Sdl Basic

Sdl Basic

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  # sdlBasic isa little basic for make simple games in 2d # # This basic run on : # linux(with a reasonable recent version) # windows (9x and nt-XP based) # macOSX # FreeBSD # OpenBSD # MorphOS # AmigaOS # # This basic is another demostration to the GPL's power # the basic interpreter come from wxbasic by David Cuny ("http://wxbasic.sourceforge.net") distribuited under lGPL # The graphic system is based uppon SDL graphics libraries family("http://www.libsdl.org")distribuited under GPL # The graphics engine was initially based on the aliens demo game ("http://www.libsdl.org/projects/aliens") # written in c and distribuited on GPL, later graphic engine was re-written from scratch. # putpixel and getpixel routines are derivated from SDL tutorial and was improved with Gigi Davassi suggestions # The original line rutine was imported from Alvyn Basic with Author's write permission. # I used also the source of sdldraw library ("http://sdl-draw.sourceforge.net/") ever lGPL # # I cut, pasted and adapted code distribuited under lGPL. # This software is subject to lGPL license and is free as every program used to create it # #__________________________________________________________________________________ _______________________________# # # sdlBasic comands and syntax list: # # i suggest to read full documentation for more details # # sections: # Run time # Sub and function # Control structures # Operator # Array # Strings # Maths # Files # Dirs # Data function # console output # Date and time # Memory Bank # # Screen # Graphics # File graphics input output # Image manipulation # Blitting # Sprite system
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  # Bob system # Text draw # Print screen # Sounds and music # CD support # Video Mpeg # Keyboard # Mouse # Joystick # SDLtime # Socket # #__________________________________________________________________________________ ______________________________ # # notes: # * it don't works # ** it don't works and need to be tested # ? it don't work well: unresolved bug # -> to be deleted # #__________________________________________________________________________________ ______________________________ # Run Time # command line arguments # --nodefaults : disable the default setting display # --nosound : disable sound # --nosocket : disable socket support # --debug : start sdlBasic in step to step mode # --version : display the version (iso date) # --license : display license type # --copyright : display copyright ( ;-) absolutelly free software ) # --help : display a run option list # const : declaration of numeric constant option explicit : must declare variable option qbasic : qbasic mode you can use a function before create in a code include(filename) : inclusion of extern source file argc : return number of args in caller argv(index) : return arg in caller command [param] : returns requested arg from command line command$ [param] : returns requested arg from command line argument(optional n) : returns the arguments sends to sub/function with n=0 or without parameter will be return the arguments count argument$(optional n) : returns the arguments sends to sub/function with n=0 or without parameter will be return the arguments count ?setenv(varname,value) : set a enviremont variable in currently os. if variable exist it will be overwrite getenv(varname) : return the value of enviremont variable in currently os *run : run command on new thread shell : execute command, wait until finished end : terminate program and exit stop : breakpoint and start debug os : return the operative system in work (linux windows
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  macosx etc...) isfbsd : return 1 if the current os is FreeBSD isosx : return 1 if the current os is MacOSX islinux : return 1 if the current os is linux iswin32 : return 1 if the current os is windows ismos : return 1 if the current os is MorphOS isnetbsd : return 1 if the current os is NetBSD isamigaos : return 1 if the current os is AmigaOS # debug : work with option --debug at start or when you press ctrl+c key in interpretation of basic program # if you press F5 you continue the normal execution # with F6 you advanced in execution of one step # with F4 you can see the vale of the prompted variable. For see the value of an array you must enter the name # of array without the square bracket and at the request you must enter the indexes of record requested. #__________________________________________________________________________________ _______________________________________ # Sub and Function declare [sub | function][name] : declare a subrutine/function in qbasic mode sub [name](args...) : start a subrutine exit sub : break a subrutine end sub : terminate a subrutine function [name](args...) : start a function exit function : break a function end function : terminate a function return [value | variable] : set the result of a function(can substituite funcname=x) #__________________________________________________________________________________ _______________________________________ # Control Structures while [condition expression] : start while cycle wend : end while cycle end while : end while cycle exit while : stop while cycle continue : terminate the last while cycle if [condition expression] : classic if control structure then : then must be terminate a command else : classic else:it must be a single command elseif : elseif is support in sdlBasic end if : must terminate a if structure select case [condition expression] : similar to c switch (syntax like pascal) case : control condition case else : default condition end select : end select case structure for[var]=[val1]to[val2][step[vals]] : classic for-next well implemented for each [var] in [array] : for each are well supported warning: report the indexes of array not the value continue : force the exit of for next cycle (work only with
