scene: fix light object usage in various demos and example programs.

demos/tutorial/05_easymesh.cpp

@@ -55,14 +55,16 @@ public:
 
         /* Add a white directional light */
         m_light1 = new Light();
-        m_light1->SetPosition(vec4(0.2f, 0.2f, 0.f, 0.f));
+        m_light1->SetPosition(vec3(0.2f, 0.2f, 0.f));
         m_light1->SetColor(vec4(0.5f, 0.5f, 0.5f, 1.f));
+        m_light1->SetType(LightType::Directional);
         Ticker::Ref(m_light1);
 
         /* Add an orangeish point light */
         m_light2 = new Light();
-        m_light2->SetPosition(vec4(-15.f, 15.f, 15.f, 1.f));
+        m_light2->SetPosition(vec3(-15.f, 15.f, 15.f));
         m_light2->SetColor(vec4(0.4f, 0.3f, 0.2f, 1.f));
+        m_light2->SetType(LightType::Point);
         Ticker::Ref(m_light2);
 
         m_ready = false;

src/light.h

@@ -16,6 +16,8 @@
 #if !defined __LIGHT_H__
 #define __LIGHT_H__
 
+#include <cfloat> /* for FLT_MAX */
+
 #include "worldentity.h"
 
 namespace lol

test/btphystest.cpp

@@ -113,14 +113,16 @@ void BtPhysTest::InitApp()
 
     /* Add a white directional light */
     m_light1 = new Light();
-    m_light1->SetPosition(vec4(0.2f, 0.2f, 0.f, 0.f));
+    m_light1->SetPosition(vec3(0.2f, 0.2f, 0.f));
     m_light1->SetColor(vec4(0.5f, 0.5f, 0.5f, 1.f));
+    m_light1->SetType(LightType::Directional);
     Ticker::Ref(m_light1);
 
     /* Add an orangeish point light */
     m_light2 = new Light();
-    m_light2->SetPosition(vec4(-15.f, 15.f, 15.f, 1.f));
+    m_light2->SetPosition(vec3(-15.f, 15.f, 15.f));
     m_light2->SetColor(vec4(0.4f, 0.3f, 0.2f, 1.f));
+    m_light2->SetType(LightType::Point);
     Ticker::Ref(m_light2);
 
     float offset = 29.5f;

test/nacl_phystest.cpp

@@ -59,14 +59,16 @@ Nacl_PhysTest::Nacl_PhysTest(bool editor)
 
     /* Add a white directional light */
     m_light1 = new Light();
-    m_light1->SetPosition(vec4(0.2f, 0.2f, 0.f, 0.f));
+    m_light1->SetPosition(vec3(0.2f, 0.2f, 0.f));
     m_light1->SetColor(vec4(0.5f, 0.5f, 0.5f, 1.f));
+    m_light1->SetType(LightType::Directional);
     Ticker::Ref(m_light1);
 
     /* Add an orangeish point light */
     m_light2 = new Light();
-    m_light2->SetPosition(vec4(-15.f, 15.f, 15.f, 1.f));
+    m_light2->SetPosition(vec3(-15.f, 15.f, 15.f));
     m_light2->SetColor(vec4(0.4f, 0.3f, 0.2f, 1.f));
+    m_light2->SetType(LightType::Point);
     Ticker::Ref(m_light2);
 }