TARDIM factory closed due to supply chain issues

src/main/java/de/srendi/cctutorial/cctutorial/CCPeripheral.java

@@ -6,6 +6,7 @@ import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.lua.ObjectLuaTable;
 import dan200.computercraft.api.lua.LuaException;
 
+import net.minecraft.core.BlockPos;
 import net.minecraft.world.level.Level;
 
 
@@ -61,22 +62,75 @@ public class CCPeripheral implements IPeripheral {
     }
 
 
-    // Get TARDIM's data, which we need for *every* function
-    // TODO: How do we check if there is no TARDIM?!
-    public TardimData getTardimData() {
-    	return TardimManager.getFromPos(getTileEntity().getPos());
+    /* Get TARDIM's data, which we need for *every* function
+    *
+    * We can't do a simple
+    *   TardimManager.getFromPos(getTileEntity().getPos())
+    * because if someone attempts to call a method outside a TARDIM, this would create a new TARDIM/Point to the one with ID of 0 (Due to the way TardimSaveHandler.loadTardisData works).
+    * Which is obviously not what we want.
+    *
+    * So instead we use this, and recieve ability to give user a LuaException if they think that fiddling with time devices is funny
+    * This is mostly a copy of getIDForXZ function */
+    public TardimData getTardimData() throws LuaException {
+        int X = getTileEntity().getPos().getX(), Z = getTileEntity().getPos().getZ();
+
+        int index = 0;
+        int x = 0;
+        int y = 0;
+        int dx = 0;
+        int dy = 1;
+        int segment_length = 1;
+        int segment_passed = 0;
+        boolean found = false;
+        long timecheck = System.currentTimeMillis();
+
+        while(true) {
+            if (System.currentTimeMillis() - timecheck > 10000L) {
+                System.out.println("Finding ID from XZ Coordinates is taking too long!");
+                break;
+            }
+
+            if (X >= x * TardimManager.INTERIOR_BOUNDS
+                    && X <= TardimManager.INTERIOR_BOUNDS + x * TardimManager.INTERIOR_BOUNDS
+                    && Z >= y * TardimManager.INTERIOR_BOUNDS
+                    && Z <= TardimManager.INTERIOR_BOUNDS + y * TardimManager.INTERIOR_BOUNDS) {
+                found = true;
+                break;
+            }
+
+            x += dx;
+            y += dy;
+            if (++segment_passed == segment_length) {
+                segment_passed = 0;
+                int buffer = dy;
+                dy = -dx;
+                dx = buffer;
+                if (buffer == 0) {
+                    ++segment_length;
+                }
+            }
+
+            ++index;
+        }
+
+        // We really don't want to create a new TARDIM if we are not inside one, do we?
+        if (!found) {
+            throw new LuaException("Peripheral is not inside a TARDIM");
+        }
+
+    	return TardimManager.getTardim(index);
     }
 
     // Peripheral methods ===============================================================
 
     // Get amount of fuel we have (Out of 100)
     @LuaFunction(mainThread = true)
-    public final double get_fuel() {
+    public final double get_fuel() throws LuaException {
         return getTardimData().getFuel();
     }
 
     @LuaFunction(mainThread = true)
-    public final double calculate_fuel() {
+    public final double calculate_fuel() throws LuaException {
         TardimData data = getTardimData();
 
         if (data.getTravelLocation() == null) return 0;
@@ -96,17 +150,17 @@ public class CCPeripheral implements IPeripheral {
 
     // Check whether the TARDIM is locked
     @LuaFunction(mainThread = true)
-    public final boolean is_locked() {
+    public final boolean is_locked() throws LuaException {
         return getTardimData().isLocked();
     }
 
     //  Check whether the TARDIM is in flight
     @LuaFunction(mainThread = true)
-    public final boolean is_in_flight() { return getTardimData().isInFlight(); }
+    public final boolean is_in_flight() throws LuaException { return getTardimData().isInFlight(); }
 
     // Supposedly gets UNIX timestamp of when we entered flight
     @LuaFunction(mainThread = true)
-    public final long get_time_entered_flight() {
+    public final long get_time_entered_flight() throws LuaException {
         TardimData data = getTardimData();
         if (!data.isInFlight()) {
             return -1;
@@ -117,20 +171,20 @@ public class CCPeripheral implements IPeripheral {
 
     // Get username of the TARDIM's owner
     @LuaFunction(mainThread = true)
-    public final String get_owner_name() {
+    public final String get_owner_name() throws LuaException {
         TardimData data = getTardimData();
         return data.getOwnerName();
     }
 
     // Lock/Unlock the TARDIM
     @LuaFunction(mainThread = true)
-    public final void set_locked(boolean locked) {
+    public final void set_locked(boolean locked) throws LuaException {
         getTardimData().setLocked(locked);
     }
 
     // Returns table with current TARDIM location
     @LuaFunction(mainThread = true)
-    public final ObjectLuaTable get_current_location() {
+    public final ObjectLuaTable get_current_location() throws LuaException {
     	Location loc = getTardimData().getCurrentLocation();
         return new ObjectLuaTable(Map.of(
             "dimension", loc.getLevel().location().toString(),
@@ -145,7 +199,7 @@ public class CCPeripheral implements IPeripheral {
 
     // Returns flight destination (or null if there isn't one)
     @LuaFunction(mainThread = true)
-    public final ObjectLuaTable get_flight_location() {
+    public final ObjectLuaTable get_flight_location() throws LuaException {
     	TardimData data = getTardimData();
         if (data.getTravelLocation() != null) {
         	Location loc = data.getTravelLocation();