Tagged Questions
5
votes
2answers
209 views
Slerping rotation mirrors
I rotate my game character to watch at the target using the following code:
transform.rotation = Quaternion.Slerp(startQuaternion, lookQuaternion, turningNormalizer*turningSpeed/10f)
...
-1
votes
2answers
92 views
Velocity deacceleration working incorrectly
Basicly, I've tried to code velocity into my game, which works sort of. The deaccelaration works sort of, but not correctly.
The problem is, that the positive values, decreases just fine and dandy to ...
0
votes
1answer
132 views
Rotate around the centre of the screen
I want my camera to rotate around the centre of screen and I'm not sure how to achieve that. I have a rotation in the camera but I'm not sure what its rotating around. (I think it might be rotating ...
1
vote
2answers
119 views
Rotating sprite 180 deg
I should say first, that I have the rotation down. Its just that I want my square to rotate exactly 180 degrees. Currently, it will rotate but it will rotate but by less each jump. So after several ...
4
votes
3answers
127 views
Matrix multiplication - Scene Graphs
I wrote a MatrixStack class in C# to use in a SceneGraph. So, to get the world matrix for an object I am suposed to use:
WorldMatrix = ParentWorld * LocalTransform
But, in fact, it only works as ...
3
votes
3answers
393 views
Getting correct angles between Vector3s
I'm working on a project where you can draw lines between points. You select one point and drag the mouse onto another point and a line is drawn between them.
The line itself is a 3d object which is ...
2
votes
2answers
279 views
Unproject mouse position to tile — extremely jumpy position?
I'm trying to unproject the mouse position to get the position on the X-Z plane of a ray cast from the mouse. The camera is fully controllable by the user. Right now, the algorithm I'm using is...
...
2
votes
4answers
703 views
Simulating a sine wave/oscillating pattern for enemies
I'm creating a simple top down shooter, right now I have an enemy which simply follows the player. I'd like to change things up and have the enemies move towards the player but in a wave like motion. ...
1
vote
2answers
179 views
How to offset particles from point of origin
Hi I'm having troubles off setting particles from a point of origin. I want my particles to spread out after a certain radius from a the point of origin. For example, this is what I have right now:
...
2
votes
2answers
321 views
Calculating the correct particle angle in an outwards explosion
I'm creating a simple particle explosion but am stuck in finding the correct angle to rotate my particle. The effect I'm going for is similar to this:
Where each particle is going outwards from the ...
-1
votes
1answer
370 views
Breakout… Getting the ball reflection X angle when htitting paddle / bricks
Im currently creating a breakout clone for my first ever C# / XNA game. Currently Ive had little trouble creating the paddle object, ball object, and all the bricks. The issue im currently having is ...
3
votes
1answer
311 views
Finding closest object to a location within a specific perpendicular distance to direction vector
I have a location and a direction vector indicating facing, I want to find the closest object to that location that is within some tolerance distance (perpendicular distance) to the ray formed by the ...
1
vote
1answer
718 views
Interpolation between two 3D points?
I'm working with some splines which define a path a character follows (you can see a gameplay video here to get a better understanding of what's going on: http://www.youtube.com/watch?v=BndobjOiZ6g). ...
3
votes
2answers
328 views
Tessellating/Subdividing a quad
I am creating a quad that starts as a single quad, then divides itself multiple times (from 1 -> 4 -> 16 -> 64 -> 256 etc) but I have encounted an issue. When I get to 64 sub divisions only 16 quads ...
3
votes
1answer
352 views
Confused about order of operation when using a Matrix in XNA, C#
Here are two different pieces of code
This is what I started with
Vector2 hold = Vector2.Transform(pos1, mat1);
Matrix inv = Matrix.Invert(mat2);
Vector2 pos2 = Vector2.Transform(hold, inv);
And ...
