = generate_proxy("Ruby",     "Programming Language", 0xff_880000)
-      @opengl_logo = generate_proxy("OpenGL", "Graphics API",         0xff_5586a4) if defined?(OpenGL)
+      @opengl_logo = generate_proxy("OpenGL", "Graphics API",         0xff_5586a4) if RUBY_ENGINE != "mruby" && defined?(OpenGL)
 
       base_time = Gosu.milliseconds
 

lib/cyberarm_engine/common.rb

@@ -52,7 +52,7 @@ module CyberarmEngine
     end
 
     def lighten(color, amount = 25)
-      if defined?(color.alpha)
+      if color.respond_to?(:alpha)
         Gosu::Color.rgba(color.red + amount, color.green + amount, color.blue + amount, color.alpha)
       else
         Gosu::Color.rgb(color.red + amount, color.green + amount, color.blue + amount)
@@ -60,7 +60,7 @@ module CyberarmEngine
     end
 
     def darken(color, amount = 25)
-      if defined?(color.alpha)
+      if color.respond_to?(:alpha)
         Gosu::Color.rgba(color.red - amount, color.green - amount, color.blue - amount, color.alpha)
       else
         Gosu::Color.rgb(color.red - amount, color.green - amount, color.blue - amount)

lib/cyberarm_engine/console.rb

@@ -103,7 +103,7 @@ module CyberarmEngine
 
     def button_down(id)
       case id
-      when Gosu::KbEnter, Gosu::KbReturn
+      when Gosu::KB_ENTER, Gosu::KB_RETURN
         return unless @text_input.text.length.positive?
 
         @history.text += "\n<c=999999>> #{@text_input.text}</c>"
@@ -113,12 +113,12 @@ module CyberarmEngine
         handle_command
         @text_input.text = ""
 
-      when Gosu::KbUp
+      when Gosu::KB_UP
         @command_history_index -= 1
         @command_history_index = 0 if @command_history_index.negative?
         @text_input.text = @command_history[@command_history_index]
 
-      when Gosu::KbDown
+      when Gosu::KB_DOWN
         @command_history_index += 1
         if @command_history_index > @command_history.size - 1
           @text_input.text = "" unless @command_history_index > @command_history.size
@@ -127,7 +127,7 @@ module CyberarmEngine
           @text_input.text = @command_history[@command_history_index]
         end
 
-      when Gosu::KbTab
+      when Gosu::KB_TAB
         split = @text_input.text.split(" ")
 
         if !@text_input.text.end_with?(" ") && split.size == 1
@@ -142,7 +142,7 @@ module CyberarmEngine
           cmd.autocomplete(self)
         end
 
-      when Gosu::KbBacktick
+      when Gosu::KB_BACKTICK
         # Remove backtick character from input
         @text_input.text = if @text_input.text.size > 1
                              @text_input.text[0..@text_input.text.size - 2]
@@ -151,7 +151,7 @@ module CyberarmEngine
                            end
 
       # Copy
-      when Gosu::KbC
+      when Gosu::KB_C
         if control_down? && shift_down?
           @memory = @text_input.text[caret_start..caret_end - 1] if caret_start != caret_end
           p @memory
@@ -160,7 +160,7 @@ module CyberarmEngine
         end
 
       # Paste
-      when Gosu::KbV
+      when Gosu::KB_V
         if control_down? && shift_down?
           string = @text_input.text.chars.insert(caret_pos, @memory).join
           _caret_pos = caret_pos
@@ -170,7 +170,7 @@ module CyberarmEngine
         end
 
       # Cut
-      when Gosu::KbX
+      when Gosu::KB_X
         if control_down? && shift_down?
           @memory = @text_input.text[caret_start..caret_end - 1] if caret_start != caret_end
           string  = @text_input.text.chars
@@ -182,7 +182,7 @@ module CyberarmEngine
         end
 
       # Delete word to left of caret
-      when Gosu::KbW
+      when Gosu::KB_W
         if control_down?
           split = @text_input.text.split(" ")
           split.delete(split.last)
@@ -190,7 +190,7 @@ module CyberarmEngine
         end
 
       # Clear history
-      when Gosu::KbL
+      when Gosu::KB_L
         @history.text = "" if control_down?
       end
     end

lib/cyberarm_engine/game_object.rb

@@ -42,7 +42,7 @@ module CyberarmEngine
         @radius = if options[:radius]
                     options[:radius]
                   else
-                    defined?(@image.width) ? ((@image.width + @image.height) / 4) * scale : 1
+                    @image.respond_to?(:width) ? ((@image.width + @image.height) / 4) * scale : 1
                   end
       end
     end

lib/cyberarm_engine/model.rb

@@ -49,8 +49,9 @@ module CyberarmEngine
 
       @objects.each { |o| @vertex_count += o.vertices.size }
 
-      start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_millisecond)
+      # start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_millisecond)
       # build_collision_tree
+      # puts "    Building mesh collision tree took #{((Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_millisecond) - start_time) / 1000.0).round(2)} seconds"
     end
 
     def parse(parser)
@@ -150,24 +151,24 @@ module CyberarmEngine
       glBindBuffer(GL_ARRAY_BUFFER, @positions_buffer_id)
       gl_error?
 
