diff options
Diffstat (limited to 'builtin/game/misc.lua')
| -rw-r--r-- | builtin/game/misc.lua | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/builtin/game/misc.lua b/builtin/game/misc.lua index 6e54dad5e..2e05cdc41 100644 --- a/builtin/game/misc.lua +++ b/builtin/game/misc.lua @@ -175,7 +175,7 @@ end -- Checks if specified volume intersects a protected volume -function core.intersects_protection(minp, maxp, player_name, interval) +function core.is_area_protected(minp, maxp, player_name, interval) -- 'interval' is the largest allowed interval for the 3D lattice of checks. -- Compute the optimal float step 'd' for each axis so that all corners and @@ -188,14 +188,18 @@ function core.intersects_protection(minp, maxp, player_name, interval) local d = {} for _, c in pairs({"x", "y", "z"}) do + if minp[c] > maxp[c] then + -- Repair positions: 'minp' > 'maxp' + local tmp = maxp[c] + maxp[c] = minp[c] + minp[c] = tmp + end + if maxp[c] > minp[c] then d[c] = (maxp[c] - minp[c]) / math.ceil((maxp[c] - minp[c]) / interval) - 1e-4 - elseif maxp[c] == minp[c] then + else d[c] = 1 -- Any value larger than 0 to avoid division by zero - else -- maxp[c] < minp[c], print error and treat as protection intersected - minetest.log("error", "maxp < minp in 'minetest.intersects_protection()'") - return true end end @@ -205,13 +209,13 @@ function core.intersects_protection(minp, maxp, player_name, interval) local y = math.floor(yf + 0.5) for xf = minp.x, maxp.x, d.x do local x = math.floor(xf + 0.5) - if core.is_protected({x = x, y = y, z = z}, player_name) then - return true + local pos = {x = x, y = y, z = z} + if core.is_protected(pos, player_name) then + return pos end end end end - return false end |