Luanti/fun_caves
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Add heightmap checks.

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This commit is contained in:
Duane Robertson 2016-04-24 18:48:20 -05:00
parent 77b6f66e9e
commit 59af974044
1 changed files with 17 additions and 7 deletions
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24
mapgen.lua
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@ -290,9 +290,8 @@ local function makeTunnel(this, dirswitch)
local p1 = vector.add(orpi, veci, this.of, this.rs / 2)
if (p1.z >= minp.z and p1.z <= maxp.z and
p1.x >= minp.x and p1.x <= maxp.x) then
local index1 = (p1.z - minp.z) * a.ystride + (p1.x - minp.x)
--h1 = mg.heightmap[index1]
h1 = this.water_level
local index1 = math.floor(p1.z - minp.z + 0.5) * csize.x + math.floor(p1.x - minp.x + 0.5) + 1
h1 = heightmap[index1]
else
h1 = this.water_level -- If not in heightmap
end
@ -300,9 +299,8 @@ local function makeTunnel(this, dirswitch)
local p2 = vector.add(orpi, this.of, this.rs / 2)
if (p2.z >= minp.z and p2.z <= maxp.z and
p2.x >= minp.x and p2.x <= maxp.x) then
local index2 = (p2.z - minp.z) * a.ystride + (p2.x - minp.x)
--h2 = mg.heightmap[index2]
h2 = this.water_level
local index2 = math.floor(p2.z - minp.z + 0.5) * csize.x + math.floor(p2.x - minp.x + 0.5) + 1
h2 = heightmap[index2]
else
h2 = this.water_level
end
@ -470,6 +468,18 @@ function fun_caves.generate(p_minp, p_maxp, seed)
--p2data = vm:get_param2_data()
a = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
csize = vector.add(vector.subtract(maxp, minp), 1)
heightmap = minetest.get_mapgen_object("heightmap")
local max_stone_height = -40000
local index = 0
for z = minp.z, maxp.z do
for x = minp.x, maxp.x do
index = index + 1
if max_stone_height < heightmap[index] then
max_stone_height = heightmap[index]
end
end
end
-- Deal with memory issues. This, of course, is supposed to be automatic.
local mem = math.floor(collectgarbage("count")/1024)
@ -485,7 +495,7 @@ function fun_caves.generate(p_minp, p_maxp, seed)
local px = math.floor((minp.x + 32) / csize.x)
local pz = math.floor((minp.z + 32) / csize.z)
generateCaves(1)
generateCaves(max_stone_height)
--local index = 0
--local index3d = 0