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@@ -0,0 +1,132 @@
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+#pragma once
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+
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+/*
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+ * float3.h, part of VCMI engine
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+ *
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+ * Authors: listed in file AUTHORS in main folder
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+ *
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+ * License: GNU General Public License v2.0 or later
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+ * Full text of license available in license.txt file, in main folder
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+ *
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+ */
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+
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+/// Class which consists of three float values. Represents position virtual RMG (0;1) area.
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+class float3
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+{
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+public:
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+ float x, y;
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+ si32 z;
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+ inline float3():x(0),y(0),z(0){}; //c-tor, x/y/z initialized to 0
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+ inline float3(const float X, const float Y, const si32 Z):x(X),y(Y),z(Z){}; //c-tor
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+ inline float3(const float3 & val) : x(val.x), y(val.y), z(val.z){} //copy c-tor
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+ inline float3 & operator=(const float3 & val) {x = val.x; y = val.y; z = val.z; return *this;} //assignemt operator
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+ ~float3() {} // d-tor - does nothing
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+ inline float3 operator+(const float3 & i) const //returns float3 with coordinates increased by corresponding coordinate of given float3
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+ {return float3(x+i.x,y+i.y,z+i.z);}
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+ inline float3 operator+(const float i) const //returns float3 with coordinates increased by given numer
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+ {return float3(x+i,y+i,z+i);}
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+ inline float3 operator-(const float3 & i) const //returns float3 with coordinates decreased by corresponding coordinate of given float3
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+ {return float3(x-i.x,y-i.y,z-i.z);}
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+ inline float3 operator-(const float i) const //returns float3 with coordinates decreased by given numer
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+ {return float3(x-i,y-i,z-i);}
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+ inline float3 operator*(const float i) const //returns float3 with plane coordinates decreased by given numer
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+ {return float3(x*i, y*i, z);}
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+ inline float3 operator/(const float i) const //returns float3 with plane coordinates decreased by given numer
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+ {return float3(x/i, y/i, z);}
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+ inline float3 operator-() const //returns opposite position
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+ {return float3(-x,-y,-z);}
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+ inline double dist2d(const float3 &other) const //distance (z coord is not used)
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+ {return std::sqrt((double)(x-other.x)*(x-other.x) + (y-other.y)*(y-other.y));}
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+ inline bool areNeighbours(const float3 &other) const
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+ {return dist2d(other) < 2. && z == other.z;}
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+ inline void operator+=(const float3 & i)
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+ {
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+ x+=i.x;
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+ y+=i.y;
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+ z+=i.z;
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+ }
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+ inline void operator+=(const float & i)
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+ {
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+ x+=i;
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+ y+=i;
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+ z+=i;
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+ }
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+ inline void operator-=(const float3 & i)
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+ {
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+ x-=i.x;
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+ y-=i.y;
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+ z-=i.z;
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+ }
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+ inline void operator-=(const float & i)
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+ {
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+ x+=i;
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+ y+=i;
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+ z+=i;
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+ }
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+ inline void operator*=(const float & i) //scale on plane
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+ {
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+ x*=i;
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+ y*=i;
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+ }
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+ inline void operator/=(const float & i) //scale on plane
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+ {
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+ x/=i;
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+ y/=i;
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+ }
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+
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+ inline bool operator==(const float3 & i) const
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+ {return (x==i.x) && (y==i.y) && (z==i.z);}
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+ inline bool operator!=(const float3 & i) const
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+ {return !(*this==i);}
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+ inline bool operator<(const float3 & i) const
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+ {
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+ if (z<i.z)
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+ return true;
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+ if (z>i.z)
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+ return false;
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+ if (y<i.y)
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+ return true;
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+ if (y>i.y)
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+ return false;
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+ if (x<i.x)
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+ return true;
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+ if (x>i.x)
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+ return false;
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+ return false;
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+ }
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+ inline std::string operator ()() const
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+ {
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+ return "(" + boost::lexical_cast<std::string>(x) +
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+ " " + boost::lexical_cast<std::string>(y) +
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+ " " + boost::lexical_cast<std::string>(z) + ")";
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+ }
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+ inline bool valid() const
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+ {
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+ return z >= 0; //minimal condition that needs to be fulfilled for tiles in the map
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+ }
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+ template <typename Handler> void serialize(Handler &h, const float version)
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+ {
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+ h & x & y & z;
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+ }
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+
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+};
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+inline std::istream & operator>>(std::istream & str, float3 & dest)
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+{
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+ str>>dest.x>>dest.y>>dest.z;
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+ return str;
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+}
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+inline std::ostream & operator<<(std::ostream & str, const float3 & sth)
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+{
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+ return str<<sth.x<<' '<<sth.y<<' '<<sth.z;
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+}
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+
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+struct Shashfloat3
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+{
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+ size_t operator()(float3 const& pos) const
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+ {
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+ size_t ret = std::hash<float>()(pos.x);
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+ vstd::hash_combine(ret, pos.y);
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+ vstd::hash_combine(ret, pos.z);
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+ return ret;
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+ }
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+};
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DjWarmonger