X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Futility.h;h=07216a27decfb89a84762e5768c7eab70d351ba7;hb=ef0ec3155440b770103cc5ad36819659d7ce2c1b;hp=98fa83e8928e5a116d265b89666dfa3432fd5ec5;hpb=28660b4c1af1b1b6ac2d3fda6984bda2a1199dc1;p=dragonfireclient.git

diff --git a/src/utility.h b/src/utility.h
index 98fa83e89..07216a27d 100644
--- a/src/utility.h
+++ b/src/utility.h
@@ -32,9 +32,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "common_irrlicht.h"
 #include "debug.h"
-#include "strfnd.h"
 #include "exceptions.h"
 #include "porting.h"
+#include "strfnd.h" // For trim()
 
 extern const v3s16 g_6dirs[6];
 
@@ -104,13 +104,6 @@ inline s32 readS32(u8 *data){
 	return (s32)readU32(data);
 }
 
-inline void writeF1000(u8 *data, f32 i){
-	writeS32(data, i*1000);
-}
-inline f32 readF1000(u8 *data){
-	return (f32)readS32(data)/1000.;
-}
-
 inline void writeS16(u8 *data, s16 i){
 	writeU16(data, (u16)i);
 }
@@ -118,6 +111,20 @@ inline s16 readS16(u8 *data){
 	return (s16)readU16(data);
 }
 
+inline void writeS8(u8 *data, s8 i){
+	writeU8(data, (u8)i);
+}
+inline s8 readS8(u8 *data){
+	return (s8)readU8(data);
+}
+
+inline void writeF1000(u8 *data, f32 i){
+	writeS32(data, i*1000);
+}
+inline f32 readF1000(u8 *data){
+	return (f32)readS32(data)/1000.;
+}
+
 inline void writeV3S32(u8 *data, v3s32 p)
 {
 	writeS32(&data[0], p.X);
@@ -148,6 +155,19 @@ inline v3f readV3F1000(u8 *data)
 	return p;
 }
 
+inline void writeV2F1000(u8 *data, v2f p)
+{
+	writeF1000(&data[0], p.X);
+	writeF1000(&data[4], p.Y);
+}
+inline v2f readV2F1000(u8 *data)
+{
+	v2f p;
+	p.X = (float)readF1000(&data[0]);
+	p.Y = (float)readF1000(&data[4]);
+	return p;
+}
+
 inline void writeV2S16(u8 *data, v2s16 p)
 {
 	writeS16(&data[0], p.X);
@@ -225,7 +245,7 @@ inline u16 readU16(std::istream &is)
 inline void writeU32(std::ostream &os, u32 p)
 {
 	char buf[4];
-	writeU16((u8*)buf, p);
+	writeU32((u8*)buf, p);
 	os.write(buf, 4);
 }
 inline u32 readU32(std::istream &is)
@@ -235,6 +255,45 @@ inline u32 readU32(std::istream &is)
 	return readU32((u8*)buf);
 }
 
+inline void writeS32(std::ostream &os, s32 p)
+{
+	char buf[4];
+	writeS32((u8*)buf, p);
+	os.write(buf, 4);
+}
+inline s32 readS32(std::istream &is)
+{
+	char buf[4];
+	is.read(buf, 4);
+	return readS32((u8*)buf);
+}
+
+inline void writeS16(std::ostream &os, s16 p)
+{
+	char buf[2];
+	writeS16((u8*)buf, p);
+	os.write(buf, 2);
+}
+inline s16 readS16(std::istream &is)
+{
+	char buf[2];
+	is.read(buf, 2);
+	return readS16((u8*)buf);
+}
+
+inline void writeS8(std::ostream &os, s8 p)
+{
+	char buf[1];
+	writeS8((u8*)buf, p);
+	os.write(buf, 1);
+}
+inline s8 readS8(std::istream &is)
+{
+	char buf[1];
+	is.read(buf, 1);
+	return readS8((u8*)buf);
+}
+
 inline void writeF1000(std::ostream &os, f32 p)
 {
 	char buf[4];
@@ -261,6 +320,45 @@ inline v3f readV3F1000(std::istream &is)
 	return readV3F1000((u8*)buf);
 }
 
