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minetest_game/mods/farming/api.lua
codeandfix ff0973fa4f Update api.lua
added protection for seed placement and hoeing
2015-09-29 21:01:20 +01:00

324 lines
7.9 KiB
Lua

-- Wear out hoes, place soil
-- TODO Ignore group:flower
farming.hoe_on_use = function(itemstack, user, pointed_thing, uses)
local pt = pointed_thing
-- check if pointing at a node
if not pt then
return
end
if pt.type ~= "node" then
return
end
local under = minetest.get_node(pt.under)
local p = {x=pt.under.x, y=pt.under.y+1, z=pt.under.z}
local above = minetest.get_node(p)
-- return if any of the nodes is not registered
if not minetest.registered_nodes[under.name] then
return
end
if not minetest.registered_nodes[above.name] then
return
end
-- check if the node above the pointed thing is air
if above.name ~= "air" then
return
end
-- check if pointing at soil
if minetest.get_item_group(under.name, "soil") ~= 1 then
return
end
-- check if (wet) soil defined
local regN = minetest.registered_nodes
if regN[under.name].soil == nil or regN[under.name].soil.wet == nil or regN[under.name].soil.dry == nil then
return
end
if minetest.is_protected(pt.under, user:get_player_name()) then
minetest.record_protection_violation(pt.under, user:get_player_name())
return
end
if minetest.is_protected(pt.above, user:get_player_name()) then
minetest.record_protection_violation(pt.above, user:get_player_name())
return
end
-- turn the node into soil, wear out item and play sound
minetest.set_node(pt.under, {name = regN[under.name].soil.dry})
minetest.sound_play("default_dig_crumbly", {
pos = pt.under,
gain = 0.5,
})
if not minetest.setting_getbool("creative_mode") then
itemstack:add_wear(65535/(uses-1))
end
return itemstack
end
-- Register new hoes
farming.register_hoe = function(name, def)
-- Check for : prefix (register new hoes in your mod's namespace)
if name:sub(1,1) ~= ":" then
name = ":" .. name
end
-- Check def table
if def.description == nil then
def.description = "Hoe"
end
if def.inventory_image == nil then
def.inventory_image = "unknown_item.png"
end
if def.recipe == nil then
def.recipe = {
{"air","air",""},
{"","group:stick",""},
{"","group:stick",""}
}
end
if def.max_uses == nil then
def.max_uses = 30
end
-- Register the tool
minetest.register_tool(name, {
description = def.description,
inventory_image = def.inventory_image,
on_use = function(itemstack, user, pointed_thing)
return farming.hoe_on_use(itemstack, user, pointed_thing, def.max_uses)
end
})
-- Register its recipe
if def.material == nil then
minetest.register_craft({
output = name:sub(2),
recipe = def.recipe
})
else
minetest.register_craft({
output = name:sub(2),
recipe = {
{def.material, def.material, ""},
{"", "group:stick", ""},
{"", "group:stick", ""}
}
})
-- Reverse Recipe
minetest.register_craft({
output = name:sub(2),
recipe = {
{"", def.material, def.material},
{"", "group:stick", ""},
{"", "group:stick", ""}
}
})
end
end
-- Seed placement
farming.place_seed = function(itemstack, placer, pointed_thing, plantname)
local pt = pointed_thing
-- check if pointing at a node
if not pt then
return
end
if pt.type ~= "node" then
return
end
local under = minetest.get_node(pt.under)
local above = minetest.get_node(pt.above)
if minetest.is_protected(pt.under, placer:get_player_name()) then
minetest.record_protection_violation(pt.under, placer:get_player_name())
return
end
if minetest.is_protected(pt.above, placer:get_player_name()) then
minetest.record_protection_violation(pt.above, placer:get_player_name())
return
end
-- return if any of the nodes is not registered
if not minetest.registered_nodes[under.name] then
return
end
if not minetest.registered_nodes[above.name] then
return
end
-- check if pointing at the top of the node
if pt.above.y ~= pt.under.y+1 then
return
end
