Getting shaders working with lua.

assets/scene/minesweeper.lua

@@ -9,6 +9,7 @@ module('text')
 module('tileset')
 module('texture')
 module('input')
+module('shader')
 
 CELL_STATE_DEFAULT = 0
 CELL_STATE_HOVER = 1
@@ -179,19 +180,23 @@ end
 
 function sceneUpdate()
   x = x + inputAxis(INPUT_ACTION_LEFT, INPUT_ACTION_RIGHT)
-  y = y + inputAxis(INPUT_ACTION_UP, INPUT_ACTION_DOWN)
+  y = y - inputAxis(INPUT_ACTION_UP, INPUT_ACTION_DOWN)
 end
 
-
 function sceneRender()
   -- Update camera
-  cameraPushMatrix(camera)
   camera.bottom = screenGetHeight()
   camera.right = screenGetWidth()
 
+  shaderBind(SHADER_UNLIT)
+  proj = cameraGetProjectionMatrix(camera)
+  shaderSetMatrix(SHADER_UNLIT, SHADER_UNLIT_PROJECTION, proj)
+  view = cameraGetViewMatrix(camera)
+  shaderSetMatrix(SHADER_UNLIT, SHADER_UNLIT_VIEW, view)
+
   spriteBatchPush(
-    nil,
-    x, y, x + 32, y + 32,
+    x, y,
+    x + 32, y + 32,
     colorWhite()
   )
 
@@ -251,6 +256,4 @@ function sceneRender()
   --   end
   -- end
   spriteBatchFlush()
-
-  cameraPopMatrix()
 end