sprite

问题 Im New To Pygame But Kinda OK On Python, Im Creating A Zombie Shooting Game With an overhead view. I managed to make the character move when pressing the arrow keys. But now i need to get the player to FACE the mouse/cursor without clicking the screen all the time. Any Help? 回答1: for event in pygame.event.get(): if event.type == MOUSEMOTION: mousex, mousey = event.pos # build a vector between player position and mouse position moveVector = (mousex-playerx, mousey-playery) """ compute the

问题 LibGDX has a coordinate system where (0,0) is at the bottom-left. (like this image: http://i.stack.imgur.com/jVrJ0.png) This has me beating my head against a wall, mainly because I'm porting a game I had already made with the usual coordinate system (where 0,0 is in the Top Left Corner). My question: Is there any simple way of changing this coordinate system? 回答1: If you use a Camera (which you should) changing the coordinate system is pretty simple: camera= new OrthographicCamera(Gdx

问题 LibGDX has a coordinate system where (0,0) is at the bottom-left. (like this image: http://i.stack.imgur.com/jVrJ0.png) This has me beating my head against a wall, mainly because I'm porting a game I had already made with the usual coordinate system (where 0,0 is in the Top Left Corner). My question: Is there any simple way of changing this coordinate system? 回答1: If you use a Camera (which you should) changing the coordinate system is pretty simple: camera= new OrthographicCamera(Gdx

问题 Could someone please explain why this doesn't want to work? It's a bit of decoration to go behind a logo. When the dMove var is commented out I get the appropriate line of squares fading in and out at random spots along the x = 78 axis, but when introduced nothing appears at all... private var floatBG:UIComponent = new UIComponent(); private function addDP(event:TimerEvent):void{ var dY:Number = 5+Math.ceil(Math.random()*60); var dSize:Number = Math.ceil(Math.random()*12); var dAlpha:Number =

问题 Hi how can i put a one sprite over another sprite as seen in the image below as you can seen there is two sprite in the image (1).The sprite in the top should place over the sprite in the bottom as seen in the image (3).I tried some And engine example but did not get any solution yet .If any one know how to handle this problem please find some solution or any source.Thanks in advance Attaching code as per the edit public class MainActivity extends SimpleBaseGameActivity { // =================

问题 Hi how can i put a one sprite over another sprite as seen in the image below as you can seen there is two sprite in the image (1).The sprite in the top should place over the sprite in the bottom as seen in the image (3).I tried some And engine example but did not get any solution yet .If any one know how to handle this problem please find some solution or any source.Thanks in advance Attaching code as per the edit public class MainActivity extends SimpleBaseGameActivity { // =================

问题 I'm trying to change the image that a sprite from an array is displaying. Here is the code I'm using: ((Sprite *)[enemiesArray objectAtIndex:index]).image = baseImage; I get the error message: error: request for member 'image' in something not a structure or union What am I doing wrong? Thanks for reading. 回答1: I don't think that this is the way to do this. Rather than that you should call one of the init methods: - (id) initWithCGImage:(CGImageRef)image; - (id) initWithTexture:(Texture2D*)

问题 I'm attempting to use this plugin on every SVG in a given project. I believe the default compression or reformatting of the svg's themselves is causing issues however. For example, I have a standard three bar menu icon: <?xml version="1.0" encoding="UTF-8" standalone="no"?> <svg width="200px" height="180px" viewBox="0 0 200 180" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule=

问题 i have 2 sprites on stage. bottomSprite is added to the display list first, followed by topSprite. topSprite partially covers bottomSprite. i've added an event listener to bottomSprite for MouseEvent.MOUSE_MOVED notifications to simply trace the mouseX and mouseY coordinates. however, the notification doesn't work for the parts of bottomSprite that are covered by topSprite. var bottomSprite:Sprite = new Sprite(); bottomSprite.graphics.beginFill(0x666666, 0.5); bottomSprite.graphics.drawRect

问题 I'm trying to draw an element always facing camera. I've read some articles about billboard in shaders, the problem is that I need to compute rotation out of shaders and with different objects (circles, square, mesh, …). So, I'm trying to compute model's rotation only (not matrix, something similar to Transform.LookAt in Unity engine) but I don't know how to do, here is what I've got: // Camera data mat4 viewMatrix = camera->getMatrix(); vec3 up = {viewMatrix[0][1], viewMatrix[1][1],