cleaned up some stuff and added Documentation in README.md

.gitignore

@@ -53,3 +53,4 @@ env.bak
 venv.bak
 pyvenv.cfg
 bin
+__pycache__

README.md

@@ -1,7 +1,124 @@
-# Pyterm Render
+# Python Term Render
-A quick to use framework for making terminal based graphics in python.
+A quick to use and dead simple framework for making terminal based graphics in python.
 
 ```
-python3 -m venv .
+example_music.py
-pip install -r requirements.txt
+################################################################
+# FPS: 29.866  Frame: 251            Sample: Wavtapper - Frums #
+# [3, 3, 7, 14, 29, 59]                                        #
+================================================================
+1234567890123456789012345678901234567890123456789012345678901234
+0        1     |   2         3 |       4       | 5         6    
+                                                           $    
+X            X          X       X       X   X                   
+                                                    X   Y  Z Z  
+#                                                              #
+################################################################
+```
+
+## Quick start
+```
+python3 -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt
+python3 example.py
+```
+
+## Usage
+Programs take the following form,
+```
+from pytermrender import *
+from colorama import Fore, Back, Style
+
+Screen = TermScreen(height=24, width=80, framerate=30) # Screen must be defined
+
+def setup():
+    print("Setup")
+    print("Clearing")
+    clearScreen()
+
+
+def teardown():
+    clearScreen()
+    print("Teardown")
+    print("Teardown Complete")
+
+def tick():
+    Screen.frame_no+=1
+
+def draw():
+    clearScreen()
+    clearAllBuffers()
+    frame = Screen.frame_no
+
+    drawBox(0,0,Screen.width,Screen.height,'#')
+    printBuffer(1,1,str(Screen.framerate)+'fps -'+str(frame)+'-')
+    for ix, c in enumerate(str(frame)):
+        putBuffer(8+ix,1, Fore.BLUE, buffer="color")
+
+run()
+```
+import everything from the pytermrender lib and define setup, teardown, tick, and draw. then just call run().
+
+The setup function is called on program start, and teardown is called on Ctrl+c.
+
+The tick function is called every frame before the draw function.
+It can be used to do the program logic.
+
+The draw function is called after the tick function and is where the program should actually manipulate the screen buffers.
+As of now, there are only two buffers, "char" and "color".
+Both of these buffers get printed to the screen every frame.
+Use the char buffer for printable characters and the color buffer for non-printable characters, like ANSI char sequences.
+
+
+## Library Reference
+Pytermrender provides several library functions for quick usage:
+```
+clearScreen():
+  | Clear the terminal
+
+clearAllBuffers():
+  | Clear all buffers
+
+clearBuffer(buffer="char"):
+  | Clear a specific buffer
+  | buffer can be one of [ "char", "color" ]
+
+clearLine(y, buffer="char"):
+  | Clear a line of a buffer
+  | buffer can be one of [ "char", "color" ]
+
+putBuffer(x, y, char, *, buffer="char"):
+  | Put a char into a specific location in a buffer
+  | buffer can be one of [ "char", "color" ]
+  | NOTE: multi-char strings can be used, but can cause unintended results
+  |   If you want to put multi-char strings, use printBuffer
+
+printBuffer(x, y, string):
+  | Print a string into the char buffer
+
+drawBox(x, y, width, height, char):
+  | Draw a box in the char buffer with the supplied char
+```
+
+
+Pytermrender also provides a convienent way to store state inside the Screen object.
+```
+Screen.tickers
+  | a dictionary to store variables that change every frame.
+Screen.state
+  | a dictionary to store variaiables that are more static.
+```
+Example usage as follows:
+```
+tick():
+    global Screen
+    Screen.tickers["music"][0]=(Screen.frame_no//BEAT_SUB)//4
+    Screen.state["cursorActive"]=True
+
+draw():
+    bar=Screen.tickers["music"][0]
+    cursorActive=Screen.state["cursorActive"]
+    if cursorActive:
+        putBuffer(0, 0, "$")
 ```

example.py

@@ -1,28 +1,38 @@
 from pytermrender import *
+from colorama import Fore, Back, Style
+
 Screen = TermScreen(height=24, width=80, framerate=30)
 
