Andengine Particle System

It can only be a simple research. After using the images in the example, the particle effect disappears when you click the screen.

Public class mainactivity extends simplebasegameactivity {Private Static final int camera_width = 480; Private Static final int camera_height = 720; private bitmaptextureatlas mbitmaptextureatlas; private itextureregion seconds; Public engineoptions oncreateengineoptions () {final camera = new camera (0, 0, camera_width, camera_height); return New engineoptions (true, screenorientation. portrait_fixed, new ratioresolutionpolicy (camera_width, camera_height), camera) ;}@ overrideprotected void oncreateresources () {bitmaptextureatlastextureregionfactory. setassetbasepath ("GFX/"); mbitmaptextureatlas = new bitmaptextureatlas (gettexturemanager (), 32, 32, textureoptions. bilinear); mparticletextureregion = bitmaptextureatlastextureregionfactory. createfromasset (mbitmaptextureatlas, this, "maid", 0, 0); mbitmaptextureatlas. load () ;}@ overrideprotected scene oncreatescene () {final scene = new scene (); scene. setbackground (new background (0.09804f, 0.6274f, 0.8784f); circleparticipant emitter = new circleparticipant emitter (camera_width/2, camera_width/2, 30); // circular particle generator, the position is in the center of the screen, with a radius of 30 final spriteparticlesystem (emitter, 10, 60, 30, mparticletextureregion, getvertexbufferobjectmanager (). // use the image as the particle system. addparticipant leinitializer (New colorparticipant leinitializer <sprite> (1, 0, 0); // initialize it to the red participant system. addparticipant leinitializer (New alphaparticleinitializer <sprite> (0); // The Initialization is fully transparent. addparticipant leinitializer (New blendfunctionparticipant leinitializer <sprite> (gles1_gl _ src_alpha, gles1_gl _ One); participant system. addparticipant leinitializer (New velocityparticipant leinitializer <sprite> (-5, 5, 20, 10); // The first two values are values of horizontal acceleration, the following two values are the values of the vertical acceleration. addparticipant leinitializer (New rotationparticipant leinitializer <sprite> (0.0f, 360.0f); // The value range of the rotation angle is participant system. addparticipant leinitializer (New expireparticipant leinitializer <sprite> (6); // The duration of a single particle, I .e., the particle system. addparticipant lemodifier (New scaleparticlemodifier <sprite> (0, 5, 1.0f, 2.0f); // The particle generation process changes from the original size to the size of 2 times the size of the particle system. addparticipant lemodifier (New colorparticipant lemodifier <sprite> (0, 3, 1, 1, 0, 0.5f, 0, 0); // color change between 0 and 3 seconds. addparticipant lemodifier (New colorparticipant lemodifier <sprite> (4, 6, 1, 1, 0.5f, 1, 0, 1); // color change between 4 and 6 seconds. addparticipant lemodifier (New alphaparticlemodifier <sprite> (0, 1, 0, 1); // The transparency changes between 0 and 1 seconds. addparticipant lemodifier (New alphaparticlemodifier <sprite> (5, 6, 1, 0); // scene for transparency change between 5 and 6 seconds. attachchild (participant system); // screen touch event scene. setonscenetouchlistener (New ionscenetouchlistener () {public Boolean onscenetouchevent (scene pscene, touchevent pscenetouchevent) {If (pscenetouchevent. isactionup () {participant system. setparticipant lesspawnenabled (false);} return false ;}}); Return scene ;}}

If anything is wrong, you are welcome to make a picture.