在Unity中接入Xbox360手柄

提要

本文主要介紹了怎樣在Unity中接入Xbox360的手柄。

當我們調Input.GetAxis("Horizontal")，我們調了什么

Unity中全部關於輸入的設置都在Edit -> Project Setting -> Input里面，點開之后，Inspector面板中就會顯示當前的輸入設置。

幾個重要選項的含義有:

Gravity	How fast will the input recenter. Only used when the Type is key / mouse button.
Dead	Any positive or negative values that are less than this number will register as zero. Useful for joysticks.
Sensitivity	For keyboard input, a larger value will result in faster response time. A lower value will be more smooth. For Mouse delta the value will scale the actual mouse delta.
Snap	If enabled, the axis value will be immediately reset to zero after it receives opposite inputs. Only used when the Type is key / mouse button.
Invert	If enabled, the positive buttons will send negative values to the axis, and vice versa.
Type	Use Key / Mouse Button for any kind of buttons, Mouse Movement for mouse delta and scrollwheels, Joystick Axis for analog joystick axes and Window Movement for when the user shakes the window.

上圖中，定義了鍵盤上的a鍵，d鍵。小鍵盤上的左和右控制了 "Horizontal" 的輸入。並且實際情況中直接插上360的手柄，通過左邊的搖桿， Input.GetAxis("Horizontal")也能夠獲得輸入值，原因是后面還定義了一個 "Horizontal" 的輸入。

 

這里定義了一個 Joystick Axis類型的輸入，輸入的軸是X。 從全部手柄獲取輸入。

由於有了這個，Input.GetAxis("Horizontal")就能夠直接獲取手柄的值了。

接下來看怎么擴展到手柄的按鍵和其它的搖桿。

擴展到手柄的按鍵和其它的搖桿

首先看一下手柄按鍵 的分布圖。

有了這個就能夠自己定義手柄的輸入了。

比方要 通過 Input.GetButtonDown("Action"); 來判定是否攻擊，關聯的是手柄上的A鍵， 我們僅僅須要例如以下圖設置

再比方右邊的搖桿，橫向是這樣

縱向是這種

取值的話是這樣

Input.GetAxis("RightHorizontal"))
Input.GetAxis("RightVertical"))

其它的按鍵或者搖桿用相同的方式設置就能夠了。

參考

Input Manager - http://docs.unity3d.com/Manual/class-InputManager.html

Xbox 360 Joystick Controller +  - Unity http://bobstudios-en.blogspot.com/2012/09/xbox-360-joystick-controller-unity.html

附錄：sony ps4 joystick map

Buttons
Square = joystick button 0
X = joystick button 1
Circle = joystick button 2
Triangle= joystick button 3
L1 = joystick button 4
R1 = joystick button 5
L2 = joystick button 6
R2 = joystick button 7
Share = joystick button 8
Options = joystick button 9
L3 = joystick button 10
R3 = joystick button 11
PS = joystick button 12
PadPress= joystick button 13

Axes:
LeftStickX = X-Axis
LeftStickY = Y-Axis (Inverted?)
RightStickX = 3rd Axis
RightStickY = 4th Axis (Inverted?

)
L2 = 5th Axis (-1.0f to 1.0f range, unpressed is -1.0f)
R2 = 6th Axis (-1.0f to 1.0f range, unpressed is -1.0f)
DPadX = 7th Axis
DPadY = 8th Axis (Inverted?)