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MineClone2/mods/ITEMS/mcl_farming/shared_functions.lua

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local plant_lists = {}
function mcl_farming:add_plant(identifier, full_grown, names, interval, chance)
plant_lists[identifier] = {}
plant_lists[identifier].full_grown = full_grown
plant_lists[identifier].names = names
minetest.register_abm({
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label = string.format("Farming plant growth (%s)", identifier),
nodenames = names,
interval = interval,
chance = chance,
action = function(pos, node)
if minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name ~= "mcl_farming:soil_wet" and math.random(0, 9) > 0 then
return
else
mcl_farming:grow_plant(identifier, pos, node)
end
end,
})
end
-- Attempts to advance a plant at pos by one or more growth stages (if possible)
-- identifier: Identifier of plant as defined by mcl_farming:add_plant
-- pos: Position
-- node: Node table
-- stages: Number of stages to advance (optional, defaults to 1)
-- Returns true if plant has been grown by 1 or more stages.
-- Returns false if nothing changed.
function mcl_farming:grow_plant(identifier, pos, node, stages)
if not minetest.get_node_light(pos) then
return false
end
if minetest.get_node_light(pos) < 10 then
return false
end
local plant_info = plant_lists[identifier]
local step = nil
for i, name in ipairs(plant_info.names) do
if name == node.name then
step = i
break
end
end
if step == nil then
return false
end
if not stages then
stages = 1
end
local new_node = {name = plant_info.names[step+stages]}
if new_node.name == nil then
new_node.name = plant_info.full_grown
end
new_node.param = node.param
new_node.param2 = node.param2
minetest.set_node(pos, new_node)
return true
end
function mcl_farming:place_seed(itemstack, placer, pointed_thing, plantname)
local pt = pointed_thing
if not pt then
return
end
if pt.type ~= "node" then
return
end
-- Use pointed node's on_rightclick function first, if present
local node = minetest.get_node(pt.under)
if placer and not placer:get_player_control().sneak then
if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
return minetest.registered_nodes[node.name].on_rightclick(pt.under, node, placer, itemstack) or itemstack
end
end
local pos = {x=pt.above.x, y=pt.above.y-1, z=pt.above.z}
local farmland = minetest.get_node(pos)
pos= {x=pt.above.x, y=pt.above.y, z=pt.above.z}
local place_s = minetest.get_node(pos)
if string.find(farmland.name, "mcl_farming:soil") and string.find(place_s.name, "air") then
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minetest.sound_play(minetest.registered_nodes[plantname].sounds.place, {pos = pos})
minetest.add_node(pos, {name=plantname, param2 = minetest.registered_nodes[plantname].place_param2})
else
return
end
if not minetest.settings:get_bool("creative_mode") then
itemstack:take_item()
end
return itemstack
end
--[[ Helper function to create a gourd (e.g. melon, pumpkin), the connected stem nodes as
- full_unconnected_stem: itemstring of the full-grown but unconnceted stem node. This node must already be done
- connected_stem_basename: prefix of the itemstrings used for the 4 connected stem nodes to create
- stem_itemstring: Desired itemstring of the fully-grown unconnected stem node
- stem_def: Partial node definition of the fully-grown unconnected stem node. Many fields are already defined. You need to add `tiles` and `description` at minimum. Don't define on_construct without good reason
- stem_drop: Drop probability table for all stem
- gourd_itemstring: Desired itemstring of the full gourd node
- gourd_def: (almost) full definition of the gourd node. This function will add on_construct and after_dig_node to the definition for unconnecting any connected stems
- grow_interval: Will attempt to grow a gourd periodically at this interval in seconds
- grow_chance: Chance of 1/grow_chance to grow a gourd next to the full unconnected stem after grow_interval has passed. Must be a natural number
- connected_stem_texture: Texture of the connected stem
- gourd_on_construct_extra: Custom on_construct extra function for the gourd. Will be called after the stem check code
]]
function mcl_farming:add_gourd(full_unconnected_stem, connected_stem_basename, stem_itemstring, stem_def, stem_drop, gourd_itemstring, gourd_def, grow_interval, grow_chance, connected_stem_texture, gourd_on_construct_extra)
local connected_stem_names = {
connected_stem_basename .. "_r",
connected_stem_basename .. "_l",
connected_stem_basename .. "_t",
connected_stem_basename .. "_b",
}
local neighbors = {
{ x=-1, y=0, z=0 },
{ x=1, y=0, z=0 },
{ x=0, y=0, z=-1 },
{ x=0, y=0, z=1 },
}
-- Connect the stem at stempos to the first neighboring gourd block.