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  for each) exit for : force the exit of for next cycle next : end for loop end for : sdlBasic accept end for do : start a do-loop cycle loop : the bottom of do-loop cycle exit do : the exit of a do-loop cycle *repeat : not implemented yet *until : not implemented yet or : condition in espression logic or and : condition in espression logic and xor : condition in espression logic xor not : condition in espression logic not #__________________________________________________________________________________ _______________________________________ # Operator [+] : addtional operator [-] : substraction operator [*] : multiply operator [/] : division operator [^] : exponetial operator mod : rest of division operator shl : shift left shr : shift right #__________________________________________________________________________________ _______________________________________ # Array dim [name][[index of array]] : declare an array note: array use [] for parentesis *redim [name][[index of array]] : redeclare an array shared [variable] : declare variable extern in a subrutine common [variable] : declare variable or array global lbound [array] : returns lower bound of array *quicksort [array] : sort an array ubound [array] : upperbound of array erase [array] : free an array #__________________________________________________________________________________ _______________________________________ # Strings asc(char) : returns ascii value of first char in string chr(v) : return string corresponding to ascii key value chr$(v) : return string corresponding to ascii key value *format() : returns formatted string with embedded args *format$() : returns formatted string with embedded args insert(source$,target$,position) : insert source string to target at index insert$(source$,target$,position) : insert source string to target at index instr(optional start,source$,target$) : returns position in source that target
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  was found lcase(string$) : convert string to lower case lcase$(string$) : convert string to lower case left(string$,number) : returns leftmost chars in string left$(string$,number) : returns leftmost chars in string len(string$) : return length of string length(string$) : return length of string ltrim(string$) : returns string with left whitespace removed ltrim$(string$) : returns string with left whitespace removed mid(string$,start,optional end) : returns string with chars 1..n from source mid$(string$,start,optional end) : returns string with chars 1..n from source replace(opt index,source$,replace$) : replace string from source with replace starting at index replace$(opt index,source$,replace$) : replace string from source with replace starting at index replacesubstr(source$,rep$) : replace substring in source with withstring return the new string replacesubstr$(source$,rep$) : replace substring in source with withstring return the new string reverse(string$) : reverse a string return the new string reverse$(string$) : reverse a string return the new string right(string$,number) : returns rightmost chars in string right$(string$,number) : returns rightmost chars in string rinstr(optional start,source$,target$) : reverse Instr function, search from end to start rtrim(string$) : right trim string rtrim$(string$) : right trim string space(n) : return string with n spaces in it space$(n) : return string with n spaces in it str(value) : return string representation of numeric expression str$(value) : return string representation of numeric expression strf(value) : converts a floating point or number value to a string strf$(value) : converts a floating point or number value to a string string(n,string$) : returns string m chars wide with n in it string$(n,string$) : returns string m chars wide with n in it tally(src$,sub$) : returns number of occurances of matchstring trim(string$) : trim string trim$(string$) : trim string typeof(variable) : returns string with datatype typeof$(variable) : returns string with datatype ucase(string$) : convert string to upper case ucase$(string$) : convert string to upper case val(string$) : returns closest numeric representation of number #__________________________________________________________________________________ _______________________________________ # Maths abs(value) : returns absolute value of number acos(value) : returns arccos of number asin(value) : returns arcsin of number atan(value) : returns arctan of number bin(value) : returns binary representation of number bin$(value) : returns binary representation of number cos(value) : returns cos of number
