124 lines
3.1 KiB
Lua
124 lines
3.1 KiB
Lua
local settings = Settings(minetest.get_modpath("waterfalls") .. "/waterfalls.conf")
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local ledgeh = settings:get('ledge_height') or 3
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local neighbors_p = {
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{x=1},{x=-1},
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{z=1},{z=-1}
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}
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local neighbors_p2 = {
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{x=2},{x=-2},
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{z=2},{z=-2}
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}
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local neighbors_d = {
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{x=1,z=1},
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{x=1,z=-1},
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{x=-1,z=1},
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{x=-1,z=-1}
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}
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local pos_shift = function(pos,vec)
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vec.x=vec.x or 0
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vec.y=vec.y or 0
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vec.z=vec.z or 0
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return {x=pos.x+vec.x,
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y=pos.y+vec.y,
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z=pos.z+vec.z}
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end
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local get_nodename_off = function(pos,vec)
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return minetest.get_node(pos_shift(pos,vec)).name
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end
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local get_neighbors_walkable = function(pos)
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local ret = 0
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for _,v in ipairs(neighbors_p) do
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if minetest.registered_nodes[get_nodename_off(pos,v)].walkable then
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ret = ret+1
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end
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end
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return ret
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end
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minetest.register_abm({
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label="Erosion_crumb",
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nodenames = {"group:crumbly","group:snowy"},
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neighbors = {"default:water_flowing"},
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interval = 0.2,
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chance = 1,
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catch_up = false,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local node1up = get_nodename_off(pos,{y=1})
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if minetest.registered_nodes[node1up].drawtype == "flowingliquid" then
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if get_neighbors_walkable(pos) < 4 then
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minetest.remove_node(pos)
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minetest.remove_node(pos_shift(pos,{y=1}))
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for _,v in ipairs(neighbors_p) do
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local node = get_nodename_off(pos,v)
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v2=pos_shift(v,{y=1})
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local node2 = get_nodename_off(pos,v2)
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if (minetest.get_item_group(node,"crumbly")>0 or
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minetest.get_item_group(node,"snowy")>0) and not
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minetest.registered_nodes[node2].walkable then
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minetest.remove_node(pos_shift(pos,v))
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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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minetest.register_abm({
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label="Erosion_stone",
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nodenames = {"group:stone","default:ice"},
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neighbors = {"default:water_flowing"},
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interval = 1,
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chance = 2,
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catch_up = false,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local node2up = minetest.get_node(pos_shift(pos,{y=2}))
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local node1up = minetest.get_node(pos_shift(pos,{y=1}))
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if pos.y % ledgeh ~= 0 then
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if minetest.registered_nodes[node1up.name].drawtype == "flowingliquid" and
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get_neighbors_walkable(pos) <= 2 then
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minetest.remove_node(pos)
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return
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end
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end
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if minetest.registered_nodes[node2up.name].drawtype ~= "flowingliquid" and
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minetest.registered_nodes[node1up.name].drawtype == "flowingliquid" then
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local node
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local vec
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for _,v in ipairs(neighbors_p) do
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node = minetest.get_node(pos_shift(pos,v))
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if minetest.registered_nodes[node.name].drawtype == "flowingliquid" then
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vec = {x=v.x*-1,y=v.y+1,z=v.z*-1}
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node = minetest.get_node(pos_shift(pos,vec))
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if minetest.registered_nodes[node.name].walkable then
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minetest.remove_node(pos)
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return
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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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minetest.register_abm({
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label="Erosion_flora",
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nodenames = {"group:attached_node"},
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neighbors = {"default:water_flowing"},
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interval = 0.2,
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chance = 1,
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catch_up = false,
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action = function(pos, node, active_object_count, active_object_count_wider)
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minetest.remove_node(pos)
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end
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})
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