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@ -25,23 +25,21 @@ local solid_drawtypes = { |
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glasslike_framed = true, |
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} |
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local S = ("S"):byte(1) |
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local W = ("W"):byte(1) |
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local E = ("E"):byte(1) |
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local C = ("C"):byte(1) |
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--[[ |
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E: air |
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E_: other empty |
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Etype: territory marker of some type |
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E: empty |
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Stype: a go stone of some type |
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W: full block wall |
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WE0-WE3: edge concrete |
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WC0-WC3: corner concrete |
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WB: other goban concrete |
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--]] |
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local function _check_position_uncached(pos) |
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local node = minetest.get_node(pos) |
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if node.name == "air" then |
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return "E" |
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end |
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local reg_item = minetest.registered_items[node.name] |
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if not reg_item then |
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@ -52,26 +50,18 @@ local function _check_position_uncached(pos) |
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return "S" .. reg_item.go_team |
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end |
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if reg_item.groups and reg_item.groups.go_territory_marker then |
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return "E" .. reg_item.go_team |
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end |
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if reg_item.pattern_def then |
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if reg_item.pattern_def.name == "edgy" then |
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return "WE" .. node.param2 |
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elseif reg_item.pattern_def.name == "corny" then |
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return "WC" .. node.param2 |
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elseif reg_item.pattern_def.name == "crossy" then |
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return "WB" |
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elseif reg_item.pattern_def.name == "starcrossy" then |
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return "WB" |
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end |
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end |
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if solid_drawtypes[reg_item.drawtype] and not reg_item.groups.falling_node then |
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return "W" |
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else |
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return "E_" |
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return "E" |
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end |
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end |
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@ -90,8 +80,8 @@ end |
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local function edge_check(pos, dir, terminate) |
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local under = check_position(pos + down) |
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if under:sub(1, 1) == "W" and under:len() == 3 then |
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local corner = (under:sub(2, 2) == "C") |
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if under:byte(1) == W and under:len() == 3 then |
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local corner = (under:byte(2) == C) |
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local edge_dir = tonumber(under:sub(3, 3)) |
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if (dir == edge_dir) or (corner and (dir == (edge_dir+1)%4)) then |
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@ -116,7 +106,7 @@ local function neighbor_dirs(pos) |
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local neighbors = {} |
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for i,v in pairs(directions) do |
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if not edge_check(pos, i) then |
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if check_position(pos + directions[i]):sub(1, 1) ~= "W" then |
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if not (check_position(pos + directions[i]):byte(1) == W) then |
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neighbors[#neighbors+1] = i |
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end |
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end |
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@ -125,11 +115,16 @@ local function neighbor_dirs(pos) |
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return neighbors |
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end |
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local function connected_search(pos, final_result, early_termination_filter) |
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--[[ |
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Scans for a connected group, until enumerating the whole group, or |
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finding a liberty. Returns list of captured nodes, or empty list if |
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no captures. |
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--]] |
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local function check_captures(pos) |
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local group = {pos} |
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local stones = {[minetest.hash_node_position(pos)] = pos} |
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local checked = {} |
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local piece = check_position(pos) |
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local team = check_position(pos):sub(2,-1) |
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local probe = 0 |
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while probe < #group do |
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@ -143,14 +138,10 @@ local function connected_search(pos, final_result, early_termination_filter) |
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if (not stones[newhash]) and (not checked[newhash]) then |
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local newnode = check_position(newpos) |
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local filter_result |
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if early_termination_filter then |
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filter_result = early_termination_filter(newnode) |
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end |
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if filter_result then |
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filter_result.stones = stones |
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return filter_result |
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elseif newnode == piece then |
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if newnode:byte(1) == E then |
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return {capture = false, stones = stones} |
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elseif newnode:byte(1) == S and |
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newnode:sub(2, -1) == team then |
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stones[newhash] = newpos |
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group[#group+1] = newpos |
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else |
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@ -160,70 +151,16 @@ local function connected_search(pos, final_result, early_termination_filter) |
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end |
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end |
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final_result = final_result() |
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final_result.stones = stones |
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return final_result |
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end |
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local function _check_captures_filter(node) |
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if node:sub(1, 1) == "E" then |
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return {capture = false} |
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end |
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end |
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local function _check_captures_final() |
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return {capture = true} |
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end |
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local function check_captures(pos) |
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return connected_search(pos, _check_captures_final, _check_captures_filter) |
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end |
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local function _connected_group_final() |
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return {} |
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end |
