Split up Renderer into OpenGL and BoundBox renderers, rotate Player nameplate 180d

2025-12-15 15:42:35 +00:00 · 2018-09-20 09:47:09 -05:00
parent 35b5ee948a
commit a5b2ab7992
6 changed files with 291 additions and 248 deletions
--- a/lib/renderer/opengl_renderer.rb
+++ b/lib/renderer/opengl_renderer.rb
@@ -0,0 +1,91 @@
+class IMICFPS
+  class OpenGLRenderer
+    include OpenGL
+    include GLU
+
+    def initialize
+    end
+
+    def handleGlError
+      e = glGetError()
+      if e != GL_NO_ERROR
+        $stderr.puts "OpenGL error in: #{gluErrorString(e)} (#{e})\n"
+        exit
+      end
+    end
+
+    def draw_object(object)
+      handleGlError
+
+      glEnable(GL_NORMALIZE)
+      glPushMatrix
+      # Render bounding boxes before transformation is applied
+      create_bounding_box(object, object.model.bounding_box) if $debug
+      object.model.objects.each {|o| create_bounding_box(object, o.bounding_box, o.debug_color)} if $debug
+
+      glTranslatef(object.x, object.y, object.z)
+      glRotatef(object.x_rotation,1.0, 0, 0)
+      glRotatef(object.y_rotation,0, 1.0, 0)
+      glRotatef(object.z_rotation,0, 0, 1.0)
+
+      handleGlError
+
+      draw_mesh(object.model)
+      object.draw
+
+      handleGlError
+
+      glPopMatrix
+      handleGlError
+    end
+
+    def draw_mesh(model)
+      model.objects.each_with_index do |o, i|
+        glEnable(GL_CULL_FACE) if model.game_object.backface_culling
+        glEnable(GL_COLOR_MATERIAL)
+        glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE)
+        glShadeModel(GL_FLAT) unless o.faces.first[4]
+        glShadeModel(GL_SMOOTH) if o.faces.first[4]
+        glEnableClientState(GL_VERTEX_ARRAY)
+        glEnableClientState(GL_COLOR_ARRAY)
+        glEnableClientState(GL_NORMAL_ARRAY)
+        if model.model_has_texture
+          glEnable(GL_TEXTURE_2D)
+          glBindTexture(GL_TEXTURE_2D, model.materials[model.textured_material].texture_id)
+          glEnableClientState(GL_TEXTURE_COORD_ARRAY)
+          glTexCoordPointer(3, GL_FLOAT, 0, o.flattened_textures)
+        end
+        glVertexPointer(4, GL_FLOAT, 0, o.flattened_vertices)
+        glColorPointer(3, GL_FLOAT, 0, o.flattened_materials)
+        glNormalPointer(GL_FLOAT, 0, o.flattened_normals)
+
+        glDrawArrays(GL_TRIANGLES, 0, o.flattened_vertices_size/4)
+
+        if $debug
+          glDisable(GL_LIGHTING)
+          glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
+          glPolygonOffset(2, 0.5)
+          glLineWidth(3)
+          glDrawArrays(GL_TRIANGLES, 0, o.flattened_vertices_size/4)
+          glLineWidth(1)
+          glPolygonOffset(0, 0)
+          glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)
+          glEnable(GL_LIGHTING)
+        end
+
+        glDisableClientState(GL_VERTEX_ARRAY)
+        glDisableClientState(GL_COLOR_ARRAY)
+        glDisableClientState(GL_NORMAL_ARRAY)
+        if model.model_has_texture
+          glDisableClientState(GL_TEXTURE_COORD_ARRAY)
+          # glBindTexture(GL_TEXTURE_2D, 0)
+          glDisable(GL_TEXTURE_2D)
+        end
+        glDisable(GL_CULL_FACE) if model.game_object.backface_culling
+        glDisable(GL_COLOR_MATERIAL)
+      end
+
+      $window.number_of_faces+=model.faces.size
+    end
+  end
+end