在屏幕上移动一个形状并使其消失

时间:2015-08-31 02:11:14

标签: smallbasic

我到目前为止这个程序有效,但是当它进入for循环时会冻结。我已经用另一个程序完成了这样的事情,但是它的形状并不喜欢它。

GraphicsWindow.Height = 400
GraphicsWindow.Width = 600
GraphicsWindow.Title = "FairyTail"
GraphicsWindow.CanResize = "False"
animation()
Controls.ButtonClicked = action

Sub animation
GraphicsWindow.BrushColor = "Black"
Firstmove = Controls.AddButton("fireball", 300, 100)
Controls.Move(Firstmove, 0, 200)

endsub
 Sub action
If Controls.GetButtonCaption(Firstmove) = "fireball" Then
GraphicsWindow.BrushColor = "Red"
fireball = Shapes.AddEllipse(20, 20)
Shapes.Move(fireball, 135, 115)

For i = 135 To 465
if i <> 465 then 
  Shapes.animate(fireball, i, 115, 1000)
  i = i + 1
  Program.Delay(100)
Else 
    Shapes.Remove(fireball)
    endif 
   endfor 
endif

endsub
我试图做的是将火球移过屏幕然后将其移除。但我不知道如何在它动画后删除它。

1 个答案:

答案 0 :(得分:1)

此程序存在一些问题。第一个是:

For i = 135 To 465
if i <> 465 then 
Shapes.animate(fireball, i, 115, 1000)
i = i + 1
Program.Delay(100)
Else 
Shapes.Remove(fireball)
endif 
endfor 

如果你已经在&#34; i&#34;之后关闭了For语句。 = 465,你真的不需要If语句。

第二个问题(以及它未运行的原因)是:

Shapes.animate(fireball, i, 115, 1000)

此命令的作用是,它是否在设定的时间内将形状移动到设定的x和y坐标。因此,这意味着它将在1000 MS之后将形状从其葡萄干位置移动到i,115。

你真正需要的是Shapes.Move。

此外,通常一个好主意是让所有循环在子程序之外执行。这是因为如果你单击按钮两次,它将尝试调用子程序,而子程序仍在运行(因为它在其中循环)这将导致问题。以下是我制作本计划的方式:

 GraphicsWindow.Height = 400
 GraphicsWindow.Width = 600
 GraphicsWindow.Title = "FairyTail"
 GraphicsWindow.CanResize = "False"
 animation()
 Controls.ButtonClicked = action

 While 1 = 1 
 Program.Delay(10)
 If CanMoveFireball Then
 i = i + 1 '<--- Increase the position and move it to that position
 Shapes.Move(fireball,i,115)
 EndIf

 If i > 465 Then '<--- If the fireball is past 465 then remove it and say its OK to add another
 Shapes.Remove(fireball)
 CanMoveFireball = "False"
 EndIf
 EndWhile

 Sub animation
 GraphicsWindow.BrushColor = "Black"
 Firstmove = Controls.AddButton("fireball", 300, 100)
 Controls.Move(Firstmove, 0, 200)
 endsub

 Sub action
 If Controls.LastClickedButton = Firstmove Then
 If CanMoveFireball <> "True" Then '<--- Make sure you don't add another      fireball while the first one is moving
 GraphicsWindow.BrushColor = "Red"
 fireball = Shapes.AddEllipse(20, 20)
 Shapes.Move(fireball, 135, 115)
 i = 135
 CanMoveFireball = "True" '<--- Tell it it's OK to move Fireball
 EndIf

Endif
Endsub

我希望这会有所帮助!!

- Zock