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require "json"
MetalSpotHandler = class(Module)
function MetalSpotHandler:Name()
return "MetalSpotHandler"
end
function MetalSpotHandler:internalName()
return "metalspothandler"
end
function MetalSpotHandler:Init()
self.spots = game.map:GetMetalSpots()
for i,v in ipairs(self.spots) do
v.x = v.x+64;
v.z = v.z+64;
end
end
function distance(pos1,pos2)
local xd = pos1.x-pos2.x
local yd = pos1.z-pos2.z
dist = math.sqrt(xd*xd + yd*yd)
return dist
end
function MetalSpotHandler:GameMessage(message)
local headerLength = string.len("METAL_SPOTS:");
if (string.sub(message, 1, headerLength) == "METAL_SPOTS:") then
local content = string.sub(message,headerLength+1);
local spots = decode(content);
self.spots={}
for i,v in pairs(spots) do
local newpos = api.Position();
newpos.x = tonumber(v.x);
newpos.y = tonumber(v.y);
newpos.z = tonumber(v.z);
self.spots[i] = newpos;
end
end
end
function MetalSpotHandler:ClosestFreeSpot(unittype,position)
local pos = nil
local bestDistance = 10000
spotCount = game.map:SpotCount()
for i,v in ipairs(self.spots) do
local p = v
local dist = distance(position,p)
if dist < bestDistance then
if game.map:CanBuildHere(unittype,p) then
bestDistance = dist
pos = p
end
end
end
return pos
end
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