-#not strictly needed, but useful
-def tick():
-    Screen.frame_no+=1
 
 def setup():
     print("Setup")
     print("Clearing")
     clearScreen()
-    pass
+    return
 
 
 def teardown():
+    clearScreen()
     print("Teardown")
     print("Teardown Complete")
-    pass
+    return
 
 
+#not strictly needed, but useful
+def tick():
+    Screen.frame_no+=1
+    return
+
 def draw():
     clearScreen()
     clearAllBuffers()
+    frame = Screen.frame_no
+
     drawBox(0,0,Screen.width,Screen.height,'#')
-    printBuffer(1,1,str(Screen.framerate)+'fps '+str(Screen.frame_no))
+    printBuffer(1,1,str(Screen.framerate)+'fps -'+str(frame)+'-')
+    for ix, c in enumerate(str(frame)):
+        putBuffer(8+ix,1, Fore.BLUE, buffer="color")
+    return
 
 
 run()

example2.py

@@ -1,59 +0,0 @@
-from pytermrender import *
-from colorama import Fore, Back, Style
-
-BPM=112
-BEAT_SUB=16
-FRAMERATE=(BPM*BEAT_SUB/60)
-
-Screen = TermScreen(height=24, width=64, framerate=FRAMERATE)
-
-cursorX=1
-cooldown=0
-def tick():
-    global cursorX,cooldown
-    Screen.frame_no+=1
-    cursorX=cursorX+1
-    if cursorX >= Screen.width-1:
-        cursorX=0
-    if cursorX % 12 == 0:
-        cooldown=8
-    else:
-        cooldown-=1
-    return
-        
-
-def setup():
-    print("Setup")
-    print("Clearing")
-    clearScreen()
-    return
-
-
-def teardown():
-    print("Teardown")
-    print("Teardown Complete")
-    return
-
-
-def draw():
-    clearScreen()
-    clearAllBuffers()
-    for y in range(Screen.height):
-        for x in range(Screen.width):
-            if x == 0 or x == Screen.width-1:
-                Screen.buffer_char[y][x]='#'
-            if y == 0 or y == Screen.height-1:
-                Screen.buffer_char[y][x]='#'
-    printBuffer(0,3,"1234567890123456789012345678901234567890123456789012345678901234")
-    printBuffer(0,4,"0        1         2         3         4         5         6    ")
-    #printBuffer(0,4,"2   6   8   6   4   6   8   6   2   6   8   6   4   6   8   6   ")
-    clearLine(5)
-    Screen.buffer_char[5][cursorX] = "x"
-    if cooldown > 0:
-        Screen.buffer_color[5][cursorX] = Fore.RED
-
-    printBuffer(1,1,Screen.frame_no)
-    printBuffer(8,1,Screen.framerate)
-
-
-run()

