Wait for Input - Socoder

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Socoder -> Blitz -> Wait for Input
Fri, 13 Apr 2007, 09:05
mike_g	In Blitz if you want to have a program wait for a key press you can use WaitKey. What if you want to wait until either a key is pressed or the mouse has been clicked? Any suggestions?
Fri, 13 Apr 2007, 09:15
power mousey	yes mike I just poll it thru the game loop. Cause your mousey x,y coordinates may change or a click can occur. then, I check for any specific mouse click or area/boundary movement. thats what I did in Cobra. And also in Blitz myself. Yet, its easier with the keyboard and presses too. um...unless you want your program to stop and be static until you wait for a mouse movement or mouse click. Is this what you mean? Better to poll thru and do nothing but loop it thru the while or Repeat-Until loop...your game loop. I hope you can follow. And I hope this helps you.
Fri, 13 Apr 2007, 09:21
mike_g	Sorry I dont get what youre on about I could do something like: ;Make a pause while not mousehit(1) delay 10 wend --v But what about keyboard input? KeyHit() requires a specific scan code. It would be nice if there was something like that that accepted any key. But It doesnt seem like there is.
Fri, 13 Apr 2007, 09:47
power mousey	well.... maybe I don't follow what you're trying to do. lets see.... first, poll thru the loop. tinker and determine if there isn't any mouse input to delay a little more...if this is what you want. Yet, in general the game loop will include a delay or fix it in. Then, when a mouse input is 'moused in' to the particular or specific action. for the keyhit....perhaps a function for particular keys to be tested and a return flg for the particular key pressed and any intended action. I have done this in Blitz and also in Python. And with my particular player character Sprite object or derived object from my class...that uses the Sprite object. Slowly I'm learning and using Object Oriented programming. Yet, thats another topic. I hope this helps you anyway. Other than that, I don't know. Maybe others can help or suggest too?
Fri, 13 Apr 2007, 09:51
Jayenkai	AnyKey() If a button is held down, it returns it's value, starting with Keyboard, then Mouse buttons, then Joystick directions and buttons. Useful for redefining key settings. Print "Test 1" Repeat WhichKey=AnyKey() Until WhichKey<>0 Print "Test 2 : Key hit "+WhichKey Function AnyKey() For n=1 To 255 If KeyDown(n) Then Return n Next For n=1 To 5 If MouseDown(n) Then Return 255+n Next For e=1 To 4 If JoyY(e)<-0.5 Then Return 300+(e20)+1 If JoyY(e)>0.5 Then Return 300+(e20)+2 If JoyX(e)<-0.5 Then Return 300+(e20)+3 If JoyX(e)>0.5 Then Return 300+(e20)+4 For n=1 To 16 If JoyDown(n,e) Then Return 300+(e*20)+(n+4) Next Next End Function --v -=-=- ''Load, Next List!''
