implementation of adamant and tunnels

src/res/eressea/items.xml

@@ -173,6 +173,19 @@
     </resourcelimit>
   </resource>
 
+  <resource name="diamondaxe">
+    <item weight="100" score="500">
+      <construction skill="weaponsmithing" minskill="8" reqsize="1">
+        <requirement type="diamond" quantity="1"/>
+        <requirement type="log" quantity="1"/>
+      </construction>
+      <weapon cut="true" skill="melee" offmod="2" defmod="-2" magres="0.30">
+        <damage type="rider" value="3d4+15"/>
+        <damage type="footman" value="3d4+15"/>
+      </weapon>
+    </item>
+  </resource>
+
   <resource name="diamondplate">
     <item weight="100" score="2000">
       <construction skill="armorer" minskill="10" reqsize="1">

src/scripts/adamant.lua

@@ -0,0 +1,68 @@
+-- adamant gifts and setup for tunnels
+
+-- use only once to hand out some items to existing factions
+function adamant_gifts()
+  for f in factions() do
+    local i = math.mod(test.rng_int(), 2)
+    if i==0 then
+      f:add_item("diamond", 1)
+      f:add_item("diamondplate", 1)
+    else
+      f:add_item("diamond", 3)
+      f:add_item("diamondaxe", 1)
+    end
+  end
+end
+
+-- create a fixed path to a specific region
+local function create_path(from, to)
+  local param = tostring(to.uid)
+  local b = add_building(from, "portal")
+  b.name = "Weltentor"
+  b.size = 1
+  b:add_action("tunnel_action", param)
+end
+
+-- create a wonky tunnel wth more than one exit
+local function create_tunnel(from, param)
+  local b = add_building(from, "portal")
+  b.name = "Weltentor"
+  b.size = 1
+  b:add_action("tunnel_action", param)
+end
+
+-- make a tunnel from the cursor to the first selected region
+function mktunnel()
+  local from = gmtool.cursor()
+  local to = gmtool.selection()()
+  if to~=nil then
+    terraform(from.x, from.y, "glacier")
+    create_tunnel(from, to)
+    gmtool.select(to, 0)
+    gmtool.highlight(to, 1)
+  end
+end
+
+-- turn all selected regions into targets for a wonky tunnel ("tnnL")
+function mkanchors()
+  for r in gmtool.selection() do
+    if not r:get_key("tnnL") then
+      r:set_key("tnnL", true)
+      if r:get_flag(0) then
+        -- RF_CHAOTIC
+        r:set_flag(0, true)
+      end
+      r:set_resource("peasant", r:get_resource("peasant") + 1)
+    end
+  end
+end
+
+-- terraform and prepare all hell-regions to become wonky gates
+function mkgates()
+  for r in regions() do
+    if r.plane_id==0 and r.terrain=="hell" then
+      create_tunnel(r, "tnnL")
+      terraform(r.x, r.y, "glacier")
+    end
+  end
+end

src/scripts/eressea.lua

@@ -40,6 +40,7 @@ function load_scripts()
     "eressea/xmas2005.lua",
     "eressea/xmas2006.lua",
     "eressea/embassy.lua",
+    "eressea/tunnels.lua",
     "eressea/ents.lua"
   }
   for index, value in pairs(scripts) do

src/scripts/eressea/tunnels.lua

@@ -0,0 +1,46 @@
+local function tunnel_travellers(b)
+  local units = {}
+  for u in b.units do
+    units[u] = u
+  end
+  return units
+end
+
+targets = nil
+ntargets = 0
+
+local function get_target(param)
+  if targets == nil then
+    targets = {}
+    local r
+    for r in regions() do
+      if r:get_key(param) then
+        targets[ntargets] = r
+        ntargets = ntargets + 1
+      end
+    end
+  end
+  if ntargets==0 then
+    return nil
+  end
+  local rn = math.mod(test.rng_int(), ntargets)
+  return targets[rn]
+end
+
+-- export, will be called from lc_age()
+function tunnel_action(b, param)
+  local r = nil
+  if tonumber(param)~=nil then
+    r = get_region_by_id(tonumber(param))
+  end
+  if r~=nil then
+    local units = tunnel_travelers(b)
+    for key, u in pairs(units) do
+      if r==nil then
+        u.region = get_target(param)
+      else
+        u.region = r
+      end
+    end
+  end
+end