-- More trees!  2013-04-07
--
-- This mod adds more types of trees to the game
--
-- Some of the node definitions and textures came from cisoun's conifers mod 
-- and bas080's jungle trees mod.
--
-- Brought together into one mod and made L-systems compatible by Vanessa
-- Ezekowitz.
--
-- Firs and Jungle tree axioms/rules by Vanessa Ezekowitz, with the 
-- latter having been tweaked by RealBadAngel, most other axioms/rules written
-- by RealBadAngel.
--
-- License: WTFPL for all parts (code and textures, including those copied
-- from the jungletree and conifers mods) except the default jungle tree trunk
-- texture, which is CC-By-SA.

moretrees = {}

-- Read the default config file (and if necessary, copy it to the world folder).

local worldpath=minetest.get_worldpath()
local modpath=minetest.get_modpath("moretrees")

dofile(modpath.."/default_settings.txt")

if io.open(worldpath.."/moretrees_settings.txt","r") == nil then

	io.input(modpath.."/default_settings.txt")
	io.output(worldpath.."/moretrees_settings.txt")

	local size = 2^13      -- good buffer size (8K)
	while true do
		local block = io.read(size)
		if not block then
			io.close()
			break
		end
		io.write(block)
	end
else
	dofile(worldpath.."/moretrees_settings.txt")
end

-- Boilerplate to support localized strings if intllib mod is installed.

local S
if moretrees.intllib_modpath then
    dofile(moretrees.intllib_modpath.."/intllib.lua")
    S = intllib.Getter(minetest.get_current_modname())
else
    S = function ( s ) return s end
end
moretrees.gettext = S

-- infinite stacks checking

if minetest.get_modpath("unified_inventory") or not minetest.setting_getbool("creative_mode") then
	moretrees.expect_infinite_stacks = false
else
	moretrees.expect_infinite_stacks = true
end

-- node clone, for redefining stuff

function moretrees:clone_node(name)
	node2={}
	node=minetest.registered_nodes[name]
	for k,v in pairs(node) do
		node2[k]=v
	end
	return node2
end

-- tables, load other files

moretrees.cutting_tools = {
	"default:axe_bronze",
	"default:axe_diamond",
	"default:axe_mese",
	"default:axe_steel",
	"glooptest:axe_alatro",
	"glooptest:axe_arol",
	"moreores:axe_mithril",
	"moreores:axe_silver",
	"titanium:axe",
}

dofile(modpath.."/ownership.lua")
dofile(modpath.."/tree_models.lua")
dofile(modpath.."/node_defs.lua")
dofile(modpath.."/biome_defs.lua")
dofile(modpath.."/saplings.lua")
dofile(modpath.."/crafts.lua")
dofile(modpath.."/leafdecay.lua")

-- tree spawning setup

if moretrees.spawn_saplings then
	moretrees.spawn_beech_object = "moretrees:beech_sapling_ongen"
	moretrees.spawn_apple_tree_object = "moretrees:apple_tree_sapling_ongen"
	moretrees.spawn_oak_object = "moretrees:oak_sapling_ongen"
	moretrees.spawn_sequoia_object = "moretrees:sequoia_sapling_ongen"
	moretrees.spawn_palm_object = "moretrees:palm_sapling_ongen"
	moretrees.spawn_pine_object = "moretrees:pine_sapling_ongen"
	moretrees.spawn_rubber_tree_object = "moretrees:rubber_tree_sapling_ongen"
	moretrees.spawn_willow_object = "moretrees:willow_sapling_ongen"
	moretrees.spawn_birch_object = "moretrees:birch_sapling_ongen"
	moretrees.spawn_spruce_object = "moretrees:spruce_sapling_ongen"
	moretrees.spawn_jungletree_object = "moretrees:jungletree_sapling_ongen"
	moretrees.spawn_fir_object = "moretrees:fir_sapling_ongen"
	moretrees.spawn_fir_snow_object = "snow:sapling_pine"
else
	moretrees.spawn_beech_object = moretrees.beech_model
	moretrees.spawn_apple_tree_object = moretrees.apple_tree_model
	moretrees.spawn_oak_object = moretrees.oak_model
	moretrees.spawn_sequoia_object = moretrees.sequoia_model
	moretrees.spawn_palm_object = moretrees.palm_model
	moretrees.spawn_pine_object = moretrees.pine_model
	moretrees.spawn_rubber_tree_object = moretrees.rubber_tree_model
	moretrees.spawn_willow_object = moretrees.willow_model
	moretrees.spawn_birch_object = "moretrees:grow_birch"
	moretrees.spawn_spruce_object = "moretrees:grow_spruce"
	moretrees.spawn_jungletree_object = "moretrees:grow_jungletree"
	moretrees.spawn_fir_object = "moretrees:grow_fir"
	moretrees.spawn_fir_snow_object = "moretrees:grow_fir_snow"
end


