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a40fc77762
5 changed files with 2 additions and 184 deletions
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@ -6,7 +6,7 @@ set(SC_3D_CollisionDetectionHelpers_HEADERS "${CMAKE_CURRENT_SOURCE_DIR}/src/sc_
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add_library(SC_3D_CollisionDetectionHelpers ${SC_3D_CollisionDetectionHelpers_SOURCES})
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set_target_properties(SC_3D_CollisionDetectionHelpers PROPERTIES VERSION 2.2.0 SOVERSION 2)
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set_target_properties(SC_3D_CollisionDetectionHelpers PROPERTIES VERSION 2.1.0 SOVERSION 2)
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target_compile_features(SC_3D_CollisionDetectionHelpers PUBLIC cxx_std_20)
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if(NOT DEFINED CMAKE_BUILD_TYPE OR "${CMAKE_BUILD_TYPE}" STREQUAL "")
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@ -1,13 +1,9 @@
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# Changelog
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## Version 2.2.0
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## Upcoming Changes
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Refactoring of internally used function.
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Add functions to convert Sphere and GenericBox to AABB.
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Add function to combine two AABBs.
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## Version 2.1.0
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Refactoring of internally used function(s).
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107
src/sc_sacd.cpp
107
src/sc_sacd.cpp
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@ -572,110 +572,3 @@ SC_SACD_Vec3 SC_SACD_Closest_Point(const SC_SACD_Vec3 *pos,
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float SC_SACD_Vec3_Length(const SC_SACD_Vec3 vec) {
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return std::sqrt(SC_SACD_Dot_Product(vec, vec));
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}
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SC_SACD_AABB_Box SC_SACD_Sphere_To_AABB(const SC_SACD_Sphere s) {
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SC_SACD_AABB_Box aabb{};
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aabb.x = s.x;
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aabb.y = s.y;
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aabb.z = s.z;
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aabb.width = s.radius * 2.0F;
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aabb.height = s.radius * 2.0F;
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aabb.depth = s.radius * 2.0F;
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return aabb;
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}
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SC_SACD_AABB_Box SC_SACD_Generic_Box_To_AABB(const SC_SACD_Generic_Box s) {
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SC_SACD_AABB_Box aabb{};
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auto corners = SC_SACD_Get_Box_Corners(&s);
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SC_SACD_Vec3 min{INFINITY, INFINITY, INFINITY};
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SC_SACD_Vec3 max{-INFINITY, -INFINITY, -INFINITY};
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for (const auto &corner : corners) {
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if (corner.x < min.x) {
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min.x = corner.x;
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}
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if (corner.y < min.y) {
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min.y = corner.y;
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}
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if (corner.z < min.z) {
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min.z = corner.z;
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}
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if (corner.x > max.x) {
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max.x = corner.x;
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}
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if (corner.y > max.y) {
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max.y = corner.y;
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}
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if (corner.z > max.z) {
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max.z = corner.z;
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}
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}
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aabb.width = max.x - min.x;
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aabb.height = max.y - min.y;
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aabb.depth = max.z - min.z;
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aabb.x = min.x + aabb.width / 2.0F;
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aabb.y = min.y + aabb.height / 2.0F;
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aabb.z = min.z + aabb.depth / 2.0F;
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return aabb;
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}
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SC_SACD_AABB_Box SC_SACD_AABB_Combine(const SC_SACD_AABB_Box a,
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const SC_SACD_AABB_Box b) {
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SC_SACD_Vec3 min, max;
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// Populate min values.
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float temp_a = a.x - a.width / 2.0F;
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float temp_b = b.x - b.width / 2.0F;
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min.x = temp_a < temp_b ? temp_a : temp_b;
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temp_a = a.y - a.height / 2.0F;
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temp_b = b.y - b.height / 2.0F;
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min.y = temp_a < temp_b ? temp_a : temp_b;
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temp_a = a.z - a.depth / 2.0F;
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temp_b = b.z - b.depth / 2.0F;
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min.z = temp_a < temp_b ? temp_a : temp_b;
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// Populate max values.
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temp_a = a.x + a.width / 2.0F;
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temp_b = b.x + b.width / 2.0F;
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max.x = temp_a > temp_b ? temp_a : temp_b;
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temp_a = a.y + a.height / 2.0F;
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temp_b = b.y + b.height / 2.0F;
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max.y = temp_a > temp_b ? temp_a : temp_b;
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temp_a = a.z + a.depth / 2.0F;
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temp_b = b.z + b.depth / 2.0F;
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max.z = temp_a > temp_b ? temp_a : temp_b;
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// Populate the result.