Fri, 13 Apr 2007, 10:03
steve_ancell	I did this quite a while back, it's a bit long winded but it does the job. AppTitle"Screen Saver In BlitzBasic" ;BlitzBasic Screen Saver Competition Entry. ;Coded By Stephen Ancell. ;Project Started Monday 21st April 2003 At 02:03 AM. ;Finished Monday 21st April 2003 At 03:30 AM. ;stop screensaver from triggering when being selected under properties. loadtype$=Left$(CommandLine$(),2) Select loadtype Case "/p" ;do nothing. End End Select ;set graphics mode. Graphics 640,480,16 ;create a backdrop image. Global backdrop=CreateImage(GraphicsWidth(),GraphicsHeight()) SetBuffer ImageBuffer(backdrop) For pixel=0 To 1000 c=Rnd(255) Color c,c,c Plot Rnd(GraphicsWidth()),Rnd(GraphicsHeight()) Next ;create a message banner.... Global message=CreateImage(136,11) SetBuffer ImageBuffer(message) Color 255,255,0 Text 0,0,"HELLO BLITZ USERS" ;and stretch it to the screens width an make it bigger. ResizeImage message,GraphicsWidth(),100 ;stick some more text onto the message banner. SetBuffer ImageBuffer(message) Color 255,255,100 Text 0,0,"ScreenSaver Coded For Competition Entry. By Stephen Ancell." Color 0,0,255 Text 176,0,"binary-people.com" ;this will decide how fast the backdrop and message moves about. Const scroll_y=4 ;record where the mouse is at execution. Global mousex_ref=MouseX() Global mousey_ref=MouseY() ;decide where to put the scrolling backdrop quarters. Global backdrop_x1=0 Global backdrop_y1=0 Global backdrop_x2=0+ImageWidth(backdrop) Global backdrop_y2=0 Global backdrop_x3=0 Global backdrop_y3=0+ImageHeight(backdrop) Global backdrop_x4=0+ImageWidth(backdrop) Global backdrop_y4=0+ImageHeight(backdrop) ;here be the main sequence. SetBuffer BackBuffer() Repeat ;move message banner down screen and scroll backdrop up. For y=0 To (GraphicsHeight()-ImageHeight(message)) Step scroll_y check_keys() check_mouse() Cls backdrop_y1=backdrop_y1-scroll_y backdrop_y2=backdrop_y2-scroll_y backdrop_y3=backdrop_y3-scroll_y backdrop_y4=backdrop_y4-scroll_y scroll_backdrop() place_message(0,y,message) Flip Next ;move message banner up screen and scroll backdrop down. For y=y To 0 Step-scroll_Y check_keys() check_mouse() Cls backdrop_y1=backdrop_y1+scroll_y backdrop_y2=backdrop_y2+scroll_y backdrop_y3=backdrop_y3+scroll_y backdrop_y4=backdrop_y4+scroll_y scroll_backdrop() place_message(0,y,message) Flip Next Forever ;scroll backdrop horizontally. Function scroll_backdrop() pixels=2 DrawBlock backdrop,backdrop_x1,backdrop_y1 DrawBlock backdrop,backdrop_x2,backdrop_y2 DrawBlock backdrop,backdrop_x3,backdrop_y3 DrawBlock backdrop,backdrop_x4,backdrop_y4 backdrop_x1=backdrop_x1-pixels backdrop_x2=backdrop_x2-pixels backdrop_x3=backdrop_x3-pixels backdrop_x4=backdrop_x4-pixels If backdrop_x1<(0-ImageWidth(backdrop)) backdrop_x1=GraphicsWidth() EndIf If backdrop_x2<(0-ImageWidth(backdrop)) backdrop_x2=GraphicsWidth() EndIf If backdrop_x3<(0-ImageWidth(backdrop)) backdrop_x3=GraphicsWidth() EndIf If backdrop_x4<(0-ImageWidth(backdrop)) backdrop_x4=GraphicsWidth() EndIf End Function ;stick message banner at x,y position. Function place_message(x,y,message_image) DrawImage message_image,x,y End Function ;detect if any keys have been hit. Function check_keys() For k=1 To 237 If KeyHit(k) End EndIf Next End Function ;detect if mouse has moved or buttons been pressed. Function check_mouse() If MouseX()<>mousex_ref End EndIf If MouseY()<>mousey_ref End EndIf For b=1 To 3 If MouseHit(b) End EndIf Next End Function --v \|edit\| As far as I know, it scans all keys and all mouse movements. \|edit\|
Fri, 13 Apr 2007, 10:29
power mousey	thank you Jay and steve. for showing and offering your codes to help. I understand a little bit know of whats going on. Mike, I sorta know a little more of whats going on and perhaps what you were asking. cheers, power mousey
Fri, 13 Apr 2007, 10:50
mike_g	Thanks guys. I was hoping that there would be some way to do this without having to write some boring function for it. Now I dont have to cos you guys have done it for me Cheers
Fri, 13 Apr 2007, 17:06
steve_ancell	You're welcome Mike. @ Kent... Hello Bro, great to see the great squeaky Power Mousey still going strong .
