More work on the tinkering mod. Added casts, prettified the APIs

metal_melter/caster.lua

@@ -12,9 +12,9 @@ metal_caster.spec = metal_melter.spec
 metal_caster.spec.cast = 288
 
 metal_caster.casts = {
-	ingot_cast = {"Ingot Cast", "%s:%s_ingot", metal_caster.spec.ingot, {"ingot"}},
-	lump_cast = {"Lump Cast", "%s:%s_lump", metal_caster.spec.lump, {"lump"}},
-	gem_cast = {"Gem Cast", "%s:%s_crystal", metal_caster.spec.crystal, {"crystal", "gem"}}
+	ingot_cast = {name = "Ingot Cast", result = "%s:%s_ingot",   cost = metal_caster.spec.ingot,   typenames = {"ingot"}},
+	lump_cast  = {name = "Lump Cast",  result = "%s:%s_lump",    cost = metal_caster.spec.lump,    typenames = {"lump"}},
+	gem_cast   = {name = "Gem Cast",   result = "%s:%s_crystal", cost = metal_caster.spec.crystal, typenames = {"crystal", "gem"}}
 }
 
 local metal_cache = {}
@@ -114,9 +114,14 @@ end
 
 -- Check to see if this cast is able to cast this metal type
 local function can_cast(metal_name, cast_name)
+	local cast = metal_caster.casts[cast_name]
+
+	if cast.mod then
+		return cast.mod
+	end
+
 	local mod = metal_caster.get_modname_for_metal(metal_name)
-	local castt = metal_caster.casts[cast_name]
-	local item_name = castt[2]:format(mod, metal_name)
+	local item_name = cast.result:format(mod, metal_name)
 
 	if minetest.registered_items[item_name] ~= nil then
 		return mod
@@ -205,7 +210,7 @@ local function get_cast_for(item)
 
 	local cast = nil
 	for i, v in pairs(metal_caster.casts) do
-		for _,k in pairs(v[4]) do
+		for _,k in pairs(v.typenames) do
 			if castname == k then
 				cast = i
 			end
@@ -286,14 +291,14 @@ local function caster_node_timer(pos, elapsed)
 		metal_type = fluidity.get_metal_for_fluid(metal)
 
 		local castname = inv:get_stack("cast", 1):get_name()
-		castname = castname:gsub("metal_melter:", "")
+		castname = castname:gsub("[a-zA-Z0-9_]+:", "")
 		if metal_caster.casts[castname] then
 			-- Cast metal using a cast
 			local cast = metal_caster.casts[castname]
 			local modname = can_cast(metal_type, castname)
 			if modname ~= nil then
-				local result_name = cast[2]:format(modname, metal_type)
-				local result_cost = cast[3]
+				local result_name = cast.result:format(modname, metal_type)
+				local result_cost = cast.cost
 				local coolant_cost = result_cost / 4
 
 				if metal_count >= result_cost and coolant_count >= coolant_cost then
@@ -383,16 +388,18 @@ end
 
 -- Register a new cast
 function metal_caster.register_cast(name, data)
-	if not metal_caster.casts[name] then
-		metal_caster.casts[name] = data
-	end
+	local modname = data.mod or "metal_melter"
 
-	minetest.register_craftitem("metal_melter:"..name, {
-		description = data[1],
+	minetest.register_craftitem(modname..":"..name, {
+		description = data.name,
 		inventory_image = "caster_"..name..".png",
 		stack_max = 1,
 		groups = {cast=1}
 	})
+
+	if not metal_caster.casts[name] then
+		metal_caster.casts[name] = data
+	end
 end
 
 -- Register the caster

tinkering/materials.lua

@@ -241,7 +241,7 @@ tinkering.materials = {
 
 	-- Metals
 	iron   = {name = "Iron",   default = "default:steel_ingot",  color = "#FFF",    base = "ingot", cast = true, modifier = modifiers.iron},
-	copper = {name = "Copper", default = "default:copper_ingot", color = "#FF9F72", base = "ingot", cast = true, modifier = modifiers.copper},
+	copper = {name = "Copper", default = "default:copper_ingot", color = "#E87945", base = "ingot", cast = true, modifier = modifiers.copper},
 	tin    = {name = "Tin",    default = "default:tin_ingot",    color = "#C1C1C1", base = "ingot", cast = true, modifier = modifiers.tin},
 	gold   = {name = "Gold",   default = "default:gold_ingot",   color = "#FFFF54", base = "ingot", cast = true, modifier = modifiers.gold},
 	mese   = {name = "Mese",   default = "default:mese_crystal", color = "#FFFF02", base = "gem",                modifier = modifiers.mese},

