I am trying to learn game development through different ways and sources and recently I have created a project in unity with example ThirdPersonController.
While looking through the code I came across one thing which I am finding difficult to wrap my mind around. It is "StringToHash". What is the purpose of this? Here is an example of variable with specified values set:
private void AssignAnimationIDs()
{
_animIDSpeed = Animator.StringToHash("Speed");
_animIDGrounded = Animator.StringToHash("Grounded");
_animIDJump = Animator.StringToHash("Jump");
_animIDFreeFall = Animator.StringToHash("FreeFall");
_animIDMotionSpeed = Animator.StringToHash("MotionSpeed");
}
and here is an example when this is used when being called:
if (_hasAnimator)
{
_animator.SetFloat(_animIDSpeed, _animationBlend);
_animator.SetFloat(_animIDMotionSpeed, inputMagnitude);
}
Welcome to Stack overflow.
Similar question already has been asked HERE . Unity Docs .
In your code below you changing values (parameters) of your animator. To find which values it should change it must compare the name of the value you gave in .SetFloat to the ones it has (in "parameters" section on "animator" tab).
You could do
.SetFloat("speed", _animationBlend);
But to get that milliseconds of time advantage (optimization) your "speed" is converted to integers first (like in your code above) and then you use it.
Related
I'm developing an application for an nRF52 SoC to access some external devices, kind of detectors in this case, so I have defined a custom format (and its corresponding yaml file) for my device access description node. It is kind of:
n: detectors {
compatible = "foo-detectors";
// Definition of first channel
det0: det_0 {
irq-pins = <13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
label = "Bar detector channel 1";
};
// Definition of second channel
det1: det_1 {
irq-pins = <17 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
label = "Bar detector channel 2";
};
};
Suppose I have a structure definition for holding data about the pins to which those devices are physically connected, say:
struct foo_detector_desc {
int irqpin;
int irqpin_flags;
}
Using Zephyr macros, I can use from my code the individual values for those nodes. For instance, DT_PROP_BY_IDX(DT_NODELABEL(det0), irq_pins, 0) expands to 13, DT_PROP_BY_IDX(DT_NODELABEL(det0), irq_pins, 1) expands to the value of OR'ed flags GPIO_PULL_UP | GPIO_ACTIVE_LOW.
But I don't want to create a ten-page code full of conditionals in the form DT_NODE_EXISTS(DT_ALIAS(det#)), but something more compact, flexible and maintainable.
I came across Zephyr macro DT_FOREACH_CHILD that is intended for being used in that scenario with which I can create a list with the labels, as showcased in the example embedded in the documentation:
#define LABEL_AND_COMMA(node_id) DT_LABEL(node_id),
const char *child_labels[] = {
DT_FOREACH_CHILD(DT_NODELABEL(n), LABEL_AND_COMMA)
};
Trying to use that for filling a static structures array, I tried following code but, yet it expands to two elements in the array, the structure fields are not initialised with desired values.
#define PIN_INFO_AND_COMMA(node_id) \
{ \
.pin=DT_PROP_BY_IDX(node_id, irq_pins, 0),\
.flags=DT_PROP_BY_IDX(node_id, irq_pins, 1),\
},
const struct detector_data _det_data[] = {
DT_FOREACH_CHILD(DT_NODELABEL(n), PIN_INFO_AND_COMMA)
};
I'm using Visual Studio Code with the nRF Connect plugin.
Is there a way to generate/see how those macros expand when compiled?
What is the correct way for initialising the structure fields (pins, flags)?
BR
It is possible to expand the macros one level at a time in VS Code. It is needed to click over the macro, then select it by double-clicking on it, and a bulb light will, eventually, show up. The option Insert Macro will replace the macro with its expansion.
Regarding using the DTS in code, the code I wrote in my previous post is OK, but I think I found a bug in the debugger. If I don't include any code using the value of _det_data, the debugger doesn't say the constant was optimised-out and displays wrong values when inspecting its content. That made me waste a lot of time.
