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collision: sliding response

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This commit is contained in:
Zack Buhman 2026-03-14 14:39:09 -05:00
parent 0044c3352f
commit f398b583ff
1 changed files with 21 additions and 0 deletions
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21
src/collision_scene.cpp
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@ -347,6 +347,27 @@ namespace collision_scene {
draw_cube(transform, center); draw_cube(transform, center);
} }
//////////////////////////////////////////////////////////////////////
// collision response
//////////////////////////////////////////////////////////////////////
if (min_intersected) {
XMVECTOR origin = min_intersection_point;
XMVECTOR normal = XMVector3Normalize(min_intersection_position - min_intersection_point);
glUniform3f(location.uniform.base_color, 0, 1.0, 1.0);
draw_line(transform, min_intersection_point, min_intersection_point + normal);
XMVECTOR destination = sphere.center + direction;
float eq3 = -XMVectorGetX(XMVector3Dot(normal, origin));
float distance = XMVectorGetX(XMVector3Dot(destination, normal)) + eq3;
XMVECTOR new_destination = destination - normal * distance;
new_destination += normal * sphere.radius;
XMVECTOR new_direction = new_destination - min_intersection_position;
glUniform3f(location.uniform.base_color, 1.0, 0.5, 1.0);
draw_line(transform, min_intersection_position, min_intersection_position + new_direction);
}
glUniform3f(location.uniform.base_color, 0, 0.0, 1.0); glUniform3f(location.uniform.base_color, 0, 0.0, 1.0);
draw_sphere(transform, point_position[0], 0.5); draw_sphere(transform, point_position[0], 0.5);
glUniform3f(location.uniform.base_color, 0, 0.5, 1.0); glUniform3f(location.uniform.base_color, 0, 0.5, 1.0);