-      #                     inPosition
+      #                     in_position
       glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nil)
       gl_error?
       # colors
       glBindBuffer(GL_ARRAY_BUFFER, @colors_buffer_id)
-      #                     inColor
+      #                     in_color
       glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, nil)
       gl_error?
       # normals
       glBindBuffer(GL_ARRAY_BUFFER, @normals_buffer_id)
-      #                     inNormal
+      #                     in_normal
       glVertexAttribPointer(2, 4, GL_FLOAT, GL_FALSE, 0, nil)
       gl_error?
 
       if has_texture?
         # uvs
         glBindBuffer(GL_ARRAY_BUFFER, @uvs_buffer_id)
-        #                     inUV
+        #                     in_uv
         glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, 0, nil)
         gl_error?
       end
@@ -177,7 +178,7 @@ module CyberarmEngine
     end
 
     def build_collision_tree
-      @aabb_tree = AABBTree.new
+      @aabb_tree = IMICFPS::AABBTree.new
 
       @faces.each do |face|
         box = BoundingBox.new

lib/cyberarm_engine/opengl/renderer/opengl_renderer.rb

@@ -44,7 +44,7 @@ module CyberarmEngine
             shader.uniform_transform("projection", camera.projection_matrix)
             shader.uniform_transform("view", camera.view_matrix)
             shader.uniform_transform("model", entity.model_matrix)
-            shader.uniform_vec3("cameraPosition", camera.position)
+            shader.uniform_vector3("camera_position", camera.position)
 
             gl_error?
             draw_model(entity.model, shader)
@@ -154,15 +154,21 @@ module CyberarmEngine
         glBindTexture(GL_TEXTURE_2D, @g_buffer.texture(:depth))
         shader.uniform_integer("depth", 4)
 
-        lights.each_with_index do |light, _i|
-          shader.uniform_integer("light[0].type", light.type)
-          shader.uniform_vec3("light[0].direction", light.direction)
-          shader.uniform_vec3("light[0].position", light.position)
-          shader.uniform_vec3("light[0].diffuse", light.diffuse)
-          shader.uniform_vec3("light[0].ambient", light.ambient)
-          shader.uniform_vec3("light[0].specular", light.specular)
+        # FIXME: Try to figure out how to up this to 32 and/or beyond
+        #        (currently fails with more then 7 lights passed in to shader)
+        lights.each_slice(7).each do |light_group|
+          light_group.each_with_index do |light, _i|
+            shader.uniform_integer("light_count", light_group.size)
 
-          glDrawArrays(GL_TRIANGLES, 0, @g_buffer.vertices.size)
+            shader.uniform_integer("lights[#{_i}].type",      light.type)
+            shader.uniform_vector3("lights[#{_i}].direction", light.direction)
+            shader.uniform_vector3("lights[#{_i}].position",  light.position)
+            shader.uniform_vector3("lights[#{_i}].diffuse",   light.diffuse)
+            shader.uniform_vector3("lights[#{_i}].ambient",   light.ambient)
+            shader.uniform_vector3("lights[#{_i}].specular",  light.specular)
+
+            glDrawArrays(GL_TRIANGLES, 0, @g_buffer.vertices.size)
+          end
         end
 
         glBindVertexArray(0)
@@ -215,7 +221,7 @@ module CyberarmEngine
 
       offset = 0
       model.objects.each do |object|
-        shader.uniform_boolean("hasTexture", object.has_texture?)
+        shader.uniform_boolean("has_texture", object.has_texture?)
 
         if object.has_texture?
           glBindTexture(GL_TEXTURE_2D, object.materials.find { |mat| mat.texture_id }.texture_id)

lib/cyberarm_engine/opengl/renderer/renderer.rb

@@ -8,8 +8,19 @@ module CyberarmEngine
     end
 
     def draw(camera, lights, entities)
+      Stats.frame.start_timing(:opengl_renderer)
+
+      Stats.frame.start_timing(:opengl_model_renderer)
       @opengl_renderer.render(camera, lights, entities)
-      @bounding_box_renderer.render(entities) if @show_bounding_boxes
+      Stats.frame.end_timing(:opengl_model_renderer)
+
+      if @show_bounding_boxes
+        Stats.frame.start_timing(:opengl_boundingbox_renderer)
+        @bounding_box_renderer.render(entities)
+        Stats.frame.end_timing(:opengl_boundingbox_renderer)
+      end
+
+      Stats.frame.end_timing(:opengl_renderer)
     end
 
     def canvas_size_changed

lib/cyberarm_engine/opengl/shader.rb

@@ -385,7 +385,7 @@ module CyberarmEngine
     # @param value [Vector]
     # @param location [Integer]
     # @return [void]
-    def uniform_vec3(variable, value, location = nil)
+    def uniform_vector3(variable, value, location = nil)
       attr_loc = location || attribute_location(variable)
 
       glUniform3f(attr_loc, *value.to_a[0..2])
@@ -397,7 +397,7 @@ module CyberarmEngine
     # @param value [Vector]
     # @param location [Integer]
     # @return [void]
-    def uniform_vec4(variable, value, location = nil)
+    def uniform_vector4(variable, value, location = nil)
       attr_loc = location || attribute_location(variable)
 
       glUniform4f(attr_loc, *value.to_a)

lib/cyberarm_engine/stats.rb

@@ -1,20 +1,191 @@
 module CyberarmEngine
   class Stats
-    @@hash = {
-      gui_recalculations_last_frame: 0
-    }
+    @frames = []
+    @frame_index = -1
+    @max_frame_history = 1024
 
