NIL CHECK

demos/multiplayer/client.lua

@@ -11,13 +11,31 @@ workspace.camera.position = vector3(0, 25, -15)
 workspace.camera:lookAt(vector3(0, 0, 0))
 require("tevgit:workshop/controllers/environment/camera.lua")
 
+local boomMode = false
+local boomBtn = engine.construct("guiTextBox", engine.interface, {
+    text = "Boom Mode Off",
+    position = guiCoord(0.5, -70, 0, 10),
+    size = guiCoord(0, 140, 0, 24),
+    fontSize = 18,
+    backgroundColour = colour(0.2, 0.2, 0.25),
+    borderRadius = 4,
+    align = enums.align.middle
+})
+boomBtn:on("mouseLeftReleased", function()
+    boomMode = not boomMode
+    boomBtn.text = boomMode and "Boom Mode On" or "Boom Mode Off"
+end)
+
 local function registerBlock(c)
     if c.className == "block" then
         c:once("mouseLeftPressed", function ()
             if c.size == vector3(4, 4, 4) then
-                --print("mining", c.position.x/4, c.position.y/4, c.position.z/4)
+                if boomMode then
+                    engine.networking:toServer("explodeBlock", c.position.x/4, c.position.y/4, c.position.z/4)
+                else
                     engine.networking:toServer("mineBlock", c.position.x/4, c.position.y/4, c.position.z/4)
                 end
+            end
         end)
     end
 end

demos/multiplayer/server.lua

@@ -105,12 +105,10 @@ for x = -5, 5 do
     end
 end
 
--- There's not much validation here...
+local function mine(x, y, z)
-engine.networking:bind( "mineBlock", function( client, x, y, z )
+    if isSpaceUsed(x, y, z) and minable[x] and minable[x][y] and minable[x][y][z] then
-	if type(x) == "number" and type(y) == "number" and type(z) == "number" and isSpaceUsed(x, y, z) then
         local block = minable[x][y][z]
-
+        if type(block) == "block" then
-        if block then
             setSpaceUsed(x, y, z, true)
 
             if not isSpaceUsed(x, y - 1, z) then
@@ -140,6 +138,25 @@ engine.networking:bind( "mineBlock", function( client, x, y, z )
             block:destroy()
         end
     end
+end
+
+-- There's not much validation here...
+engine.networking:bind( "mineBlock", function( client, x, y, z )
+	if type(x) == "number" and type(y) == "number" and type(z) == "number" then
+        mine(x, y, z)
+	end
+end)
+
+engine.networking:bind( "explodeBlock", function( client, x, y, z )
+	if type(x) == "number" and type(y) == "number" and type(z) == "number" then
+        for xo = -2, 2 do
+            for yo = -2, 2 do
+                for zo = -2, 2 do
+                    mine(x + xo, y + yo, z + zo)
+                end
+            end
+        end
+	end
 end)
 
 print("server loaded")