-- No-op if not a stem or no gourd block found
local try_connect_stem = function(stempos)
local stem = minetest.get_node(stempos)
if stem.name ~= full_unconnected_stem then
return false
end
for n=1, #neighbors do
local offset = neighbors[n]
local blockpos = vector.add(stempos, offset)
local block = minetest.get_node(blockpos)
if block.name == gourd_itemstring then
if offset.x == 1 then
minetest.set_node(stempos, {name=connected_stem_names[1]})
elseif offset.x == -1 then
minetest.set_node(stempos, {name=connected_stem_names[2]})
elseif offset.z == 1 then
minetest.set_node(stempos, {name=connected_stem_names[3]})
elseif offset.z == -1 then
minetest.set_node(stempos, {name=connected_stem_names[4]})
end
return true
end
end
end
-- Register gourd
if not gourd_def.after_dig_node then
gourd_def.after_dig_node = function(blockpos, oldnode, oldmetadata, user)
-- Disconnect any connected stems, turning them back to normal stems
for n=1, #neighbors do
local offset = neighbors[n]
local expected_stem = connected_stem_names[n]
local stempos = vector.add(blockpos, offset)
local stem = minetest.get_node(stempos)
if stem.name == expected_stem then
minetest.add_node(stempos, {name=full_unconnected_stem})
try_connect_stem(stempos)
end
end
end
end
if not gourd_def.on_construct then
gourd_def.on_construct = function(blockpos)
-- Connect all unconnected stems at full size
for n=1, #neighbors do
local stempos = vector.add(blockpos, neighbors[n])
try_connect_stem(stempos)
end
-- Call custom on_construct
if gourd_on_construct_extra then
gourd_on_construct_extra(blockpos)
end
end
end
minetest.register_node(gourd_itemstring, gourd_def)
-- Register unconnected stem
-- Default values for the stem definition
if not stem_def.selection_box then
stem_def.selection_box = {
type = "fixed",
fixed = {
{-0.15, -0.5, -0.15, 0.15, 0.5, 0.15}
},
}
end
if not stem_def.paramtype then
stem_def.paramtype = "light"
end
if not stem_def.drawtype then
stem_def.drawtype = "plantlike"
end
if stem_def.walkable == nil then
stem_def.walkable = false
end
if stem_def.sunlight_propagates == nil then
stem_def.sunlight_propagates = true
end
if stem_def.drop == nil then
stem_def.drop = stem_drop
end
if stem_def.groups == nil then
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stem_def.groups = {dig_immediate=3, not_in_creative_inventory=1, plant=1,attached_node=1, dig_by_water=1,destroy_by_lava_flow=1,}
end
if stem_def.sounds == nil then
stem_def.sounds = mcl_sounds.node_sound_leaves_defaults()
end
if not stem_def.on_construct then
stem_def.on_construct = function(stempos)
-- Connect stem to gourd (if possible)
try_connect_stem(stempos)
end
end
minetest.register_node(stem_itemstring, stem_def)
-- Register connected stems
local connected_stem_tiles = {
{ "blank.png", --top
"blank.png", -- bottom
"blank.png", -- right
"blank.png", -- left
connected_stem_texture, -- back
connected_stem_texture.."^[transformFX90" --front
},
{ "blank.png", --top
"blank.png", -- bottom
"blank.png", -- right
"blank.png", -- left
connected_stem_texture.."^[transformFX90", --back
connected_stem_texture, -- front
},
{ "blank.png", --top
"blank.png", -- bottom
connected_stem_texture.."^[transformFX90", -- right
connected_stem_texture, -- left
"blank.png", --back
"blank.png", -- front
},
{ "blank.png", --top
"blank.png", -- bottom
connected_stem_texture, -- right
connected_stem_texture.."^[transformFX90", -- left
"blank.png", --back
"blank.png", -- front
}
}
local connected_stem_nodebox = {
{-0.5, -0.5, 0, 0.5, 0.5, 0},
{-0.5, -0.5, 0, 0.5, 0.5, 0},
{0, -0.5, -0.5, 0, 0.5, 0.5},
{0, -0.5, -0.5, 0, 0.5, 0.5},
}
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local connected_stem_selectionbox = {
{-0.1, -0.5, -0.1, 0.5, 0.2, 0.1},
{-0.5, -0.5, -0.1, 0.1, 0.2, 0.1},
{-0.1, -0.5, -0.1, 0.1, 0.2, 0.5},
{-0.1, -0.5, -0.5, 0.1, 0.2, 0.1},
