I'm creating a Breakout clone in Unity and want to change the direction of the ball based on if the ball hits the left side or the right side of the paddle, as in the original version of the game. What is the best way of accomplishing this? I tried adding angled colliders to my paddle, but that causes the ball to fall slightly through the paddle before hitting the collider and changing direction.
You should have access to the rigid body that you are colliding with, which will tell you the angle you want to bounce at. Then, you do a late modification of the trajectory ("late" as in after your physics are calculated and applied for velocity). Something like this should work:
Rigidbody2D.velocity = newDirection.normalized * Rigidbody2D.velocity.magnitude;
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Please is it possible to make a Player with rigidbody or character controller run on wall just like The Flash. Please guide me on how to implement this.Here's a link of what I'm talking about. Thank you in advance.
Rotate the player to be vertical to the building, adjust the gravity parameter on your rigid body (make it lower so the added force won't be canceled by it) and just add the force (or set the velocity, whatever makes you happy)
I'm going to assume you already know how to move the player around on the ground. All you need to do is create some form of detection for when they want to begin running on the wall (maybe the player presses a button, or walks up to the wall), at which point you will want to do 2 things: rotate the player to have their feet on the wall, and change gravity to be pulling the player into the wall.
If we assume the player is facing the wall when they go up on it, you can just rotate 90 degrees backwards. Changing gravity should be easy too. Once the player is fully rotated, do something like this
Vector3 newGravityVector = tranform.down.normalized
Physics.gravity = transform.down.normalized * 9.8 //9.8 is the default gravitaty value, feel free to use a different multiplier if you wish.
(this script should be attached to your player)
I have a game where u bounce a ball with platform and u have to destroy all boxes but my code for bounceing ball its not working like I want.
It works like a real ball bounce but I want the ball to bounce like a ball in pong where ball don't fall down until it touches wall or platfotm but my ball goes in real life curve.
What I thing with curve is like when u kick a ball in the air and goes in curve but I want it to go unlimitly in flat line to the wall andbounce in a random direction.
Someone have any code ideas?
Make a physics material like the one below and place it on any surface that bounces. It is enough for your ball to have a Rigidbody with drag 0.
Also uncheck gravity to get the following result:
Basic Force Script:
After adding Rigidbody to the ball, you can use the following script for the initial force. Obviously you need more advanced algorithms for further development.
public Vector3 force = new Vector3(80, 40);
void Start() => GetComponent<Rigidbody>().AddForce(force);
Pong/breakout style physics is simpler than you might think.
The balls have no gravity applied to them, so all you need to do is apply a constant velocity to the ball.
When it collides with an object, you would flip the velocity on the axis it collided.
For example:
ball is travelling up at 60px/sec, and horizontally at 120px/sec, at 60fps.
You add (60/60)=1 pixels vertically every frame, and (120/60)=2 horizontally.
It hits a wall, so you flip the horizontal velocity to -120px/sec.
Now it's still going up, but in the opposite direction horizontally.
If it hits a ceiling, same thing but flip the vertical velocity component.
If you'd rather it go in a random direction:
calculate the magnitude of the ball's velocity sqrt(vx^2+vy^2)
find the angle the wall is facing
pick a random angle within 180 degrees of that angle
use trigonometry to get the x/y components of that angle, and multiply by the magnitude.
Don't subtract/add a constant value to the velocity every frame, because then you'd be applying gravity, which isn't what you're looking for.
My unity game have a character with a capsule collider. When the character hit another collider on the spherical part of the capsule, the character is send in the air. How to avoid that?
Here is a video to explain the problem
I already have some solutions but it doesn't really work:
Use a cylinder collider instead of capsule, but it doesn't exist. I tried to make one with meshcollider and the result is not as good as a caspule collider since the meshcollider is not perfectly rounded. I also tried to make one with many rect collider but it produce same problems as meshcollider.
Set a really big gravity force when the character is on the ground, but the problem is that I have inclined planes in the game, so it doesn't work neither.
Thank you for your help
I might not be right but I think you should delete the capsule collider and add a Mesh Collider or you could also just add colliders to each part of the player which would take longer but I think that's what you're needing. So add sphere colliders to the head, box colliders to the arms and etc.
You can propably fix the unwanted behavior:
with a different physics material for your colliders. Removing bounciness may help.
by adjusting scales of your objects.
by changing the collider of the ground from a box collider with sharp edges to a mesh collider with slopes on the edges.
by adding a code that will snap your character to the ground.
There is a great tutorial on character movement from Catlike Coding I can recommend: A series about controlling the movement of a character.
So I'm making a 3D pool game. Basically I have a main camera that when you press a button it adds force to the cue ball based on the position of the camera, which works ok.
But whenever the cue ball hits the wall of the table, it just stops. I want it to smoothly bounce off the wall like a real pool cue ball would.
The cue ball is just a basic sphere Game Object. The walls are basic cubes with colliders.
I have tried Vector3.Reflect with no success. It seems to bounce back a tiny bit but then immediately stops.
Any help would be great!
You should create a PhysicMaterial with low or no friction (both dynamic and static), bounciness = 1 and Bounce Combine = Maximum and then apply that PhysicMaterial to the rigidbody of your sphere
You can do one thing.
Store the ball velocity when it collide with the wall, calculate the reflected direction through Vector3.Reflect and give the stored velocity to the ball in reflected direction.
Hope that this will help you...
Best,
Hardik.
To make bounce on wall we need to create physic material and after that we need to change the value of dynamic friction =0.3 and static friction =
0.3 and bounciness=0.8 and frictionCombine choose Average from dropdown and bouncecombine choose Average .
Hence the ball is start bouncing on the wall by using the upper property.
I'm making a maze whit Unity3D where a ball can roll and find the out way. Because the ball can be hide after a wall, I want to rotate the camera to a better position in function of the direction of the ball.
Take this example: the ball is rolling in to you (in the direction of the black arrow). So you can see or beter can't see, is where the ball is rolling to. So the camera must turn to the other side of the ball. If the ball rolls away from you must the camera turn to the original location.
The problem is now, I know how I can replace the camera but not in function of the direction? Can anyone help me with this? I'm just starting with Unity3D. Language behind I use C#.
Here is another situation where it is better to rotate the camera. (up: is scene, below game mode).
You can use this to set the camera position behind the ball based on the velocity and then the rotation in the direction of the ball
Vector3 offset = new Vector3(1,1,0);
transform.position = ball.transform.position - ball.GetComponent<Rigidbody>().velocity / ball.GetComponent<Rigidbody>().velocity.magnitude + offset;
transform.LookAt (ball.transform.position);