-- check if you can replace the node above the pointed node
if not minetest.registered_nodes[above.name].buildable_to then
return
end
-- check if pointing at soil
if minetest.get_item_group(under.name, "soil") < 2 then
return
end
-- add the node and remove 1 item from the itemstack
minetest.add_node(pt.above, {name = plantname, param2 = 1})
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
return itemstack
end
-- Register plants
farming.register_plant = function(name, def)
local mname = name:split(":")[1]
local pname = name:split(":")[2]
-- Check def table
if not def.description then
def.description = "Seed"
end
if not def.inventory_image then
def.inventory_image = "unknown_item.png"
end
if not def.steps then
return nil
end
if not def.minlight then
def.minlight = 1
end
if not def.maxlight then
def.maxlight = 14
end
if not def.fertility then
def.fertility = {}
end
-- Register seed
local g = {seed = 1, snappy = 3, attached_node = 1}
for k, v in pairs(def.fertility) do
g[v] = 1
end
minetest.register_node(":" .. mname .. ":seed_" .. pname, {
description = def.description,
tiles = {def.inventory_image},
inventory_image = def.inventory_image,
wield_image = def.inventory_image,
drawtype = "signlike",
groups = g,
paramtype = "light",
paramtype2 = "wallmounted",
walkable = false,
sunlight_propagates = true,
selection_box = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
},
fertility = def.fertility,
on_place = function(itemstack, placer, pointed_thing)
return farming.place_seed(itemstack, placer, pointed_thing, mname .. ":seed_" .. pname)
end
})
-- Register harvest
minetest.register_craftitem(":" .. mname .. ":" .. pname, {
description = pname:gsub("^%l", string.upper),
inventory_image = mname .. "_" .. pname .. ".png",
})
-- Register growing steps
for i=1,def.steps do
local drop = {
items = {
{items = {mname .. ":" .. pname}, rarity = 9 - i},
{items = {mname .. ":" .. pname}, rarity= 18 - i * 2},
{items = {mname .. ":seed_" .. pname}, rarity = 9 - i},
{items = {mname .. ":seed_" .. pname}, rarity = 18 - i * 2},
}
}
local nodegroups = {snappy = 3, flammable = 2, plant = 1, not_in_creative_inventory = 1, attached_node = 1}
nodegroups[pname] = i
minetest.register_node(mname .. ":" .. pname .. "_" .. i, {
drawtype = "plantlike",
waving = 1,
tiles = {mname .. "_" .. pname .. "_" .. i .. ".png"},
paramtype = "light",
walkable = false,
buildable_to = true,
drop = drop,
selection_box = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
},
groups = nodegroups,
sounds = default.node_sound_leaves_defaults(),
})
end
-- Growing ABM
minetest.register_abm({
nodenames = {"group:" .. pname, "group:seed"},
neighbors = {"group:soil"},
interval = 90,
chance = 2,
action = function(pos, node)
local plant_height = minetest.get_item_group(node.name, pname)
-- return if already full grown
if plant_height == def.steps then
return
end
local node_def = minetest.registered_items[node.name] or nil
-- grow seed
if minetest.get_item_group(node.name, "seed") and node_def.fertility then
local can_grow = false
local soil_node = minetest.get_node_or_nil({x = pos.x, y = pos.y - 1, z = pos.z})
if not soil_node then
return
end
for _, v in pairs(node_def.fertility) do
if minetest.get_item_group(soil_node.name, v) ~= 0 then
can_grow = true
end
end
if can_grow then
minetest.set_node(pos, {name = node.name:gsub("seed_", "") .. "_1"})
end
return
end
-- check if on wet soil
pos.y = pos.y - 1
local n = minetest.get_node(pos)
if minetest.get_item_group(n.name, "soil") < 3 then
return
end
pos.y = pos.y + 1
-- check light
local ll = minetest.get_node_light(pos)
if not ll or ll < def.minlight or ll > def.maxlight then
return
end
-- grow
minetest.set_node(pos, {name = mname .. ":" .. pname .. "_" .. plant_height + 1})
end
})
-- Return
local r = {
seed = mname .. ":seed_" .. pname,
harvest = mname .. ":" .. pname
}
return r
end