Version 3.0

CHANGELOG

@@ -1,3 +1,7 @@
+Version 3.0:
+- First attempt to detect collisionboxes
+- Implemented settings through settingtypes.txt, deprecating "spears.conf"
+
 Version 2.4:
 - Functions rewrite, fixed many vector/variable declarations and unknown node handling
 - Added pigiron support

README

@@ -1,28 +0,0 @@
-=== SPEARS for MINETEST by Echoes91 ===
-
-This mod adds spears to Minetest.
-
-How to download:
-If you have this file, you already know
-
-Forum topic:
-https://forum.minetest.net/viewtopic.php?f=11&t=13367
-
-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.
-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.
-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

@@ -1,16 +1,30 @@
-DISABLE_STONE_SPEAR = false
-DISABLE_STEEL_SPEAR = false
-DISABLE_COPPER_SPEAR = false
-DISABLE_BRONZE_SPEAR = false
-DISABLE_DIAMOND_SPEAR = false
-DISABLE_OBSIDIAN_SPEAR = false
-DISABLE_GOLD_SPEAR = false
-DISABLE_IRON_SPEAR = false
-SPEARS_THROW_SPEED = 13
+-- Seems like defaults in settingtypes.txt are not taken by default
+if minetest.settings:get("spears_throw_speed") == nil then
+	minetest.settings:set("spears_throw_speed", 13)
+end
+
+if minetest.settings:get("spears_drag_coeff") == nil then
+	minetest.settings:set("spears_drag_coeff", 0.1)
+end
+
+if minetest.settings:get("spears_node_cracky_limit") == nil then
+	minetest.settings:set("spears_node_cracky_limit", 3)
+end
+
+
+-- DISABLE_STONE_SPEAR = false
+-- DISABLE_STEEL_SPEAR = false
+-- DISABLE_COPPER_SPEAR = false
+-- 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_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
+-- SPEARS_NODE_CRACKY_LIMIT = 3

functions.lua

@@ -27,7 +27,7 @@ function spears_throw (itemstack, player, pointed_thing)
 			return false
 		end
 	else -- Avoid hitting yourself and throw
-		local throw_speed = SPEARS_THROW_SPEED
+		local throw_speed = tonumber(minetest.settings:get("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
@@ -90,10 +90,10 @@ function spears_set_entity(spear_type, base_damage, toughness)
 				local pitch = math.acos(velocity.y/speed) - math.pi/3
 				local spearhead_pos = vector.add(pos, vector.multiply(direction, 0.5))
 				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)
+				-- Hit a target?
+				local objects_in_radius = minetest.get_objects_inside_radius(spearhead_pos, 1)
 				for _,object in ipairs(objects_in_radius) do
-					if object:get_luaentity() ~= self and object:get_armor_groups().fleshy then
+					if spears_check_target(self, object, spearhead_pos) and object:get_armor_groups().fleshy then
 						local damage = (speed + base_damage)^1.15 - 20
 						object:punch(self.object, 1.0, {full_punch_interval = 1.0, damage_groups = {fleshy=damage},}, direction)
 						self.object:remove()
@@ -130,7 +130,8 @@ function spears_set_entity(spear_type, base_damage, toughness)
 					end
 				else -- Get drag
 					local viscosity = minetest.registered_nodes[node.name].liquid_viscosity
-					local drag = math.max(viscosity, SPEARS_DRAG_COEFF)
+					local drag_coeff = tonumber(minetest.settings:get("spears_drag_coeff"))
+					local drag = math.max(viscosity, drag_coeff)
 					local acceleration = vector.multiply(velocity, -drag)
 					acceleration.y = acceleration.y - 10 * ((7 - drag) / 7)
 					self.object:set_acceleration(acceleration)
@@ -143,11 +144,12 @@ end
 
 function spears_check_node(node_name)
 	local node = minetest.registered_nodes[node_name]
+	local cracky_limit = tonumber(minetest.settings:get("spears_node_cracky_limit"))
 	if node == nil then
 		return SPEARS_NODE_UNKNOWN
-	elseif node.groups.cracky ~= nil and node.groups.cracky < SPEARS_NODE_CRACKY_LIMIT then
+	elseif node.groups.cracky ~= nil and node.groups.cracky < cracky_limit then
 		return SPEARS_NODE_CRACKY
-	elseif node.walkable and not node.buildable then
+	elseif node.walkable and not node.buildable_to then
 		return SPEARS_NODE_STICKY
 	else
 		return SPEARS_NODE_THROUGH
@@ -163,3 +165,59 @@ function spears_wear(initial_wear, toughness)
 		return wear
 	end
 end
+
+function spears_check_target(self, object, spearhead_pos)
+	if object:get_luaentity() == self then
+		return false
+	elseif isPointInsideEntity(object, spearhead_pos) then
+		-- print(self.name .. " hit " .. object:get_luaentity().name)
+		return true
+	else
+		-- print(self.name .. " missed " .. object:get_luaentity().name)
+		return false
+	end
+end
+
+-- Function to check if a point is inside an entity
+function isPointInsideEntity(object, point)
+    local pos = object:get_pos()
+    local collisionbox = object:get_properties().collisionbox
+    local yaw = object:get_yaw()
+
+    -- Adjust position for the center of the collision box
+    local center = {
+        x = pos.x + (collisionbox[1] + collisionbox[4]) / 2,
+        y = pos.y + (collisionbox[2] + collisionbox[5]) / 2,
+        z = pos.z + (collisionbox[3] + collisionbox[6]) / 2
+    }
+
+    -- Rotate the point around the entity's center
+    local rotatedPoint = rotatePoint(point, center, yaw)
+
+    -- Check if the rotated point is inside the collision box
+    return rotatedPoint.x >= pos.x + collisionbox[1] and
+           rotatedPoint.x <= pos.x + collisionbox[4] and
+           rotatedPoint.y >= pos.y + collisionbox[2] and
+           rotatedPoint.y <= pos.y + collisionbox[5] and
+           rotatedPoint.z >= pos.z + collisionbox[3] and
+           rotatedPoint.z <= pos.z + collisionbox[6]
+end
+
+-- Function to rotate a point around a center and yaw angle
+function rotatePoint(point, center, yaw)
+    local cosYaw = math.cos(yaw)
+    local sinYaw = math.sin(yaw)
+
+    local translatedX = point.x - center.x
+    local translatedZ = point.z - center.z
+
+    local rotatedX = translatedX * cosYaw - translatedZ * sinYaw
+    local rotatedZ = translatedX * sinYaw + translatedZ * cosYaw
+
+    return {
+        x = rotatedX + center.x,
+        y = point.y,
+        z = rotatedZ + center.z
+    }
+end
+