-    def self.get(key)
-      @@hash.dig(key)
+    def self.new_frame
+      if @frames.size < @max_frame_history
+        @frames << Frame.new
+      else
+        @frames[@frame_index] = Frame.new
+      end
     end
 
-    def self.increment(key, n)
-      @@hash[key] += n
+    def self.frame
+      @frames[@frame_index]
     end
 
-    def self.clear
-      @@hash.each do |key, _value|
-        @@hash[key] = 0
+    def self.end_frame
+      frame&.complete
+
+      @frame_index += 1
+      @frame_index %= @max_frame_history
+    end
+
+    def self.frames
+      if @frames.size < @max_frame_history
+        @frames
+      else
+        @frames.rotate(@frame_index - (@max_frame_history - (@frames.size - 1)))
+      end
+    end
+
+    def self.frame_index
+      @frame_index
+    end
+
+    def self.max_frame_history
+      @max_frame_history
+    end
+
+    class Frame
+      Timing = Struct.new(:start_time, :end_time, :duration)
+
+      attr_reader :frame_timing, :counters, :timings, :multitimings
+      def initialize
+        @frame_timing = Timing.new(Gosu.milliseconds, -1, -1)
+        @attempted_multitiming = false
+
+        @counters = {
+          gui_recalculations: 0
+        }
+
+        @timings = {}
+        @multitimings = {}
+      end
+
+      def increment(key, number = 1)
+        @counters[key] ||= 0
+        @counters[key] += number
+      end
+
+      def start_timing(key)
+        raise "key must be a symbol!" unless key.is_a?(Symbol)
+        if @timings[key]
+          # FIXME: Make it not spammy...
+          # warn "Only one timing per key per frame. (Timing for #{key.inspect} already exists!)"
+          @attempted_multitiming = true
+          @multitimings[key] = true
+
+          return
+        end
+
+        @timings[key] = Timing.new(Gosu.milliseconds, -1, -1)
+      end
+
+      def end_timing(key)
+        timing = @timings[key]
+
+        # FIXME: Make it not spammy...
+        # warn "Timing #{key.inspect} already ended!" if timing.end_time != -1
+
+        timing.end_time = Gosu.milliseconds
+        timing.duration = timing.end_time - timing.start_time
+      end
+
+      def complete
+        @frame_timing.end_time = Gosu.milliseconds
+        @frame_timing.duration = @frame_timing.end_time - @frame_timing.start_time
+
+        # Lock data structures
+        @frame_timing.freeze
+        @counters.freeze
+        @timings.freeze
+        @multitimings.freeze
+      end
+
+      def complete?
+        @frame_timing.duration != -1
+      end
+
+      def attempted_multitiming?
+        @attempted_multitiming
+      end
+    end
+
+    class StatsPlotter
+      attr_reader :position
+
+      def initialize(x, y, z = Float::INFINITY, width = 128, height = 128)
+        @position = Vector.new(x, y, z)
+        @width = width
+        @height = height
+
+        @padding = 2
+        @text_size = 16
+
+        @max_timing_label = CyberarmEngine::Text.new("", x: x + @padding + 1, y: y + @padding, z: z, size: @text_size, border: true)
+        @avg_timing_label = CyberarmEngine::Text.new("", x: x + @padding + 1, y: y + @padding + @height / 2 - @text_size / 2, z: z, size: @text_size, border: true)
+        @min_timing_label = CyberarmEngine::Text.new("", x: x + @padding + 1, y: y + @height - (@text_size + @padding / 2), z: z, size: @text_size, border: true)
+
+        @timings_label = CyberarmEngine::Text.new("", x: x + @padding + @width + @padding, y: y + @padding, z: z, size: @text_size, border: true)
+
+        @frame_stats = []
+        @graphs = {
+          frame_timings: []
+        }
+      end
+
+      def calculate_graphs
+        calculate_frame_timings_graph
+      end
+
+      def calculate_frame_timings_graph
+        @graphs[:frame_timings].clear
+
+        samples = @width - @padding
+        nodes = Array.new(samples.ceil) { [] }
+
+        slice = 0
+        @frame_stats.each_slice((CyberarmEngine::Stats.max_frame_history / samples.to_f).ceil) do |bucket|
+          bucket.each do |frame|
+            nodes[slice] << frame.frame_timing.duration
+          end
+
+          slice += 1
+        end
+
+        nodes.each_with_index do |cluster, i|
+          break if cluster.empty?
+
+          @graphs[:frame_timings] << CyberarmEngine::Vector.new(@position.x + @padding + 1 * i, (@position.y + @height - @padding) - cluster.max)
+        end
+      end
+
+      def draw
+        @frame_stats = CyberarmEngine::Stats.frames.select(&:complete?)
+        return if @frame_stats.empty?
+
+        calculate_graphs
+
+        @max_timing_label.text = "Max: #{@frame_stats.map { |f| f.frame_timing.duration }.max.to_s.rjust(3, " ")}ms"
+        @avg_timing_label.text = "Avg: #{(@frame_stats.map { |f| f.frame_timing.duration }.sum / @frame_stats.size).to_s.rjust(3, " ")}ms"
+        @min_timing_label.text = "Min: #{@frame_stats.map { |f| f.frame_timing.duration }.min.to_s.rjust(3, " ")}ms"
+
+        Gosu.draw_rect(@position.x, @position.y, @width, @height, 0xaa_222222, @position.z)
+        Gosu.draw_rect(@position.x + @padding, @position.y + @padding, @width - @padding * 2, @height - @padding * 2, 0xaa_222222, @position.z)
+
+        draw_graphs
+
+        @max_timing_label.draw
+        @avg_timing_label.draw
+        @min_timing_label.draw
+
+        # TODO: Make this optional
+        draw_timings
+      end
+
+      def draw_graphs
+        Gosu.draw_path(@graphs[:frame_timings], Gosu::Color::WHITE, Float::INFINITY)
+      end
+
+      def draw_timings
+        frame = @frame_stats.last
+
+        @timings_label.text = "#{frame.attempted_multitiming? ? "<c=d00>Attempted Multitiming!\nTimings may be inaccurate for:\n#{frame.multitimings.map { |m, _| m}.join("\n") }</c>\n\n" : ''}#{frame.timings.map { |t, v| "#{t}: #{v.duration}ms" }.join("\n")}"
+        Gosu.draw_rect(@timings_label.x - @padding, @timings_label.y - @padding, @timings_label.width + @padding * 2, @timings_label.height + @padding * 2, 0xdd_222222, @position.z)
+        @timings_label.draw
       end
     end
   end