+inline void writeV2F1000(std::ostream &os, v2f p)
+{
+	char buf[8];
+	writeV2F1000((u8*)buf, p);
+	os.write(buf, 8);
+}
+inline v2f readV2F1000(std::istream &is)
+{
+	char buf[8];
+	is.read(buf, 8);
+	return readV2F1000((u8*)buf);
+}
+
+inline void writeV2S16(std::ostream &os, v2s16 p)
+{
+	char buf[4];
+	writeV2S16((u8*)buf, p);
+	os.write(buf, 4);
+}
+inline v2s16 readV2S16(std::istream &is)
+{
+	char buf[4];
+	is.read(buf, 4);
+	return readV2S16((u8*)buf);
+}
+
+inline void writeV3S16(std::ostream &os, v3s16 p)
+{
+	char buf[6];
+	writeV3S16((u8*)buf, p);
+	os.write(buf, 6);
+}
+inline v3s16 readV3S16(std::istream &is)
+{
+	char buf[6];
+	is.read(buf, 6);
+	return readV3S16((u8*)buf);
+}
+
 /*
 	None of these are used at the moment
 */
@@ -367,7 +465,7 @@ class Buffer
 		else
 			data = NULL;
 	}
-	Buffer(T *t, unsigned int size)
+	Buffer(const T *t, unsigned int size)
 	{
 		m_size = size;
 		if(size != 0)
@@ -596,10 +694,45 @@ class TimeTaker
 	u32 *m_result;
 };
 
-#ifndef SERVER
-// Sets the color of all vertices in the mesh
-void setMeshVerticesColor(scene::IMesh* mesh, video::SColor& color);
-#endif
+// Tests if two strings are equal, optionally case insensitive
+inline bool str_equal(const std::wstring& s1, const std::wstring& s2,
+		bool case_insensitive = false)
+{
+	if(case_insensitive)
+	{
+		if(s1.size() != s2.size())
+			return false;
+		for(size_t i = 0; i < s1.size(); ++i)
+			if(tolower(s1[i]) != tolower(s2[i]))
+				return false;
+		return true;
+	}
+	else
+	{
+		return s1 == s2;
+	}
+}
+
+// Tests if the second string is a prefix of the first, optionally case insensitive
+inline bool str_starts_with(const std::wstring& str, const std::wstring& prefix,
+		bool case_insensitive = false)
+{
+	if(str.size() < prefix.size())
+		return false;
+	if(case_insensitive)
+	{
+		for(size_t i = 0; i < prefix.size(); ++i)
+			if(tolower(str[i]) != tolower(prefix[i]))
+				return false;
+	}
+	else
+	{
+		for(size_t i = 0; i < prefix.size(); ++i)
+			if(str[i] != prefix[i])
+				return false;
+	}
+	return true;
+}
 
 // Calculates the borders of a "d-radius" cube
 inline void getFacePositions(core::list<v3s16> &list, u16 d)
@@ -902,7 +1035,7 @@ inline bool is_yes(const std::string &s)
 	return false;
 }
 
-inline s32 stoi(const std::string &s, s32 min, s32 max)
+inline s32 mystoi(const std::string &s, s32 min, s32 max)
 {
 	s32 i = atoi(s.c_str());
 	if(i < min)
@@ -914,27 +1047,33 @@ inline s32 stoi(const std::string &s, s32 min, s32 max)
 
 
 // MSVC2010 includes it's own versions of these
-#if !defined(_MSC_VER) || _MSC_VER < 1600
+//#if !defined(_MSC_VER) || _MSC_VER < 1600
 
-inline s32 stoi(std::string s)
+inline s32 mystoi(const std::string &s)
 {
 	return atoi(s.c_str());
 }
 
-inline s32 stoi(std::wstring s)
+inline s32 mystoi(const std::wstring &s)
 {
 	return atoi(wide_to_narrow(s).c_str());
 }
 
