forked from mtcontrib/minetest-mod-snow
415 lines
12 KiB
Lua
415 lines
12 KiB
Lua
--[[
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Snow Biomes
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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]]--
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snow = {}
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dofile(minetest.get_modpath("snow").."/mapgen.lua")
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dofile(minetest.get_modpath("snow").."/config.lua")
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--Replace leaves so snow gets removed on decay.
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local leaves = {}
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for k,v in pairs(minetest.registered_nodes["default:leaves"]) do
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leaves[k] = v
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end
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leaves.after_destruct = function(pos, node, digger)
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pos.y = pos.y + 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "snow:snow" then
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minetest.env:remove_node(pos)
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end
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end
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minetest.register_node(":default:leaves", leaves)
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--Pine leaves.
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minetest.register_node("snow:needles", {
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description = "Pine Needles",
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drawtype = "allfaces_optional",
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visual_scale = 1.3,
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tiles = {"snow_needles.png"},
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paramtype = "light",
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groups = {snappy=3, leafdecay=3, flammable=2},
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drop = {
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max_items = 1,
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items = {
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{
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-- player will get sapling with 1/20 chance
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items = {'snow:sapling_pine'},
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rarity = 20,
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},
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{
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-- player will get leaves only if he get no saplings,
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-- this is because max_items is 1
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items = {'snow:needles'},
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}
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}
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},
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--Remove snow above leaves after decay.
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after_destruct = function(pos, node, digger)
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pos.y = pos.y + 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "snow:snow" then
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minetest.env:remove_node(pos)
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end
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end,
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sounds = default.node_sound_leaves_defaults(),
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})
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minetest.register_node("snow:sapling_pine", {
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description = "Pine Sapling",
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drawtype = "plantlike",
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visual_scale = 1.0,
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tiles = {"snow_sapling_pine.png"},
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inventory_image = "snow_sapling_pine.png",
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wield_image = "snow_sapling_pine.png",
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paramtype = "light",
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walkable = false,
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groups = {snappy=2,dig_immediate=3,flammable=2},
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sounds = default.node_sound_defaults(),
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})
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--Snowballs
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-------------
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snowball_GRAVITY=9
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snowball_VELOCITY=19
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--Shoot snowball.
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local snow_shoot_snowball=function (item, player, pointed_thing)
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local playerpos=player:getpos()
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local obj=minetest.env:add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, "snow:snowball_entity")
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local dir=player:get_look_dir()
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obj:setvelocity({x=dir.x*snowball_VELOCITY, y=dir.y*snowball_VELOCITY, z=dir.z*snowball_VELOCITY})
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obj:setacceleration({x=dir.x*-3, y=-snowball_GRAVITY, z=dir.z*-3})
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item:take_item()
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return item
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end
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--The snowball Entity
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snow_snowball_ENTITY={
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physical = false,
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timer=0,
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textures = {"snow_snowball.png"},
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lastpos={},
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collisionbox = {0,0,0,0,0,0},
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}
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--Snowball_entity.on_step()--> called when snowball is moving.
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snow_snowball_ENTITY.on_step = function(self, dtime)
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self.timer=self.timer+dtime
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local pos = self.object:getpos()
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local node = minetest.env:get_node(pos)
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--Become item when hitting a node.
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if self.lastpos.x~=nil then --If there is no lastpos for some reason.
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if node.name ~= "air" then
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minetest.env:place_node(self.lastpos,{name="snow:snow"})
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self.object:remove()
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end
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end
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self.lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node
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end
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minetest.register_entity("snow:snowball_entity", snow_snowball_ENTITY)
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--Snowball.
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minetest.register_craftitem("snow:snowball", {
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description = "Snowball",
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inventory_image = "snow_snowball.png",
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on_use = snow_shoot_snowball,
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})
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--Snow.
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minetest.register_node("snow:snow", {
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description = "Snow",
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tiles = {"snow_snow.png"},
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drawtype = "nodebox",
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sunlight_propagates = true,
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paramtype = "light",
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param2 = nil,
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--param2 is reserved for what vegetation is hiding inside.
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--mapgen defines the vegetation.
