From 87236ee78078566205da2f80bd8776a336d4050a Mon Sep 17 00:00:00 2001
From: Eduardo Bart <edub4rt@gmail.com>
Date: Mon, 30 Jan 2012 01:27:25 -0200
Subject: [PATCH] add missing shader

---
 modules/game_shaders/item.frag    | 25 +++++++++++++++++++++++++
 src/framework/net/inputmessage.h  |  2 +-
 src/framework/net/outputmessage.h |  2 +-
 src/framework/net/protocol.cpp    |  4 ++--
 4 files changed, 29 insertions(+), 4 deletions(-)
 create mode 100644 modules/game_shaders/item.frag

diff --git a/modules/game_shaders/item.frag b/modules/game_shaders/item.frag
new file mode 100644
index 00000000..21b38039
--- /dev/null
+++ b/modules/game_shaders/item.frag
@@ -0,0 +1,25 @@
+uniform float opacity; // painter opacity
+uniform vec4 color; // painter color
+uniform float time; // time in seconds since shader linkage
+uniform sampler2D texture; // map texture
+varying vec2 textureCoords; // map texture coords
+
+void main()
+{
+    vec4 outColor = texture2D(texture, textureCoords) * opacity;
+    /*
+    float refinement = 0;
+    if(refinement > 0) {
+        vec4 sum = vec4(0.0, 0.0, 0.0, 0.0);
+        for(int i=-1;i<=1;++i) {
+            for(int j=-1;j<=1;++j) {
+                vec4 pixel = texture2D(texture, textureCoords + vec2(i,j)*(1.0/32.0));
+                sum += pixel * (1.0/9.0) * pixel.a * (0.5 + (pixel.r + pixel.g + pixel.b)/3.0);
+            }
+        }
+        float factor = refinement*((1.0 + sin(time*2))/2.0);
+        outColor += sum * sum * factor;
+    }
+    */
+    gl_FragColor = outColor;
+}
diff --git a/src/framework/net/inputmessage.h b/src/framework/net/inputmessage.h
index 7ec65af9..31fa13d9 100644
--- a/src/framework/net/inputmessage.h
+++ b/src/framework/net/inputmessage.h
@@ -33,7 +33,7 @@ public:
         BUFFER_MAXSIZE = 16384,
         HEADER_POS = 0,
         HEADER_LENGTH = 2,
-        CHECKSUm_position = 2,
+        CHECKSUM_POS = 2,
         CHECKSUM_LENGTH = 4,
         DATA_POS = 6,
         UNENCRYPTED_DATA_POS = 8
diff --git a/src/framework/net/outputmessage.h b/src/framework/net/outputmessage.h
index 5ce61de4..bdc72309 100644
--- a/src/framework/net/outputmessage.h
+++ b/src/framework/net/outputmessage.h
@@ -36,7 +36,7 @@ public:
         BUFFER_MAXSIZE = 1024,
         HEADER_POS = 0,
         HEADER_LENGTH = 2,
-        CHECKSUm_position = 2,
+        CHECKSUM_POS = 2,
         CHECKSUM_LENGTH = 4,
         DATA_POS = 6
     };
diff --git a/src/framework/net/protocol.cpp b/src/framework/net/protocol.cpp
index 0c20b765..e17471ee 100644
--- a/src/framework/net/protocol.cpp
+++ b/src/framework/net/protocol.cpp
@@ -71,7 +71,7 @@ void Protocol::send(OutputMessage& outputMessage)
 
     // set checksum
     uint32 checksum = getAdlerChecksum(outputMessage.getBuffer() + OutputMessage::DATA_POS, outputMessage.getMessageSize());
-    outputMessage.setWritePos(OutputMessage::CHECKSUm_position);
+    outputMessage.setWritePos(OutputMessage::CHECKSUM_POS);
     outputMessage.addU32(checksum);
 
     // set size
@@ -107,7 +107,7 @@ void Protocol::internalRecvHeader(uint8* buffer, uint16 size)
 
 void Protocol::internalRecvData(uint8* buffer, uint16 size)
 {
-    memcpy(m_inputMessage.getBuffer() + InputMessage::CHECKSUm_position, buffer, size);
+    memcpy(m_inputMessage.getBuffer() + InputMessage::CHECKSUM_POS, buffer, size);
 
     if(m_checksumEnabled) {
         uint32 checksum = getAdlerChecksum(m_inputMessage.getBuffer() + InputMessage::DATA_POS, m_inputMessage.getMessageSize() - InputMessage::CHECKSUM_LENGTH);