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  exp(value) : returns exponential function fix(value) : truncate fractional number, rounding down towards zero floor(value) : truncate fractional number, rounding down towards zero frac(value) : return fractional portion of number hex(value) : returns hexidecimal representation of number hex$(value) : returns hexidecimal representation of number int(value) : convert to 32 bit integer, truncating decimals log(value) : returns natural log of expression randomize(value) : reseed the random number generator rnd(optional upper) : return an random number round(value) : round to nearest integer sgn(value) : returns sign of numeric expression sin(value) : returns sine of given angle in radians sqr(value) : return square root - make sure it's non-negative tan(value) : return tanget of given angle in radians min(value1,value2) : return min number of the operands max(value1,value2) : return max number of the operands bitwiseand(value1,value2) : return the logic and of the operands andbit(value1,value2) : return the logic and of the operands bitwiseor(value1,value2) : return the logic or of the operands orbit(value1,value2) : return the logic or of the operands bitwisexor(value1,value2) : return the logic xor of the operands xorbit(value1,value2) : return the logic xor of the operands #__________________________________________________________________________________ ______________________________________ # Files open[filename]for{input|output|append}as[stream]: open file stream file input #[stream] : read a line from file stream input #[stream] : read a line from file stream file output #[stream] : print a line in file stream print #[stream] : print a line in file stream close [stream] : close file stream eof(stream) : returns nonzero if Eof fileexists(filename) : returns true if the file exists filecopy(source,dest) : copy a file filemove(source,dest) : move a file filerename(filename,newname) : rename a file freefile() : return the handle of the next free file kill(filename) : delete filename. filename can be then path+filename filedelete(filename) : delete filename. filename can be then path+filename loc(stream) : returns position in file lof(stream) : returns length of file readbyte(stream) : return a byte from the file rename(filename,newname) : rename file seek(stream) : seek file position/return current file position writebyte(stream,byte) : write a byte in the file #__________________________________________________________________________________ _______________________________________ # Dirs
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  chdir(path) : change directory dir dir$ : returns current path direxists(path) : returns true if directory exists dirfirst(path) : returns first entry in path dir dirnext : returns next entry in path dir mkdir(path) : create a new directory rmdir(path) : remove directory #__________________________________________________________________________________ _______________________________________ # Data Function data(optional 0-255 param) : store the data read(optional pointer) : without parameter read a data record with point change the next data loaded #__________________________________________________________________________________ _______________________________________ # Console Output print [text|variable|number] : Print in standard output a espression (i use it for debugging output) #__________________________________________________________________________________ _______________________________________ # Date and Time date() : returns date in MM-DD-YYYY format date$() : returns date in MM-DD-YYYY format time() : return time in HH:MM:SS format time$() : return time in HH:MM:SS format ticks() : returns current timer value #__________________________________________________________________________________ _______________________________________ # Memory Bank reservebank(bank,size) : make a raw memory bank. there are 256 bank ( 0 - 255) baseimage(bank,image) : link a memorybank from a imagebank bitmap access baseimageCC(bank,image) : link a memorybank from a imagebank bitmap access with colorkey trasparency basescreen(bank,image) : link a memorybank from a screen bitmap access basesound(bank,sound) : link a memory bank with soundb bank freebase(bank) : unconnect a memory bank with a image or screen freebank(bank) : destroy a memory bank copybank(s,d) : copy the bank s in d loadbank(filename,optional bank) : load a file in memory bank (if omitted the current ) savebank(filename,optional bank) : save memory bank in a file setbank(optional bank) : set the current bank (if omitted return the current) currentbank(optional bank) : set the current bank (if omitted return the
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  current) sizebank(optional bank) : return the bank memory size (if omitted return the value of current bank) banksize(optional bank) : return the bank memory size (if omitted return the value of current bank) poke(optional bank,address,value) : write a byte value in memory bank at specific address doke(optional bank,address,value) : write a 16bit value in memory bank at specific address loke(optional bank,address,value) : write a 32bit value in memory bank at specific address peek(optional bank,address) : read a byte value in memory bank at specific address deek(optional bank,address) : read a 16bit value in memory bank at specific address leek(optional bank,address) : read a 32bit value in memory bank at specific address memcopy(sbank,s,dbank,d,size) : copy a part of bank memory s in d #__________________________________________________________________________________ _______________________________________ # Screen setdefaults(w,h,bpp,m) : open the display, perform initializations on cursor and fonts and sets default values on sprites, bobs and screens system. setdisplay(w,h,bpp,m) : open the screen/window in double buffer. 