mgs/ecsgame
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

Attempt at constant speed

Browse Source 
Not working because linearly increasing t doesn't imply constant velocity within a segment between two points. Seems like a more complex approach will be necessary
This commit is contained in:
karl 2020-10-03 00:56:49 +02:00
parent 09897240d1
commit cf19af1142
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
ECS/Components/PathMove.h
View File

@ -18,7 +18,12 @@ struct PathMove {
std::vector<glm::quat> views; std::vector<glm::quat> views;
}; };
PathMove(double speed, Path path, Views views) : speed(speed), path(path), views(views) {} PathMove(double speed, Path path, Views views) : speed(speed), path(path), views(views) {
// Calculate distances
for (int i = 0; i < path.points.size() - 1; i++) {
distances.emplace_back(glm::distance(path.points[i], path.points[i + 1]));
}
}
double speed; double speed;
float time_passed = 0.0; float time_passed = 0.0;
@ -28,5 +33,6 @@ struct PathMove {
Path path; Path path;
Views views; Views views;
std::vector<float> distances;
}; };
#endif // __PATHMOVE_H__ #endif // __PATHMOVE_H__

5
ECS/Systems/PathMoveSystem.h
View File

@ -85,7 +85,8 @@ class PathMoveSystem : public EntitySystem, public EventSubscriber<InputEvent> {
PathMove::Path path = pathmove->path; PathMove::Path path = pathmove->path;
// Add the passed time // Add the passed time
pathmove->time_passed += deltaTime; float desired_distance = deltaTime * pathmove->speed; // TODO
pathmove->time_passed += desired_distance / pathmove->distances[pathmove->current_point_index];
// Shorthand for number of points in the path // Shorthand for number of points in the path
int num_points = path.points.size(); int num_points = path.points.size();
@ -171,6 +172,8 @@ class PathMoveSystem : public EntitySystem, public EventSubscriber<InputEvent> {
// Apply // Apply
transform->set_rotation_from_quat(result); transform->set_rotation_from_quat(result);
std::cout << pathmove->time_passed << std::endl;
}); });
} }