aboutsummaryrefslogtreecommitdiff
path: root/util/old/genmap.py
diff options
context:
space:
mode:
Diffstat (limited to 'util/old/genmap.py')
-rwxr-xr-xutil/old/genmap.py271
1 files changed, 0 insertions, 271 deletions
diff --git a/util/old/genmap.py b/util/old/genmap.py
deleted file mode 100755
index 6b36269d5..000000000
--- a/util/old/genmap.py
+++ /dev/null
@@ -1,271 +0,0 @@
-#!/usr/bin/python2
-
-# This is an example script that generates some valid map data.
-
-import struct
-import random
-import os
-import sys
-import zlib
-import array
-from pnoise import pnoise
-
-# Old directory format:
-# world/sectors/XXXXZZZZ/YYYY
-# XXXX,YYYY,ZZZZ = coordinates in hexadecimal
-# fffe = -2
-# ffff = -1
-# 0000 = 0
-# 0001 = 1
-#
-# New directory format:
-# world/sectors2/XXX/ZZZ/YYYY
-# XXX,YYYY,ZZZ = coordinates in hexadecimal
-# fffe = -2
-# ffff = -1
-# 0000 = 0
-# 0001 = 1
-# ffe = -2
-# fff = -1
-# 000 = 0
-# 001 = 1
-#
-# For more proper file format documentation, refer to mapformat.txt
-# For node type documentation, refer to mapnode.h
-# NodeMetadata documentation is not complete, refer to nodemeta.cpp
-#
-
-# Seed for generating terrain
-SEED = 0
-
-# 0=old, 1=new
-SECTOR_DIR_FORMAT = 1
-
-mapdir = "../world"
-
-def to4h(i):
- s = "";
- s += '{0:1x}'.format((i>>12) & 0x000f)
- s += '{0:1x}'.format((i>>8) & 0x000f)
- s += '{0:1x}'.format((i>>4) & 0x000f)
- s += '{0:1x}'.format((i>>0) & 0x000f)
- return s
-
-def to3h(i):
- s = "";
- s += '{0:1x}'.format((i>>8) & 0x000f)
- s += '{0:1x}'.format((i>>4) & 0x000f)
- s += '{0:1x}'.format((i>>0) & 0x000f)
- return s
-
-def get_sector_dir(px, pz):
- global SECTOR_DIR_FORMAT
- if SECTOR_DIR_FORMAT == 0:
- return "/sectors/"+to4h(px)+to4h(pz)
- elif SECTOR_DIR_FORMAT == 1:
- return "/sectors2/"+to3h(px)+"/"+to3h(pz)
- else:
- assert(0)
-
-def getrand_air_stone():
- i = random.randrange(0,2)
- if i==0:
- return 0
- return 254
-
-# 3-dimensional vector (position)
-class v3:
- def __init__(self, x=0, y=0, z=0):
- self.X = x
- self.Y = y
- self.Z = z
-
-class NodeMeta:
- def __init__(self, type_id, data):
- self.type_id = type_id
- self.data = data
-
-class StaticObject:
- def __init__(self):
- self.type_id = 0
- self.data = ""
-
-def ser_u16(i):
- return chr((i>>8)&0xff) + chr((i>>0)&0xff)
-def ser_u32(i):
- return (chr((i>>24)&0xff) + chr((i>>16)&0xff)
- + chr((i>>8)&0xff) + chr((i>>0)&0xff))
-
-# A 16x16x16 chunk of map
-class MapBlock:
- def __init__(self):
- self.content = array.array('B')
- self.param1 = array.array('B')
- self.param2 = array.array('B')
- for i in range(16*16*16):
- # Initialize to air
- self.content.append(254)
- # Full light on sunlight, none when no sunlight
- self.param1.append(15)
- # No additional parameters
- self.param2.append(0)
-
- # key = v3 pos
- # value = NodeMeta
- self.nodemeta = {}
-
- # key = v3 pos
- # value = StaticObject
- self.static_objects = {}
-
- def set_content(self, v3, b):
- self.content[v3.Z*16*16+v3.Y*16+v3.X] = b
- def set_param1(self, v3, b):
- self.param1[v3.Z*16*16+v3.Y*16+v3.X] = b
- def set_param2(self, v3, b):
- self.param2[v3.Z*16*16+v3.Y*16+v3.X] = b
-
- # Get data for serialization. Returns a string.
