Fixed trail length bug / Base projector classes

core/src/io/anuke/mindustry/entities/bullet/Bullet.java

@@ -70,7 +70,7 @@ public class Bullet extends BulletEntity<BulletType> implements TeamTrait, SyncT
         bullet.lastPosition().set(x - bullet.velocity.x * backDelta, y - bullet.velocity.y * backDelta, bullet.angle());
         bullet.setLastUpdated(TimeUtils.millis());
         bullet.setUpdateSpacing((long) ((Timers.delta() / 60f) * 1000));
-        bullet.set(x - bullet.velocity.x * backDelta, y - bullet.velocity.y * backDelta);
+        bullet.set(x, y);
 
         bullet.add();
     }

core/src/io/anuke/mindustry/graphics/Trail.java

@@ -29,7 +29,7 @@ public class Trail{
 
         points.add(curx, cury);
 
-        if(points.size > (int)(length * 2 / Math.min(Timers.delta(), 1f))){
+        while(points.size > (int)(length * 2 / Math.min(Timers.delta(), 1f))){
             float[] items = points.items;
             System.arraycopy(items, 2, items, 0, points.size - 2);
             points.size -= 2;

core/src/io/anuke/mindustry/world/blocks/defense/ForceProjector.java

@@ -0,0 +1,10 @@
+package io.anuke.mindustry.world.blocks.defense;
+
+import io.anuke.mindustry.world.Block;
+
+public class ForceProjector extends Block {
+
+    public ForceProjector(String name) {
+        super(name);
+    }
+}

core/src/io/anuke/mindustry/world/blocks/defense/OverdriveProjector.java

@@ -0,0 +1,10 @@
+package io.anuke.mindustry.world.blocks.defense;
+
+import io.anuke.mindustry.world.Block;
+
+public class OverdriveProjector extends Block {
+
+    public OverdriveProjector(String name) {
+        super(name);
+    }
+}