Add flint and flint-and-steel

mods/default/README.txt

@@ -178,6 +178,7 @@ Gambit (WTFPL):
   default_diamond_block.png
   default_ladder_steel.png
   default_sign_wall_wood.png
+  default_flint.png
 
 asl97 (WTFPL):
   default_ice.png

mods/default/craftitems.lua

@@ -190,3 +190,9 @@ minetest.register_craftitem("default:obsidian_shard", {
 	description = "Obsidian Shard",
 	inventory_image = "default_obsidian_shard.png",
 })
+
+minetest.register_craftitem("default:flint", {
+	description = "Flint",
+	inventory_image = "default_flint.png"
+})
+

mods/default/nodes.lua

@@ -353,9 +353,15 @@ minetest.register_node("default:gravel", {
 		footstep = {name = "default_gravel_footstep", gain = 0.5},
 		dug = {name = "default_gravel_footstep", gain = 1.0},
 	}),
+	drop = {
+		max_items = 1,
+		items = {
+			{items = {'default:flint'}, rarity = 16},
+			{items = {'default:gravel'}}
+		}
+	}
 })
 
-
 minetest.register_node("default:clay", {
 	description = "Clay",
 	tiles = {"default_clay.png"},