- def serialize_data(self):
- s = ""
- for i in range(16*16*16):
- s += chr(self.content[i])
- for i in range(16*16*16):
- s += chr(self.param1[i])
- for i in range(16*16*16):
- s += chr(self.param2[i])
- return s
-
- def serialize_nodemeta(self):
- s = ""
- s += ser_u16(1)
- s += ser_u16(len(self.nodemeta))
- for pos, meta in self.nodemeta.items():
- pos_i = pos.Z*16*16 + pos.Y*16 + pos.X
- s += ser_u16(pos_i)
- s += ser_u16(meta.type_id)
- s += ser_u16(len(meta.data))
- s += meta.data
- return s
-
- def serialize_staticobj(self):
- s = ""
- s += chr(0)
- s += ser_u16(len(self.static_objects))
- for pos, obj in self.static_objects.items():
- pos_i = pos.Z*16*16 + pos.Y*16 + pos.X
- s += ser_s32(pos.X*1000)
- s += ser_s32(pos.Y*1000)
- s += ser_s32(pos.Z*1000)
- s += ser_u16(obj.type_id)
- s += ser_u16(len(obj.data))
- s += obj.data
- return s
-
-def writeblock(mapdir, px,py,pz, block):
-
- sectordir = mapdir + get_sector_dir(px, pz);
-
- try:
- os.makedirs(sectordir)
- except OSError:
- pass
-
- path = sectordir+"/"+to4h(py)
-
- print("writing block file "+path)
-
- f = open(sectordir+"/"+to4h(py), "wb")
-
- if f == None:
- return
-
- # version
- version = 17
- f.write(struct.pack('B', version))
-
- # flags
- # 0x01=is_undg, 0x02=dn_diff, 0x04=lighting_expired
- flags = 0 + 0x02 + 0x04
- f.write(struct.pack('B', flags))
-
- # data
- c_obj = zlib.compressobj()
- c_obj.compress(block.serialize_data())
- f.write(struct.pack('BB', 0x78, 0x9c)) # zlib magic number
- f.write(c_obj.flush())
-
- # node metadata
- c_obj = zlib.compressobj()
- c_obj.compress(block.serialize_nodemeta())
- f.write(struct.pack('BB', 0x78, 0x9c)) # zlib magic number
- f.write(c_obj.flush())
-
- # mapblockobject count
- f.write(ser_u16(0))
-
- # static objects
- f.write(block.serialize_staticobj())
-
- # timestamp
- f.write(ser_u32(0xffffffff))
-
- f.close()
-
-for z0 in range(-1,3):
- for x0 in range(-1,3):
- for y0 in range(-1,3):
- print("generating block "+str(x0)+","+str(y0)+","+str(z0))
- #v3 blockp = v3(x0,y0,z0)
-
- # Create a MapBlock
- block = MapBlock()
-
- # Generate stuff in it
- for z in range(0,16):
- for x in range(0,16):
- h = 20.0*pnoise((x0*16+x)/100.,(z0*16+z)/100.,SEED+0)
- h += 5.0*pnoise((x0*16+x)/25.,(z0*16+z)/25.,SEED+0)
- if pnoise((x0*16+x)/25.,(z0*16+z)/25.,SEED+92412) > 0.05:
- h += 10
- #print("r="+str(r))
- # This enables comparison by ==
- h = int(h)
- for y in range(0,16):
- p = v3(x,y,z)
- b = 254
- y1 = y0*16+y
- if y1 <= h-3:
- b = 0 #stone
- elif y1 <= h and y1 <= 0:
- b = 8 #mud
- elif y1 == h:
- b = 1 #grass
- elif y1 < h:
- b = 8 #mud
- elif y1 <= 1:
- b = 9 #water
-
- # Material content
- block.set_content(p, b)
-
- # Place a sign at the center at surface level.
- # Placing a sign means placing the sign node and
- # adding node metadata to the mapblock.
- if x == 8 and z == 8 and y0*16 <= h-1 and (y0+1)*16-1 > h:
- p = v3(8,h+1-y0*16,8)
- # 14 = Sign
- content_type = 14
- block.set_content(p, content_type)
- # This places the sign to the bottom of the cube.
- # Working values: 0x01, 0x02, 0x04, 0x08, 0x10, 0x20
- block.set_param2(p, 0x08)
- # Then add metadata to hold the text of the sign
- s = "Hello at sector ("+str(x0)+","+str(z0)+")"
- meta = NodeMeta(content_type, ser_u16(len(s))+s)
- block.nodemeta[p] = meta
-
- # Write it on disk
- writeblock(mapdir, x0,y0,z0, block)
-
-#END
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 12:03:17 +0000