Hover unit stuff

core/src/mindustry/entities/part/HoverPart.java

@@ -0,0 +1,56 @@
+package mindustry.entities.part;
+
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.util.*;
+
+public class HoverPart extends DrawPart{
+    public float radius = 4f;
+    public float x, y, rotation, phase = 50f, stroke = 3f, minStroke = 0.12f;
+    public int circles = 2;
+    public Color color = Color.white;
+    public boolean mirror = false;
+    public float layer = -1f, layerOffset = 0f;
+
+    @Override
+    public void draw(PartParams params){
+        float z = Draw.z();
+        if(layer > 0) Draw.z(layer);
+        if(under && turretShading) Draw.z(z - 0.0001f);
+
+        Draw.z(Draw.z() + layerOffset);
+
+        int len = mirror && params.sideOverride == -1 ? 2 : 1;
+
+        Draw.color(color);
+
+
+        for(int c = 0; c < circles; c++){
+            float fin = ((Time.time / phase + (float)c / circles) % 1f);
+            Lines.stroke((1f-fin) * stroke + minStroke);
+
+            for(int s = 0; s < len; s++){
+                //use specific side if necessary
+                int i = params.sideOverride == -1 ? s : params.sideOverride;
+
+                float sign = (i == 0 ? 1 : -1) * params.sideMultiplier;
+                Tmp.v1.set((x) * sign, y).rotate(params.rotation - 90);
+
+                float
+                rx = params.x + Tmp.v1.x,
+                ry = params.y + Tmp.v1.y;
+
+                Lines.square(rx, ry, radius * fin, params.rotation - 45f);
+            }
+        }
+
+        Draw.reset();
+
+        Draw.z(z);
+    }
+
+    @Override
+    public void load(String name){
+
+    }
+}