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--1 = Moss
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groups = {crumbly=3,melts=3},
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buildable_to = true,
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drop = 'snow:snowball',
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node_box = {
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type = "fixed",
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fixed = {
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{-0.5, -0.5, -0.5, 0.5, -0.35, 0.5}
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},
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},
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selection_box = {
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type = "fixed",
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fixed = {
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{-0.5, -0.5, -0.5, 0.5, -0.35, 0.5}
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},
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},
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sounds = default.node_sound_dirt_defaults({
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footstep = {name="default_gravel_footstep", gain=0.45},
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}),
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--Update dirt node underneath snow.
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after_destruct = function(pos, node, digger)
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if node.param2 == 1 then
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local n = minetest.env:get_node(pos).name
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if n == "air" or n == "default:water_flowing" or n == "default:water_source" then
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minetest.env:add_node(pos,{name="snow:moss",param2=1})
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end
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end
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pos.y = pos.y - 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "snow:dirt_with_snow" then
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minetest.env:add_node(pos,{name="default:dirt_with_grass"})
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end
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end,
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on_construct = function(pos, newnode)
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pos.y = pos.y - 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "default:dirt_with_grass" then
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minetest.env:remove_node(pos)
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minetest.env:add_node(pos,{name="snow:dirt_with_snow"})
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elseif nodename == "air" then
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pos.y = pos.y + 1
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minetest.env:remove_node(pos)
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end
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end,
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})
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--Snow with dirt.
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minetest.register_node("snow:dirt_with_snow", {
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description = "Dirt with Snow",
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tiles = {"snow_snow.png", "default_dirt.png", "default_dirt.png^snow_snow_side.png"},
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is_ground_content = true,
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groups = {crumbly=3},
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drop = 'default:dirt',
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sounds = default.node_sound_dirt_defaults({
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footstep = {name="default_grass_footstep", gain=0.4},
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}),
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--Place snow above this node when placed.
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after_place_node = function(pos, newnode)
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pos.y = pos.y + 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "air" then
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minetest.env:add_node(pos,{name="snow:snow"})
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end
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end,
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})
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--Gets rid of snow when the node underneath is dug.
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local unsnowify = function(pos, node, digger)
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if node.name == "default:dry_shrub" then
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pos.y = pos.y - 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "snow:dirt_with_snow" then
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minetest.env:add_node(pos,{name="default:dirt_with_grass"})
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end
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pos.y = pos.y + 1
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end
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pos.y = pos.y + 1
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local nodename = minetest.env:get_node(pos).name
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if nodename == "snow:snow" then
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minetest.env:remove_node(pos)
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local obj=minetest.env:add_entity({x=pos.x,y=pos.y,z=pos.z}, "snow:snowball_entity")
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obj:setacceleration({x=0, y=-snowball_GRAVITY, z=0})
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end
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end
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minetest.register_on_dignode(unsnowify)
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--Snow block.
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minetest.register_node("snow:snow_block", {
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description = "Snow",
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tiles = {"snow_snow.png"},
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is_ground_content = true,
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groups = {crumbly=3,melts=2,falling_node=1},
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drop = 'snow:snow_block',
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sounds = default.node_sound_dirt_defaults({
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footstep = {name="default_grass_footstep", gain=0.4},
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}),
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})
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--Ice.
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minetest.register_node("snow:ice", {
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description = "Ice",
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tiles = {"snow_ice.png"},
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is_ground_content = true,
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groups = {snappy=2,cracky=3,melts=1},
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drop = 'snow:ice',
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paramtype = "light",
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sunlight_propagates = true,
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sounds = default.node_sound_glass_defaults({
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footstep = {name="default_stone_footstep", gain=0.4},
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}),
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})
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--Moss.
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minetest.register_node("snow:moss", {
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description = "Moss",
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tiles = {"snow_moss.png"},
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drawtype = "signlike",
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paramtype = "light",
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paramtype2 = "wallmounted",
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walkable = false,
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selection_box = {
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type = "wallmounted",
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},
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is_ground_content = true,
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groups = {crumbly=3},
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})
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minetest.register_craft({
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output = 'snow:snow_block',
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recipe = {
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{'snow:snowball', 'snow:snowball'},
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{'snow:snowball', 'snow:snowball'},
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},
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})
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--Melting
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--Any node part of the group melting will melt when near warm nodes such as lava, fire, torches, etc.
