Implemented ground mech boosting

core/src/mindustry/entities/comp/DecalComp.java

@@ -0,0 +1,33 @@
+package mindustry.entities.comp;
+
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.gen.*;
+import mindustry.graphics.*;
+
+@EntityDef(value = {Decalc.class}, pooled = true, serialize = false)
+@Component
+abstract class DecalComp implements Drawc, Timedc, Rotc, Posc{
+    @Import float x, y, rotation;
+
+    Color color = new Color(1, 1, 1, 1);
+    TextureRegion region;
+
+    @Override
+    public void draw(){
+        Draw.z(Layer.scorch);
+
+        Draw.color(color);
+        Draw.alpha(1f - Mathf.curve(fin(), 0.98f));
+        Draw.rect(region, x, y, rotation);
+        Draw.color();
+    }
+
+    @Replace
+    public float clipSize(){
+        return region.getWidth()*2;
+    }
+
+}