app tweaks

ignore/Vision.lua

@@ -0,0 +1,70 @@
+local Event   = require('event')
+local Point   = require('point')
+local Proxy   = require('proxy')
+local Util    = require('util')
+
+local device  = _G.device
+local network = _G.network
+
+local glasses = device['plethora:glasses'] or error('Overlay glasses are required')
+
+local id = tonumber(({...})[1]) or
+  error('Syntax: Vision <id>')
+
+local blacklist = {
+  [ 'minecraft:air'] = true,
+}
+local turtle, socket = Proxy.create(id, 'device/plethora:scanner')
+if not turtle then
+  error('nope')
+end
+local current
+local projecting = { }
+local canvas = glasses.canvas3d().create()
+
+local function displayBlocks(scanned)
+print('redrawing')
+  local blocks = { }
+  for _, b in pairs(scanned) do
+    -- track block's world position
+    b.id = table.concat({ b.x, b.y, b.z }, ':')
+    blocks[b.id] = b
+  end
+
+  for _, b in pairs(blocks) do
+    if not projecting[b.id] then
+      projecting[b.id] = b
+      pcall(function()
+        b.box = canvas.addItem({ b.x / 40, b.y / 40 - .25, b.z / 40 }, b.name, b.damage, .025)
+      end)
+    --      b.box.setDepthTested(false)
+    end
+  end
+
+  for _, b in pairs(projecting) do
+    if b.box and not blocks[b.id] then
+      b.box.remove()
+      projecting[b.id] = nil
+    end
+  end
+end
+
+Event.onInterval(1, function()
+  local t = network[id]
+
+  --if t and t.point and (not current or not Point.same(t.point, current)) then
+  --  current = t.point
+    local scanned = turtle.scan(blacklist)
+    if scanned then
+      displayBlocks(Util.filter(turtle.scan(), function(b)
+        if not blacklist[b.name] then
+          return true
+        end
+      end))
+    end
+  --end
+end)
+
+Event.pullEvents()
+canvas:clear()
+socket:close()