mcl_throwing = {} local S = minetest.get_translator("mcl_throwing") local mod_death_messages = minetest.get_modpath("mcl_death_messages") local mod_fishing = minetest.get_modpath("mcl_fishing") -- -- Snowballs and other throwable items -- local GRAVITY = tonumber(minetest.settings:get("movement_gravity")) local entity_mapping = { ["mcl_throwing:flying_bobber"] = "mcl_throwing:flying_bobber_entity", ["mcl_throwing:snowball"] = "mcl_throwing:snowball_entity", ["mcl_throwing:egg"] = "mcl_throwing:egg_entity", ["mcl_throwing:ender_pearl"] = "mcl_throwing:ender_pearl_entity", } local velocities = { ["mcl_throwing:flying_bobber_entity"] = 5, ["mcl_throwing:snowball_entity"] = 22, ["mcl_throwing:egg_entity"] = 22, ["mcl_throwing:ender_pearl_entity"] = 22, } mcl_throwing.throw = function(throw_item, pos, dir, velocity, thrower) if velocity == nil then velocity = velocities[throw_item] end if velocity == nil then velocity = 22 end local itemstring = ItemStack(throw_item):get_name() local obj = minetest.add_entity(pos, entity_mapping[itemstring]) obj:set_velocity({x=dir.x*velocity, y=dir.y*velocity, z=dir.z*velocity}) obj:set_acceleration({x=dir.x*-3, y=-GRAVITY, z=dir.z*-3}) if thrower then obj:get_luaentity()._thrower = thrower end return obj end -- Throw item local player_throw_function = function(entity_name, velocity) local func = function(item, player, pointed_thing) local playerpos = player:get_pos() local dir = player:get_look_dir() local obj = mcl_throwing.throw(item, {x=playerpos.x, y=playerpos.y+1.5, z=playerpos.z}, dir, velocity, player:get_player_name()) if not minetest.is_creative_enabled(player:get_player_name()) then item:take_item() end return item end return func end local dispense_function = function(stack, dispenserpos, droppos, dropnode, dropdir) -- Launch throwable item local shootpos = vector.add(dispenserpos, vector.multiply(dropdir, 0.51)) mcl_throwing.throw(stack:get_name(), shootpos, dropdir) end -- Staticdata handling because objects may want to be reloaded local get_staticdata = function(self) local thrower -- Only save thrower if it's a player name if type(self._thrower) == "string" then thrower = self._thrower end local data = { _lastpos = self._lastpos, _thrower = thrower, } return minetest.serialize(data) end local on_activate = function(self, staticdata, dtime_s) local data = minetest.deserialize(staticdata) if data then self._lastpos = data._lastpos self._thrower = data._thrower end end -- The snowball entity local snowball_ENTITY={ physical = false, timer=0, textures = {"mcl_throwing_snowball.png"}, visual_size = {x=0.5, y=0.5}, collisionbox = {0,0,0,0,0,0}, pointable = false, get_staticdata = get_staticdata, on_activate = on_activate, _thrower = nil, _lastpos={}, } local egg_ENTITY={ physical = false, timer=0, textures = {"mcl_throwing_egg.png"}, visual_size = {x=0.45, y=0.45}, collisionbox = {0,0,0,0,0,0}, pointable = false, get_staticdata = get_staticdata, on_activate = on_activate, _thrower = nil, _lastpos={}, } -- Ender pearl entity local pearl_ENTITY={ physical = false, timer=0, textures = {"mcl_throwing_ender_pearl.png"}, visual_size = {x=0.9, y=0.9}, collisionbox = {0,0,0,0,0,0}, pointable = false, get_staticdata = get_staticdata, on_activate = on_activate, _lastpos={}, _thrower = nil, -- Player ObjectRef of the player who threw the ender pearl } local flying_bobber_ENTITY={ physical = false, timer=0, textures = {"mcl_fishing_bobber.png"}, --FIXME: Replace with correct texture. visual_size = {x=0.5, y=0.5}, collisionbox = {0,0,0,0,0,0}, pointable = false, get_staticdata = get_staticdata, on_activate = on_activate, _lastpos={}, _thrower = nil, objtype="fishing", } local check_object_hit = function(self, pos, dmg) for _,object in pairs(minetest.get_objects_inside_radius(pos, 1.5)) do local entity = object:get_luaentity() if entity and entity.name ~= self.object:get_luaentity().name then if object:is_player() and self._thrower ~= object:get_player_name() then -- TODO: Deal knockback self.object:remove() return true elseif entity._cmi_is_mob == true and (self._thrower ~= object) then -- FIXME: Knockback is broken object:punch(self.object, 1.0, { full_punch_interval = 1.0, damage_groups = dmg, }, nil) return true end end end return false end local snowball_particles = function(pos, vel) local vel = vector.normalize(vector.multiply(vel, -1)) minetest.add_particlespawner({ amount = 20, time = 0.001, minpos = pos, maxpos = pos, minvel = vector.add({x=-2, y=3, z=-2}, vel), maxvel = vector.add({x=2, y=5, z=2}, vel), minacc = {x=0, y=-9.81, z=0}, maxacc = {x=0, y=-9.81, z=0}, minexptime = 1, maxexptime = 3, minsize = 0.7, maxsize = 0.7, collisiondetection = true, collision_removal = true, object_collision = false, texture = "weather_pack_snow_snowflake"..math.random(1,2)..".png", }) end -- Snowball on_step()--> called when snowball is moving. local snowball_on_step = function(self, dtime) self.timer=self.timer+dtime local pos = self.object:get_pos() local node = minetest.get_node(pos) local def = minetest.registered_nodes[node.name] -- Destroy when hitting a solid node if self._lastpos.x~=nil then if (def and def.walkable) or not def then minetest.sound_play("mcl_throwing_snowball_impact_hard", { pos = self.object:get_pos(), max_hear_distance=16, gain=0.7 }, true) snowball_particles(self._lastpos, self.object:get_velocity()) self.object:remove() return end end if check_object_hit(self, pos, {snowball_vulnerable = 3}) then minetest.sound_play("mcl_throwing_snowball_impact_soft", { pos = self.object:get_pos(), max_hear_distance=16, gain=0.7 }, true) snowball_particles(pos, self.object:get_velocity()) self.object:remove() return end self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set _lastpos-->Node will be added at last pos outside the node end -- Movement function of egg local egg_on_step = function(self, dtime) self.timer=self.timer+dtime local pos = self.object:get_pos() local node = minetest.get_node(pos) local def = minetest.registered_nodes[node.name] -- Destroy when hitting a solid node with chance to spawn chicks if self._lastpos.x~=nil then if (def and def.walkable) or not def then -- 1/8 chance to spawn a chick -- FIXME: Chicks have a quite good chance to spawn in walls local r = math.random(1,8) -- Turn given object into a child local make_child= function(object) local ent = object:get_luaentity() object:set_properties({ visual_size = { x = ent.base_size.x/2, y = ent.base_size.y/2 }, collisionbox = { ent.base_colbox[1]/2, ent.base_colbox[2]/2, ent.base_colbox[3]/2, ent.base_colbox[4]/2, ent.base_colbox[5]/2, ent.base_colbox[6]/2, } }) ent.child = true end if r == 1 then make_child(minetest.add_entity(self._lastpos, "mobs_mc:chicken")) -- BONUS ROUND: 1/32 chance to spawn 3 additional chicks local r = math.random(1,32) if r == 1 then local offsets = { { x=0.7, y=0, z=0 }, { x=-0.7, y=0, z=-0.7 }, { x=-0.7, y=0, z=0.7 }, } for o=1, 3 do local pos = vector.add(self._lastpos, offsets[o]) make_child(minetest.add_entity(pos, "mobs_mc:chicken")) end end end minetest.sound_play("mcl_throwing_egg_impact", { pos = self.object:get_pos(), max_hear_distance=10, gain=0.5 }, true) self.object:remove() return end end -- Destroy when hitting a mob or player (no chick spawning) if check_object_hit(self, pos) then minetest.sound_play("mcl_throwing_egg_impact", { pos = self.object:get_pos(), max_hear_distance=10, gain=0.5 }, true) self.object:remove() return end self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node end -- Movement function of ender pearl local pearl_on_step = function(self, dtime) self.timer=self.timer+dtime local pos = self.object:get_pos() pos.y = math.floor(pos.y) local node = minetest.get_node(pos) local nn = node.name local def = minetest.registered_nodes[node.name] -- Destroy when hitting a solid node if self._lastpos.x~=nil then local walkable = (def and def.walkable) -- No teleport for hitting ignore for now. Otherwise the player could get stuck. -- FIXME: This also means the player loses an ender pearl for throwing into unloaded areas if node.name == "ignore" then self.object:remove() -- Activate when hitting a solid node or a plant elseif walkable or nn == "mcl_core:vine" or nn == "mcl_core:deadbush" or minetest.get_item_group(nn, "flower") ~= 0 or minetest.get_item_group(nn, "sapling") ~= 0 or minetest.get_item_group(nn, "plant") ~= 0 or minetest.get_item_group(nn, "mushroom") ~= 0 or not def then local player = minetest.get_player_by_name(self._thrower) if player then -- Teleport and hurt player -- First determine good teleport position local dir = {x=0, y=0, z=0} local v = self.object:get_velocity() if walkable then local vc = table.copy(v) -- vector for calculating -- Node is walkable, we have to find a place somewhere outside of that node vc = vector.normalize(vc) -- Zero-out the two axes with a lower absolute value than -- the axis with the strongest force local lv, ld lv, ld = math.abs(vc.y), "y" if math.abs(vc.x) > lv then lv, ld = math.abs(vc.x), "x" end