init.lua

@@ -1,18 +1,14 @@
 dofile(minetest.get_modpath("spears").."/defaults.lua")
 
-local input = io.open(minetest.get_modpath("spears").."/spears.conf", "r")
-if input then
-	dofile(minetest.get_modpath("spears").."/spears.conf")
-	input:close()
-	input = nil
-end
+-- local input = io.open(minetest.get_modpath("spears").."/spears.conf", "r")
+-- if input then
+--	dofile(minetest.get_modpath("spears").."/spears.conf")
+--	input:close()
+--	input = nil
+-- end
 
 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", "[MOD] Spears loaded with throwing speed " .. minetest.settings:get("spears_throw_speed") .. " and drag coeff. " .. minetest.settings:get("spears_drag_coeff"))

mod.conf

@@ -1,6 +1,8 @@
 name = spears
 depends = default
+optional_depends = pigiron
 description = Add spears to Minetest, versatile weapons that can be thrown
+release = 3.0
 author = Echoes91
 title = Spears
 min_minetest_version = 5.4

spears.conf.example

@@ -1,8 +0,0 @@
-DISABLE_STONE_SPEAR = true
-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

tools.lua

@@ -54,44 +54,44 @@ function spears_register_spear(spear_type, desc, base_damage, toughness, materia
 	})
 end
 
-if not DISABLE_STONE_SPEAR then
+if minetest.settings:get_bool('spears_enable_stone_spear') then
 	spears_register_spear('stone', 'Stone', 4, 20, 'group:stone')
+	minetest.log("info", "[MOD] Stone spear enabled")
 end
 
 if minetest.get_modpath("pigiron") then
-	if not DISABLE_IRON_SPEAR then
+	if minetest.settings:get_bool('spears_enable_iron_spear') then
 		spears_register_spear('iron', 'Iron', 5.5, 30, 'pigiron:iron_ingot')
 	end
-	if not DISABLE_STEEL_SPEAR then
+	if minetest.settings:get_bool('spears_enable_steel_spear') then
 		spears_register_spear('steel', 'Steel', 6, 35, 'default:steel_ingot')
 	end
-	if not DISABLE_COPPER_SPEAR then
+	if minetest.settings:get_bool('spears_enable_copper_spear') then
 		spears_register_spear('copper', 'Copper', 4.8, 30, 'default:copper_ingot')
 	end
-	if not DISABLE_BRONZE_SPEAR then
+	if minetest.settings:get_bool('spears_enable_bronze_spear') then
 		spears_register_spear('bronze', 'Bronze', 5.5, 35, 'default:bronze_ingot')
 	end
 else
-	if not DISABLE_STEEL_SPEAR then
+	if minetest.settings:get_bool('spears_enable_steel_spear') then
 		spears_register_spear('steel', 'Steel', 6, 30, 'default:steel_ingot')
 	end
-	if not DISABLE_COPPER_SPEAR then
+	if minetest.settings:get_bool('spears_enable_copper_spear') then
 		spears_register_spear('copper', 'Copper', 5, 30, 'default:copper_ingot')
 	end
-	if not DISABLE_BRONZE_SPEAR then
+	if minetest.settings:get_bool('spears_enable_bronze_spear') then
 		spears_register_spear('bronze', 'Bronze', 6, 35, 'default:bronze_ingot')
 	end
 end
 
-
-if not DISABLE_OBSIDIAN_SPEAR then
+if minetest.settings:get_bool('spears_enable_obsidian_spear') then
 	spears_register_spear('obsidian', 'Obsidian', 8, 30, 'default:obsidian')
 end
 
-if not DISABLE_DIAMOND_SPEAR then
+if minetest.settings:get_bool('spears_enable_diamond_spear') then
 	spears_register_spear('diamond', 'Diamond', 8, 40, 'default:diamond')
 end
 
-if not DISABLE_GOLD_SPEAR then
+if minetest.settings:get_bool('spears_enable_gold_spear') then
 	spears_register_spear('gold', 'Golden', 5, 40, 'default:gold_ingot')
 end