example_music.py

@@ -0,0 +1,95 @@
+from pytermrender import *
+from colorama import Fore, Back, Style
+from just_playback import Playback
+import math
+
+BPM=112
+BEAT_SUB=16
+FRAMERATE=(BPM*BEAT_SUB/60)
+
+Screen = TermScreen(height=20, width=64, framerate=FRAMERATE)
+playback = Playback()
+
+def setup():
+    global Screen
+    print("Setup")
+    playback.load_file('media/WavetapperSample.wav')
+    playback.loop_at_end(True)
+    playback.play()
+    playback.set_volume(0.5)
+    Screen.tickers["music"] = {}
+    print("Clearing Screen")
+    clearScreen()
+    return
+
+def teardown():
+    clearScreen();
+    print("Teardown")
+    print("Stopping Playback")
+    playback.stop()
+    print("Teardown Complete")
+    return
+
+def tick():
+    global Screen
+    Screen.frame_no+=1
+    Screen.tickers["music"][0]=(Screen.frame_no//BEAT_SUB)//4       # bar
+    Screen.tickers["music"][1]=(Screen.frame_no//BEAT_SUB//1)%4     # beat
+    Screen.tickers["music"][2]=(Screen.frame_no//(BEAT_SUB//2))%8   # 8th
+    Screen.tickers["music"][3]=(Screen.frame_no//(BEAT_SUB//4))%16  # 16th
+    Screen.tickers["music"][4]=(Screen.frame_no//(BEAT_SUB//8))%32  # 32nd
+    Screen.tickers["music"][5]=(Screen.frame_no//(BEAT_SUB//16))%64 # 64th
+
+    Screen.state["cursorX"]=Screen.tickers["music"][5]
+    
+    if Screen.tickers["music"][1] in [0,2]:
+        Screen.state["cursorActive"]=True
+    else:
+        Screen.state["cursorActive"]=False
+    return
+
+def draw():
+    clearScreen()
+    clearAllBuffers()
+    
+    cursorX=Screen.state["cursorX"]
+    cursorActive=Screen.state["cursorActive"]
+    bar=Screen.tickers["music"][0]
+    
+    drawBox(0,0, Screen.width,Screen.height, '#')
+    
+    printBuffer(2,  1, "FPS: "+str(Screen.framerate)[:6])
+    printBuffer(15, 1, "Frame: "+str(Screen.frame_no))
+    printBuffer(37, 1, "Sample: Wavtapper - Frums")
+    printBuffer(2,  2, [x for x in Screen.tickers["music"].values()])
+    printBuffer(0,  3, "="*Screen.width)
+    
+    printBuffer(0,  4, "1234567890123456789012345678901234567890123456789012345678901234")
+    printBuffer(0,  5, "0        1     |   2         3 |       4       | 5         6    ")
+    
+    clearLine(6)
+    putBuffer(cursorX, 6, "$")
+    if cursorActive:
+        putBuffer(cursorX, 6, Fore.GREEN, buffer="color")
+    
+    clearLine(7)
+    printBuffer(0,7,"X            X          X       X       X   X")
+    
+    clearLine(8)
+    match bar % 4:
+        case 0:
+            printBuffer(52,8,"X")
+        case 1:
+            printBuffer(52,8,"X   Y")
+        case 2:
+            printBuffer(52,8,"X")
+        case 3:
+            printBuffer(52,8,"X   Y  Z Z")
+    
+    for ix in range(cursorX):
+        putBuffer(ix, 7, Fore.RED,  buffer="color")
+        putBuffer(ix, 8, Fore.BLUE, buffer="color")
+    
+    return
+
+run()

pytermrender.py

@@ -1,17 +1,12 @@
-import __main__
+import __main__, time, math, functools
-import time, math
+from colorama import Style
-from colorama import Fore, Back, Style
-import functools
-#from dataclasses import dataclass
-printr = functools.partial(print, end="")
 
 ## Definitions
-
+printr = functools.partial(print, end="")
 
 class RenderException(Exception):
     pass
 
-
 class TermScreen:
     width: int
     height: int
@@ -19,12 +14,15 @@ class TermScreen:
     frame_no: int = 0
     buffers: list = ["char", "color"]
     tickers: dict
+    state: dict
     def __init__(self, *, width: int = 80, height: int = 24, framerate: float = 30.0):
         self.width=width
         self.height=height
         self.framerate=framerate
         self.buffer_char  = [[" "]*self.width for i in range(self.height)]
         self.buffer_color = [[Style.RESET_ALL]*self.width for i in range(self.height)]
+        self.tickers = {}
+        self.state = {}
         return
     
     def reset_buffer(self, buffer="char"):
@@ -37,6 +35,31 @@ class TermScreen:
                 self.buffer_color = [[Style.RESET_ALL]*self.width for i in range(self.height)]
         return
     