}
for i=1, 4 do
minetest.register_node(connected_stem_names[i], {
_doc_items_create_entry = false,
paramtype = "light",
sunlight_propagates = true,
walkable = false,
drop = stem_drop,
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = connected_stem_nodebox[i]
},
selection_box = {
type = "fixed",
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fixed = connected_stem_selectionbox[i]
},
tiles = connected_stem_tiles[i],
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groups = {dig_immediate=3, not_in_creative_inventory=1, plant=1,attached_node=1, dig_by_water=1,destroy_by_lava_flow=1,},
sounds = mcl_sounds.node_sound_leaves_defaults(),
_mcl_blast_resistance = 0,
})
if minetest.get_modpath("doc") then
doc.add_entry_alias("nodes", full_unconnected_stem, "nodes", connected_stem_names[i])
end
end
minetest.register_abm({
label = "Grow gourd stem to gourd ("..full_unconnected_stem..""..gourd_itemstring..")",
nodenames = {full_unconnected_stem},
neighbors = {"air"},
interval = grow_interval,
chance = grow_chance,
action = function(stempos)
local light = minetest.get_node_light(stempos)
if light and light > 10 then
-- Check the four neighbors and filter out neighbors where gourds can't grow
local neighbors = {
{ x=-1, y=0, z=0 },
{ x=1, y=0, z=0 },
{ x=0, y=0, z=-1 },
{ x=0, y=0, z=1 },
}
local floorpos, floor
for n=#neighbors, 1, -1 do
local offset = neighbors[n]
local blockpos = vector.add(stempos, offset)
floorpos = { x=blockpos.x, y=blockpos.y-1, z=blockpos.z }
floor = minetest.get_node(floorpos)
local block = minetest.get_node(blockpos)
local soilgroup = minetest.get_item_group(floor.name, "soil")
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if not ((minetest.get_item_group(floor.name, "grass_block") == 1 or floor.name=="mcl_core:dirt" or soilgroup == 2 or soilgroup == 3) and block.name == "air") then
table.remove(neighbors, n)
end
end
-- Gourd needs at least 1 free neighbor to grow
if #neighbors > 0 then
-- From the remaining neighbors, grow randomly
local r = math.random(1, #neighbors)
local offset = neighbors[r]
local blockpos = vector.add(stempos, offset)
local p2
if offset.x == 1 then
minetest.set_node(stempos, {name=connected_stem_names[1]})
p2 = 3
elseif offset.x == -1 then
minetest.set_node(stempos, {name=connected_stem_names[2]})
p2 = 1
elseif offset.z == 1 then
minetest.set_node(stempos, {name=connected_stem_names[3]})
p2 = 2
elseif offset.z == -1 then
minetest.set_node(stempos, {name=connected_stem_names[4]})
p2 = 0
end
-- Place the gourd
if gourd_def.paramtype2 == "facedir" then
minetest.add_node(blockpos, {name=gourd_itemstring, param2=p2})
else
minetest.add_node(blockpos, {name=gourd_itemstring})
end
-- Reset farmland, etc. to dirt when the gourd grows on top
if minetest.get_item_group(floor.name, "dirtifies_below_solid") == 1 then
minetest.set_node(floorpos, {name = "mcl_core:dirt"})
end
end
end
end,
})
end
-- Used for growing gourd stems. Returns the intermediate color between startcolor and endcolor at a step
-- * startcolor: ColorSpec in table form for the stem in its lowest growing stage
-- * endcolor: ColorSpec in table form for the stem in its final growing stage
-- * step: The nth growth step. Counting starts at 1
-- * step_count: The number of total growth steps
function mcl_farming:stem_color(startcolor, endcolor, step, step_count)
local color = {}
local function get_component(startt, endd, step, step_count)
return math.floor(math.max(0, math.min(255, (startt + (((step-1)/step_count) * endd)))))
end
color.r = get_component(startcolor.r, endcolor.r, step, step_count)
color.g = get_component(startcolor.g, endcolor.g, step, step_count)
color.b = get_component(startcolor.b, endcolor.b, step, step_count)
local colorstring = string.format("#%02X%02X%02X", color.r, color.g, color.b)
return colorstring
end