gui: more xml and lua support

res/layouts/inventory.xml

@@ -1,10 +1,26 @@
-<inventory color="#1F1F1FE0" size="0,400">
+<inventory color="#1F1F1FE0" size="0,600">
     <slots-grid rows="4" count="40" sharefunc="inventory_share_func"/>
-    <button id="btn" 
-            coord="8,300" 
-            size="140,30" 
-            z-index="1" 
-            onclick="document.btn.text = tostring(time.uptime())">
-            -----
-    </button>
+    <panel coord="10,230" padding="4,4,4,4" size="300,100">
+        <label>fps: 62 / 59</label>
+        <label>meshes: 4143</label>
+        <label>frustum-culling: on</label>
+        <label>chunks: 3206 visible: 1153</label>
+        <label>block: 0 0 (core:air)</label>
+        <label>seed: 42</label>
+        <container size="200,30">
+            <label size="100,30">x:</label>
+            <textbox coord="40,0">4321.40</textbox>
+        </container>
+        <container size="200,30">
+            <label size="100,30">y:</label>
+            <textbox coord="40,0">120.0</textbox>
+        </container>
+        <container size="200,30">
+            <label size="100,30">z:</label>
+            <textbox coord="40,0">-424.10</textbox>
+        </container>
+        <label>time: 19:50</label>
+        <trackbar min="0.0" max="1.0" step="0.005f" track-width="8" consumer="time_change"/>
+        <trackbar min="0.0" max="1.0" step="0.005f" value="0.5" track-width="8"/>
+    </panel>
 </inventory>

res/layouts/inventory.xml.lua

@@ -9,3 +9,7 @@ end
 function inventory_share_func(invid, slotid)
     inventory.set(invid, slotid, 0, 0)
 end
+
+function time_change(x)
+    world.set_day_time(x)
+end