lib/gamnit: add a non-null display argument to frame_core

[nit.git] / lib / gamnit / examples / triangle / src / portable_triangle.nit

diff --git a/lib/gamnit/examples/triangle/src/portable_triangle.nit b/lib/gamnit/examples/triangle/src/portable_triangle.nit
index 8903c9c..9dfa49c 100644 (file)
--- a/lib/gamnit/examples/triangle/src/portable_triangle.nit
+++ b/lib/gamnit/examples/triangle/src/portable_triangle.nit
@@ -105,25 +105,22 @@ redef class App
 
        private var t = 0.0
 
-       redef fun frame_core
+       redef fun frame_core(display)
        do
-               var display = display
-               if display != null then
-                       glClearColor(t, t, t, 1.0)
+               glClearColor(t, t, t, 1.0)
 
-                       assert glGetError == gl_NO_ERROR
-                       glViewport(0, 0, display.width, display.height)
-                       glClear gl_COLOR_BUFFER_BIT
-                       glUseProgram program
-                       vertex_array.enable
+               assert glGetError == gl_NO_ERROR
+               glViewport(0, 0, display.width, display.height)
+               glClear gl_COLOR_BUFFER_BIT
+               glUseProgram program
+               vertex_array.enable
 
-                       glDrawArrays(gl_TRIANGLES, 0, 3)
+               glDrawArrays(gl_TRIANGLES, 0, 3)
 
-                       display.flip
+               display.flip
 
-                       t += 0.01
-                       if t > 1.0 then t = 0.0
-               end
+               t += 0.01
+               if t > 1.0 then t = 0.0
        end
 
        redef fun on_stop