added better group-based ground detection
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Sokomine
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106
mapgen.lua
106
mapgen.lua
@ -135,52 +135,17 @@ if( minetest.get_modpath( 'mg' )) then
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MG_VILLAGES_WATER_LEVEL = 0;
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end
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--replacements_group.node_is_ground = {}; -- store nodes which have previously been identified as ground
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-- air and ignore are definitely no ground on which players can stand
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-- replacements_group.node_is_ground is defined in handle_schematics
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replacements_group.node_is_ground[ minetest.get_content_id('air' )] = false
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replacements_group.node_is_ground[ minetest.get_content_id('ignore')] = false
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-- can we use this as a ground node in the village?
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mg_villages.check_if_ground = function( ci )
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-- pre-generate a list of no-ground-nodes for caching
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if( ci==nil or replacements_group.node_is_ground[ minetest.get_content_id('air')]==nil) then
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local no_ground_nodes = {'air','ignore','default:sandstonebrick','default:cactus','default:wood','default:junglewood',
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'default:pine_wood','default:pine_tree','default:acacia_wood','default:acacia_tree', 'default:aspen_wood', 'default:aspen_tree',
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'ethereal:mushroom_pore','ethereal:mushroom_trunk','ethereal:bamboo', 'ethereal:mushroom',
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'ethereal:bush', 'default:grass', 'default:grass_1','default:grass_2','default:grass_3','default:grass_4','default:grass_5',
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'farming_plus:banana_leaves', 'farming_plus:banana',
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'farming_plus:cocoa_sapling', 'farming_plus:cocoa_leaves', 'farming_plus:cocoa',
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'farming_plus:melon', 'farming_plus:corn', 'farming_plus:cornb',
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'farming_plus:lemonb', 'farming_plus:orangeb', 'farming_plus:peachb',
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'farming_plus:lemon', 'farming_plus:orange', 'farming_plus:peach',
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'farming_plus:peach_4b', 'farming_plus:peach_5b', 'farming_plus:walnut',
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'farming:pumpkin', 'farming:pumpkin_face', 'farming:pumpkin_face_light',
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'cavestuff:desert_pebble_2', 'cavestuff:desert_pebble_1',
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'cavestuff:pebble_1', 'cavestuff:pebble_2'};
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-- TODO: add all those other tree and leaf nodes that might be added by mapgen
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for _,name in ipairs( no_ground_nodes ) do
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if( minetest.registered_nodes[ name ]) then
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replacements_group.node_is_ground[ minetest.get_content_id( name )] = false;
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end
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end
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replacements_group.node_is_ground[ minetest.get_content_id( 'air' )] = false;
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local ground_nodes = {'ethereal:dry_dirt', 'default:dirt_with_dry_grass','default:stone','default:sandstone','default:desertstone',
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'ethereal:grey_dirt', 'default:dirt_with_snow', 'default:dirt_with_grass', 'ethereal:grove_dirt', 'ethereal:green_dirt',
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'ethereal:grove_dirt','ethereal:jungle_dirt',
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'default:dirt_with_grass_footsteps',
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'default:dirt_with_rainforest_litter',
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'default:dirt_with_coniferous_litter',
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'default:permafrost',
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'default:permafrost_with_moss',
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'default:permafrost_with_stones'};
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for _,name in ipairs( ground_nodes ) do
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if( minetest.registered_nodes[ name ]) then
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replacements_group.node_is_ground[ minetest.get_content_id( name )] = true;
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end
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end
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end
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if( not( ci )) then
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return false;
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end
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-- information about already analyzed nodes is cached for faster access
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if( replacements_group.node_is_ground[ ci ] ~= nil) then
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return replacements_group.node_is_ground[ ci ];
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end
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@ -188,34 +153,43 @@ mg_villages.check_if_ground = function( ci )
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-- only nodes on which walking is possible may be counted as ground
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local node_name = minetest.get_name_from_content_id( ci );
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local def = minetest.registered_nodes[ node_name ];
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-- store information about this node type for later use
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if( not( def )) then
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replacements_group.node_is_ground[ ci ] = false;
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elseif( not( def.walkable)) then
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replacements_group.node_is_ground[ ci ] = false;
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elseif( def.groups and def.groups.tree ) then
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replacements_group.node_is_ground[ ci ] = false;
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elseif( def.groups and (def.groups.plant or def.groups.growing)) then
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replacements_group.node_is_ground[ ci ] = false;
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elseif( def.drawtype and (def.drawtype=="flowingliquid" or def.drawtype=="torchlike"
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or def.drawtype=="signlike" or def.drawtype=="airlike" or def.drawtype=="liquid"
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or def.drawtype=="plantlike" or def.drawtype=="firelike" or def.drawtype=="fencelike"
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or def.drawtype=="raillike" or def.drawtype=="nodebox" or def.drawtype=="mesh"
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or def.drawtype=="plantlike_rooted")) then
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replacements_group.node_is_ground[ ci ] = false;
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elseif( def.drop and def.drop == 'default:dirt') then
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replacements_group.node_is_ground[ ci ] = true;
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elseif( def.walkable == true and def.is_ground_content == true and not(def.node_box)) then
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replacements_group.node_is_ground[ ci ] = true;
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else
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replacements_group.node_is_ground[ ci ] = false;
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-- if there is not enough information to classify the node, then it
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-- is not suitable as ground
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if( not( def )
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or not( def.walkable)
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or not( def.groups)) then
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replacements_group.node_is_ground[ ci ] = false
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return false
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end
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return replacements_group.node_is_ground[ ci ];
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end
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-- call it once this way so that some grounds and non-grounds get identified
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mg_villages.check_if_ground(nil);
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-- shortcut for quick access to groups
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local g = def.groups
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-- trees and their parts, grass, flowers, liquids etc. are not suitable as ground
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if((g.leaves or g.sapling or g.tree or g.leaves or g.leafdecay
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or g.grass or g.dry_grass or g.flora or g.plant or g.growing
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or g.choppy or g.snappy or g.fleshy
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or g.attached_node or g.rail
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or g.water or g.liquid or g.lava)
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-- the drawtype may sometimes also be helpful
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-- (glasslike or partly transparent nodes won't do as ground)
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or (def.drawtype and def.drawtype ~= "normal")) then
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replacements_group.node_is_ground[ ci ] = false
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return false
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-- stone, sand, dirt and things diggable with a pick or shovel count as ground
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elseif(( g.stone or g.sand or g.soil or g.cracky or g.crumbly or g.spreading_dirt_type )
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-- anything that drops dirt when digged
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or (def.drop and def.drop == 'default:dirt')
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-- cavegen is allowed to eat through these nodes
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or (def.walkable == true and def.is_ground_content == true and not(def.node_box))) then
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replacements_group.node_is_ground[ ci ] = true
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return true
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end
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-- fallback: node is not suitable as ground
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replacements_group.node_is_ground[ ci ] = false
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return false
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end
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-- sets evrything at x,z and above height target_height to air;
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