lib/cyberarm_engine/text.rb

@@ -81,6 +81,7 @@ module CyberarmEngine
         @size = size
         @font = font_name
 
+        invalidate_cache!
         @textobject = check_cache(size, font_name)
       end
     end
@@ -149,6 +150,8 @@ module CyberarmEngine
     end
 
     def markup_width(text = @text)
+      text = text.to_s
+
       spacing = 0
       spacing += @border_size if @border
       spacing += @shadow_size if @shadow

lib/cyberarm_engine/ui/element.rb

@@ -196,7 +196,7 @@ module CyberarmEngine
     end
 
     def enter(_sender)
-      @focus = false unless window.button_down?(Gosu::MsLeft)
+      @focus = false unless Gosu.button_down?(Gosu::MS_LEFT)
 
       if !@enabled
         update_styles(:disabled)
@@ -316,7 +316,8 @@ module CyberarmEngine
     end
 
     def debug_draw
-      return if defined?(GUI_DEBUG_ONLY_ELEMENT) && self.class == GUI_DEBUG_ONLY_ELEMENT
+      # FIXME
+      return# if const_defined?(GUI_DEBUG_ONLY_ELEMENT) && self.class == GUI_DEBUG_ONLY_ELEMENT
 
       Gosu.draw_line(
         x, y, @debug_color,
@@ -410,10 +411,14 @@ module CyberarmEngine
     end
 
     def scroll_width
-      @children.sum(&:outer_width)
+      return @cached_scroll_width if @cached_scroll_width && is_a?(Container)
+
+      @cached_scroll_width = @children.sum(&:outer_width)
     end
 
     def scroll_height
+      return @cached_scroll_height if @cached_scroll_height && is_a?(Container)
+
       if is_a?(CyberarmEngine::Element::Flow)
         return 0 if @children.size.zero?
 
@@ -434,18 +439,18 @@ module CyberarmEngine
 
         pairs_ << a_ unless pairs_.last == a_
 
-        pairs_.sum { |pair|  + @style.padding_top + @style.border_thickness_top + pair.map(&:outer_height).max } + @style.padding_bottom + @style.border_thickness_bottom
+        @cached_scroll_height = pairs_.sum { |pair|  + @style.padding_top + @style.border_thickness_top + pair.map(&:outer_height).max } + @style.padding_bottom + @style.border_thickness_bottom
       else
-        @style.padding_top + @style.border_thickness_top + @children.sum(&:outer_height) + @style.padding_bottom + @style.border_thickness_bottom
+        @cached_scroll_height = @style.padding_top + @style.border_thickness_top + @children.sum(&:outer_height) + @style.padding_bottom + @style.border_thickness_bottom
       end
     end
 
     def max_scroll_width
-      scroll_width - outer_width
+      (scroll_width - outer_width).positive? ? scroll_width - outer_width : scroll_width
     end
 
     def max_scroll_height
-      scroll_height - outer_height
+      (scroll_height - outer_height).positive? ? scroll_height - outer_height : scroll_height
     end
 
     def dimensional_size(size, dimension)
@@ -461,15 +466,13 @@ module CyberarmEngine
       if @parent && @style.fill &&
          (dimension == :width && @parent.is_a?(Flow) ||
           dimension == :height && @parent.is_a?(Stack))
-        return space_available_width - noncontent_width if dimension == :width && @parent.is_a?(Flow)
-        return space_available_height - noncontent_height if dimension == :height && @parent.is_a?(Stack)
-
-      # Handle min_width/height and max_width/height
-      else
-        return @style.send(:"min_#{dimension}") if @style.send(:"min_#{dimension}") && new_size.to_f < @style.send(:"min_#{dimension}")
-        return @style.send(:"max_#{dimension}") if @style.send(:"max_#{dimension}") && new_size.to_f > @style.send(:"max_#{dimension}")
+        new_size = space_available_width - noncontent_width if dimension == :width && @parent.is_a?(Flow)
+        new_size = space_available_height - noncontent_height if dimension == :height && @parent.is_a?(Stack)
       end
 