+    def reset_buffer_line(self, line=0, buffer="char"):
+        if buffer not in self.buffers:
+            raise RenderException("Buffer Does not exist")
+        if line >= self.height:
+            raise RenderException("Line is out of range of height")
+        match buffer:
+            case "char":
+                self.buffer_char[line]  = [" "]*self.width
+            case "color":
+                self.buffer_color[line] = [Style.RESET_ALL]*self.width
+        return
+
+    def put_buffer(self, x, y, val, buffer="char"):
+        if buffer not in self.buffers:
+            raise RenderException("Buffer Does not exist")
+        if x >= self.width or y >= self.height:
+            raise RenderException("Point is out of range of the buffer")
+        char=str(val)
+        match buffer:
+            case "char":
+                self.buffer_char[y][x]  = char
+            case "color":
+                self.buffer_color[y][x]  = char
+        return
+
     def render(self):
         for y in range(self.height):
             for x in range(self.width):
@@ -45,6 +68,9 @@ class TermScreen:
             print() #print \n
         return
 
+
+
+
 def framerateMaker(func, perSec):
     interval = 1.0 / perSec
     while True:
@@ -66,11 +92,11 @@ def renderLoop():
 ## Library Functions
 
 def clearScreen():
-    printr('\033[2J')
+    printr('\033[2J\r')
 
-def clearBuffer(buf="char"):
+def clearBuffer(buffer=TermScreen.buffers[0]):
     global Screen
-    Screen.reset_buffer(buf)
+    Screen.reset_buffer(buffer)
     return
 
 def clearAllBuffers():
@@ -79,19 +105,28 @@ def clearAllBuffers():
         Screen.reset_buffer(buf)
     return
 
+def clearLine(y, buffer=TermScreen.buffers[0]):
+    global Screen
+    Screen.reset_buffer_line(y, buffer)
+    return
+
+def putBuffer(x, y, val, *, buffer=TermScreen.buffers[0]):
+    global Screen
+    Screen.put_buffer(x, y, val, buffer)
+    return
+
 def printBuffer(x, y, val):
+    """ Print a string into the char buffer """
     global Screen
     string=str(val)
     if len(string) > Screen.width-x:
         raise RenderException("Too Long to fit in screen")
     for i, char in enumerate(string):
         Screen.buffer_char[y][x+i]=char
-
+    return
-def clearLine(y):
-    global Screen
-    Screen.buffer_char[y]=[" "]*Screen.width
 
 def drawBox(x,y,width,height,char):
+    """ Draw a box in the char buffer """
     global Screen
     if x+width > Screen.width or y+height > Screen.height:
         raise RenderException("Box too BIG")
@@ -99,17 +134,16 @@ def drawBox(x,y,width,height,char):
         for w_y in range(height):
             if (w_x==0 or w_x==width-1) or (w_y==0 or w_y==height-1):
                 Screen.buffer_char[y+w_y][x+w_x] = char
+    return
 
 ####################
 
-
-
 def tick():
     global Screen
     Screen.frame_no+=1
 
 def setup():
-    print("Setup")
+    print("Default Setup")
     clearScreen()
     clearAllBuffers()
     return

