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 程式師世界 >> 編程語言 >> 更多編程語言 >> Delphi >> Delphi與DirectX之DelphiX(15)

Delphi與DirectX之DelphiX(15)

編輯:Delphi

此類函數有:
TPictureCollectionItem.DrawWaveX();
TPictureCollectionItem.DrawWaveXAdd();
TPictureCollectionItem.DrawWaveXAlpha();
TPictureCollectionItem.DrawWaveXSub();
TPictureCollectionItem.DrawWaveY();
TPictureCollectionItem.DrawWaveYAdd();
TPictureCollectionItem.DrawWaveYAlpha();
TPictureCollectionItem.DrawWaveYSub();

本例僅使用了 DrawWaveX、DrawWaveY, 效果圖:

代碼文件:

unit Unit1;
interface
uses
 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 Dialogs, DXDraws, StdCtrls, DXClass;
type
 TForm1 = class(TForm)
  DXDraw1: TDXDraw;
  DXImageList1: TDXImageList;
  DXTimer1: TDXTimer;
  Edit1: TEdit;
  CheckBox1: TCheckBox;
  procedure FormCreate(Sender: TObject);
  procedure DXTimer1Timer(Sender: TObject; LagCount: Integer);
  procedure Edit1Change(Sender: TObject);
  procedure CheckBox1Click(Sender: TObject);
 end;
var
 Form1: TForm1;
implementation
{$R *.dfm}
const
 arr: array[0..31] of Smallint =
  (-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,7,6,5,4,3,2,-1,0,-1,-2,-3,-4,-5,-6,-7);
var
 PicItem: TPictureCollectionItem;
 amp,len: Integer;
procedure TForm1.Edit1Change(Sender: TObject);
begin
 len := StrToIntDef(Edit1.Text, 0);
end;
procedure TForm1.FormCreate(Sender: TObject);
const
 ImgPath1 = 'C:\Temp\DelphiX.bmp';
begin
 DXImageList1.DXDraw := DXDraw1;
 PicItem := TPictureCollectionItem(DXImageList1.Items.Add);
 PicItem.Picture.LoadFromFile(ImgPath1);
 DXDraw1.Align := alClient;
 DXTimer1.Interval := 30;
 Edit1.Text := '60';
 Edit1Change(nil);
 CheckBox1.Checked := True;
 CheckBox1.Caption := 'DrawWaveX';
end;
procedure TForm1.CheckBox1Click(Sender: TObject);
const
 bs: array[Boolean] of string = ('DrawWaveY', 'DrawWaveX');
begin
 CheckBox1.Caption := bs[CheckBox1.Checked];
end;
procedure TForm1.DXTimer1Timer(Sender: TObject; LagCount: Integer);
begin
 DXDraw1.Surface.Fill(0);
 if CheckBox1.Checked then
  PicItem.DrawWaveX(DXDraw1.Surface,
           (DXDraw1.Width - PicItem.Width) div 2, (DXDraw1.Height - PicItem.Height) div 2,
            PicItem.Width, PicItem.Height,
            0,
            arr[amp and 31],
            len,
            0)
  else
   PicItem.DrawWaveY(DXDraw1.Surface,
           (DXDraw1.Width - PicItem.Width) div 2, (DXDraw1.Height - PicItem.Height) div 2,
            PicItem.Width, PicItem.Height,
            0,
           arr[amp and 31],
           len,
           0);
 DXDraw1.Flip;
 Inc(amp);
end;
end.

窗體文件:

object Form1: TForm1
 Left = 0
 Top = 0
 Caption = 'Form1'
 ClientHeight = 154
 ClientWidth = 259
 Color = clBtnFace
 Font.Charset = DEFAULT_CHARSET
 Font.Color = clWindowText
 Font.Height = -11
 Font.Name = 'Tahoma'
 Font.Style = []
 OldCreateOrder = False
 OnCreate = FormCreate
 PixelsPerInch = 96
 TextHeight = 13
 object DXDraw1: TDXDraw
  Left = 8
  Top = 8
  Width = 185
  Height = 121
  AutoInitialize = True
  AutoSize = True
  Color = clBlack
  Display.FixedBitCount = False
  Display.FixedRatio = True
  Display.FixedSize = True
  Options = [doAllowReboot, doWaitVBlank, doCenter, do3D, doDirectX7Mode, doHardware, doSelectDriver]
  SurfaceHeight = 121
  SurfaceWidth = 185
  TabOrder = 0
  Traces = <>
 end
 object Edit1: TEdit
  Left = 212
  Top = 125
  Width = 38
  Height = 21
  TabOrder = 1
  Text = 'Edit1'
  OnChange = Edit1Change
 end
 object CheckBox1: TCheckBox
  Left = 120
  Top = 129
  Width = 86
  Height = 17
  Caption = 'CheckBox1'
  TabOrder = 2
  OnClick = CheckBox1Click
 end
 object DXImageList1: TDXImageList
  Items.ColorTable = {
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000}
  Items = <>
  Left = 224
  Top = 8
 end
 object DXTimer1: TDXTimer
  ActiveOnly = True
  Enabled = True
  Interval = 1000
  OnTimer = DXTimer1Timer
  Left = 224
  Top = 48
 end
end

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