0=fullscreen|1=window|2=resizable|3=fullscreen software (provvisory) setcaption(title) : change the display window title setalphachannel(v) : activate deactivate alpha channel trasparency caption() : return the display window title displaymode : return the display mode displaywidth : return the display width displayheight : return the display height displaybpp : return the display color depth screen(n) : set the logic screen n without parameter return the current screen screenz(n,z) : set the zorder position of screen if z =-1 report actual z position lastscreen : return the last screen open directscreen : direct drawing on display like a screen(more fast but sprite and offset does not works) screenopen(n,w,h,dx,dy,dw,dh,flag) : open the logic screen n of dimension w,h in display coordinates dx,dy,dw,dh screenclose(n) : close the logic screen n screenclone(n,s,x,y,w,h,flag) : create a new viewport in logic screen s screencopy(n,x,y,w,h,nd,xd,yd) : copy a portion of screen n in a screen nd screenfade(n,t) : fade the screen n in t time in multitasking without parameter return 0 if terminate screenfadeout(n,t) : fade the screen n in t time in multitasking without parameter return 0 if terminate screenfadein(n,otional i,optional t) : fade the screen n to image i in t time in multitasking without parameter return 0 if terminate screencrossfade(n,i,t) : fade the screen n from current screen to
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  image i int time in multitasking without parameter return 0 if terminate screenalpha(n,a) : set alpha(trasparency) of screen n screenlock(n) : lock the screen n for direct graphics access screenunlock(n) : unlock the screen n for direct graphics access screenrect(x,y,w,h,flag) : change the display output coordinates of the current screen screenviewport(x,y,w,h,flag) : change the display output coordinates of the current screen xscreenrect : give the x coordinate of current screen viewport screenviewportx : give the x coordinate of current screen viewport yscreenrect : give the y coordinate of current screen viewport screenviewporty : give the y coordinate of current screen viewport wscreenrect : give the w value of current screen viewport screenviewportw : give the w value of current screen viewport hscreenrect : give the h value of current screen viewport screenviewporth : give the h value of current screen viewport flagscreenrect : give the flag value of current screen viewport screenviewportflag : give the flag value of current screen viewport screenwidth : give the current screen width screenheight : give the current screen height offset(x,y) : set the logical current screen position screenoffset(x,y) : set the logical current screen position xoffset : give the x coordinate offset in current screen screenoffsetx : give the x coordinate offset in current screen yoffset : give the y coordinate offset in current screen screenoffsety : give the y coordinate offset in current screen cls : clear the current logic screen screenswap : update display,bobsystem,spritesystem autoback(m) : enable / disable automatic screenswap m=0 disable m>0 wait m milliseconds and perform screenswap m<0 perform the invocate in code screenswap after m milliseconds setautoback(m) : enable / disable automatic screenswap m=0 disable m>0 wait m milliseconds and perform screenswap m<0 perform the invocate in code screenswap after m dualplayfield(optional m) : set/unset automatic update of a screen upper sprite waitvbl : wait automatic screenswap fps(optional n) : set/unset or give the current frame rate counter (0/1/none) #__________________________________________________________________________________ _______________________________________ # Graphics rgb(r,g,b) : give current color in Uint32 format
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  enablepalette(optional state) : enable disable and check the palettemode in 8 bit display color (c,optional v) : set palette color c with value v se missing give the current color c palette(optional 0-255 param) : set all palettes color(0,0xff,0xff00,....) colorcycling(s,e,d=0|1,optional delay) : move the palette color one color forward or back work only in 8bit display if you set delay automatically colorcycling work on multitasking colorcycling() : stop the multitasking colorcycling ink(c) : select the current color in Uint32 format point(x,y) : give the color of x,y point getpixel(x,y) : give the color of x,y point dot(x,y) : write x,y point with a current color setpixel(x,y) : write x,y point with a current color putpixel(x,y) : write x,y point with a current color plot(x,y,c) : write x,y point with a c color line(x,y,x1,y1) : write a line box(x,y,x1,y1) : write a empty rettangle bar(x,y,x1,y1) : write a fill rettangle circle(x,y,r) : write a circle fillcircle(x,y,r) : write a fill circle ellipse(x,y,rx,ry) : write a ellipse fillellipse(x,y,rx,ry) : write a fill ellipse paint(x,y) : fill a close area triangle(xa,ya,xb,yb,xc,yc) : draw a fill triangle polyline(xa,ya,xb,yb,xc,yc,.....) : draw a perimeter of a polygon polygon(xa,ya,xb,yb,xc,yc,.....) : draw a fill polygon #__________________________________________________________________________________ _______________________________________ # File Graphics Input Output loadimage(filename,optional n) : load a graphics file in a slot n if omitted n is the first free return n loadzipimage(zipfile,filename,opt n) : load a zipped graphics file in a slot n if omitted n is the first free return n saveimage(filename,n) : save slot n in a graphics file(only bmp) loadsound(filename,opt n) : load a wave file in a sound slot n loadzipsound(zipfile,filename,opt n) : load a zipped wave file in a sound slot n ?savesound(filename,n) : save a wave file from sound slot n (low quality result) loadmusic(filename) : load a music module (mod family,ogg,mp3 and midi) #__________________________________________________________________________________ _______________________________________ # Image Manipulation hotspot(n,x,y) : select the point of coordinates in a imageslot (n,0,0=up left(default) | n,1,1=center | n,2,2 =down right)n= image setcolorkey(c) : set the colorkey for bitmap transparency if set -1 (default ) will be used the left-up corner color. colorkey(c) : set the colorkey for bitmap transparency if set -1 (default ) will be used the left-up corner color. imageexists(n) : give 1 if the image buffer n exist 0 if empty imagewidth(n) : give the image n width or error if image n if
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  empty imageheight(n) : give the image n height or error if image n if empty deleteimage(n) : erase the image n of the memory copyimage(s,d) : copy image s to image d setalpha(n,a) : set trasparency in image n imagealpha(n,a) : set trasparency in image n zoomimage(n,zoomx,zoomy) : zoom image rotateimage(n,angle) : rotate image rotozoomimage(n,angle,zoom) : rotate and zoom image mirrorimage(n,x,y) : vertical-orizontal mirror #__________________________________________________________________________________ _______________________________________ # Blitting blt(n,sx,sy,sw,sh,dx,dy) : copy a part of graphics slot in screen pastebob(x,y,n) : copy on screen image n at x,y performing clip pasteicon(x,y,n) : copy on screen image n at x,y without colorkey trasparency grab(n,x,y,w,h) : grab a a selectarea and copy it in slot n #__________________________________________________________________________________ _______________________________________ # Sprite System # # In this implementation there are 512 sprites software that are indipendent from the screens spriteclip(x,y,w,h) : set the visibilty area of sprites sprite(n,x,y,fr) : set or move the sprite n at x,y with image fr deletesprite(n) : unset sprite n xsprite(n) : give the x of sprite n spritex(n) : give the x of sprite n ysprite(n) : give the y of sprite n spritey(n) : give the y of sprite n spritewidth(n) : give the width of sprite n spriteheight(n) : give the height of sprite n frsprite(n) : give the frame of sprite n spriteimage(n) : give the frame of sprite n livesprite(n) : give 1 if sprite n is "live" spriteexist(n) : give 1 if sprite n is "live" spritehit(n,optional x) : give 1 if sprite n have a collission with sprite x if x=-1 with any spritez(n,z) : set the zorder position of sprite if z omitted or-1 report actual z position lastsprite : return the last sprite active autoupdatesprite(m) : set/ unset automatic sprites update at screenswap updatesprite : manual sprites updates at next screenswap #__________________________________________________________________________________ _______________________________________ # Bob System # # In this implementation there are 512 bobs software that are dipendent from the screens and performs # background preserve
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  setbob(n,scr) : set bob n at logic screen scr bob(n,x,y,fr) : set or move bob n at x,y with frame fr deletebob(n) : unset bob n xbob(n) : give x of bob n bobx(n) : give x of bob n ybob(n) : give y of bob n boby(n) : give y of bob n bobwidth(n) : give width of bob n bobheight(n) : give height of bob n frbob(n) : give the frame of bob n bobimage(n) : give the frame of bob n livebob(n) : give 1 if bob n is "live" bobexist(n) : give 1 if bob n is "live" bobhit(n,optional x) : give 1 if bob n have a collision with bob x if x=-1 with any bobz(n,z) : set the zorder position of bob if z =-1 report actual z position lastbob : return the last bob active autoupdatebob(m) : set/ unset automatic bobs update at screenswap updatebob : manual bobs updates at next screenswap #__________________________________________________________________________________ _______________________________________ # Text Draw text(x,y,s,testo,optional type) : print the text testo on current screen with s size The type of render can be default=solid 1=Shaded 2=blended setfont(path) : select the font getfont() : return the current font textrender(testo,s,optional n,optional type) : make an image slot n with the text write with a current font and size s if n is omitted use and return first free The type of render can be default=solid 1=Shaded 2=blended #__________________________________________________________________________________ _______________________________________ # Print Screen pen(c) : set prints color (without parameter give the current color) paper(c) : set caractere back color (without parameter give the current color) fprints(testo) : print a text monospace without cariage return prints(testo) : print a text monospace locate(x,y) : move the cursor at x y atx : give x of cursor aty : give y of cursor curson : show the text cursor on screen at(atx,aty) cursoff : hide the text cursor inputs(prompt,defs) : give the string insert to keyboard(default is default text) zoneinputs(x,y,l,default) : give the string insert to keyboard in x,y coordinates with l lenght #__________________________________________________________________________________ _______________________________________ # Sounds and Music isenabledsound() : return 1 if sdlsound was enabled soundenabled() : return 1 if sdlsound was enabled
