我正在创建一个节拍游戏,到目前为止,我的角色正在奔跑和跳跃。我现在想让我的角色向左或向右冲刺。所以如果玩家快速按下右键,那么角色就会冲刺。我怎样才能做到这一点。这是我到目前为止所做的。
package
{
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
public class Player extends MovieClip
{
//Player run speed setting
var RunSpeed:Number = 8;
//Player key presses
var RightKeyPress:Boolean = false;
var LeftKeyPress:Boolean = false;
var UpKeyPress:Boolean = false;
//Jump variables
var Gravity:Number = 1.5;
var JumpPower:Number = 0;
var CanJump:Boolean = false;
var Jumped:Boolean = false;
public function Player()
{
// constructor code
stage.addEventListener(KeyboardEvent.KEY_DOWN,KeyPressed);
addEventListener(Event.ENTER_FRAME,Update);
stage.addEventListener(KeyboardEvent.KEY_UP,KeyReleased);
}
function KeyPressed(event:KeyboardEvent)
{
//When Key is Down
if (event.keyCode == 39)
{
RightKeyPress = true;
}
if (event.keyCode == 37)
{
LeftKeyPress = true;
}
if (event.keyCode == 38)
{
UpKeyPress = true;
}
}
function Update(event:Event)
{
//Adding gravity to the game world
JumpPower += Gravity;
//if player is more than 300 on the y-axis
if (this.y > 300)
{
//Player stays on the ground and can jump
JumpPower = 0;
CanJump = true;
}
//If on floor
if (CanJump)
{
//If right key is pressed run right
if ((RightKeyPress))
{
x += RunSpeed;
gotoAndStop('Run');
scaleX = 1;
}
else if ((LeftKeyPress))
{
//otherwise if left key is pressed run left
x -= RunSpeed;
gotoAndStop('Run');
scaleX = -1;
}
if ((UpKeyPress))
{
//If up key is pressed then jump
JumpPower = -15;
CanJump = false;
gotoAndStop('Jump');
Jumped = true;
}
//If no key is pressed stay idle
if ((!RightKeyPress && !LeftKeyPress && CanJump))
{
gotoAndStop('Idle');
}
}
else if (CanJump == false)
{
//Other if in air and right key is pressed move right
if ((RightKeyPress))
{
x += RunSpeed;
scaleX = 1;
}
else if ((LeftKeyPress))
{
//Otherwise if left key is pressed then move left
x -= RunSpeed;
scaleX = -1;
}
}
//If already jumped and on floor
if (Jumped == true && CanJump)
{
//Cannot jump again
CanJump = false;
//If on floor and right key is pressed run right
if ((RightKeyPress))
{
gotoAndStop('Run');
scaleX = 1;
}
else if ((LeftKeyPress))
{
//Otherwise if on floor and left key is pressed run left
gotoAndStop('Run');
scaleX = -1;
}
//If no key is pressed stay idle
if ((!RightKeyPress && !LeftKeyPress))
{
gotoAndStop('Idle');
}
}
this.y += JumpPower;
}
function KeyReleased(event:KeyboardEvent)
{
if (event.keyCode == 39)
{
event.keyCode = 0;
RightKeyPress = false;
}
if (event.keyCode == 37)
{
event.keyCode = 0;
LeftKeyPress = false;
}
if (event.keyCode == 38)
{
event.keyCode = 0;
UpKeyPress = false;
Jumped = false;
}
}
}
}