+      return @style.send(:"min_#{dimension}") if @style.send(:"min_#{dimension}") && new_size.to_f < @style.send(:"min_#{dimension}")
+      return @style.send(:"max_#{dimension}") if @style.send(:"max_#{dimension}") && new_size.to_f > @style.send(:"max_#{dimension}")
+
       new_size
     end
 
@@ -575,6 +578,20 @@ module CyberarmEngine
       @gui_state != nil
     end
 
+    def child_of?(element)
+      return element == self if is_root?
+      return false unless element.is_a?(Container)
+      return true if element.children.find { |child| child == self }
+
+      element.children.find { |child| child.child_of?(element) if child.is_a?(Container) }
+    end
+
+    # def parent_of?(element)
+    #   return true if element.children.find { |child| child == self }
+
+    #   element.children.find { |child| child.parent}
+    # end
+
     def focus(_)
       warn "#{self.class}#focus was not overridden!"
 

lib/cyberarm_engine/ui/elements/container.rb

@@ -20,7 +20,10 @@ module CyberarmEngine
         @gui_state = options.delete(:gui_state)
         super
 
+        @last_scroll_position = Vector.new(0, 0)
         @scroll_position = Vector.new(0, 0)
+        @scroll_target_position = Vector.new(0, 0)
+        @scroll_chunk = 120
         @scroll_speed = 40
 
         @text_color = options[:color]
@@ -33,17 +36,17 @@ module CyberarmEngine
       def build
         @block.call(self) if @block
 
-        root.gui_state.request_recalculate
+        root.gui_state.request_recalculate_for(self)
       end
 
       def add(element)
         @children << element
 
-        root.gui_state.request_recalculate
+        root.gui_state.request_recalculate_for(self)
       end
 
       def remove(element)
-        root.gui_state.request_recalculate if @children.delete(element)
+        root.gui_state.request_recalculate_for(self) if @children.delete(element)
       end
 
       def clear(&block)
@@ -56,7 +59,7 @@ module CyberarmEngine
 
         CyberarmEngine::Element::Container.current_container = old_container
 
-        root.gui_state.request_recalculate
+        root.gui_state.request_recalculate_for(self)
       end
 
       def append(&block)
@@ -67,7 +70,7 @@ module CyberarmEngine
 
         CyberarmEngine::Element::Container.current_container = old_container
 
-        root.gui_state.request_recalculate
+        root.gui_state.request_recalculate_for(self)
       end
 
       def render
@@ -77,7 +80,9 @@ module CyberarmEngine
           content_width + 1,
           content_height + 1
         ) do
-          @children.each(&:draw)
+          Gosu.translate(@scroll_position.x, @scroll_position.y) do
+            @children.each(&:draw)
+          end
         end
       end
 
@@ -90,35 +95,74 @@ module CyberarmEngine
       end
 
       def update
+        update_scroll
         @children.each(&:update)
       end
 
       def hit_element?(x, y)
         return unless hit?(x, y)
 
+        # Offset child hit point by scroll position/offset
+        child_x = x - @scroll_position.x
+        child_y = y - @scroll_position.y
+
         @children.reverse_each do |child|
           next unless child.visible?
 
           case child
           when Container
-            if element = child.hit_element?(x, y)
+            if element = child.hit_element?(child_x, child_y)
               return element
             end
           else
-            return child if child.hit?(x, y)
+            return child if child.hit?(child_x, child_y)
           end
         end
 
         self if hit?(x, y)
       end
 
+      def update_child_element_visibity(child)
+        child.element_visible = child.x >= (@x - @scroll_position.x) - child.width && child.x <= (@x - @scroll_position.x) + width &&
+                                child.y >= (@y - @scroll_position.y) - child.height && child.y <= (@y - @scroll_position.y) + height
+      end
+
+      def update_scroll
+        dt = window.dt > 1 ? 1.0 : window.dt
+
+        scroll_x_diff = (@scroll_target_position.x - @scroll_position.x)
+        scroll_y_diff = (@scroll_target_position.y - @scroll_position.y)
+
+        @scroll_position.x += (scroll_x_diff * @scroll_speed * 0.25 * dt).round
+        @scroll_position.y += (scroll_y_diff * @scroll_speed * 0.25 * dt).round
+
+        @scroll_position.x = @scroll_target_position.x if scroll_x_diff.abs < 1.0
+        @scroll_position.y = @scroll_target_position.y if scroll_y_diff.abs < 1.0
+
+        # Scrolled PAST top
+        if @scroll_position.y > 0
+          @scroll_target_position.y = 0
+
+        # Scrolled PAST bottom
+        elsif @scroll_position.y.abs > max_scroll_height
+          @scroll_target_position.y = -max_scroll_height
+        end
+
+        if @last_scroll_position != @scroll_position
+          @children.each { |child| update_child_element_visibity(child) }
+          root.gui_state.request_repaint
+        end
+
+        @last_scroll_position.x = @scroll_position.x
+        @last_scroll_position.y = @scroll_position.y
+      end
+
       def recalculate
         @current_position = Vector.new(@style.margin_left + @style.padding_left, @style.margin_top + @style.padding_top)
-        @current_position += @scroll_position
 
         return unless visible?
 