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  soundexists(n) : give 1 if the sound buffer n exist 0 if empty deletesound(n) : delete from memory sound n copysound(s,d) : copy sound bank s in sound bank d musicexists() : give 1 if the music is load 0 if empty playsound(n,c,optional l) : play the sound n in channel c l loops playfreqsound(n,c,pitch,optional l) : play the sound n in channel with pitch resampling frequency c l loops volumesound(c,optional v) : change the volume of channel c (-1 all) at value v (0-128) without v or -1 give the current volume soundvolume(c,optional v) : change the volume of channel c (-1 all) at value v (0-128) without v or -1 give the current volume stopsound(optional c) : stop the wave play in channel c (-1 or none =all) pausesound(optional c) : paused channel c (-1 or none =all) resumesound(optional c) : unpaused channel c (-1 or none =all) ?vumetersound(optional c) : give the current state of sound channel (-1 or none=all) sound3d(c,angle,dist) : position sound in 3d space positionsound(c,angle,dist) : position sound in 3d space soundchannels(n) : dinamically change the number of channells managed by sdlBasic playmusic(n) : play track xm,mod,ogg,mp3 n=number of ripetition(-1 always) positionmusic(p) : move the execution at p second stopmusic : terminate the music play pausemusic : set pause of the current music resumemusic : unset pause of musica rewindmusic : report at start the music fademusic(t) : music fade volumemusic(optional v) : change the volume of music (0-128) -1 or none give the current volume musicvolume(optional v) : change the volume of music (0-128) -1 or none give the current volume speedmusic(v) : change the speed of music musicspeed(v) : change the speed of music #__________________________________________________________________________________ _______________________________________ #CD Support numdrivescd() : returns the number of cd-rom drives on the system. countcddrives() : returns the number of cd-rom drives on the system. namecd(drive) : returns a human-readable, system-dependent identifier for the cd-rom. cdname(drive) : returns a human-readable, system-dependent identifier for the cd-rom. opencd(n,drive) : opens a cd-rom drive for access. indrivecd(n) : return 1 if cd is in driver cdinserted(n) : return 1 if cd is in driver trackscd(n) : return the number of tracks in cd countcdtracks(n) : return the number of tracks in cd curtrackcd(n) : return the current track in cd cdcurtrack(n) : return the current track in cd
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  curframecd(n) : return the current frame in cd cdcurframe(n) : return the current frame in cd playcd(n,s,l) : play a cd playtrackscd(n,trk1,fr1,ntrks,nfrs) : play the given cd track(s) from frame fr1 of trrack trk1 for ntrks/nfrs playtrackscd(n,trk1,ntrks) : play the given cd track(s)from trk1 for ntracks playtrackscd(n) : play all cd track(s) playcdtracks(n,trk1,fr1,ntrks,nfrs) : play the given cd track(s) from frame fr1 of trrack trk1 for ntrks/nfrs playcdtracks(n,trk1,ntrks) : play the given cd track(s)from trk1 for ntracks playcdtracks(n) : play all cd track(s) pausecd(n) : pauses a cdrom resumecd(n) : resumes a cdrom stopcd(n) : stops a cdrom ejectcd(n) : ejects a cdrom closecd(n) : closes a cd handle tracktypecd(n,t) : return SDL_AUDIO_TRACK(0...) or SDL_DATA_TRACK(1...) cdtracktype(n,t) : return SDL_AUDIO_TRACK(0...) or SDL_DATA_TRACK(1...) tracklengthcd(n,t) : return the length of track t cdtracklength(n,t) : return the length of track t trackoffsetcd(n,t) : return the offset to the beginning of this track in frames cdtrackoffset(n,t) : return the offset to the beginning of this track in frames #__________________________________________________________________________________ ______________________________________ # Video Mpeg loadmpeg(fname,usesound) : load a mpeg video plaympeg(optional loop) : play a mpeg1 video stopmpeg() : terminate the video play deletempeg() : unload mpeg video pausempeg() : Pause/Resume playback of an SMPEG object rewindmpeg() : Rewind the play position of an SMPEG object to the beginning of the MPEG seekmpeg(p) : Seek 'bytes' bytes in the MPEG stream skipmpeg(s) : Skip 'seconds' seconds in the MPEG stream statusmpeg() : return 1 if plaympeg work or 0 in other case #__________________________________________________________________________________ _______________________________________ # Keyboard key(keycode) : give 1 if is press the key keycode inkey : give ascii code of key press waitkey(optional keycode) : wait a key pression (0 =any key) #__________________________________________________________________________________ _______________________________________ # Mouse xmouse : give mouse x coordinate on display ymouse : give mouse y coordinate on display mousex : give mouse x coordinate on display
• 15.
