mtcontrib/mapgen_rivers
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Position should be strictly beyond river threshold to be a river

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Prevents some wrongly placed water pixels.
This commit is contained in:
Gael-de-Sailly 2020-04-14 21:54:05 +02:00
parent 55725ad94b
commit 9700e948b9
1 changed files with 8 additions and 8 deletions
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16
init.lua
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@ -47,20 +47,20 @@ local function generate(minp, maxp, seed)
local is_river = false
local depth_factor = 0
local r_west, r_north, r_east, r_south = unpack(poly.rivers)
if xf >= r_east then
if xf > r_east then
is_river = true
depth_factor = xf-r_east
xf = 1
elseif xf <= r_west then
elseif xf < r_west then
is_river = true
depth_factor = r_west-xf
xf = 0
end
if zf >= r_south then
if zf > r_south then
is_river = true
depth_factor = zf-r_south
zf = 1
elseif zf <= r_north then
elseif zf < r_north then
is_river = true
depth_factor = r_north-zf
zf = 0
@ -68,19 +68,19 @@ local function generate(minp, maxp, seed)
if not is_river then
local c_NW, c_NE, c_SE, c_SW = unpack(poly.river_corners)
if xf+zf <= c_NW then
if xf+zf < c_NW then
is_river = true
depth_factor = c_NW-xf-zf
xf, zf = 0, 0
elseif 1-xf+zf <= c_NE then
elseif 1-xf+zf < c_NE then
is_river = true
depth_factor = c_NE-1+xf-zf
xf, zf = 1, 0
elseif 2-xf-zf <= c_SE then
elseif 2-xf-zf < c_SE then
is_river = true
depth_factor = c_SE-2+xf+zf
xf, zf = 1, 1
elseif xf+1-zf <= c_SW then
elseif xf+1-zf < c_SW then
is_river = true
depth_factor = c_SW-xf-1+zf
xf, zf = 0, 1