lib/gamnit/depth/depth.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Framework for 3D games in Nit
  16 module depth
  17
  18 intrude import more_materials
  19 import more_models
  20
  21 redef class App
  22
  23         redef fun on_create
  24         do
  25                 super
  26
  27                 # Move the camera back a bit
  28                 world_camera.reset_height(10.0)
  29                 world_camera.near = 0.1
  30
  31                 # Prepare programs
  32                 var program = versatile_program
  33                 program.compile_and_link
  34                 var gamnit_error = program.error
  35                 assert gamnit_error == null else print_error gamnit_error
  36
  37                 program = normals_program
  38                 normals_program.compile_and_link
  39                 gamnit_error = program.error
  40                 assert gamnit_error == null else print_error gamnit_error
  41         end
  42
  43         redef fun frame_core_draw(display) do frame_core_depth display
  44
  45         # Draw all elements of `actors` and then call `frame_core_flat`
  46         protected fun frame_core_depth(display: GamnitDisplay)
  47         do
  48                 # Update cameras on both our programs
  49                 versatile_program.use
  50                 versatile_program.mvp.uniform world_camera.mvp_matrix
  51
  52                 normals_program.use
  53                 normals_program.mvp.uniform app.world_camera.mvp_matrix
  54
  55                 for actor in actors do
  56                         for leaf in actor.model.leaves do
  57                                 leaf.material.draw(actor, leaf)
  58                         end
  59                 end
  60
  61                 frame_core_flat display
  62         end
  63 end