Fix undeclared global variable warning at startup

DISABLE_GOLD_SPEAR

CHANGELOG

@@ -1,8 +1,3 @@
-Version 2.3:
-- Updated to Minetest 5.6.0 API
-- Changed receipts to avoid being confused with arrows
-- Various cleansing and fixes
-
 Version 2.2:
 - "Hit detection" based on spearhead position
 - Spears go through buildable_to nodes (snow)

README

@@ -12,17 +12,14 @@ How to install:
 http://wiki.minetest.com/wiki/Installing_Mods
 
 How to use the mod:
-Craft a spear with 	| 	|	| (material) | 
-			|	| stick |	     | 
-			| stick	|	|	     |,
-works also mirrored.
+Craft a spear with | stick | stick | (material) |, works also mirrored.
 Spears can be thrown using right mouse button, they either hurt someone or stick where they land on; damage depends on speed and material, flight trajectory is ballistic with (unrealistic) drag.
 Spears can be used to fight, but are slower and weaker than swords.
 Spears can be used to dig, but are slower and weaker and pickaxes.
 If you miss the target it's your fault, the spear is fine.
 You can grab a spear on the fly (or maybe wait until it falls?).
 You can stick a spear into a block, but if you remove the block then the spear falls (obviously).
-This mod contains the word "spear" more than 100 times, if you want the exact number you can count them.
+This mod contains the word "spear" more than 100 times, if you want the exact number count them yourself.
 If you feel clever, throw a spear right above you and look at it to see what happens.
 You can even throw a spear from above down to your foes, it's even easier to hit.
 Someone once reported to have hit its own foot but it takes practice to do that.

defaults.lua

@@ -5,12 +5,3 @@ DISABLE_BRONZE_SPEAR = false
 DISABLE_DIAMOND_SPEAR = false
 DISABLE_OBSIDIAN_SPEAR = false
 DISABLE_GOLD_SPEAR = false
-DISABLE_IRON_SPEAR = false
-SPEARS_THROW_SPEED = 13
-SPEARS_V_ZERO = {x = 0, y = 0, z = 0}
-SPEARS_DRAG_COEFF = 0.1
-SPEARS_NODE_UNKNOWN = nil
-SPEARS_NODE_THROUGH = 0
-SPEARS_NODE_STICKY = 1
-SPEARS_NODE_CRACKY = 2
-SPEARS_NODE_CRACKY_LIMIT = 3

