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Introduce default.do_with_area
This commit is contained in:
Lars Mueller
parent
0351c66915
commit
23415c7e16
3 changed files with 157 additions and 198 deletions
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@ -294,12 +294,8 @@ end
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local function tnt_explode(pos, radius, ignore_protection, ignore_on_blast, owner, explode_center)
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pos = vector.round(pos)
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-- scan for adjacent TNT nodes first, and enlarge the explosion
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local vm1 = VoxelManip()
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local p1 = vector.subtract(pos, 2)
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local p2 = vector.add(pos, 2)
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local minp, maxp = vm1:read_from_map(p1, p2)
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local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
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local data = vm1:get_data()
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-- TODO given that we're looking at a fraction of a mapblock here,
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-- there is probably little reason to use VoxelManip.
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local count = 0
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local c_tnt
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local c_tnt_burning = minetest.get_content_id("tnt:tnt_burning")
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@ -311,88 +307,74 @@ local function tnt_explode(pos, radius, ignore_protection, ignore_on_blast, owne
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else
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c_tnt = c_tnt_burning -- tnt is not registered if disabled
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end
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-- make sure we still have explosion even when centre node isnt tnt related
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if explode_center then
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count = 1
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end
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for z = pos.z - 2, pos.z + 2 do
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for y = pos.y - 2, pos.y + 2 do
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local vi = a:index(pos.x - 2, y, z)
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for x = pos.x - 2, pos.x + 2 do
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local cid = data[vi]
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if cid == c_tnt or cid == c_tnt_boom or cid == c_tnt_burning then
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count = count + 1
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data[vi] = c_air
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end
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vi = vi + 1
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default.do_with_area(pos:subtract(2), pos:add(2), function(a, data)
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-- make sure we still have explosion even when centre node isnt tnt related
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if explode_center then
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count = 1
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end
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end
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end
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vm1:set_data(data)
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vm1:write_to_map()
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if vm1.close ~= nil then
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vm1:close()
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end
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for z = pos.z - 2, pos.z + 2 do
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for y = pos.y - 2, pos.y + 2 do
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local vi = a:index(pos.x - 2, y, z)
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for x = pos.x - 2, pos.x + 2 do
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local cid = data[vi]
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if cid == c_tnt or cid == c_tnt_boom or cid == c_tnt_burning then
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count = count + 1
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data[vi] = c_air
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end
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vi = vi + 1
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end
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end
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end
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end)
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-- recalculate new radius
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radius = math.floor(radius * math.pow(count, 1/3))
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-- perform the explosion
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local vm = VoxelManip()
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local pr = PseudoRandom(os.time())
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p1 = vector.subtract(pos, radius)
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p2 = vector.add(pos, radius)
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minp, maxp = vm:read_from_map(p1, p2)
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a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
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data = vm:get_data()
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local drops = {}
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local on_blast_queue = {}
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local on_construct_queue = {}
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basic_flame_on_construct = minetest.registered_nodes["fire:basic_flame"].on_construct
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-- Used to efficiently remove metadata of nodes that were destroyed.
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-- Metadata is probably sparse, so this may save us some work.
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local has_meta = {}
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for _, p in ipairs(minetest.find_nodes_with_meta(p1, p2)) do
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has_meta[a:indexp(p)] = true
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end
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local p1, p2 = pos:subtract(radius), pos:add(radius)
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default.do_with_area(p1, p2, function(a, data) -- luacheck: ignore
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-- Used to efficiently remove metadata of nodes that were destroyed.
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-- Metadata is probably sparse, so this may save us some work.
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local has_meta = {}
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for _, p in ipairs(minetest.find_nodes_with_meta(p1, p2)) do
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has_meta[a:indexp(p)] = true
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end
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local c_fire = minetest.get_content_id("fire:basic_flame")
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for z = -radius, radius do
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for y = -radius, radius do
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local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
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for x = -radius, radius do
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local r = vector.length(vector.new(x, y, z))
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if (radius * radius) / (r * r) >= (pr:next(80, 125) / 100) then
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local cid = data[vi]
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local p = {x = pos.x + x, y = pos.y + y, z = pos.z + z}
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if cid ~= c_air and cid ~= c_ignore then
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local new_cid = destroy(drops, p, cid, c_air, c_fire,
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on_blast_queue, on_construct_queue,
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ignore_protection, ignore_on_blast, owner)
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local c_fire = minetest.get_content_id("fire:basic_flame")
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for z = -radius, radius do
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for y = -radius, radius do
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local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
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for x = -radius, radius do
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local r = vector.length(vector.new(x, y, z))
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if (radius * radius) / (r * r) >= (pr:next(80, 125) / 100) then
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local cid = data[vi]
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local p = {x = pos.x + x, y = pos.y + y, z = pos.z + z}
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if cid ~= c_air and cid ~= c_ignore then
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local new_cid = destroy(drops, p, cid, c_air, c_fire,
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on_blast_queue, on_construct_queue,
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ignore_protection, ignore_on_blast, owner)
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if new_cid ~= data[vi] then
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data[vi] = new_cid
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if has_meta[vi] then
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minetest.get_meta(p):from_table(nil)
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if new_cid ~= data[vi] then
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data[vi] = new_cid
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if has_meta[vi] then
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minetest.get_meta(p):from_table(nil)
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end
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end
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end
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end
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vi = vi + 1
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end
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vi = vi + 1
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end
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end
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end
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vm:set_data(data)
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vm:write_to_map()
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vm:update_liquids()
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if vm.close ~= nil then
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vm:close()
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end
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end
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end
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end)
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-- call check_single_for_falling for everything within 1.5x blast radius
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for y = -radius * 1.5, radius * 1.5 do
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