SWF e-book.as

margin = 20;

// bg defines the hitArea which raises mouse events // - this is used so that the book symbol doesn't need to have a filled background createEmptyMovieClip("bg",1); bg._visible = false; bg.beginFill(0,100); bg.moveTo(margin,margin); bg.lineTo(width-margin,margin); bg.lineTo(width-margin,height-margin); bg.lineTo(margin,height-margin); bg.lineTo(margin,margin); bg.endFill();

// This initialises the book page lines createEmptyMovieClip("book",2); book.hitArea = bg;

// Draws page lines and folde line based on mouse position book.onMouseMove = function() {

w = (width-margin*2)/2; h = height-margin*2;

// Get mouse coords relative to book middle x = _xmouse-margin-width/2; y = _ymouse-margin;

// constrain mouse to radius W a = Math.atan2(y,x); r = Math.sqrt(x*x+y*y); if (r>w) r=w; x = Math.cos(a)*r; y = Math.sin(a)*r;

// Calculate point Z and dy,dx of line C dx = width-margin-x; dy = y-margin; Zx = x+dx/2; Zy = y-dy/2;

// Calculate line D Px = Zx-(Zy-margin)*dy/dx; Qy = Zy+(width-margin-Zx)*dx/dy;

clear(); lineStyle(3,0); moveTo(margin,margin); lineTo(Px,margin); lineTo(width-margin,Qy); lineTo(width-margin,height-margin); lineTo(margin,height-margin); lineTo(margin,margin); moveTo(width/2,margin); lineTo(width/2,height-margin);

moveTo(Px,margin); lineTo(margin+width/2+x,margin+y); lineTo(width-margin,Qy);

};