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---------------------------------------------------------------------------
-- autofight.lua:
-- One-key fighting.
--
-- To use this, add this line to your init.txt:
-- lua_file = lua/autofight.lua
-- Then macro any key to "===hit_closest".
--
-- This uses the very incomplete client monster and view bindings, and
-- is currently very primitive. Improvements welcome!
---------------------------------------------------------------------------
local function delta_to_vi(dx, dy)
local d2v = {
[-1] = { [-1] = 'y', [0] = 'h', [1] = 'b'},
[0] = { [-1] = 'k', [1] = 'j'},
[1] = { [-1] = 'u', [0] = 'l', [1] = 'n'},
}
return d2v[dx][dy]
end
local function sign(a)
return a > 0 and 1 or a < 0 and -1 or 0
end
local function abs(a)
return a * sign(a)
end
local function try_move(dx, dy)
if view.feature_at(dx, dy) == "floor" then
return delta_to_vi(dx, dy)
else
return ""
end
end
local function move_towards(dx, dy)
local move = ""
if abs(dx) > abs(dy) then
move = try_move(sign(dx), 0)
if move == "" then move = try_move(sign(dx), sign(dy)) end
if move == "" then move = try_move(0, sign(dy)) end
elseif abs(dx) == abs(dy) then
move = try_move(sign(dx), sign(dy))
if move == "" then move = try_move(sign(dx), 0) end
if move == "" then move = try_move(0, sign(dy)) end
else
move = try_move(0, sign(dy))
if move == "" then move = try_move(sign(dx), sign(dy)) end
if move == "" then move = try_move(sign(dx), 0) end
end
if move == "" then
crawl.mpr("failed to move towards target")
else
crawl.process_keys(move)
end
end
local function find_next_monster()
local r, x, y
for r = 1,8 do
for x = -r,r do
for y = -r,r do
if monster.get_monster_at(x, y) then
return x, y
end
end
end
end
return 0, 0
end
function hit_closest()
local x, y = find_next_monster()
if x == 0 and y == 0 then
crawl.mpr("couldn't find monster")
else
move_towards(x, y)
end
end
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