tinkering/register.lua

@@ -1,22 +1,76 @@
-local textures = {
-	pick   = {"tinkering_pickaxe_head.png",  "tinkering_overlay_handle_pickaxe.png"},
-	axe    = {"tinkering_axe_head.png",       "tinkering_overlay_handle_axe.png"},
-	sword  = {"tinkering_sword_blade.png",  "tinkering_overlay_handle_sword.png"},
-	shover = {"tinkering_shovel_head.png", "tinkering_overlay_handle_shovel.png"},
-
-	rod     = "tinkering_tool_rod.png",
-	binding = "tinkering_binding.png"
+local tools = {
+	pick = {
+		name = "Pickaxe",
+		groups = {"cracky"},
+		fleshy_decrement = 1,
+		components = {
+			main    = "pickaxe_head",
+			binding = "tool_binding",
+			rod     = "tool_rod"
+		},
+		textures = {
+			main   = "tinkering_pickaxe_head.png",
+			second = "tinkering_overlay_handle_pickaxe.png",
+			offset = "1,-1"
+		}
+	},
+	axe = {
+		name = "Axe",
+		groups = {"choppy"},
+		fleshy_increment = 1,
+		components = {
+			main    = "axe_head",
+			binding = "tool_binding",
+			rod     = "tool_rod"
+		},
+		textures = {
+			main   = "tinkering_axe_head.png",
+			second = "tinkering_overlay_handle_axe.png",
+			offset = "1,-3"
+		}
+	},
+	sword = {
+		name = "Sword",
+		groups = {"snappy"},
+		fleshy_decrement = 0,
+		components = {
+			main    = "sword_blade",
+			binding = "tool_binding",
+			rod     = "tool_rod"
+		},
+		textures = {
+			main   = "tinkering_sword_blade.png",
+			second = "tinkering_overlay_handle_sword.png",
+			offset = "0,0"
+		}
+	},
+	shovel = {
+		name = "Shovel",
+		groups = {"crumbly"},
+		fleshy_decrement = 1,
+		components = {
+			main    = "shovel_head",
+			binding = "tool_binding",
+			rod     = "tool_rod"
+		},
+		textures = {
+			main   = "tinkering_shovel_head.png",
+			second = "tinkering_overlay_handle_shovel.png",
+			offset = "3,-3"
+		}
+	},
 }
 
 local components = {
-	pickaxe_head = {description = "%s Pickaxe Head", materials = 1, image = textures.pick[1]},
-	axe_head     = {description = "%s Axe Head",     materials = 1, image = textures.axe[1]},
-	sword_blade  = {description = "%s Sword Blade",  materials = 1, image = textures.sword[1]},
-	shover_head  = {description = "%s Shovel Head",  materials = 1, image = textures.shover[1]},
-	tool_rod     = {description = "%s Tool Rod",     materials = 1, image = textures.rod},
-	tool_binding = {description = "%s Binding",      materials = 1, image = textures.binding}
+	pickaxe_head = {description = "%s Pickaxe Head", materials = 1, image = tools.pick.textures.main},
+	axe_head     = {description = "%s Axe Head",     materials = 1, image = tools.axe.textures.main},
+	sword_blade  = {description = "%s Sword Blade",  materials = 1, image = tools.sword.textures.main},
+	shovel_head  = {description = "%s Shovel Head",  materials = 1, image = tools.shovel.textures.main},
+	tool_rod     = {description = "%s Tool Rod",     materials = 1, image = "tinkering_tool_rod.png"},
+	tool_binding = {description = "%s Tool Binding", materials = 1, image = "tinkering_tool_binding.png"}
 }
 
+-- Register a tool component
 function tinkering.register_component(data)
 	local desc = data.description
 	local name = data.name
@@ -29,14 +83,290 @@ function tinkering.register_component(data)
 	})
 end
 
