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Questions tagged [selection]

Selection methods, eg. in RTS games

-1
votes
1answer
57 views

Having trouble making more than 1 clickable object

I am a student trying to figure out how to make multiple clickable objects in pygame. I was able to make 1 working clickable object (dx,dy) work, but when I tried to make another clickable object (qx,...
1
vote
1answer
146 views

Handling mouse input depending on selected unit and clicked tile

I am making a turn-based tactical game (think something like X-Com) and I am currently trying to figure out how to handle mouse input in a clean way without a mess of if-statements. I have a lot of ...
0
votes
1answer
31 views

Using Gimp and clone tool. Source selection selects center of four pixels

I am using gimp to make tilesets. When I use the clone tool and hold ctrl to select the source, the selection is in the center of four pixels instead of just one pixel. I don't know if I am doing ...
1
vote
1answer
152 views

In PhaserJS, how do I get a clicked Physics.P2 body's data?

I have a sprite with Phaser.Physics.P2 enabled, using a custom shape loaded with loadPolygon() from a ...
0
votes
1answer
621 views

How to handle focus on a custom actor in Unreal Engine?

I created a custom actor, placed it on my scene and selected it. When I press "F" to focus on it, the camera zoom back very far from the scene, probably because I didn't implement the method supposed ...
4
votes
1answer
129 views

Selecting the closest point in perspective view mode

I'm trying to improve my algorithm for selecting points in perspective view mode (OpenGL/Qt/C++). The current implementation works as follows. The user clicks on a certain ...
0
votes
2answers
92 views

Implementing grid based selection box

What is a good way of implementing a RTS selection box for tiles on a grid? I'm making a game with some similarities to Evil Genius, the building in particular. In that game you click one place, drag ...
9
votes
3answers
623 views

How to hide a post-processed mesh outline when/where the mesh is hidden

I'm working on setting up an active outline in my 3d engine, a highlight effect for selected 3d characters or scenery in the screen. After working with the stencil buffer and getting some ...
2
votes
1answer
79 views

how to accurately select a sprite on a scene with a click?

I have a scene with some sprite on it (added), the gamer has to select one of them and take the next action. What is the simplest way to select one of the sprites accurately? I am looking for a ...
0
votes
2answers
6k views

How do I trigger OnSelect() via the ISelectHandler in my class?

I'm trying to figure out how I can make a custom UI element identify when it has been selected or deselected. Classes such as Selectable inherit from the ...
0
votes
0answers
176 views

How to scroll Select objects in the hierarchy tab?

So I am creating breakable objects in unity and I have to select around 200 objects in the hierarchy tab so that I can apply some components to each the pieces. My problem is that once I select more ...
1
vote
2answers
531 views

SDL draw dynamic select box

This might seem obvious to many, but I'm stuck and I cannot find any tutorial which helped me, so it would be great to find the answer here. I tried to make a rectangle like you have in RTS games, so ...
5
votes
2answers
938 views

How do I efficiently send RTS unit selections over the network?

I have a multiplayer RTS game with every unit assigned an ID. How can I efficiently send across a network the units selected by a player? For example, Starcraft 2 has upwards of 200 units per player ...
2
votes
1answer
482 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 ...
16
votes
6answers
2k 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 achieved ? I ...
1
vote
1answer
581 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
643 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
154 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: ...
3
votes
1answer
168 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
992 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
475 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
1k 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 ...
21
votes
4answers
12k 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 ...
5
votes
3answers
4k 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
60 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
352 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 ...
6
votes
1answer
695 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
7k 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
350 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
2k 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 ...