So, since the game I’m building involves base building, I was wondering if someone would be so kind as to help me with my layer issues, I’m trying to get them to shift like floors, so if anyone can help I’d appreciate it. Here is my code;
var moveRate = 2.0;
var scrTop = Screen.height;
var scrRight = Screen.width;
var money = 500000;
var unitCap=1;
var currentFloor = 1;
function Update ()
{
var Floor1 = 1 << 10;
var Floor2 = 1 << 11;
var Floor3 = 1 << 12;
var Floor4 = 1 << 13;
var set = 1 << 0;
if(Input.GetMouseButtonDown(0))
{
var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
var layerMask = 1 << 8;
if(Physics.Raycast(ray,900000000,layerMask))
{
Application.Quit();
}
}
if(Input.GetKeyDown("f12"))
{
money+=100000;
}
if(Input.GetKeyDown("f11"))
{
unitCap=100;
}
if(Input.GetKey("up"))
{
transform.Translate(0,Time.deltaTime*40,0);
}
if(Input.GetKey("down"))
{
transform.Translate(0,Time.deltaTime*-40,0);
}
if(Input.GetKey("left"))
{
transform.Translate(Time.deltaTime*-40,0,0);
}
if(Input.GetKey("right"))
{
transform.Translate(Time.deltaTime*40,0,0);
}
if(Input.GetKey("1")¤tFloor!=1)
{
currentFloor=1; // There is no first floor
camera.cullingMask-=Floor2 << 0;
camera.cullingMask-=Floor3 << 0;
camera.cullingMask-=Floor4 << 0;
}
if(Input.GetKey("2")¤tFloor!=2)
{
currentFloor=2;
camera.cullingMask=Floor1 << 1;
camera.cullingMask=Floor2 << 1;
camera.cullingMask=Floor3 << 0;
camera.cullingMask=Floor4 << 0;
}
if(Input.GetKey("3")¤tFloor!=3)
{
camera.cullingMask=Floor1 << 1;
camera.cullingMask=Floor2 << 1;
camera.cullingMask=Floor3 << 1;
camera.cullingMask-=Floor4 << 0;
}
if(Input.GetKey("4")¤tFloor!=4)
{
currentFloor=4;
camera.cullingMask=set;
}
// End of the code bits for screen movement.
}
The problem I seem to suffer is that it is funky, and shows different layers then the ones I need to be shown.
I’m not really sure what you’re trying to do with Camera.CullingMask in that code…
Integer subtraction of masks (as you do on GetKey(“1”)) is unlikely ever to do what you expect – remember, although it’s an integer type it represents a bit mask.
Saying “mask = x; mask = y; mask = z;” is also redundant; each assignment overwrites the prior one.
Assuming the camera should only render items in one particular layer, all you need to do is assign the appropriate mask, once:
Make sure your bit-shifts to set Floor1, Floor2, etc are correct (and get rid of all the extra bit shifts (<< operators) in your mask assignment code) and you should be set.
This will take the existing CullingMask and add Floors 1, 2, and 3, while removing 4. If you want to only have those and clear off existing layers, set the original cullingMask variable to 0 instead of the current Mask.
Check Bitwise operation - Wikipedia for a bit more information on these operations ( | is the symbol for OR, ! is the symbol for NOT, and ^ is XOR).
This is off the top of my head, but the only one I’m not fully sure of is the last, and their is probably a shorter way to figure that one out.
I just tried in C# and it seems to work. I’m sorry I’m not very proficient using Unityscript (javascript for Unity).
Althought is certainly should be included within the language.
However if you meant the !, then the solution is to change it to ~, as I accidentally wrote the incorrect operator.
I assumed that the Floors were just small ints, but I’m kind of curious as to why you bitshift them twice.
If the << 0 and << 1 inside the if statement were meant to be on and off settings remove them and just use the floor variable.
So bitshifting is just a clearer way to represent a layer.
As for GameSnake, It looks like a number of the bitshifting logic is flawed.
Your Floor variables are already properly set when initialized, no need to change them again when you set them. Use Binary operators like I listed above to combine or remove those flags.
Edit:
The reason that Bitshifting is used, is because an object can only be on one layer, but a camera can read any number of layers. This means that you can’t just tell a camera to draw layer 5, but have to say draw 1, 4, 2, 3, and 8. You could use an int array, but that is incredibly bulky and slow. Instead you use flags. flags are a binary type and therefore use binary operators. It allows you to select a multitude of values incredibly fast and cheaply while also allowing another variable to only contain one of those values.
If you could better elaborate what it is you want to achieve exaclty maybe I could help a bit.
Do you want to Only load the levels listed when you press a certain key? Do you want to just swap the loaded levels depending on Key? Do you want it to remember what is currently loaded or discard it? What layers are your floors marked as?
to set the culling mask to a specific layer: camera.cullingMask = mask;
to set the culling mask to include two or more layers: camera.cullingMask = mask1 | mask2 | ...;
You already have the masks (your Floor1, Floor2, … variables). You don’t need to worry about all the binary logic/maths Ntero posted unless you want to understand the theory behind what you’re doing.[/list]
Not working how? What is happening? (Or what isn’t?)
Post your code as it is now – if you’ve simplified it as suggested above, the most likely problem is that your initial masks aren’t right. Here’s an alternative way to get the masks that might be easier to work with:
int Floor1 = (1 << LayerMask.NameToLayer("My First Level"));
...
if (input.GetKey("1")) {
camera.cullingMask = Floor1;
}
Note I haven’t checked that works as expected, but it’s something else to try
