Tagged Questions

Selection methods, eg. in RTS games

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0
votes
0answers
24 views

Resize gameObject when it has extended a restricted area

So here i have an image will provide a better understanding of my problem. So currently i have some white blocks and within the white blocks i have some cyan bordered boxes. So the current problem i ...
1
vote
1answer
64 views

Selection with region (when rendering with shaders and VAO)

I am currently render my geometry using "Modern OpenGL" approach (with shaders and buffers). I have already implemented picking of single primitives using glReadPixels. Now I am faced with problem how ...
12
votes
5answers
262 views

How to make unit selection circles merge?

I would like to know how to make this effect of merged circle selection. Here are images to illustrate: Basically I'm looking for this effect: How the merge effect of the circles can be ...
0
votes
0answers
55 views

How to raycast select a scaled OBB?

I have the OBB picking code to select an OBB with code inspired from Real time Rendering 3 and opengl-tutorial.org. I can successfully select objects that have been moved or rotated. However, I cant ...
1
vote
1answer
208 views

Understanding implementation of glu.PickMatrix() [closed]

I am working on an OpenGL project which requires object selection feature. I use OpenTK framework to do this; however OpenTK doesn't support glu.PickMatrix() method to define the picking region. I ...
0
votes
1answer
185 views

Implementing a 2d Selection Box

I'm in the process of implementing a selection box for my simulation and am having difficulty with something which appears simple. At the moment, I can draw the selection box and accurately select the ...
0
votes
2answers
136 views

How to avoid character to move when selected

I've got a player Class which can walk to a certain point on the screen when left mouse is pressed: if (mState.LeftButton == ButtonState.Released && oldMouseState.LeftButton == ...
2
votes
1answer
68 views

Which part of MVC should be responsible for selecting a unit

Imagine a turn-based tile game, that generally looks like Heroes' combat view. Except for the fact a player can choose any of his units to command. Our team is implementing the game according to MVC ...
1
vote
1answer
457 views

Unity3d select empty gameobjects in scene

I have a pathing system that I am creating in Unity. When you add nodes to denote the path, I create a empty GameObject and render it in OnGUI as a square. The problem that I have is clicking on the ...
1
vote
4answers
235 views

Selecting and moving vertices

How can I identify the correct vertecis and move them in XNA using VertexBuffer? Let's say I have a simple cuboid in my project and want to move one face of it. How would I loop thru vertices, get ...
1
vote
2answers
330 views

How to implement rectangle selection?

I don't know if there is another term for it, but I mean this: You hold down a mouse button. A rectangle forms when you move the mouse around. The units inside the box get selected when you let go of ...
11
votes
4answers
3k views

Cast ray to select block in voxel game

I am developing a game with a Minecraft-like terrain made out of blocks. Since basic rendering and chunk loading is done now, I want to implement block selecting. Therefore I need to find out what ...
4
votes
3answers
1k views

What method replaces GL_SELECT for box selection?

Last 2 weeks I started working on a box selection that selects shapes using GL_SELECT and I just got it working finally. When looking up resources online, there is a significant number of posts that ...
0
votes
1answer
57 views

Scrolling though objects then creating a new instace of this object

In my game when pressing the right mouse button you will place an object on the ground. all objects have the same super class (GameObject). I have a field called selected and will be equal to one ...
1
vote
1answer
220 views

Selection of a mesh with arbitrary region

Considering example: I have a mesh(es) on the OpenGL screen and would like to select a part of it (say for delete purpose). There is a clear way to do the selction via Ray Tracing, or via Selection ...
5
votes
1answer
251 views

Unit selection circle

I do not know whether it's called a circle, or whether it's called a halo or whatever. But, I do know that I want to know what is the game development world term for this. So, how do we call it?
2
votes
2answers
3k views

How can I do Mouse Selection In OpenGL 3.0?

Hello I'm pretty good programmer I've made my own 2D games in SDL and made a gui in 3D using Old OpenGL and Modern OpenGL but.. I'm having problems with trying to click 3D models with opengl I have no ...
1
vote
1answer
281 views

Region selection in OpenGL

If I have a mesh of triangles and going to make a selection on it using a region (and not rectangle using Glu.gluPickMatrix(...);), how can I implement it?
6
votes
1answer
769 views

What are some good methods of implementing RTS-style Box selection?

I'm scouting around for different methods of implementing a typical RTS box selection. This is for 3D game - so I'm looking for methods for finding units within selection box in 3D world. Here is a ...