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optimize out table.insert() and ipairs() calls

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This commit is contained in:
Vanessa Ezekowitz 2014-08-14 23:12:43 -04:00
parent d1aae719d0
commit 6bc8fead15
1 changed files with 18 additions and 13 deletions
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31
plants_lib/init.lua
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@ -104,7 +104,7 @@ plantslib.actions_list = {}
plantslib.surface_nodes = {}
local function search_table(t, s)
for i in ipairs(t) do
for i = 1, #t do
if t[i] == s then return true end
end
return false
@ -118,16 +118,17 @@ function plantslib:register_generate_plant(biomedef, node_or_function_or_model)
print("==>> Called legacy mapgen code for "..dump(node_or_function_or_model))
minetest.register_on_generated(plantslib:generate_block_legacy(minp, maxp, biomedef, node_or_function_or_model))
else
table.insert(plantslib.actions_list, { biomedef, node_or_function_or_model })
plantslib.actions_list[#plantslib.actions_list + 1] = { biomedef, node_or_function_or_model }
local s = biomedef.surface
if type(s) == "string" then
if not search_table(plantslib.surfaces_list, s) then
table.insert(plantslib.surfaces_list, s)
plantslib.surfaces_list[#plantslib.surfaces_list + 1] = s
end
else
for _, s in ipairs(biomedef.surface) do
for i = 1, #biomedef.surface do
local s = biomedef.surface[i]
if not search_table(plantslib.surfaces_list, s) then
table.insert(plantslib.surfaces_list, s)
plantslib.surfaces_list[#plantslib.surfaces_list + 1] = s
end
end
end
@ -146,15 +147,16 @@ function plantslib:generate_block(minp, maxp, blockseed)
-- search the generated block for surfaces
plantslib.surface_nodes.blockhash = {}
for _, pos in ipairs(search_area) do
for i = 1, #search_area do
local pos = search_area[i]
local p_top = { x=pos.x, y=pos.y+1, z=pos.z }
if minetest.get_node(p_top).name == "air" then
table.insert(plantslib.surface_nodes.blockhash, pos)
plantslib.surface_nodes.blockhash[#plantslib.surface_nodes.blockhash + 1] = pos
end
end
for action in ipairs(plantslib.actions_list) do
for action = 1, #plantslib.actions_list do
local biome = plantslib.actions_list[action][1]
local node_or_function_or_model = plantslib.actions_list[action][2]
@ -163,7 +165,9 @@ function plantslib:generate_block(minp, maxp, blockseed)
-- filter stage 1 - find nodes from the supplied surfaces that are within the current biome.
local in_biome_nodes = {}
for _ , pos in ipairs(plantslib.surface_nodes.blockhash) do
for i = 1, #plantslib.surface_nodes.blockhash do
local pos = plantslib.surface_nodes.blockhash[i]
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
local perlin1 = minetest.get_perlin(biome.seed_diff, perlin_octaves, perlin_persistence, perlin_scale)
local noise1 = perlin1:get2d({x=pos.x, y=pos.z})
@ -184,7 +188,7 @@ function plantslib:generate_block(minp, maxp, blockseed)
and math.random(1,100) > biome.rarity
and (not biome.below_nodes or string.find(dump(biome.below_nodes), minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name) )
then
table.insert(in_biome_nodes, pos)
in_biome_nodes[#in_biome_nodes + 1] = pos
end
end
@ -517,7 +521,8 @@ function plantslib:generate_block_legacy(minp, maxp, biomedef, node_or_function_
local searchnodes = minetest.find_nodes_in_area(minp, maxp, biome.surface)
local in_biome_nodes = {}
for _ , pos in ipairs(searchnodes) do
for i = 1, #searchnodes do
local pos = searchnodes[i]
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
local perlin1 = minetest.get_perlin(biome.seed_diff, perlin_octaves, perlin_persistence, perlin_scale)
local noise1 = perlin1:get2d({x=p_top.x, y=p_top.z})
@ -537,7 +542,7 @@ function plantslib:generate_block_legacy(minp, maxp, biomedef, node_or_function_
and math.random(1,100) > biome.rarity
and (not biome.below_nodes or string.find(dump(biome.below_nodes), minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name) )
then
table.insert(in_biome_nodes, pos)
in_biome_nodes[#in_biome_nodes + 1] = pos
end
end