For anyone interested on using DTS files for nRF devices in Zephyr, I posted all details in a thread in Nordic's developers forum (here).
BR
I want to use the deltatrigger in apache flink (flink 1.3) but I have some trouble with this code :
.trigger(DeltaTrigger.of(100, new DeltaFunction[uniqStruct] {
override def getDelta(oldFp: uniqStruct, newFp: uniqStruct): Double = newFp.time - oldFp.time
}, TypeInformation[uniqStruct]))
And I have this error:
error: object org.apache.flink.api.common.typeinfo.TypeInformation is not a value [ERROR] }, TypeInformation[uniqStruct]))
I don't understand why DeltaTrigger need TypeSerializer[T]
and I don't know what to do to remove this error.
Thanks a lot everyone.
I would read into this a bit https://ci.apache.org/projects/flink/flink-docs-release-1.2/dev/types_serialization.html sounds like you can create a serializer using typeInfo.createSerializer(config) on your type info. Note what you're passing in currently is a type itself and NOT the type info which is why you're getting the error you are.
You would need to do something more like
val uniqStructTypeInfo: TypeInformation[uniqStruct] = createTypeInformation[uniqStruct]
val uniqStrictTypeSerializer = typeInfo.createSerializer(config)
To quote the page above regarding the config param you need to pass to create serializer
The config parameter is of type ExecutionConfig and holds the
information about the program’s registered custom serializers. Where
ever possibly, try to pass the programs proper ExecutionConfig. You
can usually obtain it from DataStream or DataSet via calling
getExecutionConfig(). Inside functions (like MapFunction), you can get
it by making the function a Rich Function and calling
getRuntimeContext().getExecutionConfig().
DeltaTrigger needs a TypeSerializer because it uses Flink's managed state mechanism to store each element for later comparison with the next one (it just keeps one element, the last one, which is updated as new elements arrive).
You will find an example (in Java) here.
But if all you need is a window that triggers every 100msec, then it'll be easier to just use a TimeWindow, such as
input
.keyBy(<key selector>)
.timeWindow(Time.milliseconds(100)))
.apply(<window function>)
Updated:
To have hour-long windows that trigger every 100msec, you could use sliding windows. However, you would have 10 * 60 * 60 windows, and every event would be placed into each of these 36000 windows. So that's not a great idea.
If you use a GlobalWindow with a DeltaTrigger, then the window will be triggered only when events are more than 100msec apart, which isn't what you've said you want.
I suggest you look at ProcessFunction. It should be straightforward to get what you want that way.
I'm having trouble displaying the label of my components properly in tStatCatcher. I have renamed my components label but upon logging of tStatCatcher's origin field, the name is still the previous one.
E.g. Renamed my tDatabaseInput from MY_QUERY from tDatabaseInput1
tStatCatcher is still displaying tDatabaseInput1. It should be the new name MY_QUERY.
Anyone can provide assistance.
Thanks in advance
You can't delete the technical name of the component, it will always appear in logs as tComponent_1, to ensure unicity.
What you can do is adding MY_QUERY to the technical name, using __UNIQUE_NAME__
It will still not appear in your log, but you'll be able to see that MY_QUERY is linked to tComponent_1.
For example :
[]
I'm not sure if this is the best answer. But I'm sticking to this implementation for now unless someone shared a much better way.
I created a routine java class with a method that maps the from the tStatCatcher's row.origin to my hardcoded list of label names:
public static String mapToLabel(String uniqueName) {
switch(uniqueName) {
case "tDatabaseInput1":
return "MY_QUERY";
default:
return "--not mapped";
}
}
Then I called this method on my tMap's expression editor.
I've been working on this for sometime now, and I keep running into a wall. I think I'm close, but I figured someone out here in the land of SO might have some deeper insight if not a better way of doing what I'm trying to do.
Basically lets look at this scenario. I have a logo w/ some text that can be set from a few different places. If we look at the setup here is what it looks like.