-inline float stof(std::string s)
+inline float mystof(const std::string &s)
 {
-	float f;
+	// This crap causes a segfault in certain cases on MinGW
+	/*float f;
 	std::istringstream ss(s);
 	ss>>f;
-	return f;
+	return f;*/
+	// This works in that case
+	return atof(s.c_str());
 }
 
-#endif
+//#endif
+
+#define stoi mystoi
+#define stof mystof
 
 inline std::string itos(s32 i)
 {
@@ -1469,6 +1608,15 @@ inline std::string wrap_rows(const std::string &from, u32 rowlen)
 #define MYMIN(a,b) ((a)<(b)?(a):(b))
 #define MYMAX(a,b) ((a)>(b)?(a):(b))
 
+/*
+	Returns nearest 32-bit integer for given floating point number.
+	<cmath> and <math.h> in VC++ don't provide round().
+*/
+inline s32 myround(f32 f)
+{
+	return floor(f + 0.5);
+}
+
 /*
 	Returns integer position of node in given floating point position
 */
@@ -1598,23 +1746,13 @@ inline std::string deSerializeLongString(std::istream &is)
 	return s;
 }
 
-//
+// Creates a string encoded in JSON format (almost equivalent to a C string literal)
+std::string serializeJsonString(const std::string &plain);
 
-inline u32 time_to_daynight_ratio(u32 time_of_day)
-{
-	const s32 daylength = 16;
-	const s32 nightlength = 6;
-	const s32 daytimelength = 8;
-	s32 d = daylength;
-	s32 t = (((time_of_day)%24000)/(24000/d));
-	if(t < nightlength/2 || t >= d - nightlength/2)
-		//return 300;
-		return 350;
-	else if(t >= d/2 - daytimelength/2 && t < d/2 + daytimelength/2)
-		return 1000;
-	else
-		return 750;
-}
+// Reads a string encoded in JSON format
+std::string deSerializeJsonString(std::istream &is);
+
+//
 
 // Random helper. Usually d=BS
 inline core::aabbox3d<f32> getNodeBox(v3s16 p, float d)
@@ -1655,7 +1793,73 @@ class IntervalLimiter
 	float m_accumulator;
 };
 
+/*
+	Splits a list into "pages". For example, the list [1,2,3,4,5] split
+	into two pages would be [1,2,3],[4,5]. This function computes the
+	minimum and maximum indices of a single page.
+
+	length: Length of the list that should be split
+	page: Page number, 1 <= page <= pagecount
+	pagecount: The number of pages, >= 1
+	minindex: Receives the minimum index (inclusive).
+	maxindex: Receives the maximum index (exclusive).
+
+	Ensures 0 <= minindex <= maxindex <= length.
+*/
+inline void paging(u32 length, u32 page, u32 pagecount, u32 &minindex, u32 &maxindex)
+{
+	if(length < 1 || pagecount < 1 || page < 1 || page > pagecount)
+	{
+		// Special cases or invalid parameters
+		minindex = maxindex = 0;
+	}
+	else if(pagecount <= length)
+	{
+		// Less pages than entries in the list:
+		// Each page contains at least one entry
+		minindex = (length * (page-1) + (pagecount-1)) / pagecount;
+		maxindex = (length * page + (pagecount-1)) / pagecount;
+	}
+	else
+	{
+		// More pages than entries in the list:
+		// Make sure the empty pages are at the end
+		if(page < length)
+		{
+			minindex = page-1;
+			maxindex = page;
+		}
+		else
+		{
+			minindex = 0;
+			maxindex = 0;
+		}
+	}
+}
+
 std::string translatePassword(std::string playername, std::wstring password);
 
+enum PointedThingType
+{
+	POINTEDTHING_NOTHING,
+	POINTEDTHING_NODE,
+	POINTEDTHING_OBJECT
+};
+
+struct PointedThing
+{
+	PointedThingType type;
+	v3s16 node_undersurface;
+	v3s16 node_abovesurface;
+	s16 object_id;
+
+	PointedThing();
+	std::string dump() const;
+	void serialize(std::ostream &os) const;
+	void deSerialize(std::istream &is);
+	bool operator==(const PointedThing &pt2) const;
+	bool operator!=(const PointedThing &pt2) const;
+};
+
 #endif