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POFLASH/AS3: Figure that follows the cursor yet constrained to an irregular area
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  1. POFLASH/AS3: Figure that follows the cursor yet constrained to an irregular area
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    copied!<p>How can I make in Actionscript 3 in Flash a MovieClip that follow the cursor, but is constrained to the irregular shape of another MovieClip?</p> <p>Edit: this is somewhat what I need:</p> <pre><code>stage.addEventListener(MouseEvent.MOUSE_MOVE,follow); function follow(evt:MouseEvent){ if(container.hitTestPoint(mouseX, mouseY, true)) { cursor.x = mouseX; cursor.y = mouseY; } else { var dx:int = cursor.mouseX; var dy:int = ; cursor.x = dx; cursor.y = cursor.mouseY; } } </code></pre> <p>What I want to accomplish is to make that the cursor MC still "follow" the cursor when is outside the container MC, but can't escape from it.</p> <p>An old AS2 script that do that, but I'm not sure how to convert it:</p> <pre><code>onClipEvent (mouseMove) { tX = _parent._xmouse; // tX/tY are 'target' X/Y. tY = _parent._ymouse; if (_parent.constraintzone.hittest(tX, tY, true)) { _x = tX; _y = tY; } else { // and now the hurting begins // get XY of center of constraint zone cX = _parent.constraintzone._x; // cX/cY are 'constrained' X/Y, cY = _parent.constraintzone._y; // found somewhere inside the constraint zone. accuracy = 1; // smaller = more accurate. do { dX = (tX-cX)/2; // dX/dY are deltas to the midpoint between dY = (tY-cY)/2; // target XY and constrained XY. if (_parent.constraintzone.hittest((tX-dX), (tY-dY), true)) { cX += dX; // midpoint is in; step out towards mouse. cY += dY; } else { tX -= dX; // midpoint is out; step in towards center. tY -= dY; } // loop end. // (dD &gt; .5) is more accurate, (dX &gt; 10) is less. } while ((Math.abs(dX)&gt;accuracy) || (Math.abs(dY)&gt;accuracy)); _x = tX; // we're done, set the final position. _y = tY; } } </code></pre>
 

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