I wrote an aiming subroutine for xtank a while back. I’ll try to lay out how I did it. Disclaimer: I may have made one or more silly mistakes anywhere in here; I’m just trying to reconstruct the reasoning with my rusty math skills. However, I’ll cut to the chase first, since this is a … Read more
If you have your target point P with coordinates r_P = (x,y,z) and a plane with normal n=(nx,ny,nz) you need to define an origin on the plane, as well as two orthogonal directions for x and y. For example if your origin is at r_O = (ox, oy, oz) and your two coordinate axis in … Read more
[*] Alright, I came here looking for an answer and didn’t find something simple and straightforward, so I went ahead and did the dumb but effective (and relatively simple) thing: Monte Carlo optimisation. Very simply put, the algorithm is as follows: Randomly perturb your projection matrix until it projects your known 3D coordinates to your … Read more
Fading a Sprite is almost the-same as moving GameObject over time except that you modify its alpha instead of it’s position. The three most important stuff about fading an Object are Time.deltaTime, Mathf.Lerp/Color.Lerp and coroutine. You need to understand how these work together. Start coroutine, use Time.deltaTime to increment a variable. That variable is used … Read more
For a std::vector the underlying array is dynamically allocated from the heap. If you have e.g. std::vector<std::vector<double>>, then your outer vector would look like {v1, v2, v3, v4, … vn} This looks like each of the inner vectors will be in contiguous memory, and they will, but their underlying arrays will not be contiguous. See … Read more
One of the former students in our lab used some applicable techniques for his PhD thesis. I believe one of them is called “alpha shapes” and is referenced in the following paper: http://www.cis.rit.edu/people/faculty/kerekes/pdfs/AIPR_2007_Gurram.pdf That paper gives some further references you can follow.
Views are all drawn on the same GUI thread which is also used for all user interaction. So if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.
You can use a TableLayoutPanel and add buttons to panel dynamically. If you don’t need interaction with buttons, you can add Label instead. Create square dynamically: public void CreateSquare(int size) { //Remove previously created controls and free resources foreach (Control item in this.Controls) { this.Controls.Remove(item); item.Dispose(); } //Create TableLayoutPanel var panel = new TableLayoutPanel(); panel.RowCount … Read more
Update: Corrected map rendering algorithm, added more illustrations, changed formating. Perhaps the advantage for the “zig-zag” technique for mapping the tiles to the screen can be said that the tile’s x and y coordinates are on the vertical and horizontal axes. “Drawing in a diamond” approach: By drawing an isometric map using “drawing in a … Read more
This is a basic example of scrolling viewable area, where the virtual world is large then the view area. This basically maintains a number of parameters. It maintains the point where in the world the top/left of the view is and the players position within the world. These values are converted back to real world … Read more