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temp_a = max.x - min.x;
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temp_b = max.y - min.y;
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float temp_c = max.z - min.z;
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return SC_SACD_AABB_Box{min.x + temp_a / 2.0F,
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min.y + temp_b / 2.0F,
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min.z + temp_c / 2.0F,
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temp_a,
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temp_b,
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temp_c};
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}
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@ -133,14 +133,6 @@ SC_SACD_EXPORT SC_SACD_Vec3 SC_SACD_Closest_Point(const SC_SACD_Vec3 *pos,
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SC_SACD_EXPORT float SC_SACD_Vec3_Length(const SC_SACD_Vec3 vec);
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SC_SACD_EXPORT SC_SACD_AABB_Box SC_SACD_Sphere_To_AABB(const SC_SACD_Sphere s);
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SC_SACD_EXPORT SC_SACD_AABB_Box
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SC_SACD_Generic_Box_To_AABB(const SC_SACD_Generic_Box s);
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/// Combines AABB's such that the new AABB encompasses the two AABB's.
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SC_SACD_EXPORT SC_SACD_AABB_Box SC_SACD_AABB_Combine(const SC_SACD_AABB_Box a,
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const SC_SACD_AABB_Box b);
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#ifdef __cplusplus
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}
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#endif
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63
src/test.cpp
63
src/test.cpp
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@ -633,69 +633,6 @@ int main() {
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CHECK_TRUE(SC_SACD_Generic_Box_Collision(&a, &b));
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}
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// Test Sphere/GenericBox to AABB.
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{
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SC_SACD_Sphere s{10.0F, 10.0F, 10.0F, 5.0F};
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SC_SACD_AABB_Box aabb = SC_SACD_Sphere_To_AABB(s);
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CHECK_FLOAT(aabb.x, s.x);
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CHECK_FLOAT(aabb.y, s.y);
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CHECK_FLOAT(aabb.z, s.z);
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CHECK_FLOAT(aabb.width, s.radius * 2.0F);
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CHECK_FLOAT(aabb.height, s.radius * 2.0F);
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CHECK_FLOAT(aabb.depth, s.radius * 2.0F);
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SC_SACD_Generic_Box box = SC_SACD_Generic_Box_Default();
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box.x = 20.0F;
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box.y = 20.0F;
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box.z = 20.0F;
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aabb = SC_SACD_Generic_Box_To_AABB(box);
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CHECK_FLOAT(aabb.x, box.x);
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CHECK_FLOAT(aabb.y, box.y);
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CHECK_FLOAT(aabb.z, box.z);
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CHECK_FLOAT(aabb.width, box.width);
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CHECK_FLOAT(aabb.height, box.height);
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CHECK_FLOAT(aabb.depth, box.depth);
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box.transform =
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SC_SACD_Rotation_Mat4_ZAxis(std::numbers::pi_v<float> / 4.0F);
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aabb = SC_SACD_Generic_Box_To_AABB(box);
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CHECK_FLOAT(aabb.x, box.x);
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CHECK_FLOAT(aabb.y, box.y);
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CHECK_FLOAT(aabb.z, box.z);
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CHECK_FLOAT(aabb.width, std::sqrt(2.0F) * 2.0F);
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CHECK_FLOAT(aabb.height, std::sqrt(2.0F) * 2.0F);
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CHECK_FLOAT(aabb.depth, box.depth);
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auto translate = SC_SACD_Translate_Mat4(-5.0F, -4.0F, 1.0F);
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box.transform = SC_SACD_Mat4_Mult(&translate, &box.transform);
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aabb = SC_SACD_Generic_Box_To_AABB(box);
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CHECK_FLOAT(aabb.x, box.x - 5.0F);
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CHECK_FLOAT(aabb.y, box.y - 4.0F);
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CHECK_FLOAT(aabb.z, box.z + 1.0F);
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CHECK_FLOAT(aabb.width, std::sqrt(2.0F) * 2.0F);
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CHECK_FLOAT(aabb.height, std::sqrt(2.0F) * 2.0F);
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CHECK_FLOAT(aabb.depth, box.depth);
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}
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// Test combining AABB.
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{
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SC_SACD_AABB_Box a{5.0F, 5.0F, 5.0F, 2.0F, 2.0F, 2.0F};
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SC_SACD_AABB_Box b{-3.0F, -3.0F, -3.0F, 2.0F, 2.0F, 2.0F};
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auto combined = SC_SACD_AABB_Combine(a, b);
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CHECK_FLOAT(combined.x, (7.0F - 5.0F) / 2.0F);
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CHECK_FLOAT(combined.y, (7.0F - 5.0F) / 2.0F);
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CHECK_FLOAT(combined.z, (7.0F - 5.0F) / 2.0F);
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CHECK_FLOAT(combined.width, 10.0F);
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CHECK_FLOAT(combined.height, 10.0F);
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CHECK_FLOAT(combined.depth, 10.0F);
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}
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std::cout << "Checks checked: " << checks_checked << '\n'
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<< "Checks passed: " << checks_passed << '\n';
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