Various unit logic additions

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

@@ -62,7 +62,7 @@ abstract class MinerComp implements Itemsc, Posc, Teamc, Rotc, Drawc, Unitc{
                 Fx.pulverizeSmall.at(mineTile.worldx() + Mathf.range(tilesize / 2f), mineTile.worldy() + Mathf.range(tilesize / 2f), 0f, item.color);
             }
 
-            if(mineTimer >= 50f + item.hardness*10f){
+            if(mineTimer >= 50f + item.hardness*15f){
                 mineTimer = 0;
 
                 if(within(core, mineTransferRange) && core.acceptStack(item, 1, this) == 1 && offloadImmediately()){

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

@@ -52,7 +52,7 @@ abstract class PosComp implements Position{
 
     boolean onSolid(){
         Tile tile = tileOn();
-        return tile != null && tile.solid();
+        return tile == null || tile.solid();
     }
 
     @Nullable

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

@@ -66,6 +66,11 @@ abstract class UnitComp implements Healthc, Physicsc, Hitboxc, Statusc, Teamc, I
         return type.hasWeapons();
     }
 
+    /** @return speed with boost multipliers factored in. */
+    public float realSpeed(){
+        return Mathf.lerp(1f, type.canBoost ? type.boostMultiplier : 1f, elevation) * type.speed;
+    }
+
     @Override
     public float range(){
         return type.range;

core/src/mindustry/entities/units/AIController.java

@@ -187,7 +187,7 @@ public class AIController implements UnitController{
 
         float length = circleLength <= 0.001f ? 1f : Mathf.clamp((unit.dst(target) - circleLength) / smooth, -1f, 1f);
 
-        vec.setLength(unit.type().speed * length);
+        vec.setLength(unit.realSpeed() * length);
         if(length < -0.5f){
             vec.rotate(180f);
         }else if(length < 0){