From edd6f8c7e9bdd152a4a116874d3060cce60f3a37 Mon Sep 17 00:00:00 2001
From: RealBadAngel <mk@realbadangel.pl>
Date: Thu, 28 Mar 2013 15:50:34 +0100
Subject: [PATCH] New ores code

---
 technic/ores.lua | 115 ++++++++++++++++++++++++++---------------------
 1 file changed, 64 insertions(+), 51 deletions(-)

diff --git a/technic/ores.lua b/technic/ores.lua
index 9baac9e..cfd5d2a 100644
--- a/technic/ores.lua
+++ b/technic/ores.lua
@@ -248,54 +248,67 @@ minetest.register_craft({
 				recipe = "technic:zinc_lump"
 			})
 
-
-local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, ore_per_chunk, height_min, height_max)
-	if maxp.y < height_min or minp.y > height_max then
-		return
-	end
-	local y_min = math.max(minp.y, height_min)
-	local y_max = math.min(maxp.y, height_max)
-	local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
-	local pr = PseudoRandom(seed)
-	local num_chunks = math.floor(chunks_per_volume * volume)
-	local chunk_size = 3
-	if ore_per_chunk <= 4 then
-		chunk_size = 2
-	end
-	local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
-	--print("generate_ore num_chunks: "..dump(num_chunks))
-	for i=1,num_chunks do
-	if (y_max-chunk_size+1 <= y_min) then return end
-		local y0 = pr:next(y_min, y_max-chunk_size+1)
-		if y0 >= height_min and y0 <= height_max then
-			local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
-			local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
-			local p0 = {x=x0, y=y0, z=z0}
-			for x1=0,chunk_size-1 do
-			for y1=0,chunk_size-1 do
-			for z1=0,chunk_size-1 do
-				if pr:next(1,inverse_chance) == 1 then
-					local x2 = x0+x1
-					local y2 = y0+y1
-					local z2 = z0+z1
-					local p2 = {x=x2, y=y2, z=z2}
-					if minetest.env:get_node(p2).name == wherein then
-						minetest.env:set_node(p2, {name=name})
-					end
-				end
-			end
-			end
-			end
-		end
-	end
-	--print("generate_ore done")
-end
-
-minetest.register_on_generated(function(minp, maxp, seed)
-generate_ore("technic:mineral_diamond",		"default:stone", minp, maxp, seed+21, 1/11/11/11,	4,  -31000, -450)
-generate_ore("technic:mineral_uranium",		"default:stone", minp, maxp, seed+22, 1/10/10/10,	3,  -300,   -80)
-generate_ore("technic:mineral_chromium",	"default:stone", minp, maxp, seed+23, 1/10/10/10,	2,  -31000, -100)
-generate_ore("technic:mineral_zinc",		"default:stone", minp, maxp, seed+24, 1/9/9/9,		4,  -31000,  2)
-generate_ore("technic:marble",				"default:stone", minp, maxp, seed+25, 1/128,		20, -100,   -32)
-generate_ore("technic:granite",				"default:stone", minp, maxp, seed+25, 1/128,		15, -190,   -90)
-end)
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "technic:mineral_diamond",
+	wherein        = "default:stone",
+	clust_scarcity = 11*11*11,
+	clust_num_ores = 4,
+	clust_size     = 3,
+	height_min     = -31000,
+	height_max     = -450,
+})
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "technic:mineral_uranium",
+	wherein        = "default:stone",
+	clust_scarcity = 10*10*10,
+	clust_num_ores = 4,
+	clust_size     = 3,
+	height_min     = -300,
+	height_max     = -80,
+})
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "technic:mineral_chromium",
+	wherein        = "default:stone",
+	clust_scarcity = 10*10*10,
+	clust_num_ores = 2,
+	clust_size     = 3,
+	height_min     = -31000,
+	height_max     = -100,
+})
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "technic:mineral_zinc",
+	wherein        = "default:stone",
+	clust_scarcity = 9*9*9,
+	clust_num_ores = 4,
+	clust_size     = 3,
+	height_min     = -31000,
+	height_max     = 2,
+})
+minetest.register_ore({
+	ore_type       = "sheet",
+	ore            = "technic:marble",
+	wherein        = "default:stone",
+	clust_scarcity = 1,
+	clust_num_ores = 1,
+	clust_size     = 3,
+	height_min     = -150,
+	height_max     = -50,
+	noise_threshhold = 0.5,
+	noise_params = {offset=0, scale=15, spread={x=150, y=150, z=150}, seed=23, octaves=3, persist=0.70}
+})
+minetest.register_ore({
+	ore_type       = "sheet",
+	ore            = "technic:granite",
+	wherein        = "default:stone",
+	clust_scarcity = 1,
+	clust_num_ores = 1,
+	clust_size     = 4,
+	height_min     = -100,
+	height_max     = -250,
+	noise_threshhold = 0.5,
+	noise_params = {offset=0, scale=15, spread={x=130, y=130, z=130}, seed=24, octaves=3, persist=0.70}
+})
-- 
2.30.2