add missing shader

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;
+}

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

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
     };

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);