-        Stats.increment(:gui_recalculations_last_frame, 1)
+        Stats.frame.increment(:gui_recalculations)
 
         stylize
 
@@ -129,6 +173,9 @@ module CyberarmEngine
         old_width  = @width
         old_height = @height
 
+        @cached_scroll_width = nil
+        @cached_scroll_height = nil
+
         if is_root?
           @width  = @style.width  = window.width
           @height = @style.height = window.height
@@ -176,16 +223,28 @@ module CyberarmEngine
           child.recalculate
           child.reposition # TODO: Implement top,bottom,left,center, and right positioning
 
-          Stats.increment(:gui_recalculations_last_frame, 1)
+          Stats.frame.increment(:gui_recalculations)
 
-          child.element_visible = child.x >= @x - child.width && child.x <= @x + width &&
-                                  child.y >= @y - child.height && child.y <= @y + height
+          update_child_element_visibity(child)
         end
 
         # puts "TOOK: #{Gosu.milliseconds - s}ms to recalculate #{self.class}:0x#{self.object_id.to_s(16)}"
 
         update_background
 
+        # Fixes resized container scrolled past bottom
+        self.scroll_top = -@scroll_position.y
+        @scroll_target_position.y = @scroll_position.y
+
+        # NOTE: Experiment for removing need to explicitly call gui_state#recalculate at least 3 times for layout to layout...
+        if old_width != @width || old_height != @height
+          if @parent
+            root.gui_state.request_recalculate_for(@parent)
+          else
+            root.gui_state.request_recalculate
+          end
+        end
+
         root.gui_state.request_repaint if @width != old_width || @height != old_height
       end
 
@@ -246,12 +305,13 @@ module CyberarmEngine
       def mouse_wheel_up(sender, x, y)
         return unless @style.scroll
 
-        if @scroll_position.y < 0
-          @scroll_position.y += @scroll_speed
-          @scroll_position.y = 0 if @scroll_position.y > 0
-
-          root.gui_state.request_recalculate_for(self)
-          root.gui_state.request_repaint
+        # Allow overscrolling UP, only if one can scroll DOWN
+        if height < scroll_height
+          if @scroll_target_position.y > 0
+            @scroll_target_position.y = @scroll_chunk
+          else
+            @scroll_target_position.y += @scroll_chunk
+          end
 
           return :handled
         end
@@ -262,15 +322,13 @@ module CyberarmEngine
 
         return unless height < scroll_height
 
-        if @scroll_position.y.abs < max_scroll_height
-          @scroll_position.y -= @scroll_speed
-          @scroll_position.y = -max_scroll_height if @scroll_position.y.abs > max_scroll_height
-
-          root.gui_state.request_recalculate_for(self)
-          root.gui_state.request_repaint
-
-          return :handled
+        if @scroll_target_position.y > 0
+          @scroll_target_position.y = -@scroll_chunk
+        else
+          @scroll_target_position.y -= @scroll_chunk
         end
+
+        return :handled
       end
 
       def scroll_top

lib/cyberarm_engine/ui/elements/slider.rb

@@ -33,7 +33,8 @@ module CyberarmEngine
         end
       end
 
-      attr_reader :range, :step_size, :value
+      attr_reader :step_size, :value
+      attr_accessor :range, :step_size
 
       def initialize(options = {}, block = nil)
         super(options, block)
@@ -76,7 +77,7 @@ module CyberarmEngine
       def update
         super
 
-        @tip = value.to_s
+        @tip = format("%.2f", value.to_f)
         @handle.tip = @tip
       end
 
@@ -87,7 +88,7 @@ module CyberarmEngine
       end
 
       def handle_dragged_to(x, _y)
-        @ratio = ((x - @handle.width / 2) - @x) / (content_width - @handle.outer_width)
+        @ratio = ((x - @handle.width / 2.0) - @x) / (content_width - @handle.outer_width.to_f)
 
         self.value = @ratio.clamp(0.0, 1.0) * (@range.max - @range.min) + @range.min
       end

lib/cyberarm_engine/ui/elements/text_block.rb

@@ -18,6 +18,15 @@ module CyberarmEngine
         @raw_text = text
       end
 
+      def update
+        super
+
+        if @text.textobject.name != safe_style_fetch(:font)
+          set_font
+          root.gui_state.request_recalculate
+        end
+      end
+
       def render
         # Gosu.clip_to is too expensive to always use so check if we actually need it.
         if @text.width > width || @text.height > height
@@ -156,7 +165,7 @@ module CyberarmEngine
       end
 
       def line_width(text)
-        (@text.textobject.markup_width(text) + noncontent_width)
+        (@text.textobject.markup_width(text.to_s) + noncontent_width)
       end
 
       def value

lib/cyberarm_engine/ui/gui_state.rb

@@ -63,7 +63,8 @@ module CyberarmEngine
         @tip.draw
       end
 
-      if defined?(GUI_DEBUG)
+      # FIXME
+      if false# defined?(GUI_DEBUG)
         Gosu.flush
 