termrender_audio.py

@@ -1,144 +0,0 @@
-import time
-import math
-import functools
-printr = functools.partial(print, end="")
-
-from just_playback import Playback
-playback = Playback()
-
-from colorama import Fore, Back, Style
-
-###############
-BPM=112
-BEAT_SUB=16
-
-FRAMERATE=(BPM*BEAT_SUB/60)
-HEIGHT=24
-WIDTH=64
-###############
-FRAME_NO=0
-MUSIC_TIME=[0 for i in range(int(math.log2(BEAT_SUB)))]
-###############
-
-def clearBuffer():
-    global screen_buffer,screen_buffer_color
-    screen_buffer = [[" "]*WIDTH for y in range(HEIGHT)]
-def clearBufferColor():
-    global screen_buffer,screen_buffer_color
-    screen_buffer_color = [[Style.RESET_ALL]*WIDTH for y in range(HEIGHT)]
-def clearAllBuffers():
-    clearBuffer()
-    clearBufferColor()
-def clearScreen():
-    printr('\033[2J')
-def render(clear=True):
-    if clear:
-        clearScreen()
-    for y in range(HEIGHT):
-        for x in range(WIDTH):
-            printr(screen_buffer_color[y][x])
-            printr(screen_buffer[y][x])
-        print() #print \n
-
-def renderLoop():
-    trackers()
-    draw()
-    render()
-
-def framerateMaker(func, perSec):
-    interval = 1.0 / perSec
-    while True:
-        start_time = time.time()
-        func()
-        elapsed = time.time() - start_time
-        if elapsed < interval:
-            time.sleep(interval-elapsed)
-
-################
-
-def printBuffer(x, y, val):
-    global screen_buffer
-    string=str(val)
-    if len(string) > WIDTH-x:
-        return
-    for i, l in enumerate(string):
-        screen_buffer[y][x+i]=l
-    pass
-
-def clearLine(y):
-    global screen_buffer
-    screen_buffer[y]=[" "]*WIDTH
-    pass
-
-
-####################
-def trackers():
-    global FRAME_NO
-    global MUSIC_TIME
-    FRAME_NO+=1
-    MUSIC_TIME[0]=(FRAME_NO//BEAT_SUB)//4
-    MUSIC_TIME[1]=(FRAME_NO//BEAT_SUB//1)%4
-    MUSIC_TIME[2]=(FRAME_NO//(BEAT_SUB//2))%8
-    MUSIC_TIME[3]=(FRAME_NO//(BEAT_SUB//4))%16
-    #MUSIC_TIME[1]=(FRAME_NO//(BEAT_SUB*int(math.log2(BEAT_SUB//8))))%4
-#    MUSIC_TIME[2]=(FRAME_NO//8)%8
-#    for i in range(len(MUSIC_TIME)):
-#        MUSIC_TIME[i]=(FRAME_NO//2**(i+1)) % 2**(i)
-
-def main():
-    setup()
-    try:
-        framerateMaker(renderLoop, FRAMERATE)
-        pass
-    except KeyboardInterrupt:
-        pass
-    teardown()
-
-
-
-def setup():
-    global playback
-    print("Setup")
-    print("Clearing")
-    clearScreen()
-    clearAllBuffers()
-    #playback.load_file('')
-    #playback.play()
-
-
-def teardown():
-    print("Teardown")
-    print("Stopping Playback")
-    #playback.stop()
-    print("Teardown Complete")
-    pass
-
-
-cursorX=1
-cooldown=[0]*4*4
-def draw():
-    global screen_buffer,screen_buffer_color
-    global MUSIC_TIME
-    global cursorX,cooldown
-    clearAllBuffers()
-    for y in range(HEIGHT):
-        for x in range(WIDTH):
-            if x == 0 or x == WIDTH-1:
-                screen_buffer[y][x]='#'
-            if y == 0 or y == HEIGHT-1:
-                screen_buffer[y][x]='#'
-    printBuffer(0,3,"1234567890123456789012345678901234567890123456789012345678901234")
-    printBuffer(0,4,"0        1         2         3         4         5         6    ")
-    clearLine(5)
-    if cursorX >= WIDTH:
-        cursorX=0
-    screen_buffer[5][cursorX] = "x"
-
-    printBuffer(1,1,FRAME_NO)
-    printBuffer(6,1,FRAMERATE)
-    printBuffer(1,2,MUSIC_TIME)
-    cursorX=cursorX+1
-
-
-if __name__ == "__main__":
-    main()