more minor ui

src/main/java/xyz/valnet/hadean/gameobjects/Camera.java

@@ -7,6 +7,7 @@ import java.util.List;
 import xyz.valnet.engine.App;
 import xyz.valnet.engine.graphics.Drawing;
 import xyz.valnet.engine.graphics.Sprite;
+import xyz.valnet.engine.graphics.Tile9;
 import xyz.valnet.engine.math.Vector2f;
 import xyz.valnet.engine.math.Vector2i;
 import xyz.valnet.engine.math.Vector4f;
@@ -83,6 +84,7 @@ public class Camera extends GameObject implements ITransient, IMouseCaptureArea
     return screen2world(pos.x, pos.y);
   }
 
+  // !! this takes an AABB and returns and AABB
   public Vector4f world2screen(Vector4f input) {
     return new Vector4f(
       input.x * tileWidth + screenWidth / 2 - focus.x * tileWidth,
@@ -122,6 +124,12 @@ public class Camera extends GameObject implements ITransient, IMouseCaptureArea
     Drawing.drawSprite(sprite, (int)(screenPos.x), (int)(screenPos.y), (int)(tileWidth * w), (int)(tileWidth * h));
   }
 
+  public void draw(float layer, Tile9 sprite, float x, float y, float w, float h) {
+    Vector2i screenPos = world2screen(x, y);
+    Drawing.setLayer(layer + (((y + h) - minY) / (maxY - minY)));
+    sprite.draw((int)(screenPos.x), (int)(screenPos.y), (int)(tileWidth * w), (int)(tileWidth * h));
+  }
+
   public void drawProgressBar(float progress, Vector4f worldBox) {
     int h = 6;
     Vector4i box = world2screen(worldBox).toXYWH().asInt();

src/main/java/xyz/valnet/hadean/gameobjects/ui/HoverQuery.java

@@ -13,6 +13,7 @@ import xyz.valnet.hadean.HadeanGame;
 import xyz.valnet.hadean.gameobjects.BottomBar;
 import xyz.valnet.hadean.gameobjects.Camera;
 import xyz.valnet.hadean.gameobjects.Tile;
+import xyz.valnet.hadean.gameobjects.inputlayer.SelectionLayer;
 import xyz.valnet.hadean.gameobjects.worldobjects.WorldObject;
 import xyz.valnet.hadean.util.Assets;
 import xyz.valnet.hadean.util.Layers;
@@ -21,12 +22,20 @@ public class HoverQuery extends GameObject implements ITransient {
 
   private Camera camera;
 
+  private boolean visible = true;
+
   @Override
   protected void connect() {
     super.connect();
     camera = get(Camera.class);
   }
-
+  
+  @Override
+  protected void start() {
+    get(SelectionLayer.class).subscribe((selected) -> {
+      visible = selected.size() == 0;
+    });
+  }
   private List<String> thingStrings = new ArrayList<String>();
 
   @Override
@@ -53,12 +62,13 @@ public class HoverQuery extends GameObject implements ITransient {
   
   @Override
   public void render() {
+    if(!visible) return;
     Drawing.setLayer(Layers.LOW_PRIORITY_UI);
-    int i = 576 - BottomBar.bottomBarHeight - 32;
+    int i = 576 - BottomBar.bottomBarHeight - 24;
     for(String thingString : thingStrings) {
       for(String str : thingString.split("\n")) {
-        Assets.font.drawString(str, 16, i);
-        i -= 14;
+        Assets.font.drawStringOutlined(str, 8, i);
+        i -= 16;
       }
     }
   }

src/main/java/xyz/valnet/hadean/gameobjects/ui/tabs/BuildTab.java

@@ -117,7 +117,9 @@ public class BuildTab extends Tab implements ISelectionChangeListener, IMouseCap
       Assets.flat.pushColor(new Vector4f(1f, 1f, 1f, 1.0f));
       Vector2i topLeft = camera.world2screen(x, y);
       Assets.font.drawString(selectedBuildable.name, topLeft.x, topLeft.y - 20);
-      Assets.flat.swapColor(new Vector4f(1f, 1f, 1f, 0.5f));
+      Assets.flat.swapColor(new Vector4f(1f, 1f, 1f, 0.6f));
+      camera.draw(Layers.BUILD_INTERACTABLE, Assets.selectionFrame, x, y, w, h);
+      Assets.flat.swapColor(new Vector4f(1f, 1f, 1f, 0.35f));
       for(int i = 0; i < w; i ++) for(int j = 0; j < h; j ++) {{
         camera.draw(Layers.BUILD_INTERACTABLE, Assets.checkerBoard, x + i, y + j);
       }}

src/main/java/xyz/valnet/hadean/interfaces/ISelectionChangeListener.java

@@ -1,7 +1,9 @@
 package xyz.valnet.hadean.interfaces;
 
+import java.io.Serializable;
 import java.util.List;
 
-public interface ISelectionChangeListener {
+@FunctionalInterface
+public interface ISelectionChangeListener extends Serializable {
   public void selectionChanged(List<ISelectable> selected);
 }