#include "utility.h"
#include "gettime.h"
+#include "sha1.h"
+#include "base64.h"
+#include "log.h"
+#include <iomanip>
TimeTaker::TimeTaker(const char *name, u32 *result)
{
else
{
if(quiet == false)
- std::cout<<m_name<<" took "<<dtime<<"ms"<<std::endl;
+ infostream<<m_name<<" took "<<dtime<<"ms"<<std::endl;
}
m_running = false;
return dtime;
next = seed;
}
+int myrand_range(int min, int max)
+{
+ if(max-min > MYRAND_MAX)
+ {
+ errorstream<<"WARNING: myrand_range: max-min > MYRAND_MAX"<<std::endl;
+ assert(0);
+ }
+ if(min > max)
+ {
+ assert(0);
+ return max;
+ }
+ return (myrand()%(max-min+1))+min;
+}
+
/*
blockpos: position of block in block coordinates
camera_pos: position of camera in nodes
camera_dir: an unit vector pointing to camera direction
range: viewing range
*/
-bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir, f32 range,
- f32 *distance_ptr)
+bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
+ f32 camera_fov, f32 range, f32 *distance_ptr)
{
v3s16 blockpos_nodes = blockpos_b * MAP_BLOCKSIZE;
return true;
// If block is far away, it's not in sight
- if(d > range * BS)
+ if(d > range)
return false;
// Maximum radius of a block
// If block is (nearly) touching the camera, don't
// bother validating further (that is, render it anyway)
- if(d > block_max_radius * 1.5)
- {
- // Cosine of the angle between the camera direction
- // and the block direction (camera_dir is an unit vector)
- f32 cosangle = dforward / d;
-
- // Compensate for the size of the block
- // (as the block has to be shown even if it's a bit off FOV)
- // This is an estimate.
- cosangle += block_max_radius / dforward;
-
- // If block is not in the field of view, skip it
- //if(cosangle < cos(FOV_ANGLE/2))
- if(cosangle < cos(FOV_ANGLE/2. * 4./3.))
- return false;
+ if(d < block_max_radius)
+ return true;
+
+ // Cosine of the angle between the camera direction
+ // and the block direction (camera_dir is an unit vector)
+ f32 cosangle = dforward / d;
+
+ // Compensate for the size of the block
+ // (as the block has to be shown even if it's a bit off FOV)
+ // This is an estimate, plus an arbitary factor
+ cosangle += block_max_radius / d * 0.5;
+
+ // If block is not in the field of view, skip it
+ if(cosangle < cos(camera_fov / 2))
+ return false;
+
+ return true;
+}
+
+// Creates a string encoded in JSON format (almost equivalent to a C string literal)
+std::string serializeJsonString(const std::string &plain)
+{
+ std::ostringstream os(std::ios::binary);
+ os<<"\"";
+ for(size_t i = 0; i < plain.size(); i++)
+ {
+ char c = plain[i];
+ switch(c)
+ {
+ case '"': os<<"\\\""; break;
+ case '\\': os<<"\\\\"; break;
+ case '/': os<<"\\/"; break;
+ case '\b': os<<"\\b"; break;
+ case '\f': os<<"\\f"; break;
+ case '\n': os<<"\\n"; break;
+ case '\r': os<<"\\r"; break;
+ case '\t': os<<"\\t"; break;
+ default:
+ {
+ if(c >= 32 && c <= 126)
+ {
+ os<<c;
+ }
+ else
+ {
+ u32 cnum = (u32) (u8) c;
+ os<<"\\u"<<std::hex<<std::setw(4)<<std::setfill('0')<<cnum;
+ }
+ break;
+ }
+ }
}
+ os<<"\"";
+ return os.str();
+}
+
+// Reads a string encoded in JSON format
+std::string deSerializeJsonString(std::istream &is)
+{
+ std::ostringstream os(std::ios::binary);
+ char c, c2;
+
+ // Parse initial doublequote
+ is >> c;
+ if(c != '"')
+ throw SerializationError("JSON string must start with doublequote");
+
+ // Parse characters
+ for(;;)
+ {
+ c = is.get();
+ if(is.eof())
+ throw SerializationError("JSON string ended prematurely");
+ if(c == '"')
+ {
+ return os.str();
+ }
+ else if(c == '\\')
+ {
+ c2 = is.get();
+ if(is.eof())
+ throw SerializationError("JSON string ended prematurely");
+ switch(c2)
+ {
+ default: os<<c2; break;
+ case 'b': os<<'\b'; break;
+ case 'f': os<<'\f'; break;
+ case 'n': os<<'\n'; break;
+ case 'r': os<<'\r'; break;
+ case 't': os<<'\t'; break;
+ case 'u':
+ {
+ char hexdigits[4+1];
+ is.read(hexdigits, 4);
+ if(is.eof())
+ throw SerializationError("JSON string ended prematurely");
+ hexdigits[4] = 0;
+ std::istringstream tmp_is(hexdigits, std::ios::binary);
+ int hexnumber;
+ tmp_is >> std::hex >> hexnumber;
+ os<<((char)hexnumber);
+ break;
+ }
+ }
+ }
+ else
+ {
+ os<<c;
+ }
+ }
+ return os.str();
+}
+
+// Get an sha-1 hash of the player's name combined with
+// the password entered. That's what the server uses as
+// their password. (Exception : if the password field is
+// blank, we send a blank password - this is for backwards
+// compatibility with password-less players).