depends.txt

@@ -0,0 +1 @@
+default

functions.lua

@@ -7,39 +7,30 @@ function spears_throw (itemstack, player, pointed_thing)
 	local pitch = player:get_look_vertical()
 	local yaw = player:get_look_horizontal()
 	local rotation = vector.new(0, yaw + math.pi/2, pitch + math.pi/6)
-	local wear = itemstack:get_wear()
-	local pointed_a = pointed_thing.above
-	local pointed_b = pointed_thing.under	
-	if pointed_thing.type == "node" and vector.distance(pointed_a, throw_pos) < 1 then -- Stick into node
-		local node = minetest.get_node(pointed_b)
-		local check_node = spears_check_node(node.name)
-		if check_node == SPEARS_NODE_UNKNOWN then
-			return false
-		elseif check_node == SPEARS_NODE_CRACKY then
-			minetest.sound_play("default_metal_footstep", {pos = pointed_a}, true)
-			return false
-		elseif check_node == SPEARS_NODE_STICKY then
-			local spear_object = minetest.add_entity(vector.divide(vector.add(vector.multiply(pointed_a, 2), pointed_b), 3), spear)
+	-- Plant into node
+	if pointed_thing.type == "node" then
+		local node = minetest.get_node(pointed_thing.under)
+		if minetest.registered_nodes[node.name].walkable and vector.distance(pointed_thing.above, throw_pos) < 1 then
+			local spear_object = minetest.add_entity(vector.divide(vector.add(vector.multiply(pointed_thing.above, 2), pointed_thing.under), 3), spear)
 			spear_object:set_rotation(rotation)
-			spear_object:get_luaentity()._wear = wear
-			spear_object:get_luaentity()._stickpos = pointed_b
-			minetest.sound_play("default_place_node", {pos = pointed_a}, true)
-			return false
+			spear_object:get_luaentity()._wear = itemstack:get_wear()
+			spear_object:get_luaentity()._stickpos = pointed_thing.under
+			return
 		end
-	else -- Avoid hitting yourself and throw
-		local throw_speed = SPEARS_THROW_SPEED
-		while vector.distance(player_pos, throw_pos) < 1.2 do
-			throw_pos = vector.add(throw_pos, vector.multiply(direction, 0.1))
-		end
-		local player_vel = player:get_velocity()
-		local spear_object = minetest.add_entity(throw_pos, spear)
-		spear_object:set_velocity(vector.add(player_vel, vector.multiply(direction, throw_speed)))
-		spear_object:set_rotation(rotation)
-		minetest.sound_play("spears_throw", {pos = player_pos}, true)
-		spear_object:get_luaentity()._wear = wear
-		spear_object:get_luaentity()._stickpos = nil
-		return true
 	end
+	-- Avoid hitting yourself and throw
+	local throw_speed = 12
+	while vector.distance(player_pos, throw_pos) < 1.2 do
+		throw_pos = vector.add(throw_pos, vector.multiply(direction, 0.1))
+	end
+	local player_vel = player:get_player_velocity()
+	local spear_object = minetest.add_entity(throw_pos, spear)
+	spear_object:set_velocity(vector.add(player_vel, vector.multiply(direction, throw_speed)))
+	spear_object:set_rotation(rotation)
+	minetest.sound_play("spears_throw", {pos = player_pos}, true)
+	spear_object:get_luaentity()._wear = itemstack:get_wear()
+	spear_object:get_luaentity()._stickpos = nil
+	return true
 end
 
 function spears_set_entity(spear_type, base_damage, toughness)
@@ -68,27 +59,36 @@ function spears_set_entity(spear_type, base_damage, toughness)
 		end,
 
