gun and bullet truyện

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If you own, or carry a gun regularly, it's important that you know your gun laws and your rights. 44 states have constitutional provision protecting the right to keep and bear arm. However many state laws are different by state and you also need to consider federal gun laws as well. This infographic reviews those laws. Kei Kurono, a selfish and insecure boy, and Masaru Kato, his childhood friend are run over by a subway train for not being able to leave the tracks after saving the life of a drunk homeless man who fell on the rails. Freie Presse Anzeige Er Sucht Sie. Bullet journal của yếnbởi Oanh Book11533BulletJournal là một tên riêng, nó là một phương pháp quản lý bản thân hằng ngày bằng cách ghi chép truyền thống có sử dụng những kí hiệu đặc trưng và vô cùng dễ dàng t...journalquanlythoigiantay+3 tag khác This work could have adult content. If you proceed you have agreed that you are willing to see such content. If you accept cookies from our site and you choose "Proceed", you will not be asked again during this session that is, until you close your browser. If you log in you can store your preference and never be asked again. Tags Summary The job was supposed to be easy, until it wasn´t. Crossed paths, unspoken feelings, a night that will change you forever. Language English Words 2,056 Chapters 2/? Kudos 30 Bookmarks 3 Hits 1061 Guns and Bullets 2 This project is a set of generic gun and bullet components to be futher expanded upon for specific projects. They are designed around my usual use case of fast moving bullets fired from vehicles. The goal of this project was to create a sort of "canonical" version of bullet and gun code that I so frequently write and rewrite. Rather than constantly pulling and gutting code from old projects, it'd be nice to have a single package that I can just import. Features Guns with optionally limited ammo Bullets can be fired with random deviation Simple handling for effects such as muzzle flashes and impacts Guns can have multiple barrels that are fired simultaneously or sequentially "Physical" bullets with travel time Gimballing to allow for auto-aim style mechanisms Option for thick bullets to test bullets with volume Architecture allows for accurate prediction of impact point Bullets can inherit motion automatically from a parent Rigidbody Optional ability for bullets to ignore specific objects to prevent shooting yourself Optional ability to self destruct on timeout Bullets have length to them, for more visually accurate hit detection This project was built in Unity Download You can either clone the repository or download the asset package located in the root. Guns The guns themselves are pretty straightforward. They fire automatically at a set rate of fire as long as IsFiring is set to true. If only a single shot is desired, the FireSingleShot function can be used. Using GetPredictedImpactPoint, the exact path of a bullet can be predicted. See Prediction for more information. The gun uses a Fire Point system to determine where bullets and muzzle flashes are to be placed. This allows for weapons with multiple fire points. If no fire points are assigned FirePoints array is left empty, then the gun will fire bullets from whatever Transform the Gun script is attached to. Fire points can be fired simultaneously, or sequentially. Ammo can optionally be used to limit the number of shots the gun can fire. To reload a gun to its maximum ammo count, call ReloadAmmo. Ignoring Collisions Bullets have several options for blacklisting Rigidbodies and Colliders from their own hit detection. The most common use for this, is to prevent a bullet from shooting the thing it fired it. This information cannot be filled out automatically, so the Gun will pass that information to the Bullet when it is fired. By default, a gun will try to get a reference to a parent Rigidbody. If the firing object has a Rigidbody, this is enough, and the preferred method. If any additional rigid bodies need to be ignored, the AddIgnoredRigidbody function can be used. If the firing object does not have a Rigidbody, then the AddIgnoredCollider function can be used to add a list of colliders for the bullet to ignore. This must be called manually, typically by whatever object is firing the gun. The list is persistent, so it only needs to be set once. Limitations As with the bullets, I feel this component is generic enough to cover 90% of the use cases I'm interested in with little to no modification. However, there is one caveat to keep in mind Fire rate is handled by checking time since the last shot, once every frame. This means that a gun cannot fire faster than its update loop. When firing from FixedUpdate, this translates to whatever your Fixed Timestep is set to in project properties. By default, this is For extremely fast firing guns, the code must be extended, the rate of updates increased. The problem can also be somewhat worked around by firing from multiple fire points at the same time. If you start running into this limitation, you should also consider if you really need that many bullets flying in the air, as ultra-high rates of fire coming from enough guns can saturate a game with enough raycasts to slow it down. Recoiling Barrels Barrels can optionally be configured to recoil upon firing. To enable this feature, add the Transform of the barrel object to the RecoilingBarrels