if math.abs(vc.z) > lv then lv, ld = math.abs(vc.z), "z" end if ld ~= "x" then vc.x = 0 end if ld ~= "y" then vc.y = 0 end if ld ~= "z" then vc.z = 0 end -- Final tweaks to the teleporting pos, based on direction -- Impact from the side dir.x = vc.x * -1 dir.z = vc.z * -1 -- Special case: top or bottom of node if vc.y > 0 then -- We need more space when impact is from below dir.y = -2.3 elseif vc.y < 0 then -- Standing on top dir.y = 0.5 end end -- If node was not walkable, no modification to pos is made. -- Final teleportation position local telepos = vector.add(pos, dir) local telenode = minetest.get_node(telepos) --[[ It may be possible that telepos is walkable due to the algorithm. Especially when the ender pearl is faster horizontally than vertical. This applies final fixing, just to be sure we're not in a walkable node ]] if not minetest.registered_nodes[telenode.name] or minetest.registered_nodes[telenode.name].walkable then if v.y < 0 then telepos.y = telepos.y + 0.5 else telepos.y = telepos.y - 2.3 end end local oldpos = player:get_pos() -- Teleport and hurt player player:set_pos(telepos) player:set_hp(player:get_hp() - 5, { type = "fall", from = "mod" }) -- 5% chance to spawn endermite at the player's origin local r = math.random(1,20) if r == 1 then minetest.add_entity(oldpos, "mobs_mc:endermite") end end self.object:remove() return end end self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node end -- Movement function of flying bobber local flying_bobber_on_step = function(self, dtime) self.timer=self.timer+dtime local pos = self.object:get_pos() local node = minetest.get_node(pos) local def = minetest.registered_nodes[node.name] --local player = minetest.get_player_by_name(self._thrower) -- Destroy when hitting a solid node if self._lastpos.x~=nil then if (def and (def.walkable or def.liquidtype == "flowing" or def.liquidtype == "source")) or not def then local make_child= function(object) local ent = object:get_luaentity() ent.player = self._thrower ent.child = true end make_child(minetest.add_entity(self._lastpos, "mcl_fishing:bobber_entity")) self.object:remove() return end end self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node end snowball_ENTITY.on_step = snowball_on_step egg_ENTITY.on_step = egg_on_step pearl_ENTITY.on_step = pearl_on_step flying_bobber_ENTITY.on_step = flying_bobber_on_step minetest.register_entity("mcl_throwing:snowball_entity", snowball_ENTITY) minetest.register_entity("mcl_throwing:egg_entity", egg_ENTITY) minetest.register_entity("mcl_throwing:ender_pearl_entity", pearl_ENTITY) minetest.register_entity("mcl_throwing:flying_bobber_entity", flying_bobber_ENTITY) local how_to_throw = S("Use the punch key to throw.") -- Snowball minetest.register_craftitem("mcl_throwing:snowball", { description = S("Snowball"), _tt_help = S("Throwable"), _doc_items_longdesc = S("Snowballs can be thrown or launched from a dispenser for fun. Hitting something with a snowball does nothing."), _doc_items_usagehelp = how_to_throw, inventory_image = "mcl_throwing_snowball.png", stack_max = 16, groups = { weapon_ranged = 1 }, on_use = player_throw_function("mcl_throwing:snowball_entity"), _on_dispense = dispense_function, }) -- Egg minetest.register_craftitem("mcl_throwing:egg", { description = S("Egg"), _tt_help = S("Throwable").."\n"..S("Chance to hatch chicks when broken"), _doc_items_longdesc = S("Eggs can be thrown or launched from a dispenser and breaks on impact. There is a small chance that 1 or even 4 chicks will pop out of the egg."), _doc_items_usagehelp = how_to_throw, inventory_image = "mcl_throwing_egg.png", stack_max = 16, on_use = player_throw_function("mcl_throwing:egg_entity"), _on_dispense = dispense_function, groups = { craftitem = 1 }, }) -- Ender Pearl minetest.register_craftitem("mcl_throwing:ender_pearl", { description = S("Ender Pearl"), _tt_help = S("Throwable").."\n"..minetest.colorize("#FFFF00", S("Teleports you on impact for cost of 5 HP")), _doc_items_longdesc = S("An ender pearl is an item which can be used for teleportation at the cost of health. It can be thrown and teleport the thrower to its impact location when it hits a solid block or a plant. Each teleportation hurts the user by 5 hit points."), _doc_items_usagehelp = how_to_throw, wield_image = "mcl_throwing_ender_pearl.png", inventory_image = "mcl_throwing_ender_pearl.png", stack_max = 16, on_use = player_throw_function("mcl_throwing:ender_pearl_entity"), groups = { transport = 1 }, })