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authorDan Goodliffe <dan@randomdan.homeip.net>2023-11-26 13:51:33 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2023-11-26 14:14:13 +0000
commit7fba471728f2216d7e3b7900297fc3b3531e286c (patch)
tree5caef3b2efc23aefccb215ec9005cd8e7d2e91b8 /lib/maths.h
parentFix todo for handling a terrain walk from outside the mesh (diff)
parentModel positions as integers (diff)
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Merge branch 'ints' into terrain
Conflicts fix, compiles, some test failures remain. Trees not added, possibility of OM invalid handle assertion failures, normals broken due to integer overflow in Newell's method.
Diffstat (limited to 'lib/maths.h')
-rw-r--r--lib/maths.h61
1 files changed, 31 insertions, 30 deletions
diff --git a/lib/maths.h b/lib/maths.h
index b95b706..67b2a15 100644
--- a/lib/maths.h
+++ b/lib/maths.h
@@ -1,5 +1,6 @@
#pragma once
+#include "config/types.h"
#include <cmath>
#include <glm/glm.hpp>
#include <glm/gtc/constants.hpp>
@@ -9,7 +10,7 @@
struct Arc : public std::pair<float, float> {
using std::pair<float, float>::pair;
- Arc(const glm::vec3 & centre3, const glm::vec3 & e0p, const glm::vec3 & e1p);
+ Arc(const Position3D & centre3, const Position3D & e0p, const Position3D & e1p);
float
operator[](unsigned int i) const
@@ -18,19 +19,19 @@ struct Arc : public std::pair<float, float> {
}
};
-constexpr const glm::vec3 origin {0, 0, 0};
-constexpr const glm::vec3 up {0, 0, 1};
-constexpr const glm::vec3 down {0, 0, -1};
-constexpr const glm::vec3 north {0, 1, 0};
-constexpr const glm::vec3 south {0, -1, 0};
-constexpr const glm::vec3 east {1, 0, 0};
-constexpr const glm::vec3 west {-1, 0, 0};
+constexpr const Position3D origin {0, 0, 0};
+constexpr const Position3D up {0, 0, 1};
+constexpr const Position3D down {0, 0, -1};
+constexpr const Position3D north {0, 1, 0};
+constexpr const Position3D south {0, -1, 0};
+constexpr const Position3D east {1, 0, 0};
+constexpr const Position3D west {-1, 0, 0};
constexpr auto half_pi {glm::half_pi<float>()};
constexpr auto quarter_pi {half_pi / 2};
constexpr auto pi {glm::pi<float>()};
constexpr auto two_pi {glm::two_pi<float>()};
-glm::mat4 flat_orientation(const glm::vec3 & diff);
+glm::mat4 flat_orientation(const Rotation3D & diff);
// C++ wrapper for C's sincosf, but with references, not pointers
inline auto
@@ -39,10 +40,10 @@ sincosf(float a, float & s, float & c)
return sincosf(a, &s, &c);
}
-inline glm::vec2
+inline Rotation2D
sincosf(float a)
{
- glm::vec2 sc;
+ Rotation2D sc;
sincosf(a, sc.x, sc.y);
return sc;
}
@@ -51,11 +52,11 @@ glm::mat2 rotate_flat(float);
glm::mat4 rotate_roll(float);
glm::mat4 rotate_yaw(float);
glm::mat4 rotate_pitch(float);
-glm::mat4 rotate_yp(glm::vec2);
-glm::mat4 rotate_ypr(glm::vec3);
+glm::mat4 rotate_yp(Rotation2D);
+glm::mat4 rotate_ypr(Rotation3D);
-float vector_yaw(const glm::vec3 & diff);
-float vector_pitch(const glm::vec3 & diff);
+float vector_yaw(const Direction3D & diff);
+float vector_pitch(const Direction3D & diff);
float round_frac(const float & v, const float & frac);
@@ -87,26 +88,26 @@ perspective_divide(glm::vec<4, T, Q> v)
return v / v.w;
}
-constexpr inline glm::vec2
-operator!(const glm::vec3 & v)
+constexpr inline Position2D
+operator!(const Position3D & v)
{
return {v.x, v.y};
}
-constexpr inline glm::vec3
-operator^(const glm::vec2 & v, float z)
+constexpr inline Position3D
+operator^(const Position2D & v, float z)
{
return {v.x, v.y, z};
}
constexpr inline glm::vec4
-operator^(const glm::vec3 & v, float w)
+operator^(const Position3D & v, float w)
{
return {v.x, v.y, v.z, w};
}
-constexpr inline glm::vec3
-operator!(const glm::vec2 & v)
+constexpr inline Position3D
+operator!(const Position2D & v)
{
return v ^ 0.F;
}
@@ -125,15 +126,15 @@ operator||(const glm::vec<L, T, Q> v1, const T v2)
return {v1, v2};
}
-inline glm::vec3
-operator%(const glm::vec3 & p, const glm::mat4 & mutation)
+inline Position3D
+operator%(const Position3D & p, const glm::mat4 & mutation)
{
const auto p2 = mutation * (p ^ 1);
return p2 / p2.w;
}
-inline glm::vec3
-operator%=(glm::vec3 & p, const glm::mat4 & mutation)
+inline Position3D
+operator%=(Position3D & p, const glm::mat4 & mutation)
{
return p = p % mutation;
}
@@ -146,10 +147,10 @@ arc_length(const Arc & arc)
float normalize(float ang);
-std::pair<glm::vec2, bool> find_arc_centre(glm::vec2 start, float entrys, glm::vec2 end, float entrye);
-std::pair<glm::vec2, bool> find_arc_centre(glm::vec2 start, glm::vec2 ad, glm::vec2 end, glm::vec2 bd);
-std::pair<float, float> find_arcs_radius(glm::vec2 start, float entrys, glm::vec2 end, float entrye);
-float find_arcs_radius(glm::vec2 start, glm::vec2 ad, glm::vec2 end, glm::vec2 bd);
+std::pair<Position2D, bool> find_arc_centre(Position2D start, float entrys, Position2D end, float entrye);
+std::pair<Position2D, bool> find_arc_centre(Position2D start, Position2D ad, Position2D end, Position2D bd);
+std::pair<float, float> find_arcs_radius(Position2D start, float entrys, Position2D end, float entrye);
+float find_arcs_radius(Position2D start, Position2D ad, Position2D end, Position2D bd);
template<typename T>
auto