if moretrees.enable_beech then
	plantslib:register_generate_plant(moretrees.beech_biome, moretrees.spawn_beech_object)
end

if moretrees.enable_apple_tree then
	plantslib:register_generate_plant(moretrees.apple_tree_biome, moretrees.spawn_apple_tree_object)
end

if moretrees.enable_oak then
	plantslib:register_generate_plant(moretrees.oak_biome, moretrees.spawn_oak_object)
end

if moretrees.enable_sequoia then
	plantslib:register_generate_plant(moretrees.sequoia_biome, moretrees.spawn_sequoia_object)
end

if moretrees.enable_palm then
	plantslib:register_generate_plant(moretrees.palm_biome, moretrees.spawn_palm_object)
end

if moretrees.enable_pine then
	plantslib:register_generate_plant(moretrees.pine_biome, moretrees.spawn_pine_object)
end

if moretrees.enable_rubber_tree then
	plantslib:register_generate_plant(moretrees.rubber_tree_biome, moretrees.spawn_rubber_tree_object)
end

if moretrees.enable_willow then
	plantslib:register_generate_plant(moretrees.willow_biome, moretrees.spawn_willow_object)
end

if moretrees.enable_birch then
	plantslib:register_generate_plant(moretrees.birch_biome, moretrees.spawn_birch_object)
end

if moretrees.enable_spruce then
	plantslib:register_generate_plant(moretrees.spruce_biome, moretrees.spawn_spruce_object)
end

if moretrees.enable_jungle_tree then
	plantslib:register_generate_plant(moretrees.jungletree_biome, moretrees.spawn_jungletree_object)
end

if moretrees.enable_fir then
	plantslib:register_generate_plant(moretrees.fir_biome, moretrees.spawn_fir_object)
	plantslib:register_generate_plant(moretrees.fir_biome_snow, moretrees.spawn_fir_snow_object)
end

-- Code to spawn a birch tree

function moretrees:grow_birch(pos)
	minetest.remove_node(pos)
	if math.random(1,2) == 1 then
		minetest.spawn_tree(pos, moretrees.birch_model1)
	else
		minetest.spawn_tree(pos, moretrees.birch_model2)
	end
end

-- Code to spawn a spruce tree

function moretrees:grow_spruce(pos)
	minetest.remove_node(pos)
	if math.random(1,2) == 1 then
		minetest.spawn_tree(pos, moretrees.spruce_model1)
	else
		minetest.spawn_tree(pos, moretrees.spruce_model2)
	end
end

-- Code to spawn jungle trees

moretrees.jt_axiom1 = "FFFA"
moretrees.jt_rules_a1 = "FFF[&&-FBf[&&&Ff]^^^Ff][&&+FBFf[&&&FFf]^^^Ff][&&---FBFf[&&&Ff]^^^Ff][&&+++FBFf[&&&Ff]^^^Ff]F/A"
moretrees.jt_rules_b1 = "[-Ff&f][+Ff&f]B"

moretrees.jt_axiom2 = "FFFFFA"
moretrees.jt_rules_a2 = "FFFFF[&&-FFFBF[&&&FFff]^^^FFf][&&+FFFBFF[&&&FFff]^^^FFf][&&---FFFBFF[&&&FFff]^^^FFf][&&+++FFFBFF[&&&FFff]^^^FFf]FF/A"
moretrees.jt_rules_b2 = "[-FFf&ff][+FFf&ff]B"

moretrees.ct_rules_a1 = "FF[FF][&&-FBF][&&+FBF][&&---FBF][&&+++FBF]F/A"
moretrees.ct_rules_b1 = "[-FBf][+FBf]"

moretrees.ct_rules_a2 = "FF[FF][&&-FBF][&&+FBF][&&---FBF][&&+++FBF]F/A"
moretrees.ct_rules_b2 = "[-fB][+fB]"