list. To work correctly with multiple fire points, make sure to assign this list in the same order as the FirePoints list. if you have a left and right fire point in the FirePoints list, add the left and right barrels to RecoilingBarrels in that same order. Upon firing, barrels will translate backwards in the local Z axis. There are no checks to make sure the barrel gets fully reset after each shot. If the fire rate fast enough that the barrel doesn't have enough time to reset, it'll be continually pushed backwards! Bullets Below is miscellaneous technical documentation. The Functions The most important functions describing how the bullets work are these three CalculateBulletMotion RunRayHitDetection RunThickHitDetection These three functions get used in the UpdateBullet function to both move it and detect if the bullet has hit an object. Since these functions do not rely on any state information held in the bullet itself, they can be called with any arbitrary starting positions to run the bullet for one frame. In normal use, this just means it gets called in the FixedUpdate loop, but they can also be used to simulate a hypothetical bullet, its flight path, and a target it may hit. CalculateBulletMotion Straightforward function for linear bullets with optional gravity modifier to take gravity into account. There is no calculation for drag or anything more complex than that. Anything more is too project-specific, so it's up to you to specify if need be. I find that this type of motion is good enough for the vast majority of cases. CalculateRayHitDetection One of the hit detection methods. This uses a very simple Raycast forwards one frame to see if the bullet will hit something. The raycasting allows for bullets to never tunnel through an object due to high speeds. CalculateThickHitDetection The alternative hit detection method. Instead of a raycast, this uses a SphereCast for hit detection. This method is more expensive, but can be more robust and useful for things such as visibily large bullets or a form of making hit detection more forgiving. For both optimization and game-design purposes, thick hit detection only checks layers specified in the bullet's TargetMask property. See the ThickBullets section for more details. Damage This project does not include any kind of damage system. This is implementation specific, so you will need to add your own code for handling damage. There are two convenient places to place handling damage code marked with //TODO comments. Explosions Using the ExplodeOnImpact and ExplodeOnTimeout properties, bullets can be set to explode. Functionality for this is very limited, since the exact needs of an explosion system vary depending on the project. As with damage, it is expected for a user to fill in their own code for handling damage. Explosions and impacts are configured to use different effects, which can be specified using the ExplodeFXPrefab and ImpactFXPrefab properties. Moving in FixedUpdate vs. Update The rule of thumb for this is if you are using a physics based project, you will need to set MoveInFixed to true. If the bullets are updating in a different update loop from the rest of the game, they will move in a very stuttery fashion. Nearly all my projects are physics-based, so this defaults to true. Limitations The code in this project is very simple. While it is generic enough to cover what I feel is 90% of use cases involving fast bullets, there are some limitations to keep in mind. This solution is designed around bullets that will be traveling at fast speeds relative to their targets. If the targets travel at similar speeds, or faster, than the bullets, then it is possible for the hit detection to be unreliable, particularly when using the ray versions of hit detection. Neither the bullets, nor the impact effects, are pooled. Pooling is too project specific to include here, so keep in mind that you may want to write a pooling system for bullets, or rolling them into one you're already using, if bullet spawning/destruction becomes a bottleneck. Special Bullet Features This project contains many special little features that I've come to find useful in the types of games I make. Gimballing An optional feature that I often find myself repeatedly implementing is gimballing guns. The idea behind this is to allow the gun to hit a precise point without necessarily aiming the gun directly at that point. This is very useful for things such as auto-aim, AI controlled weapons, and ensuring that guns converge on a crosshair. Set UseGimballedAiming to true to enable gimballed aiming. GimbalTarget is the position the gun will try to fire bullets at when gimballing is enabled. GimbalRange is the maximum degrees off boresight that the gun can gimbal bullets towards. Set GimbalOnlyWhenInRange iif you want the gun to aim at GimbalTarget only when it is within the GimbalRange. Thick Bullets Another optional feature of bullets is to use "thick bullets." Rather than point raycasting, they instead use spherecasts to simulate bullets with volume. This is more expensive than the normal point raycasting, and performs the SphereCasts in addition to the point raycasts. Aside from being used to simulate large bullets such as a cannon ball, it can be also be used to exaggerate the size of hitboxes to make hitting small and fast targets easier for the player. Thick hit detection is only done against objects on the layers defined by