 		on_step = function(self, dtime)
-			local wear = self._wear
-			if wear == nil then
+			if not self._wear then
 				self.object:remove()
-				return false
+				return
 			end
-			local pos = self.object:get_pos()
 			local velocity = self.object:get_velocity()
 			local speed = vector.length(velocity)
-			if self._stickpos ~= nil then -- Spear is stuck
+			-- Spear is stuck ?
+			if self._stickpos then
 				local node = minetest.get_node(self._stickpos)
-				local check_node = spears_check_node(node.name)
-				if check_node ~= SPEARS_NODE_STICKY then -- Fall when node is removed
+				local node_cracky = minetest.registered_nodes[node.name].groups.cracky
+				if node_cracky and node_cracky < 3 then
+					minetest.sound_play("default_metal_footstep", {pos = pos}, true)
 					self.object:remove()
-					minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
-					return false
+					minetest.add_item(self.object:get_pos(), {name='spears:spear_' .. spear_type, wear = self._wear})
+				elseif not self._node_walkable then
+					minetest.sound_play("default_place_node", {pos = throw_pos}, true)
+				end
+				self._node_walkable = minetest.registered_nodes[node.name].walkable			
+				if not node or not self._node_walkable then -- Fall when node is removed
+					self.object:remove()
+					minetest.add_item(self.object:get_pos(), {name='spears:spear_' .. spear_type, wear = self._wear})
+					return
 				end
 			else -- Spear is flying
 				local direction = vector.normalize(velocity)
 				local yaw = minetest.dir_to_yaw(direction)
 				local pitch = math.acos(velocity.y/speed) - math.pi/3
+				local pos = self.object:get_pos()
 				local spearhead_pos = vector.add(pos, vector.multiply(direction, 0.5))
+				local node = minetest.get_node(spearhead_pos)
 				self.object:set_rotation({x = 0, y = yaw + math.pi/2, z = pitch})
 				-- Hit someone?
 				local objects_in_radius = minetest.get_objects_inside_radius(spearhead_pos, 0.6)
@@ -98,39 +98,26 @@ function spears_set_entity(spear_type, base_damage, toughness)
 						object:punch(self.object, 1.0, {full_punch_interval = 1.0, damage_groups = {fleshy=damage},}, direction)
 						self.object:remove()
 						minetest.sound_play("spears_hit", {pos = pos}, true)
-						wear = spears_wear(wear, toughness)
-						minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
-						return true
+						minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = self._wear + 65535/toughness})
+						return
 					end
 				end
-				-- Hit a node?
-				local node = minetest.get_node(spearhead_pos)
-				local check_node = spears_check_node(node.name)
-				if check_node == SPEARS_NODE_UNKNOWN then
-					self.object:remove()
-					minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
-				elseif check_node ~= SPEARS_NODE_THROUGH then
-					wear = spears_wear(wear, toughness)
-					if wear >= 65535 then
+				-- Hit a node?	
+				if node and minetest.registered_nodes[node.name].walkable
+				and not minetest.registered_nodes[node.name].buildable_to
+				and not (minetest.registered_nodes[node.name].groups.slab and spearhead_pos.y % 1 < 0.5)
+				then -- Stick
+					self.object:set_acceleration({x = 0, y = 0, z = 0})
+					self.object:set_velocity({x = 0, y = 0, z = 0})
+					self._wear = self._wear + 65535/toughness
+					if self._wear >= 65535 then
 						minetest.sound_play("default_tool_breaks", {pos = pos}, true)
 						self.object:remove()
-						minetest.add_item(pos, {name='defaut:stick'})
-						return false
-					elseif check_node == SPEARS_NODE_CRACKY then
-						minetest.sound_play("default_metal_footstep", {pos = pos}, true)
-						self.object:remove()
-						minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
-						return false
-					elseif check_node == SPEARS_NODE_STICKY then
-						self.object:set_acceleration(SPEARS_V_ZERO)
-						self.object:set_velocity(SPEARS_V_ZERO)
-						minetest.sound_play("default_place_node", {pos = pos}, true)
-						self._stickpos = spearhead_pos
-						self._wear = wear
+						return
 					end
-				else -- Get drag
-					local viscosity = minetest.registered_nodes[node.name].liquid_viscosity
-					local drag = math.max(viscosity, SPEARS_DRAG_COEFF)
+					self._stickpos = spearhead_pos
+				else  -- Get drag
+					local drag = math.max(minetest.registered_nodes[node.name].liquid_viscosity, 0.1)
 					local acceleration = vector.multiply(velocity, -drag)
 					acceleration.y = acceleration.y - 10 * ((7 - drag) / 7)
 					self.object:set_acceleration(acceleration)
@@ -140,26 +127,3 @@ function spears_set_entity(spear_type, base_damage, toughness)
 	}
 	return SPEAR_ENTITY
 end
-
-function spears_check_node(node_name)
-	local node = minetest.registered_nodes[node_name]
-	if node == nil then
-		return SPEARS_NODE_UNKNOWN
-	elseif node.groups.cracky ~= nil and node.groups.cracky < SPEARS_NODE_CRACKY_LIMIT then
-		return SPEARS_NODE_CRACKY
-	elseif node.walkable and not node.buildable then
-		return SPEARS_NODE_STICKY
-	else
-		return SPEARS_NODE_THROUGH
-	end
-end
-
-function spears_wear(initial_wear, toughness)
-	if not minetest.settings:get_bool("creative_mode") then
-		local wear = initial_wear + 65535/toughness
-		return wear
-	else
-		local wear = initial_wear
-		return wear
-	end
-end

init.lua

@@ -11,8 +11,5 @@ dofile(minetest.get_modpath("spears").."/functions.lua")
 
 dofile(minetest.get_modpath("spears").."/tools.lua")
 
-local log_mods = minetest.settings:get_bool("log_mods")
 
-if minetest.settings:get_bool("log_mods") then
-	minetest.log("action", "[MOD] Spears loaded")
-end
+minetest.log("action", "[spears] loaded.")

