Scripting WIP (#70)

* Scripting introduced

* AppImage workflow fixes

* AppImage workflow simplified

* README.md update

* README.md update

* small fix

res/content/base/blocks/flower.json

@@ -4,6 +4,7 @@
     "light-passing": true,
     "obstacle": false,
     "replaceable": true,
+    "grounded": true,
     "model": "X",
     "hitbox": [0.15, 0.0, 0.15, 0.7, 0.7, 0.7]
-}
+}

res/content/base/blocks/grass.json

@@ -4,6 +4,7 @@
     "light-passing": true,
     "obstacle": false,
     "replaceable": true,
+    "grounded": true,
     "model": "X",
     "hitbox": [0.15, 0.0, 0.15, 0.7, 0.7, 0.7]
-}
+}

res/content/base/scripts/grass_block.lua

@@ -0,0 +1,20 @@
+function on_random_update(x, y, z)
+    local dirtid = block_index('base:dirt');
+    if is_solid_at(x, y+1, z) then
+        set_block(x, y, z, dirtid)
+    else
+        local grassblockid = block_index('base:grass_block')
+        for lx=-1,1 do
+            for ly=-1,1 do
+                for lz=-1,1 do
+                    if get_block(x + lx, y + ly, z + lz) == dirtid then
+                        if not is_solid_at(x + lx, y + ly + 1, z + lz) then
+                            set_block(x + lx, y + ly, z + lz, grassblockid)
+                            return
+                        end
+                    end
+                end
+            end
+        end
+    end
+end