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local function connected_group(pos) |
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return connected_search(pos, _connected_group_final) |
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end |
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local function territory_search(pos, max) |
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if check_position(pos) ~= "E" then |
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return {} |
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end |
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local team |
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return connected_search(pos, |
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function() |
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return {team = team} |
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end, |
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function(node) |
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if node == "E" then |
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max = max - 1 |
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if max <= 0 then |
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return {} |
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end |
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elseif node ~= "E_" and ((node:sub(1, 1) == "E") or (node:sub(1, 1) == "S")) and node:len() > 1 then |
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node = node:sub(2, -1) |
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if team then |
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if team ~= node then |
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return {} |
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end |
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else |
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team = node |
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end |
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end |
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end |
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) |
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return {capture = true, stones = stones} |
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end |
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function lc_liberties.handle_placement(pos) |
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cache = {} |
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--minetest.chat_send_all(tostring(pos)) |
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minetest.chat_send_all(tostring(pos)) |
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--nodecore.node_sound(pos, "dug") |
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local our_stone = check_position(pos) |
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if our_stone:sub(1, 1) ~= "S" then |
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if not (our_stone:byte(1) == S) then |
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return |
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end |
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our_stone = our_stone:sub(2, -1) |
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@ -244,7 +181,7 @@ function lc_liberties.handle_placement(pos) |
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if not checked then |
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local node = check_position(new_pos) |
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if (node:sub(1, 1) == "S") and (node:sub(2, -1) ~= our_stone) then |
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if (node:byte(1) == S) and (not (node:sub(2, -1) == our_stone)) then |
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local captures = check_captures(new_pos) |
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captured = captured or captures.capture |
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captureses[#captureses+1] = captures |
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@ -255,78 +192,22 @@ function lc_liberties.handle_placement(pos) |
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if captured then |
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for i,v in pairs(captureses) do |
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if v.capture then |
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local stone = minetest.get_node(v.stones[next(v.stones)]).name |
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local count = 0 |
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local proximal |
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local proximal_c = 0 |
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local proximal = {} |
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for i2, v2 in pairs(v.stones) do |
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local under = check_position(v2 + down) |
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if (under:sub(1, 1) == "W") and (under:len() > 1) then |
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nodecore.set_loud(v2, {name = "nc_fire:fire"}) |
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else |
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nodecore.set_loud(v2, {name = "air"}) |
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end |
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count = count + 1 |
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if (v2:distance(pos) < 2.3) then |
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proximal_c = proximal_c + 1 |
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if math.random(1, proximal_c) == 1 then |
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proximal = v2 |
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end |
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end |
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nodecore.set_loud(v2, {name = "nc_fire:fire"}) |
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end |
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local stack_max = minetest.registered_items[stone].stack_max |
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while count > 0 do |
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nodecore.item_eject(proximal, stone .. " " .. math.min(count, stack_max), 3) |
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count = count - stack_max |
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end |
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-- todo: spawn itemstack of captured stones somehow |
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end |
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end |
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else |
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local captures = check_captures(pos) |
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if captures.capture then |
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local stone = minetest.get_node(pos).name |
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nodecore.set_loud(pos, {name = "air"}) |
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nodecore.item_eject(pos, stone, 5) |
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end |
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end |
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end |
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function lc_liberties.handle_territory_fill(itemstack, placer, pointed_thing) |
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cache = {} |
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if placer.get_player_control and placer:get_player_control().aux1 then |
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return minetest.item_place(itemstack, placer, pointed_thing) |
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end |
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if pointed_thing and pointed_thing.above then |
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local territories = territory_search(pointed_thing.above, itemstack:get_count()) |
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if territories.team then |
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local piece = modname .. ":territory_" .. territories.team |
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local count = 0 |
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for i, v in pairs(territories.stones) do |
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nodecore.set_loud(v, {name = piece}) |
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count = count + 1 |
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end |
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itemstack:set_count(itemstack:get_count() - count) |
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minetest.chat_send_all("You gotcher self a suicide move right there! size: "..#(captures.stones)) |
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-- todo: replace with itemstack of one stone |
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end |
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end |
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return itemstack |
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end |
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function lc_liberties.handle_dig(pos, node, digger) |
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cache = {} |
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if digger.get_player_control and digger:get_player_control().aux1 then |
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for i, v in pairs(connected_group(pos).stones) do |
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minetest.node_dig(v, node, digger) |
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end |
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return true |
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else |
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return minetest.node_dig(pos, node, digger) |
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end |
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end |
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