Lightmap.get/MapLayer.get are now nullable, better overworld generator with Joise, still needs fix in the dirt layer part.

Former-commit-id: 0a5fa31bab45d093771ca109adbeb9c07fb8e90e
Former-commit-id: d8a2b5b77a36b6c742cf220b2d325895111c8f3a

res/raw/creatures/CreatureHuman.json

@@ -0,0 +1,28 @@
+{
+  "racename" : "CONTEXT_RACE_HUMAN",
+  "racenameplural" : "CONTEXT_RACE_HUMAN_PLURAL",
+  "baseheight" : 40,
+  "basemass" : 60.0,
+
+  "strength" : 1000,
+  "strengthmult" : [100,100,100,100,100,100,100],
+
+  "accel" : 0.32,
+
+  "speed" : 3.0,
+  "speedmult" : [100,100,100,100,100,100,100],
+
+  "jumppower" : 5,
+  "jumppowermult" : [100,100,100,100,100,100,100],
+
+  "scale" : 1,
+  "scalemult" : [100,100,100,100,100,100,100],
+
+  "encumbrance" : 1000,
+  "basedefence" : "work in progress",
+
+  "toolsize" : 15,
+  
+  "intelligent" : true
+
+}