From 421ae4f3898869ae41ccb7456cf1203eccf7cb04 Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Sat, 11 Jul 2015 22:43:09 -1000
Subject: [PATCH] Add scenegraph nodes for matrix rotate and depth test
 function.

---
 src/mcedit2/rendering/rendergraph.py | 28 ++++++++++++++++++++++++++++
 src/mcedit2/rendering/scenegraph.py  | 16 ++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/src/mcedit2/rendering/rendergraph.py b/src/mcedit2/rendering/rendergraph.py
index 1062bfc..0232e29 100644
--- a/src/mcedit2/rendering/rendergraph.py
+++ b/src/mcedit2/rendering/rendergraph.py
@@ -211,6 +211,26 @@ class TranslateRenderNode(RenderstateRenderNode):
         GL.glMatrixMode(GL.GL_MODELVIEW)
         GL.glPopMatrix()
 
+class RotateRenderNode(RenderstateRenderNode):
+    def __init__(self, sceneNode):
+        """
+
+        :type sceneNode: TranslateNode
+        """
+        super(RotateRenderNode, self).__init__(sceneNode)
+
+    def __repr__(self):
+        return "RotateRenderNode(%s, %s)" % (self.sceneNode.degrees,self.sceneNode.axis)
+
+    def enter(self):
+        GL.glMatrixMode(GL.GL_MODELVIEW)
+        GL.glPushMatrix()
+        GL.glRotate(self.sceneNode.degrees, *self.sceneNode.axis)
+
+    def exit(self):
+        GL.glMatrixMode(GL.GL_MODELVIEW)
+        GL.glPopMatrix()
+
 
 class PolygonModeRenderNode(RenderstateRenderNode):
     def enter(self):
@@ -327,6 +347,14 @@ class DepthMaskRenderNode(RenderstateRenderNode):
     def exit(self):
         GL.glPopAttrib()
 
+class DepthFuncRenderNode(RenderstateRenderNode):
+    def enter(self):
+        GL.glPushAttrib(GL.GL_DEPTH_BUFFER_BIT)
+        GL.glDepthFunc(self.sceneNode.func)
+
+    def exit(self):
+        GL.glPopAttrib()
+
 class BoxRenderNode(RenderNode):
     def drawSelf(self):
         box = self.sceneNode.box
diff --git a/src/mcedit2/rendering/scenegraph.py b/src/mcedit2/rendering/scenegraph.py
index 3c7d922..0a6bb79 100644
--- a/src/mcedit2/rendering/scenegraph.py
+++ b/src/mcedit2/rendering/scenegraph.py
@@ -179,12 +179,28 @@ class TranslateNode(Node):
         self._translateOffset = value
         self.dirty = True
 
+class RotateNode(Node):
+    RenderNodeClass = rendergraph.RotateRenderNode
+
+    def __init__(self, degrees, axis):
+        super(RotateNode, self).__init__()
+        self.degrees = degrees
+        self.axis = axis
+
+
 
 class DepthMaskNode(Node):
     RenderNodeClass = rendergraph.DepthMaskRenderNode
     mask = False
 
 
+class DepthFuncNode(Node):
+    RenderNodeClass = rendergraph.DepthFuncRenderNode
+
+    def __init__(self, func=GL.GL_LESS):
+        super(DepthFuncNode, self).__init__()
+        self.func = func
+
 class ClearNode(Node):
     RenderNodeClass = rendergraph.ClearRenderNode