function moretrees:grow_jungletree(pos)
	local r1 = math.random(2)
	local r2 = math.random(3)
	if r1 == 1 then
		moretrees.jungletree_model.leaves2 = "moretrees:jungletree_leaves_red"
	else 
		moretrees.jungletree_model.leaves2 = "moretrees:jungletree_leaves_yellow"
	end
	moretrees.jungletree_model.leaves2_chance = math.random(25, 75)

	if r2 == 1 then
		moretrees.jungletree_model.trunk_type = "single"
		moretrees.jungletree_model.iterations = 2
		moretrees.jungletree_model.axiom = moretrees.jt_axiom1
		moretrees.jungletree_model.rules_a = moretrees.jt_rules_a1
		moretrees.jungletree_model.rules_b = moretrees.jt_rules_b1
	elseif r2 == 2 then
		moretrees.jungletree_model.trunk_type = "double"
		moretrees.jungletree_model.iterations = 4
		moretrees.jungletree_model.axiom = moretrees.jt_axiom2
		moretrees.jungletree_model.rules_a = moretrees.jt_rules_a2
		moretrees.jungletree_model.rules_b = moretrees.jt_rules_b2
	elseif r2 == 3 then
		moretrees.jungletree_model.trunk_type = "crossed"
		moretrees.jungletree_model.iterations = 4
		moretrees.jungletree_model.axiom = moretrees.jt_axiom2
		moretrees.jungletree_model.rules_a = moretrees.jt_rules_a2
		moretrees.jungletree_model.rules_b = moretrees.jt_rules_b2
	end

	minetest.remove_node(pos)
	local leaves = minetest.find_nodes_in_area({x = pos.x-1, y = pos.y, z = pos.z-1}, {x = pos.x+1, y = pos.y+10, z = pos.z+1}, "default:leaves")
	for leaf in ipairs(leaves) do
			minetest.remove_node(leaves[leaf])
	end
	minetest.spawn_tree(pos, moretrees.jungletree_model)
end

-- code to spawn fir trees

function moretrees:grow_fir(pos)
	if math.random(2) == 1 then
		moretrees.fir_model.leaves="moretrees:fir_leaves"
	else
		moretrees.fir_model.leaves="moretrees:fir_leaves_bright"
	end
	if math.random(2) == 1 then
		moretrees.fir_model.rules_a = moretrees.ct_rules_a1
		moretrees.fir_model.rules_b = moretrees.ct_rules_b1
	else
		moretrees.fir_model.rules_a = moretrees.ct_rules_a2
		moretrees.fir_model.rules_b = moretrees.ct_rules_b2
	end

	moretrees.fir_model.iterations = 7
	moretrees.fir_model.random_level = 5

	minetest.remove_node(pos)
	local leaves = minetest.find_nodes_in_area({x = pos.x, y = pos.y, z = pos.z}, {x = pos.x, y = pos.y+5, z = pos.z}, "default:leaves")
	for leaf in ipairs(leaves) do
			minetest.remove_node(leaves[leaf])
	end
	minetest.spawn_tree(pos,moretrees.fir_model)
end

-- same thing, but a smaller version that grows only in snow biomes

function moretrees:grow_fir_snow(pos)
	if math.random(2) == 1 then
		moretrees.fir_model.leaves="moretrees:fir_leaves"
	else
		moretrees.fir_model.leaves="moretrees:fir_leaves_bright"
	end
	if math.random(2) == 1 then
		moretrees.fir_model.rules_a = moretrees.ct_rules_a1
		moretrees.fir_model.rules_b = moretrees.ct_rules_b1
	else
		moretrees.fir_model.rules_a = moretrees.ct_rules_a2
		moretrees.fir_model.rules_b = moretrees.ct_rules_b2
	end

	moretrees.fir_model.iterations = 2
	moretrees.fir_model.random_level = 2

	minetest.remove_node(pos)
	local leaves = minetest.find_nodes_in_area({x = pos.x, y = pos.y, z = pos.z}, {x = pos.x, y = pos.y+5, z = pos.z}, "default:leaves")
	for leaf in ipairs(leaves) do
			minetest.remove_node(leaves[leaf])
	end
	minetest.spawn_tree(pos,moretrees.fir_model)
end

print("[Moretrees] Loaded (2013-02-11)")