         @root_container.debug_draw
@@ -78,16 +79,22 @@ module CyberarmEngine
 
     def update
       if @pending_recalculate_request
-        @root_container.recalculate
-        @root_container.recalculate
+        Stats.frame.start_timing(:gui_recalculate)
         @root_container.recalculate
 
         @pending_recalculate_request = false
+
+        Stats.frame.end_timing(:gui_recalculate)
       end
 
+      Stats.frame.start_timing(:gui_element_recalculate_requests)
+
+      # puts "PENDING REQUESTS: #{@pending_element_recalculate_requests.size}" if @pending_element_recalculate_requests.size.positive?
       @pending_element_recalculate_requests.each(&:recalculate)
       @pending_element_recalculate_requests.clear
 
+      Stats.frame.end_timing(:gui_element_recalculate_requests)
+
       if @pending_focus_request
         @pending_focus_request = false
 
@@ -121,9 +128,9 @@ module CyberarmEngine
       @mouse_over.publish(:leave) if @mouse_over && new_mouse_over != @mouse_over
       @mouse_over = new_mouse_over
 
-      redirect_holding_mouse_button(:left) if @mouse_over && Gosu.button_down?(Gosu::MsLeft)
-      redirect_holding_mouse_button(:middle) if @mouse_over && Gosu.button_down?(Gosu::MsMiddle)
-      redirect_holding_mouse_button(:right) if @mouse_over && Gosu.button_down?(Gosu::MsRight)
+      redirect_holding_mouse_button(:left) if @mouse_over && Gosu.button_down?(Gosu::MS_LEFT)
+      redirect_holding_mouse_button(:middle) if @mouse_over && Gosu.button_down?(Gosu::MS_MIDDLE)
+      redirect_holding_mouse_button(:right) if @mouse_over && Gosu.button_down?(Gosu::MS_RIGHT)
 
       if Vector.new(window.mouse_x, window.mouse_y) == @last_mouse_pos
         if @mouse_over && (Gosu.milliseconds - @mouse_moved_at) > tool_tip_delay
@@ -151,13 +158,13 @@ module CyberarmEngine
       super
 
       case id
-      when Gosu::MsLeft
+      when Gosu::MS_LEFT
         redirect_mouse_button(:left)
-      when Gosu::MsMiddle
+      when Gosu::MS_MIDDLE
         redirect_mouse_button(:middle)
-      when Gosu::MsRight
+      when Gosu::MS_RIGHT
         redirect_mouse_button(:right)
-      when Gosu::KbF5
+      when Gosu::KB_F5
         request_recalculate
       end
 
@@ -168,15 +175,15 @@ module CyberarmEngine
       super
 
       case id
-      when Gosu::MsLeft
+      when Gosu::MS_LEFT
         redirect_released_mouse_button(:left)
-      when Gosu::MsMiddle
+      when Gosu::MS_MIDDLE
         redirect_released_mouse_button(:middle)
-      when Gosu::MsRight
+      when Gosu::MS_RIGHT
         redirect_released_mouse_button(:right)
-      when Gosu::MsWheelUp
+      when Gosu::MS_WHEEL_UP
         redirect_mouse_wheel(:up)
-      when Gosu::MsWheelDown
+      when Gosu::MS_WHEEL_DOWN
         redirect_mouse_wheel(:down)
       end
 
@@ -276,6 +283,8 @@ module CyberarmEngine
     def hide_menu
       return unless @menu
 
+      request_repaint
+
       @hid_menu_for = @menu.parent
       @menu = nil
     end

lib/cyberarm_engine/ui/style.rb

@@ -20,7 +20,8 @@ module CyberarmEngine
     attr_reader :hash
 
     def initialize(hash = {})
-      h = Marshal.load(Marshal.dump(hash))
+      h = hash
+      # h = Marshal.load(Marshal.dump(hash))
 
       h[:default] = {}
 

lib/cyberarm_engine/vector.rb

@@ -95,39 +95,58 @@ module CyberarmEngine
       Vector.new(@x, @y)
     end
 
-    # Performs math operation, excluding {weight}
-    private def operator(function, other)
-      if other.is_a?(Numeric)
-        Vector.new(
-          @x.send(:"#{function}", other),
-          @y.send(:"#{function}", other),
-          @z.send(:"#{function}", other)
-        )
-      else
-        Vector.new(
-          @x.send(:"#{function}", other.x),
-          @y.send(:"#{function}", other.y),
-          @z.send(:"#{function}", other.z)
-        )
-      end
-    end
-
     # Adds Vector and Numeric or Vector and Vector, excluding {weight}
     # @return [CyberarmEngine::Vector]
     def +(other)
-      operator("+", other)
+      if other.is_a?(Numeric)
+        Vector.new(
+          @x + other,
+          @y + other,
+          @z + other
+        )
+      else
+        Vector.new(
+          @x + other.x,
+          @y + other.y,
+          @z + other.z
+        )
+      end
     end
 
     # Subtracts Vector and Numeric or Vector and Vector, excluding {weight}
     # @return [CyberarmEngine::Vector]
     def -(other)
-      operator("-", other)
+      if other.is_a?(Numeric)
+        Vector.new(
+          @x - other,
+          @y - other,
+          @z - other
+        )
+      else
+        Vector.new(
+          @x - other.x,
+          @y - other.y,
+          @z - other.z
+        )
+      end
     end
 
