From 167434085cf62f133aaeaeadd7f9eb80d946189f Mon Sep 17 00:00:00 2001
From: Maciej Kasatkin <mk@realbadangel.pl>
Date: Tue, 21 Aug 2012 07:18:33 +0200
Subject: upload

---
 ores.lua | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 ores.lua

(limited to 'ores.lua')

diff --git a/ores.lua b/ores.lua
new file mode 100644
index 0000000..f1304b2
--- /dev/null
+++ b/ores.lua
@@ -0,0 +1,60 @@
+minetest.register_node( "technic:mineral_diamond", {
+	description = "Diamond Ore",
+	tile_images = { "default_stone.png^technic_mineral_diamond.png" },
+	is_ground_content = true,
+	groups = {cracky=3},
+	sounds = default.node_sound_stone_defaults(),
+	drop = 'craft "technic:diamond" 1',
+}) 
+
+minetest.register_craftitem( "technic:diamond", {
+	description = "Diamond",
+	inventory_image = "technic_diamond.png",
+	on_place_on_ground = minetest.craftitem_place_item,
+})
+
+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+20,   1/11/11/11,    1, -31000,  -450)
+end)
\ No newline at end of file
-- 
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