town generates a structure

docs/src/progress/renderertodo.md

@@ -1920,6 +1920,7 @@ Macro data blocks terrain and block generation until it is ready
 Content generation blocks for macro data generation
 Roads block content generation
 Properly layout roads along town points in TownLayout
+Town generates a structure -- scaffolding for doing it across roads
 
 
 

src/main/java/electrosphere/data/struct/StructureData.java

@@ -2,6 +2,9 @@ package electrosphere.data.struct;
 
 import org.joml.Vector3d;
 
+import electrosphere.data.block.fab.BlockFab;
+import electrosphere.util.annotation.Exclude;
+
 /**
  * Data about a structure
  */
@@ -22,6 +25,12 @@ public class StructureData {
      */
     String fabPath;
 
+    /**
+     * The actually loaded fab
+     */
+    @Exclude
+    BlockFab fab;
+
     /**
      * The dimensions of the structure
      */
@@ -103,6 +112,22 @@ public class StructureData {
     public void setPlacementOffset(Vector3d placementOffset) {
         this.placementOffset = placementOffset;
     }
+
+    /**
+     * Gets the fab
+     * @return The fab
+     */
+    public BlockFab getFab(){
+        return fab;
+    }
+
+    /**
+     * Sets the fab
+     * @param fab The fab
+     */
+    public void setFab(BlockFab fab){
+        this.fab = fab;
+    }
     
 
 }

src/main/java/electrosphere/data/struct/StructureDataLoader.java

@@ -9,6 +9,7 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 
+import electrosphere.data.block.fab.BlockFab;
 import electrosphere.util.FileUtils;
 
 /**
@@ -96,6 +97,7 @@ public class StructureDataLoader {
         List<StructureData> typeList = StructureDataLoader.recursiveReadStructureLoader(rVal, initialPath);
         for(StructureData type : typeList){
             rVal.putType(type.getId(), type);
+            type.setFab(BlockFab.read(FileUtils.getAssetFile(type.getFabPath())));
         }
         return rVal;
     }

src/main/java/electrosphere/server/macro/MacroData.java

@@ -21,6 +21,7 @@ import electrosphere.util.FileUtils;
 
 import java.util.Random;
 
+import org.joml.AABBd;
 import org.joml.Vector3d;
 
 /**
@@ -301,6 +302,23 @@ public class MacroData {
         rVal.addAll(this.towns);
         return rVal;
     }
+
+    /**
+     * Checks if the aabb intersects any existing structs
+     * @param aabb The aabb
+     * @return true if it intersects any existing structs, false otheriwse
+     */
+    public boolean intersectsStruct(AABBd aabb){
+        List<MacroAreaObject> areaObjs = new LinkedList<MacroAreaObject>();
+        areaObjs.addAll(this.roads);
+        areaObjs.addAll(this.structures);
+        for(MacroAreaObject areaObj : areaObjs){
+            if(areaObj.getAABB().testAABB(aabb)){
+                return true;
+            }
+        }
+        return false;
+    }
     
     /**
      * Describes the world

src/main/java/electrosphere/server/macro/structure/VirtualStructure.java

@@ -60,6 +60,7 @@ public class VirtualStructure implements MacroAreaObject {
     public static VirtualStructure createStructure(MacroData macroData, StructureData data, Vector3d position){
         VirtualStructure rVal = new VirtualStructure();
         rVal.fabPath = data.getFabPath();
+        rVal.fab = data.getFab();
         rVal.type = data.getId();
         rVal.position = position;
         rVal.aabb = new AABBd(new Vector3d(position), new Vector3d(position).add(data.getDimensions()));

src/main/java/electrosphere/server/macro/town/TownLayout.java

@@ -4,6 +4,7 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.stream.Collectors;
 
+import org.joml.AABBd;
 import org.joml.Vector3d;
 import org.joml.Vector3i;
 
@@ -15,6 +16,7 @@ import electrosphere.server.macro.MacroData;
 import electrosphere.server.macro.civilization.Civilization;
 import electrosphere.server.macro.civilization.road.Road;
 import electrosphere.server.macro.race.Race;
+import electrosphere.server.macro.structure.VirtualStructure;
 import electrosphere.util.math.VoronoiUtils;
 
 /**
@@ -88,6 +90,16 @@ public class TownLayout {
 
         //up-facing road
         Road.createRoad(macroData, upNodeLoc, centerNodeLoc);
+        //generate structures along the road
+        StructureData structureData = allowedStructures.get(0);
+        Vector3d pos = new Vector3d(centerNodeLoc).add(10,0,10);
+        pos.y = realm.getServerWorldData().getServerTerrainManager().getElevation(pos);
+        AABBd aabb = new AABBd();
+        aabb.setMin(pos);
+        aabb.setMax(new Vector3d(pos).add(structureData.getDimensions()));
+        if(!macroData.intersectsStruct(aabb)){
+            VirtualStructure.createStructure(macroData, structureData, pos);
+        }
 
         //right-facing road
         Road.createRoad(macroData, rightNodeLoc, centerNodeLoc);