Hiearchy:
Homepage [has designPath]
- Child Microsite Page [has designPath]
- Logo Component
Logic Flow (in logo component):
if properties.get("logoText") {
use this
} else if currentStyle.get("logoTextFromStyle") {
use this
} else if parentStyle.get("logoTextFromGlobal") {
use this
} else {
be blank
}
My query is with how to get the "parentStyle" of this page. Looking at the docs here: http://dev.day.com/docs/en/cq/5-5/javadoc/com/day/cq/wcm/api/designer/Style.html
I've been able to come up with the fact that I can get a Style object from the "designer" object made available via defineObjects. This is defined with the other utility objects like "pageManager, resourceUtil, resource, currentPage, etc".
With that being said this doesn't seem to work.
//assuming we have getting homePage earlier and it is a valid cq Page resource
Resource homePageResource.slingRequest.getResourceResolver().getResource(homePage.getPath());
Style homePageStyle = designer.getStyle(homePageResource);
at this point homePageStyle is null. To do some more testing I i tried passing currentPage.getPath() instead of homePage.getPath(). I assumed this would give me the currentPage resource and would in end yield the currentStyle object. This also resulted in a null Style object. From this I think I can safely conclude I'm passing the incorrect resource type.
I attempted to load the the cq:designPath into the resource hoping to get a Designer resourceType but to no avail.
I am curious if anyone has run into this problem before. I apologize if I've gone into too much detail, but I wanted to lay out the "why" to my question as well, just in case there was a better way overall of accomplishing this.
I've figured out how to return the style. Here is the rundown of what I did.
//get your page object
Page targetPage = pageManager.getPage("/path/to/target");
//get the Design object of the target page
Design homePageDesign = designer.getDesign(homePage);
//extract the style from the design using the design path
Style homePageStyle = homePageDesign.getStyle(homePageDesign.getPath());
it's very interesting the definition of "getStyle" is a little different from the designer.getStyle vs a Design.getStyle. designer.getStyle asks for a resource whereas Design.getStyle will take the path to a Design "cell" and return the appropriate Style.
I did some testing and it looks like it does work with inherited Styles/Designs. So if my cq:designPath is set at level 1 and I look up a page on at level 2 they will return the Design/Style at the cq:designPath set at level 1.
I hope this helps someone else down the way.
I tried this approach but was not getting the Styles in the Style object.
When we do this:
Design homePageDesign = designer.getDesign(homePage);
In this Design object we get the path till the project node i.e etc/design/myproject
After this if we try to extract the Style from the design path we do not get it.
However I implemented it in a different way.
In the design object, we also get the complete JSON of designs for(etc/design/myproject).
Get the sling:resourceType of the target page and get the value after last index of "/".
Check if this JSON contains the last value. If it contains, you can get your styles, i.e. image, etc.
I'm working on a sample app for Facebook, using Flash Builder and Flex.
Now, I've got everything up and running - but there's one problem, specifically with the work history part.
When I try to display the user's work history..here's the code for logging in:
protected function login():void
{
FacebookDesktop.login(loginHandler, ["user_birthday", "user_work_history"]);
}
Here, loginHandler's a callback function, that then goes ahead and displays data about the user:
protected function loginHandler(success:Object,fail:Object):void
{
if (success){
currentState = "LoggedIn";
fname.text = success.user.name;
userImg.source=FacebookDesktop.getImageUrl(success.uid,"small");
birthdayLbl.text=success.user.birthday;
workLbl.text=success.user.work;
}
}
Now, the problem occurs with success.user.work - it ends up printing the following:
[object,Object],[object,Object],[object,Object],[object,Object]
Obviously, I'm doing something wrong..but I can't figure out what exactly it is. Would be grateful for some pointers!
Thanks!
Rudi.
The object contained in success.user.work is most likely an array of objects, each item representing a work period, so you'll have to treat it as such. Either use a list and a custom renderer for each item, or create a string by iterating over the array, and appending the fields that you're interested in.
To see what the individual objects contain, either use a breakpoint during debug and inspect them, or check to see if they're documented in the facebook development documentation.