-for i, v in pairs(components) do
+-- Register a tool type
+--
+--	name = "Pickaxe",     -- Name (description) of the tool
+--	groups = {"cracky"},  -- Group caps that apply
+--  mod = "tinkering",    -- The mod you're registering this tool from
+--	fleshy_decrement = 1, -- Amount removed from base damage group "fleshy". Negative value adds.
+--	components = {
+--		main    = "pickaxe_head", -- Name of the primary component
+--		binding = "tool_binding", -- Second component
+--		rod     = "tool_rod"      -- Mandatory rod component
+--	},
+--	textures = {
+--		main   = "tinkering_pickaxe_head.png",           -- Head (main) Texture
+--		second = "tinkering_overlay_handle_pickaxe.png", -- Overlay (typically a handle)
+--		offset = "1,-1"                                  -- Head's offset on the texture
+--	}
+--
+function tinkering.register_tool_type(name, data)
+	tools[name] = data
+end
+
+-- Create groups based on materials
+local function apply_modifiers(materials, basegroup, dgroup)
+	local tags = {}
+	local groups = {}
+
+	local incr = 0.00
+	local uses = 0
+	local dmg = {}
+
+	-- Apply material modifiers
+	for m, v in pairs(materials) do
+		local material = tinkering.materials[v]
+		local mod = material.modifier
+
+		if m ~= "main" then
+			if mod[m] then
+				local mp = mod[m]
+				if mp.increase then
+					incr = incr + mp.increase
+				end
+
+				if mp.uses then
+					uses = uses + mp.uses
+				end
+
+				if mp.damage then
+					for g,mod in pairs(mp.damage) do
+						if dmg[g] == nil or dmg[g] < mod then
+							dmg[g] = mod
+						end
+					end
+				end
+			end
+		end
+
+		-- Apply tags
+		if mod.tags then
+			for _,t in pairs(mod.tags) do
+				if tags[t.name] == nil then
+					tags[t.name] = t.description
+				end
+			end
+		end
+	end
+
+	-- Apply modified to base groups
+	for grp, d in pairs(basegroup) do
+		groups[grp] = d
+
+		for id,val in pairs(d.times) do
+			groups[grp].times[id] = val + (incr / id)
+		end
+
+		groups[grp].uses = d.uses + uses
+	end
+
+	-- Apply damage group modifications
+	for g,l in pairs(dgroup) do
+		if dmg[g] == nil or dmg[g] < l then
+			dmg[g] = l
+		end
+	end
+
+	return groups, dmg, tags
+end
+
+-- Generate a tool texture based on tool type, main material (head) and rod material (handle).
+function tinkering.compose_tool_texture(tooltype, main, rod)
+	local mat_main = tinkering.materials[main]
+	local mat_rod  = tinkering.materials[rod]
+
+	local tool_data = tools[tooltype]
+
+	local main_tex = tool_data.textures.main   .."\\^[multiply\\:".. mat_main.color
+	local rod_tex  = tool_data.textures.second .."\\^[multiply\\:".. mat_rod.color
+	local align    = tool_data.textures.offset
+
+	return "[combine:16x16:"..align.."="..main_tex..":0,0="..rod_tex
+end
+
+local function quickcopy(t)
+	local res = {}
+	for i, v in pairs(t) do
+		res[i] = v
+	end
+	return res
+end
+
+-- Generate tool capabilities based on tool type and materials
+function tinkering.get_tool_capabilities(tool_type, materials)
+	if not materials["main"] or not materials["rod"] then
+		return nil
+	end
+
+	-- Get main material
+	local main = tinkering.materials[materials.main]
+	if not main then return nil end
+	
+	-- Tool data
+	local tool_data = tools[tool_type]
+
+	-- Name of the tool
+	local name = tool_data.name or "Tool"
+
+	-- Group copies
+	local groups = {}
+	local dgroups = {}
+
+	-- Copy the groups
+	for g,v in pairs(main.modifier.damagegroups) do
+		-- Decrement/increment damage group if tool wants it
+		if tool_data[g.."_decrement"] then
+			dgroups[g] = v - tool_data[g.."_decrement"]
+		elseif tool_data[g.."_increment"] then
+			dgroups[g] = v + tool_data[g.."_increment"]
+		else
+			dgroups[g] = v
+		end
+	end
+
+	-- Type specific groups and modifiers
+	for _,v in pairs(tool_data.groups) do
+		if main.modifier[v] then
+			groups[v] = quickcopy(main.modifier[v])
+		end
+	end
+
+	-- Apply all modifiers
+	local fg, fd, tags = apply_modifiers(materials, groups, dgroups)
