Learn a little flash (43) Flash 3D Rotation every day

I haven't come here to write an article for a long time. The csdn server has finally been optimized. I can continue to post my flash article this time.

I read a book and successfully debugged the program. Now I can run it to create a three-dimensional effect. Good Program

 

Cude.

Package Tom {

Import flash. display. Sprite;

Import flash. Events .*;

Import flash. display. graphics;

Public class cude extends sprite {

Private var points: array = new array ();

Private var vpx: Number = stage. stagewidth/2;

Private var vpy: Number = stage. stageheight/2;

Private var numpoints: Int = 8;

Private var triangles: array;

Public Function cude (){

Points [0] = new point3d (-100,-100,-100 );

Points [1] = new point3d (100,-100,-100 );

Points [2] = new point3d (100,100,-100 );

Points [3] = new point3d (-100,100,-100 );

Points [4] = new point3d (-100,-100,100 );

Points [5] = new point3d (100,-100,100 );

Points [6] = new point3d (100,100,100 );

Points [7] = new point3d (-100,100,100 );

For (var I: Int = 0; I <numpoints; I ++ ){

Points [I]. setvanishingpoint (vpx, vpy );

Points [I]. setcenter (0, 0,200 );}

Triangles = new array ();

Triangles [0] = New Triangle (points [0], points [1], points [2], 0x6666cc );

Triangles [1] = New Triangle (points [0], points [2], points [3], 0x6666cc); // top

Triangles [2] = New Triangle (points [0], points [5], points [1], 0x66cc66 );

Triangles [3] = New Triangle (points [0], points [4], points [5], 0x66cc66); // back

Triangles [4] = New Triangle (points [4], points [6], points [5], 0xcc6666 );

Triangles [5] = New Triangle (points [4], points [7], points [6], 0xcc6666); // bottom

Triangles [6] = New Triangle (points [3], points [2], points [6], 0xcc66cc );

Triangles [7] = New Triangle (points [3], points [6], points [7], 0xcc66cc); // right

Triangles [8] = New Triangle (points [1], points [5], points [6], 0x66cccc );

Triangles [9] = New Triangle (points [1], points [6], points [2], 0x66cccc); // left

Triangles [10] = New Triangle (points [4], points [0], points [3], 0xcccc66 );

Triangles [11] = New Triangle (points [4], points [3], points [7], 0xcccc66 );

Addeventlistener (event. enter_frame, onenterframe );}

Private function onenterframe (Event: Event): void {

VaR anglex: Number = (mousey-vpy) *. 001;

VaR angley: Number = (mousex-vpx) *. 001;

For (var I: Int = 0; I <numpoints; I ++ ){

VaR point: point3d = points [I];

Point. rotatex (anglex );

Point. rotatey (angley );}

Graphics. Clear ();

For (var k: Int = 0; k <triangles. length; k ++ ){

Triangles [K]. Draw (graphics );

}}}}

 

Point3d.

Package Tom {

Import flash. display. Sprite; I

Mport flash. Events .*;

Public class point3d {

Public var FL: Number = 250;

Private var vpx: Number = 0;

Private var vpy: Number = 0;

Private var CX: Number = 0;

Private var Cy: Number = 0;

Private var CZ: Number = 0;

Public var X: Number = 0;

Public var y: Number = 0;

Public var Z: Number = 0;

Public Function point3d (X: Number, Y: Number, Z: Number)

{This. x = x; this. Y = y; this. z = z;

}

Public Function setcenter (CX: Number, Cy: Number, CZ: Number = 0): void {

This. Cx = Cx; this. Cy = Cy; this. cz = cz ;}

 

Public Function setvanishingpoint (vpx: Number, vpy: Number): void {

This. vpx = vpx; this. vpy = vpy ;}

Public Function get screenx (): number {

VaR scale: Number = fL/(FL + Z + cz );

Return vpx + cx + x * scale ;}

Public Function get screeny (): number {

VaR scale: Number = fL/(FL + Z + cz );

Return vpy + Cy + y * scale;

 

} Public function rotatex (anglex: Number): void {

VaR cosx: Number = math. Cos (anglex );

VaR SiNx: Number = math. Sin (anglex );

VaR Y1: Number = y * cosx-z * SiNx;

VaR Z1: Number = z * cosx + y * SiNx;

Y = Y1; Z = Z1 ;}

 

Public Function rotatey (angley: Number): void {

VaR cosy: Number = math. Cos (angley );

VaR Siny: Number = math. Sin (angley );

VaR X1: Number = x * cosy-z * Siny;

VaR Z1: Number = z * cosy + x * Siny;

X = x1; Z = Z1 ;}

 

Public Function rotatez (anglez: Number): void {

VaR cosz: Number = math. Cos (anglez );

VaR sinz: Number = math. Sin (anglez );

VaR X1: Number = x * cosz-y * sinz;

VaR Y1: Number = y * cosz + x * sinz; X = x1; y = Y1 ;}}}

 

Triangle.

Package Tom {

Import flash. display. graphics;

Public class triangle {

Private var pointa: point3d;

Private var pointb: point3d;

Private var pointc: point3d;

Private var color: uint;

Public Function triangle (A: point3d, B: point3d, C: point3d, color: uint)

{Pointa = A; pointb = B; pointc = C; this. Color = color ;}

Public Function draw (G: Graphics): void {

G. beginfill (color );

G. moveTo (pointa. screenx, pointa. screeny );

G. lineto (pointb. screenx, pointb. screeny );

G. lineto (pointc. screenx, pointc. screeny );

G. lineto (pointa. screenx, pointa. screeny );

G. endfill ();}

}

}

This file is saved in a Tom folder. When we run the file, we only need to bind the document to you.

Write so much for now !! Coming soon