modules/RenderEngine/src/init.lua

   1 RenderEngine:run("inputhandler")
   2 RenderEngine:run("shaders")
   3 RenderEngine:run("textures")
   4 RenderEngine:run("window")
   5
   6 RenderEngine.cube_vertices = RenderEngine:run("cube_vertices")
   7 RenderEngine.Mesh = RenderEngine:run("mesh")
   8 RenderEngine.ChunkMesh = RenderEngine:run("chunk_mesh")
   9 RenderEngine.camera = RenderEngine:run("camera")
  10
  11 function RenderEngine:init()
  12         self:init_glfw()
  13         self:create_window()
  14         self:init_glew()
  15         self:load_shaders()
  16         self:set_sky("#FFFFFF")
  17         self:add_render_task()
  18 end
  19
  20 function RenderEngine:init_glew()
  21         gl.init()
  22 end
  23
  24 function RenderEngine:add_render_task()
  25         Dragonblocks:add_task(function()
  26                 self:render_loop()
  27         end)
  28 end
  29
  30 function RenderEngine:render_loop(is_only_task)
  31         self.last_time = glfw.get_time()
  32         repeat
  33                 self:render()
  34                 if not is_only_task then
  35                         coroutine.yield()
  36                 end
  37         until glfw.window_should_close(self.window)
  38         os.exit()
  39 end
  40
  41 function RenderEngine:update_projection_matrix()
  42         gl.uniform_matrix4f(gl.get_uniform_location(self.shaders, "projection"), true, glm.perspective(math.rad(self.fov), self.window_width / self.window_height, 0.0001, 100))
  43 end
  44
  45 function RenderEngine:update_view_matrix()
  46         gl.uniform_matrix4f(gl.get_uniform_location(self.shaders, "view"), true, self.camera:get_view_matrix())
  47 end
  48
  49 function RenderEngine:render()
  50         local dtime = glfw.get_time() - self.last_time
  51         self.last_time = glfw.get_time()
  52
  53         self:process_input(dtime)
  54
  55         gl.clear_color(self.sky)
  56         gl.enable("depth test")
  57         gl.clear("color", "depth")
  58
  59         gl.use_program(self.shaders)
  60
  61         self:update_view_matrix()
  62
  63         for _, mesh in ipairs(self.Mesh.list) do
  64                 mesh:render(dtime)
  65         end
  66
  67         glfw.swap_buffers(self.window)
  68         glfw.poll_events()
  69 end
  70
  71 function RenderEngine:set_sky(htmlcolor)
  72         local r, g, b = hex2rgb(htmlcolor)
  73         self.sky = {r, g, b, 1.0}
  74 end
  75
  76 function RenderEngine:set_wireframe(v)
  77         gl.polygon_mode("front and back", (v and "line" or "fill"))
  78 end