Fixed prerequisite detection with OC scripts

src/main/resources/assets/warpdrive/lua.OpenComputers/warpdriveForceFieldProjector/disable.lua

@@ -1,13 +1,18 @@
 local component = require("component")
 local term = require("term")
 
+if not term.isAvailable() then
+  computer.beep()
+  os.exit()
+end
+
 if not component.isAvailable("warpdriveForceFieldProjector") then
   print("No force field projector detected")
 else
   local projector = component.warpdriveForceFieldProjector
   projector.enable(false)
   os.sleep(1)
-  status, isEnabled, isConnected, isPowered, shape, energy = projector.state()
+  local status, isEnabled, isConnected, isPowered, shape, energy = projector.state()
   print("Projector is disabled")
   print()
   print(status)

src/main/resources/assets/warpdrive/lua.OpenComputers/warpdriveForceFieldProjector/enable.lua

@@ -1,13 +1,18 @@
 local component = require("component")
 local term = require("term")
 
+if not term.isAvailable() then
+  computer.beep()
+  os.exit()
+end
+
 if not component.isAvailable("warpdriveForceFieldProjector") then
   print("No force field projector detected")
 else
   local projector = component.warpdriveForceFieldProjector
   projector.enable(true)
   os.sleep(1)
-  status, isEnabled, isConnected, isPowered, shape, energy = projector.state()
+  local status, isEnabled, isConnected, isPowered, shape, energy = projector.state()
   if isConnected then
     if isPowered then
       print("Projector is enabled")

src/main/resources/assets/warpdrive/lua.OpenComputers/warpdriveLaserTreefarm/farm.lua

@@ -4,7 +4,11 @@ local term = require("term")
 
 if not term.isAvailable() then
   computer.beep()
-  return
+  os.exit()
+end
+if not component.gpu.getDepth() < 4 then
+  print("Tier 2 GPU required")
+  os.exit()
 end
 
 treefarms = {}

src/main/resources/assets/warpdrive/lua.OpenComputers/warpdriveLaserTreefarm/stop.lua

@@ -4,7 +4,11 @@ local term = require("term")
 
 if not term.isAvailable() then
   computer.beep()
-  return
+  os.exit()
+end
+if not component.gpu.getDepth() < 4 then
+  print("Tier 2 GPU required")
+  os.exit()
 end
 
 treefarms = {}

src/main/resources/assets/warpdrive/lua.OpenComputers/warpdriveMiningLaser/mine.lua

@@ -4,7 +4,11 @@ local term = require("term")
 
 if not term.isAvailable() then
   computer.beep()
-  return
+  os.exit()
+end
+if not component.gpu.getDepth() < 4 then
+  print("Tier 2 GPU required")
+  os.exit()
 end
 
 mininglasers = {}

src/main/resources/assets/warpdrive/lua.OpenComputers/warpdriveMiningLaser/stop.lua

@@ -4,7 +4,11 @@ local term = require("term")
 
 if not term.isAvailable() then
   computer.beep()
-  return
+  os.exit()
+end
+if not component.gpu.getDepth() < 4 then
+  print("Tier 2 GPU required")
+  os.exit()
 end
 
 mininglasers = {}