mod.conf

@@ -1,7 +0,0 @@
-name = spears
-depends = default
-description = Add spears to Minetest, versatile weapons that can be thrown
-author = Echoes91
-title = Spears
-min_minetest_version = 5.4
-

spears.conf.example

@@ -3,6 +3,4 @@ DISABLE_STEEL_SPEAR = true
 DISABLE_COPPER_SPEAR = true
 DISABLE_BRONZE_SPEAR = true
 DISABLE_DIAMOND_SPEAR = true
-DISABLE_OBSIDIAN_SPEAR = true
-DISABLE_GOLD_SPEAR = true
-SPEARS_THROW_SPEED = 13
+DISABLE_OBSIDIAN_SPEAR = true

tools.lua

@@ -7,14 +7,14 @@ function spears_register_spear(spear_type, desc, base_damage, toughness, materia
 		wield_scale= {x = 1.5, y = 1.5, z = 1.5},
 		on_secondary_use = function(itemstack, user, pointed_thing)
 			spears_throw(itemstack, user, pointed_thing)
-			if not minetest.settings:get_bool("creative_mode") then
+			if not minetest.setting_getbool("creative_mode") then
 				itemstack:take_item()
 			end
 			return itemstack
 		end,
 		on_place = function(itemstack, user, pointed_thing)
 			spears_throw(itemstack, user, pointed_thing)
-			if not minetest.settings:get_bool("creative_mode") then
+			if not minetest.setting_getbool("creative_mode") then
 				itemstack:take_item()
 			end
 			return itemstack
@@ -38,18 +38,14 @@ function spears_register_spear(spear_type, desc, base_damage, toughness, materia
 	minetest.register_craft({
 		output = 'spears:spear_' .. spear_type,
 		recipe = {
-			{"", "", material},
-			{"", "group:stick", ""},
-			{"group:stick", "", ""}
+			{'group:stick', 'group:stick', material},
 		}
 	})
 	
 	minetest.register_craft({
 		output = 'spears:spear_' .. spear_type,
 		recipe = {
-			{material, "", ""},
-			{"", "group:stick", ""},
-			{"", "", "group:stick"}
+			{material, 'group:stick', 'group:stick'},
 		}
 	})
 end
@@ -58,31 +54,17 @@ if not DISABLE_STONE_SPEAR then
 	spears_register_spear('stone', 'Stone', 4, 20, 'group:stone')
 end
 
-if minetest.get_modpath("pigiron") then
-	if not DISABLE_IRON_SPEAR then
-		spears_register_spear('iron', 'Iron', 5.5, 30, 'pigiron:iron_ingot')
-	end
-	if not DISABLE_STEEL_SPEAR then
-		spears_register_spear('steel', 'Steel', 6, 35, 'default:steel_ingot')
-	end
-	if not DISABLE_COPPER_SPEAR then
-		spears_register_spear('copper', 'Copper', 4.8, 30, 'default:copper_ingot')
-	end
-	if not DISABLE_BRONZE_SPEAR then
-		spears_register_spear('bronze', 'Bronze', 5.5, 35, 'default:bronze_ingot')
-	end
-else
-	if not DISABLE_STEEL_SPEAR then
-		spears_register_spear('steel', 'Steel', 6, 30, 'default:steel_ingot')
-	end
-	if not DISABLE_COPPER_SPEAR then
-		spears_register_spear('copper', 'Copper', 5, 30, 'default:copper_ingot')
-	end
-	if not DISABLE_BRONZE_SPEAR then
-		spears_register_spear('bronze', 'Bronze', 6, 35, 'default:bronze_ingot')
-	end
+if not DISABLE_STEEL_SPEAR then
+	spears_register_spear('steel', 'Steel', 6, 30, 'default:steel_ingot')
 end
 
+if not DISABLE_COPPER_SPEAR then
+	spears_register_spear('copper', 'Copper', 5, 35, 'default:copper_ingot')
+end
+
+if not DISABLE_BRONZE_SPEAR then
+	spears_register_spear('bronze', 'Bronze', 6, 35, 'default:bronze_ingot')
+end
 
 if not DISABLE_OBSIDIAN_SPEAR then
 	spears_register_spear('obsidian', 'Obsidian', 8, 30, 'default:obsidian')