Pointy-top hex metrics, directions and vertex helpers. 更多...

#include <algorithm>
#include <cmath>
#include <cstdint>

类
struct	eve::hexmap::HexVec3
	Minimal 3-component float vector used by the hex mesh builders. 更多...

struct	eve::hexmap::HexVec4
	Four-component float vector, matching the reference four-channel noise sample. 更多...

class	eve::hexmap::HexMetrics
	Hexagon metrics shared by the map model and every mesh builder. 更多...

struct	eve::hexmap::EdgeVertices
	Five sample points along one hex edge, from v1 to v5. 更多...

命名空间
namespace	eve
	Build metadata (engine git commit, build time, third-party version).

namespace	eve::hexmap

枚举
enum class	eve::hexmap::HexDirection : std::int32_t { eve::hexmap::NE = 0 , eve::hexmap::E = 1 , eve::hexmap::SE = 2 , eve::hexmap::SW = 3 , eve::hexmap::W = 4 , eve::hexmap::NW = 5 }
	Hex facing directions, counter-clockwise from north-east. 更多...

enum class	eve::hexmap::HexEdgeType : std::int32_t { eve::hexmap::Flat = 0 , eve::hexmap::Slope = 1 , eve::hexmap::Cliff = 2 }
	Relationship between two neighbouring cells of different elevation. 更多...

函数
constexpr HexVec3	eve::hexmap::operator+ (HexVec3 a, HexVec3 b) noexcept
	Operator +.

constexpr HexVec3	eve::hexmap::operator- (HexVec3 a, HexVec3 b) noexcept
	Operator -.

constexpr HexVec3	eve::hexmap::operator* (HexVec3 a, float s) noexcept
	Operator *.

constexpr HexVec3	eve::hexmap::operator* (float s, HexVec3 a) noexcept
	Operator *.

constexpr HexVec3 &	eve::hexmap::operator+= (HexVec3 &a, HexVec3 b) noexcept
	Operator +=.

constexpr HexVec3	eve::hexmap::lerp (HexVec3 a, HexVec3 b, float t) noexcept
	Linear interpolation between two positions.

constexpr HexVec3	eve::hexmap::weightsLerp (HexVec3 a, HexVec3 b, float t) noexcept
	Blends the three terrain-layer weights of a hex vertex.

constexpr HexDirection	eve::hexmap::opposite (HexDirection d) noexcept
	The direction opposite to `d`.

constexpr HexDirection	eve::hexmap::previous (HexDirection d) noexcept
	The next direction counter-clockwise (NE wraps to NW).

constexpr HexDirection	eve::hexmap::next (HexDirection d) noexcept
	The next direction clockwise (NW wraps to NE).

constexpr HexDirection	eve::hexmap::previous2 (HexDirection d) noexcept
	Two steps counter-clockwise.

constexpr HexDirection	eve::hexmap::next2 (HexDirection d) noexcept
	Two steps clockwise.

constexpr HexEdgeType	eve::hexmap::edgeType (int elevation1, int elevation2) noexcept
	The relationship between two elevations (single-step changes are slopes).

变量
constexpr std::int32_t	eve::hexmap::kHexDirectionCount = 6
	Number of hex edges / facing directions.

详细描述

Pointy-top hex metrics, directions and vertex helpers.

在文件 HexMetrics.h 中定义.

类