+std::string translatePassword(std::string playername, std::wstring password)
+{
+ if(password.length() == 0)
+ return "";
+
+ std::string slt = playername + wide_to_narrow(password);
+ SHA1 sha1;
+ sha1.addBytes(slt.c_str(), slt.length());
+ unsigned char *digest = sha1.getDigest();
+ std::string pwd = base64_encode(digest, 20);
+ free(digest);
+ return pwd;
+}
+
+
+
+PointedThing::PointedThing():
+ type(POINTEDTHING_NOTHING),
+ node_undersurface(0,0,0),
+ node_abovesurface(0,0,0),
+ object_id(-1)
+{}
+std::string PointedThing::dump() const
+{
+ std::ostringstream os(std::ios::binary);
+ if(type == POINTEDTHING_NOTHING)
+ {
+ os<<"[nothing]";
+ }
+ else if(type == POINTEDTHING_NODE)
+ {
+ const v3s16 &u = node_undersurface;
+ const v3s16 &a = node_abovesurface;
+ os<<"[node under="<<u.X<<","<<u.Y<<","<<u.Z
+ << " above="<<a.X<<","<<a.Y<<","<<a.Z<<"]";
+ }
+ else if(type == POINTEDTHING_OBJECT)
+ {
+ os<<"[object "<<object_id<<"]";
+ }
+ else
+ {
+ os<<"[unknown PointedThing]";
+ }
+ return os.str();
+}
+
+void PointedThing::serialize(std::ostream &os) const
+{
+ writeU8(os, 0); // version
+ writeU8(os, (u8)type);
+ if(type == POINTEDTHING_NOTHING)
+ {
+ // nothing
+ }
+ else if(type == POINTEDTHING_NODE)
+ {
+ writeV3S16(os, node_undersurface);
+ writeV3S16(os, node_abovesurface);
+ }
+ else if(type == POINTEDTHING_OBJECT)
+ {
+ writeS16(os, object_id);
+ }
+}
+
+void PointedThing::deSerialize(std::istream &is)
+{
+ int version = readU8(is);
+ if(version != 0) throw SerializationError(
+ "unsupported PointedThing version");
+ type = (PointedThingType) readU8(is);
+ if(type == POINTEDTHING_NOTHING)
+ {
+ // nothing
+ }
+ else if(type == POINTEDTHING_NODE)
+ {
+ node_undersurface = readV3S16(is);
+ node_abovesurface = readV3S16(is);
+ }
+ else if(type == POINTEDTHING_OBJECT)
+ {
+ object_id = readS16(is);
+ }
+ else
+ {
+ throw SerializationError(
+ "unsupported PointedThingType");
+ }
+}
+
+bool PointedThing::operator==(const PointedThing &pt2) const
+{
+ if(type != pt2.type)
+ return false;
+ if(type == POINTEDTHING_NODE)
+ {
+ if(node_undersurface != pt2.node_undersurface)
+ return false;
+ if(node_abovesurface != pt2.node_abovesurface)
+ return false;
+ }
+ else if(type == POINTEDTHING_OBJECT)
+ {
+ if(object_id != pt2.object_id)
+ return false;
+ }
return true;
}
+bool PointedThing::operator!=(const PointedThing &pt2) const
+{
+ return !(*this == pt2);
+}
projects / oweals / minetest.git / blobdiff