ThickHitLayers! Set IsThick to enable thick bullet hit detection using the diameter set by BulletDiameter. Setting the Layers ThickHitLayers are the layers that thick hit detection is used for. This is separate from normal hit detection for game design and optimization reasons. When thick bullets use the same hit detection as everything else, they will get caught on terrain or the environment in sometimes undesirable ways. Thick bullets using separate hit detection allows them to do the SphereCasts only for relevant objects hitboxes. Keep in mind that the SphereCasts are done in addition to normal bullet hit detection. If you'd like all hit detection to be done thick, then make sure to set the RayHitLayers mask to Nothing. Prediction A normal bullet uses the CalculateBulletMotion and RunHitDetection functions to step through its motion and hit detection in a FixedUpdate function. Since these functions do not rely on the current state of the bullet, they can be used by other classes to simulate a bullet and have it step through all of its normal code, using its properties. In this project, the Gun class has a GetPredictedImpactPont function which does exactly this. This simulates a shot from the gun with the guns own parameters, and the bullet prefab that it uses. Since the GetPredictedImpactPoint function is using exactly the same hit detection and motion functions that the bullet itself uses, any additions to bullet motion such as complex drag models or hit detection will automatically be used. The smaller the timestep passed into the GetPredictedImpactPoint function, the more accurate the prediction. To get the most accurate prediction, use the same timestep as the Physics timestep set in Project Settings. Be aware that this can become an expensive function, especially for long lasting bullets at low timesteps, since it is essentially running the entire bullet's lifetime in the course of one frame. var simTime = 0f; var maxSimTime = while simTime < maxSimTime && !willHitSomething { simPosition, simVelocity = simPosition, simVelocity, timeStep; willHitSomething, hitInfo = simPosition, simVelocity, timeStep; if willHitSomething { willHitSomething = true; hitPosition = } simTime += timeStep; } Automatically Inherit Velocity Set AutoInheritVelocity to true to enable fired bullets from a gun inheriting the velocity of their gun's parent. Velocity inheritance is accomplished by getting the Rigidbody in its parent. Inheriting velocity is realistic, but can be undesirable in some cases, so this is left optional. If you have a specific value you'd like to use for inherited velocity, or you are not using a Rigidbody, the inherited velocity can be manually overridden by setting the public InheritedVelocity property. Ignoring Collision with Objects It's often that you will want a projectile to not collider with the object that fired it. Before a Bullet is fired, the functions AddIgnoredRigidbody and AddIgnoredCollider can be used to set exceptions for the bullet's hit detection. When possible, prefer ignoring a Rigidbody since it's more robust and slightly more performant than ignoring specific Colliders. See Ignoring Collisions for more details on usage. IgnoreOwnRigidbody The Gun class contains convenience functions to automatically ignore its own Rigidbody when firing bullets. If you'd like to shoot yourself, set this property to false. Bullet Length Since the origin of the bullet GameObject is used for hit detection, it can be useful to offset the hit detection forwards by the length of the bullet, especially for longer bullets. This can prevent the visuals of a bullet from intersecting an object before it counts as a collision. This can also make collision detection feel more correct from the player's perspective as a perceived "late" hit can feel unresponsive. The above image shows an example of what this prevents. The two bullets furthest from the camera have their BulletLength value set to the length of their bullets, while the three nearest to the camera use the default value. To use this correctly Align the visuals of your bullet such that the "tail" of the bullet is at the origin, and the "head" of the bullet is somewhere in the Z+ direction. Enable Show Debug Visuals to show the bullet length crosses. Adjust the BulletLength property so that the front cross aligns with the front tip of your bullet. Changelog September 22 2021 Bullets can now have their hit detection offset by their length July 30 2021 Fixed bug where explosion effect wasn't being called on explosion Mar 7 2021 Added optional ability for barrels to recoil from guns Changed the language around such that "fire points" are where bullets come from, "barrels" are visual things that recoil Firing no longer uses queues and instead just cycles indices in order to take up neglibly less resources Fixed bug where setting the gun to use the normal Update as opposed to FixedUpdate would result in uncontrolled firing Added new test scene demonstrating the recoiling barrels Jan 31 2021 Released Gun and Bullet 1 O Gun and Bullet é um jogo no velho estilo arco e flecha, Porém, como não usamos este tipo de arma em uma guerra hoje em dia, o arco e a flecha foram substituídos por armas de fogo e balas. É possível utilizar vários equipamentos, como pistolas, espingardas, fuzis, lançadores de granada, lança-chamas, e outros. Em breve! 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gun and bullet truyện