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--The amount of water that replaces the node is defined by the number on the group:
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--1: one water_source
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--2: four water_flowings
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--3: one water_flowing
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minetest.register_abm({
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nodenames = {"group:melts"},
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neighbors = {"group:igniter","default:torch","default:furnace_active","group:hot"},
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interval = 2,
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chance = 2,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local intensity = minetest.get_item_group(node.name,"melts")
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if intensity == 1 then
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minetest.env:add_node(pos,{name="default:water_source"})
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elseif intensity == 2 then
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local check_place = function(pos,node)
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if minetest.env:get_node(pos).name == "air" then
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minetest.env:place_node(pos,node)
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end
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end
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minetest.env:add_node(pos,{name="default:water_flowing"})
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check_place({x=pos.x+1,y=pos.y,z=pos.z},{name="default:water_flowing"})
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check_place({x=pos.x-1,y=pos.y,z=pos.z},{name="default:water_flowing"})
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check_place({x=pos.x,y=pos.y+1,z=pos.z},{name="default:water_flowing"})
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check_place({x=pos.x,y=pos.y-1,z=pos.z},{name="default:water_flowing"})
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elseif intensity == 3 then
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minetest.env:add_node(pos,{name="default:water_flowing"})
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end
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nodeupdate(pos)
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end,
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})
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--Freezing
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--Water freezes when in contact with snow.
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minetest.register_abm({
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nodenames = {"default:water_source"},
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neighbors = {"snow:snow", "snow:snow_block"},
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interval = 20,
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chance = 4,
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action = function(pos, node, active_object_count, active_object_count_wider)
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minetest.env:add_node(pos,{name="snow:ice"})
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end,
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})
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--Spread moss to cobble.
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minetest.register_abm({
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nodenames = {"default:cobble"},
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neighbors = {"snow:moss"},
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interval = 20,
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chance = 6,
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action = function(pos, node, active_object_count, active_object_count_wider)
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minetest.env:add_node(pos,{name="default:mossycobble"})
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end,
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})
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--Grow saplings
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minetest.register_abm({
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nodenames = {"snow:sapling_pine"},
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interval = 10,
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chance = 50,
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action = function(pos, node, active_object_count, active_object_count_wider)
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snow.make_pine(pos,false)
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end,
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})
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if snow.enable_snowfall then
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--Snowing (WIP)
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snow_fall=function (pos)
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local obj=minetest.env:add_entity(pos, "snow:fall_entity")
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obj:setvelocity({x=0, y=-1, z=0})
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end
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-- The snowfall Entity
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snow_fall_ENTITY={
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physical = true,
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timer=0,
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textures = {"snow_snowfall.png"},
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lastpos={},
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collisionbox = {0,0,0,0,0,0},
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}
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-- snowfall_entity.on_step()--> called when snow is falling
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snow_fall_ENTITY.on_step = function(self, dtime)
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self.timer=self.timer+dtime
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local pos = self.object:getpos()
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local node = minetest.env:get_node(pos)
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if self.object:getvelocity().y == 0 then
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minetest.env:place_node(self.lastpos,{name="snow:snow"})
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self.object:remove()
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end
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self.lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node
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end
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minetest.register_entity("snow:fall_entity", snow_fall_ENTITY)
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--Snowing abm
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minetest.register_abm({
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nodenames = {"default:dirt_with_grass"},
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interval = 30,
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chance = 50,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local env = minetest.env
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local perlin1 = env:get_perlin(112,3, 0.5, 150)
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local test = perlin1:get2d({x=pos.x, y=pos.z})
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if test > 0.53 then
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if pos.y >= -10 then
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if not env:find_node_near(pos, 10, "default:desert_sand") then
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local ground_y = nil
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for y=10,0,-1 do
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if env:get_node({x=pos.x,y=y,z=pos.z}).name ~= "air" then
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ground_y = y
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break
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end
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end
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if ground_y then
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local n = env:get_node({x=pos.x,y=ground_y,z=pos.z})
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if math.random(4) == 1 or (n.name ~= "snow:snow" and n.name ~= "snow:snow_block" and n.name ~= "snow:ice" and n.name ~= "default:water_source") then
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snow_fall({x=pos.x,y=ground_y+15,z=pos.z})
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if snow.debug then
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print("snowfall at x"..pos.x.." y"..pos.z)
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end
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end
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end
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end
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end
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end
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end
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})
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end
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