  mousey : give mouse y coordinate on display xmousescreen(n) : give mouse x coordinate on screen ymousescreen(n) : give mouse y coordinate on screen mousescreenx(n) : give mouse x coordinate on screen mousescreeny(n) : give mouse y coordinate on screen bmouse : give the buttonclick on the mouse mousebutton : give the buttonclick on the mouse changemouse(optional n) : change mouse from default(0) to emulate with sprite 0 - image 0 (1,2,3)without n return current pointer mousepointer(optional n) : change mouse from default(0) to emulate with sprite 0 - image 0 (1,2,3)without n return current pointer locatemouse(x,y) : move mouse at x y coordinates placemouse(x,y) : move mouse at x y coordinates mouseshow : show the mouse cursor howmouse : show the mouse cursor mousehide : hide the mouse cursor hidemouse : hide the mouse cursor mousezone(x,y,w,h) : give 1 if the mouse pointer is in rectangle(xy with size wh) #__________________________________________________________________________________ _______________________________________ # Joystick numjoysticks : count available joysticks namejoystick(index) : get joystick name numaxesjoystick(i) : get the number of joystick axes numballsjoystick(i) : get the number of joystick trackballs numhatsjoystick(i) : get the number of joystick hats numbuttonsjoystick(i) : get the number of joysitck buttons getaxisjoystick(i,a) : get the current state of an axis gethatjoystick(i,a) : get the current state of a joystick hat getbuttonjoystick(i,a) : get the current state of a given button on a given joystick xgetballjoystick(i,a) : get relative x trackball motion ygetballjoystick(i,a) : get relative y trackball motion joy(i) : return joystick boolean coordinate bjoy(i) : return joystick buttons pressed in boolean expression joybuttons(i) : return joystick buttons pressed in boolean expression fire(i) : return joystick buttons pressed in boolean expression waitbjoy(b,optional i) : wait the pression of a joystick button (or emulate in keyboard) #__________________________________________________________________________________ _______________________________________ # SDLtime wait(t) : wait t milliseconds timer : give the current tick #__________________________________________________________________________________ _______________________________________ # Socket isenabledsock() : return 1 if sdlnet was enabled
• 16.
  sock=getfreesock() : return the first free sock in sdlSocket array sock=OpenSock(port) : Server side socket sock is the stream. in sdlBasic there are 256 stream and sintax is very similar of file open close. clientsock=AcceptSock(serversock) : Accept the client connection IsServerReady(Sock) : True/False if server is sending data sock=ConnectSock(ServerName,port) : client side socket connection *ConnectionReadySock(sock) : the server have accepted the connection IsClientReady(Sock) : True/False if client is sending data CloseSock(sock) : Close the socket connection. Works for client and server *PeekSock(Sock, NumBytes) : Peek information coming from socket, but do not clear. ReadSock(Sock, NumBytes) : Read NumBytes ReadByteSock(Sock) : Read a single byte ReadLineSock(Sock) : Read complete line WriteSock(Sock, Message, NumBytes) : Sends NumBytes from Message WriteByteSock(Sock, Byte) : Sends a single byte WriteLineSock(Sock, Message) : Send Message getremoteip(sock) : return the ip address of remote client connetted getremoteport(sock) : return the port address of remote client connetted ?getlocalip() : return the local ip (not work on windows) #__________________________________________________________________________________ _______________________________________ #