Create player_animations.py

initial commit branch player animations

player_animations.py

@@ -0,0 +1,173 @@
+import time
+import thumby
+import math
+import random
+
+# didplay width 72
+# display height 40
+
+# constants
+CONST_FPS = 60
+CONST_PL_SCREEN_Y =  int((0.5) * thumby.display.height)
+
+CONST_INP_MOVE_LEFT = thumby.buttonL
+CONST_INP_MOVE_RIGHT = thumby.buttonA
+
+# classes
+class Player:
+    def __init__(self):
+        self.xsub = float(thumby.display.width / 2)
+        self.ysub = float(0)
+        self.x = int(self.xsub)
+        self.y = int(self.ysub)
+        
+        self.yspeed = 32 / CONST_FPS
+        self.movespeed = 32 / CONST_FPS
+        self.isRoot = 1
+        
+        self.anim = PlayerAnimation(self.x, self.y)
+        self.debugvisible = True
+        
+    def update_phys(self):
+        inp = int(0)
+        if CONST_INP_MOVE_LEFT.pressed():
+            inp -= 1
+        if CONST_INP_MOVE_RIGHT.pressed():
+            inp += 1
+            
+        # debug visible
+        if thumby.buttonU.pressed():
+            self.debugvisible = not self.debugvisible
+        
+        # clamp to screen
+        self.xsub = max(min(self.xsub + inp * self.movespeed, thumby.display.width), 0)
+        self.ysub += self.yspeed
+        
+        self.x = int(self.xsub)
+        self.y = int(self.ysub)
+        
+        # animation
+        self.anim.update_phys(self.x, self.y, CONST_PL_SCREEN_Y)
+        
+    def update_draw(self, cam):
+        # debug draw
+        if self.debugvisible:
+            thumby.display.setPixel(self.x - cam.x, self.y - cam.y, self.isRoot)
+        
+        # animation
+        self.anim.update_draw(cam, self.isRoot)
+        
+
+class Camera:
+    def __init__(self, target):
+        self.x = int(0)
+        self.y = int(0)
+        self.target = target
+    
+    def update_phys(self, plscreeny):
+        # position player
+        self.y = self.target.y - plscreeny
+
+
+class PlayerAnimation:
+    # width and height of range bounding box
+    RANDOM_RANGE = int(7)
+    POS_RANGE = int(3)
+    POS_X = int(0)
+    POS_Y = int(1)
+    
+    def __init__(self, plworldx, plworldy):
+        self.poslist = [(plworldx, plworldy)]
+        self.debugrandomrange = self.RANDOM_RANGE
+        self.debugposrange = self.POS_RANGE
+    
+    def update_phys(self, plworldx, plworldy, plscreeny):
+        
+        ### exit if player y pos less than random range
+        # # debug change random range
+        # inp = int(0)
+        # if thumby.buttonD.justPressed():
+        #     inp -= 1
+        # if thumby.buttonU.justPressed():
+        #     inp += 1
+            
+        # if inp != 0:
+        #     self.debugposrange = max(self.debugposrange + inp * 2, 1)
+        #     print('debugposrange: ', self.debugposrange)
+            
+        # # if plworldy < self.poslist[-1][self.POS_Y] + random.randint(1, self.debugposrange):
+        # #     return
+        
+        # if plworldy < self.poslist[-1][self.POS_Y] + self.debugposrange:
+        #     return
+            
+        if plworldy < self.poslist[-1][self.POS_Y] + self.POS_RANGE:
+            return
+        
+        ### get new position
+        rad = self.RANDOM_RANGE // 2
+        
+        # # debug change random range
+        # inp = int(0)
+        # if thumby.buttonB.justPressed():
+        #     inp -= 1
+        # if thumby.buttonA.justPressed():
+        #     inp += 1
+            
+        # if inp != 0:
+        #     self.debugrandomrange = max(self.debugrandomrange + inp * 2, 1)
+        #     print('debugrandomrange:', self.debugrandomrange)
+            
+        # rad = max(self.debugrandomrange // 2, 1)
+        
+        # vector int
+        # self.poslist.append((plworldx + random.randrange(-rad, rad), 
+        # plworldy + random.randrange(-rad, rad)))
+        
+        # move last pos
+        self.poslist[-1] = (plworldx + random.randrange(-rad, rad), 
+        plworldy + random.randrange(-rad, rad))
+        
+        # new pos is perfectly on player
+        self.poslist.append((plworldx, plworldy))
+        
+        # # debug
+        # self.poslist.append((plworldx, plworldy))
+        
+        ### remove the fist item in the list if its full line is off screen
+        if self.poslist[1][self.POS_Y] < plworldy - plscreeny:
+            self.poslist.pop(0)
+            
+        #print(len(self.poslist))
+            
+    def update_draw(self, cam,  isRoot=1):
+        ### draw line from first position to next
+        
+        for i in range(len(self.poslist) - 1):
+            thumby.display.drawLine(self.poslist[i][self.POS_X] - cam.x,  self.poslist[i][self.POS_Y] - cam.y, 
+            self.poslist[i + 1][self.POS_X] - cam.x,  self.poslist[i + 1][self.POS_Y] - cam.y, isRoot)
+        
+
+### start
+# Set the FPS (without this call, the default fps is 30)
+thumby.display.setFPS(CONST_FPS)
+
+pl = Player()
+cam = Camera(pl)
+
+print("game ready")
+
+
+### game loop
+while(True):
+    t0 = time.ticks_ms()   # Get time (ms)
+    thumby.display.fill(0) # Fill canvas to black
+    
+    # update physics
+    pl.update_phys()
+    cam.update_phys(CONST_PL_SCREEN_Y)
+    
+    # update drawing
+    pl.update_draw(cam)
+    
+    thumby.display.update()