+	local tool_caps = {
+		full_punch_interval = 1.0,
+		max_drop_level = 0,
+		groupcaps = fg,
+		damagegroups = fd,
+	}
+
+	-- Construct the name
+	name = main.name.." "..name
+
+	return tool_caps, name, tags
+end
+
+-- Return tool definition
+function tinkering.tool_definition(tool_type, materials)
+	if not materials["main"] or not materials["rod"] then
+		return nil
+	end
+
+	local capabilities, name, tags = tinkering.get_tool_capabilities(tool_type, materials)
+	if not capabilities then return nil end
+
+	local tool_tree = {
+		description       = name,
+		tool_capabilities = capabilities,
+		groups            = {tinker_tool = 1},
+		inventory_image   = tinkering.compose_tool_texture(tool_type, materials.main, materials.rod)
+	}
+
+	-- Store materials to use in metadata
+	local tink_mats = ""
+	for _,m in pairs(materials) do
+		tink_mats = tink_mats..","..m
+	end
+
+	return tool_tree, tink_mats, tags
+end
+
+-- Compare provided components to the required components of this tool
+local function compare_components_required(tool_spec, materials)
+	local all_match = true
+	
+	for i, v in pairs(tool_spec) do
+		if not materials[i] then
+			all_match = false
+		end
+	end
+
+	return all_match
+end
+
+-- Create a new tool based on parameters specified.
+function tinkering.create_tool(tool_type, materials, want_tool, custom_name, overrides)
+	-- TODO: Apply tags
+	-- TODO: Add texture as metadata (https://github.com/minetest/minetest/issues/5686)
+
+	-- Not a valid tool type
+	if not tools[tool_type] then return false end
+	local tool_data = tools[tool_type]
+
+	-- Check if the components are correct
+	if not compare_components_required(tool_data.components, materials) then return false end
+
+	-- Get tool definition and other metadata
+	local tool_def, mat_names, tags = tinkering.tool_definition(tool_type, materials)
+	if not tool_def then return false end
+
+	local mod_name = tool_data.mod or "tinkering"
+
+	-- Apply overrides
+	if overrides then
+		for i, v in pairs(overrides) do
+			tool_def[i] = v
+		end
+	end
+
+	-- Use custom name
+	if custom_name ~= nil and custom_name ~= "" then
+		tool_def.description = custom_name
+	end
+
+	-- Create internal name
+	local internal_name = mod_name..":"..materials.main.."_"..tool_type
+
+	-- Register base tool if it doesnt exist already
+	if not minetest.registered_items[internal_name] then
+		minetest.register_tool(internal_name, tool_def)
+	end
+
+	if not want_tool then return true end
+
+	-- Create a new tool instance and apply metadata
+	local tool = ItemStack(internal_name)
+	local meta = tool:get_meta()
+	meta:set_string("description", tool_def.description)
+	meta:set_string("texture_string", tool_def.inventory_image) -- NOT IMPLEMENTED YET!
+	meta:set_tool_capabilities(tool_def.tool_capabilities)
+	meta:set_string("materials", mat_names)
+
+	return tool
+end
+
+-- Register components and base tools
+local start_load = os.clock()
+local tools = {"pick", "axe", "shovel", "sword"}
+local num_components = 0
+local num_tools = 0
+
+for m, s in pairs(tinkering.materials) do
+	for i, v in pairs(components) do
 		if v.materials == 1 then
-		for m, s in pairs(tinkering.materials) do
 			tinkering.register_component({
 				name = m.."_"..i,
 				description = v.description:format(s.name),
 				image = tinkering.color_filter(v.image, s.color)
 			})
+			num_components = num_components + 1
 		end
 	end
+
+	for _,t in pairs(tools) do
+		tinkering.create_tool(t, {main=m,binding="wood",rod="wood"}, false, nil, {groups={not_in_creative_inventory=1}})
+		num_tools = num_tools + 1
+	end
 end
+
+-- Add casts to metal_melter
+for i,v in pairs(components) do
+	metal_caster.register_cast(i.."_cast", {
+		name = v.description:sub(4).." Cast",
+		mod = "tinkering",
+		result = "%s:%s_"..i,
+		cost = metal_caster.spec.cast
+	})
+end
+
+print(("[tinkering] Added %d components and %d base tools in %f seconds."):format(num_components, num_tools, os.clock() - start_load))