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-- Vet LOS for symmetry.
local FAILMAP = 'losfail.map'
local checks = 0
local function test_cellseecell_symmetry()
-- Send the player to a random spot on the level.
you.random_teleport()
crawl.redraw_view()
checks = checks + 1
local you_x, you_y = you.pos()
for y = -9, 9 do
for x = -9, 9 do
local px, py = x + you_x, y + you_y
if (x ~= 0 or y ~= 0) and dgn.in_bounds(px, py) then
local forward = los.cell_see_cell(you_x, you_y, px, py)
local backward = los.cell_see_cell(px, py, you_x, you_y)
this_p = dgn.point(you_x, you_y)
other_p = dgn.point(px, py)
if not forward then
you.moveto(px, py)
local temp = this_p
this_p = other_p
other_p = temp
end
if (forward and not backward) or (not forward and backward) then
dgn.fprop_changed(other_p.x, other_p.y, "highlight")
debug.dump_map(FAILMAP)
assert(false,
"cell_see_cell asymmetry detected (iter #" .. checks .. "): "
.. this_p .. " sees " .. other_p .. ", but not vice versa."
.. " Map saved to " .. FAILMAP)
end
end
end
end
end
local function run_los_tests(depth, nlevels, tests_per_level)
local place = "D:" .. depth
crawl.message("Running LOS tests on " .. place)
debug.goto_place(place)
for lev_i = 1, nlevels do
debug.flush_map_memory()
debug.generate_level()
for t_i = 1, tests_per_level do
test_cellseecell_symmetry()
end
end
end
for depth = 1, 16 do
run_los_tests(depth, 1, 1)
end
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