Merge pull request #737 from myk002/myk_drawbuffer

udpate building_drawbuffer

Author: myk002

df.buildings.xml

@@ -249,13 +249,14 @@
     </struct-type>
 
     <struct-type type-name='building_drawbuffer'>
-        <static-array name='texpos1' count='32'>
+        <static-array name='signpost_texpos' type-name='int32_t' count='31'/>
+        <static-array name='building_one_texpos' count='31'>
             <static-array count='31' type-name='int32_t'/>
         </static-array>
-        <static-array name='texpos2' count='31'>
+        <static-array name='item_texpos' count='31'>
             <static-array count='31' type-name='int32_t'/>
         </static-array>
-        <static-array name='texpos3' count='31'>
+        <static-array name='building_two_texpos' count='31'>
             <static-array count='31' type-name='int32_t'/>
         </static-array>
         <static-array name='tile' count='31'>
@@ -485,7 +486,7 @@
                 <pointer name='buffer' type-name='building_drawbuffer'/>
             </vmethod>
             <vmethod name='drawBuilding'>
-                <int32_t name='unk_item'/>
+                <uint32_t name='curtick'/>
                 <pointer name='buffer' type-name='building_drawbuffer'/>
                 <int16_t name='z_offset' comment='building_wellst only'/>
             </vmethod>