Fri, 13 Apr 2007, 17:50
power mousey	its just had a Power AMP shortage. Found more sources and reconnected too. ahhhhhhhh!! True. power mousey
Sat, 14 Apr 2007, 03:09
Phoenix	I think using GetKey() and GetMouse() would be faster than the others' examples, but I might be wrong.
Sat, 14 Apr 2007, 03:28
power mousey	well hey, in Python using pygame you use your event handling system witin the game loop for all events that have happened within that particualr frame and then from the list you choose and decide which event to capture and perform what it is you want. here is a code snippet example: #program image1.py #load and display image #import and initialize pygame import pygame pygame.init() #the main function def main(): # screen mode configuration screen=pygame.display.set_mode( (800,600), pygame.FULLSCREEN ) pygame.display.set_caption("Display image") # create background entity background=pygame.Surface(screen.get_size()) background=background.convert() background.fill( (0,0,255) ) #create an image entity...heroes2.bmp heroes2=pygame.image.load("heroes2.bmp") heroes2=heroes2.convert() heroes1=pygame.image.load("heroes1.bmp") heroes1=heroes1.convert() hero=heroes2 #create clock #and game loop cond. clock=pygame.time.Clock() Keepgoing=True #game loop.... while(Keepgoing): # set timer frame rate.. clock.tick(30) #event handling... for event in pygame.event.get(): if event.type==pygame.QUIT: Keepgoing=False if event.type==pygame.KEYDOWN: if event.key==pygame.K_z: hero=heroes2 if event.key==pygame.K_x: hero=heroes1 if event.key==pygame.K_ESCAPE: Keepgoing=False #blit background, flip screen screen.blit(background, (0,0) ) screen.blit(hero, (0,0) ) pygame.display.flip() #call if main function...run main() if __name__=="__main__": main() --v it will be a little different with using LiveWires since events and handling them and determining which actions to perform will be done in your objects that you create from classes with the game module and classes of the LiveWire package. I'm now starting to read up on it and learning it. Most of the game handling events will be handled in objects that you create from user defined classes derived from the game objects and classes. Being so used to running the 'game loop' and handing events such as mouse,joystick, keypresses, etc within the loop or extended and called by functions too. Lets say I'm learning and relearning too. cheers power mousey new editey: I think I should be reading and coding. Hot on the LiveWires too. So, adios amigos.
Sat, 14 Apr 2007, 11:21
steve_ancell	@ Phoenix... I think using GetKey() and GetMouse() would be faster than the others' examples, but I might be wrong. One problem with GetKey, it only returns keys with character values. The KeyDown/KeyHit method returns all standard keys exept [F-Lock] or media keys.
Sat, 14 Apr 2007, 11:30
mike_g	Yep, GetKey() wouldent work for non ASCII characters like ctrl or alt.
Sat, 14 Apr 2007, 11:40
power mousey	yeah, thats right. you guys are right. I put aside Python and especially Cobra and fired up ye ole Blitz and looked into the help files for these commands. you all are absolutely right. well...I should've known this. But, I haven't used Blitz in such a long time. thank you for your cooperation and for the information . power mousey
Sat, 14 Apr 2007, 18:18
steve_ancell	@ The great squeaky one... Kent !, that Python/Pygame that you posted. Am I correct in saying that Python is object oriented ?. It looks very similar to C#, Hmmm... Python looks interesting.
Sat, 14 Apr 2007, 18:49
power mousey	yes Python is mostly object oriented. yet, you can write programs without the object orientation. However, if you use and implement pygame and even LiveWires then be ready freddy for a whole set of object orientations and dependencies and interdependencies of classes, subclasses, objects, attributes, methods within both pygame and LiveWires. Packages and modules. Rabbit holes within rabbit holes of underscores and dots too. You may like it. But you won't be in Kansas anymore nor Arkansas thats for sure!! If you follow the Python on the yellow brick road make sure you have your reference books and look em up a lot. cheers power mousey