     # Multiplies Vector and Numeric or Vector and Vector, excluding {weight}
     # @return [CyberarmEngine::Vector]
     def *(other)
-      operator("*", other)
+      if other.is_a?(Numeric)
+        Vector.new(
+          @x * other,
+          @y * other,
+          @z * other
+        )
+      else
+        Vector.new(
+          @x * other.x,
+          @y * other.y,
+          @z * other.z
+        )
+      end
     end
 
     def multiply_transform(transform)

lib/cyberarm_engine/window.rb

@@ -6,16 +6,16 @@ module CyberarmEngine
     SAMPLES = {}
     SONGS = {}
 
-    attr_accessor :show_cursor
+    attr_accessor :show_cursor, :show_stats_plotter
     attr_writer :exit_on_opengl_error
-    attr_reader :last_frame_time, :states
+    attr_reader :last_frame_time, :delta_time, :states
 
     def self.now
       Gosu.milliseconds
     end
 
     def self.dt
-      instance.last_frame_time / 1000.0
+      instance.dt
     end
 
     def self.instance=(window)
@@ -31,32 +31,57 @@ module CyberarmEngine
     def initialize(width: 800, height: 600, fullscreen: false, update_interval: 1000.0 / 60, resizable: false, borderless: false)
       @show_cursor = false
       @has_focus = false
+      @show_stats_plotter = false
 
       super(width, height, fullscreen: fullscreen, update_interval: update_interval, resizable: resizable, borderless: borderless)
       Window.instance = self
 
       @last_frame_time = Gosu.milliseconds - 1
       @current_frame_time = Gosu.milliseconds
-      self.caption = "CyberarmEngine #{CyberarmEngine::VERSION} #{Gosu.language}"
+      @delta_time = @last_frame_time
+      self.caption = "CyberarmEngine #{CyberarmEngine::VERSION} #{Gosu.user_languages.join(', ')}"
 
       @states = []
       @exit_on_opengl_error = false
       preload_default_shaders if respond_to?(:preload_default_shaders)
+      @stats_plotter = Stats::StatsPlotter.new(2, 28) # FIXME: Make positioning easy
 
-      setup if defined?(setup)
+      setup
+    end
+
+    def setup
     end
 
     def draw
+      Stats.frame.start_timing(:draw)
+
       current_state&.draw
+      Stats.frame.start_timing(:engine_stats_renderer)
+      @stats_plotter&.draw if @show_stats_plotter
+      Stats.frame.end_timing(:engine_stats_renderer)
+
+      Stats.frame.end_timing(:draw)
+      Stats.frame.start_timing(:interframe_sleep)
     end
 
     def update
-      Stats.clear
+      # Gosu calls update() then (optionally) draw(),
+      # so always end last frame and start next frame when update() is called.
+      Stats.frame&.end_timing(:interframe_sleep)
+      Stats.end_frame
 
-      current_state&.update
+      Stats.new_frame
+
+      @delta_time = (Gosu.milliseconds - @current_frame_time) * 0.001
 
       @last_frame_time = Gosu.milliseconds - @current_frame_time
       @current_frame_time = Gosu.milliseconds
+
+      Stats.frame.start_timing(:update)
+      current_state&.update
+      Stats.frame.end_timing(:update)
+
+      Stats.frame.start_timing(:interframe_sleep) unless needs_redraw?
     end
 
     def needs_cursor?
@@ -120,7 +145,7 @@ module CyberarmEngine
     def push_state(klass, options = {})
       options = { setup: true }.merge(options)
 
-      if klass.instance_of?(klass.class) && defined?(klass.options)
+      if klass.instance_of?(klass.class) && klass.respond_to?(:options)
         @states << klass
         klass.setup if options[:setup]
         klass.post_setup if options[:setup]
@@ -133,6 +158,8 @@ module CyberarmEngine
     end
 
     private def child_of?(input, klass)
+      return false unless input
+
       input.ancestors.detect { |c| c == klass }
     end
 

mrbgem.rake

@@ -0,0 +1,29 @@
+MRuby::Gem::Specification.new("mruby-cyberarm_engine") do |spec|
+  spec.license = "MIT"
+  spec.authors = "cyberarm"
+  spec.summary = " Yet another framework for building games with Gosu"
+
+  lib_rbfiles = []
+  # Dir.glob("#{File.expand_path("..", __FILE__)}/lib/**/*.rb").reject do |f|
+    # File.basename(f.downcase, ".rb") == "cyberarm_engine" ||
+    # File.basename(f.downcase, ".rb") == "opengl" ||
+    # f.downcase.include?("/opengl/")
+  # end.reverse!
+
+  local_path = File.expand_path("..", __FILE__)
+  File.read("#{local_path}/lib/cyberarm_engine.rb").each_line do |line|
+    line = line.strip
+
+    next unless line.start_with?("require_relative")
+
+    file = line.split("require_relative").last.strip.gsub("\"", "")
+
+    next if file.include?(" if ")
+
+    lib_rbfiles << "#{local_path}/lib/#{file}.rb"
+  end
+
+  pp lib_rbfiles
+
+  spec.rbfiles = lib_rbfiles
+end