hittest

问题 grav = 0; gravity = 2; this.character.y += grav; grav += gravity; while (this.ground.hitTestPoint(this.character.x, this.character.y, true)) { this.character.y -=gravity; grav = 0; } } I use this command for gravity and they work with camera for Flash Player 26 but "hitTestPoint" is not working properly in "air 26 for Android". When camera moves, hitTestPoint is failing and causing the character to fall. 来源： https://stackoverflow.com/questions/51799421/hittestpoint-not-working-with-camera

来源： https://stackoverflow.com/questions/60073349/in-which-cases-arscnview-raycastquery-returns-nil

来源： https://stackoverflow.com/questions/60073349/in-which-cases-arscnview-raycastquery-returns-nil

问题 TL;DR : I'm using a Path to specify the hit area for an Image . But I don't know how to adjust the Path coordinates to match the layout that SwiftUI decides on... or if I even need to do so. Runtime My (test) app looks like this, Image borders ( not frames) colored for clarity: What I want is for taps in the opaque orange to be handled by that Image . Taps outside the opaque orange — even if within the bounds of the orange image — should "fall through" either to the green image or the gray

问题 TL;DR : I'm using a Path to specify the hit area for an Image . But I don't know how to adjust the Path coordinates to match the layout that SwiftUI decides on... or if I even need to do so. Runtime My (test) app looks like this, Image borders ( not frames) colored for clarity: What I want is for taps in the opaque orange to be handled by that Image . Taps outside the opaque orange — even if within the bounds of the orange image — should "fall through" either to the green image or the gray

问题 (Targeting OS X 10.10, latest version of Xcode) I have an NSButton subclass. The button needs to respond to mouse rollovers/hovers, ala a web button. The button requires an appearance in the shape of a circle. Accordingly, -setImage: and -setAlternateImage: are called with circular-shaped graphics. Problem 1: the default behaviour of NSButton results in a positive hit-test when the mouse is clicked anywhere within the rect of the NSButton. This includes mouse clicks that are outside the

问题 I have a view which I'll call parentView which has a subview called childView . Part of childView is outside the bounds of parentView , and childView has a panGestureRecognizer attached to it. I have implemented the following in parentView so that it will recognize touches to childView even though it's outside of its superviews bounds: - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event { if (!self.clipsToBounds && !self.hidden && self.alpha > 0) { for (UIView *subview in self

问题 I'm building a 16 bit game for my final project and have completed all the objects and environments, I exported all the images as png files into flash as well as my character, breaking the environment up into background, objects and foreground. I can't however find a simple tutorial explaining how to do bitmap hit testing or another simple way of making my character not be able to move into the objects. Could someone recommend a simple tutorial or an alternative method of achieving this ?

问题 So I have drawn some lines on a Visual Layer and added it to Canvas . Now that I'm trying to HitTest them I'm getting the whole visual. How can I get only the line that I click on? public class MyDrawing : DrawingVisual { public MyDrawing () { using (var dc = RenderOpen()) { foreach (var block in blocks) { // Draw lines here } } } } private void OnMouseRightButtonUp(object sender, MouseButtonEventArgs e) { var x = MousePos.RightDown.X; var y = MousePos.RightDown.Y; var hitRect = new Rect(x -

问题 I am having a couple of problems when adding a child in action script 3. I am currently building a Space Invaders game and I am writing the function that adds the asteroids to the stage. My first problem is that the all previous asteroids are being added each time I try to add a new asteroid. My second issue is when I add the hitTestOject function. It throws up an error and it doesn't do anything when the space ship hits the asteroid object. Here is the error I receive with the hitTestObject: