Game Manager

merge of game manager,  Gameloop and player animation. Animation is brocken.

Throot.py

@@ -0,0 +1,131 @@
+import time
+import math
+
+import thumby
+
+import Games.Throot.map
+import Games.Throot.sprites
+
+from random import randrange
+from Games.Throot.artrepository import OBSTACLES
+from Games.Throot.player import Player
+from Games.Throot.map import ObstacleSlice, OBSTACLE_SLICES
+from Games.Throot.sprites import update_entities
+from Games.Throot.constants import CONST_FPS
+
+class GameManager:
+    EVENT_ROOM_CHANGE = {'start': 0, 'main': 1, 'end': 2, 'next': -1}
+    
+    def __init__(self, *rooms):
+         self.rooms = rooms
+         self.room_index = 0
+
+    def start(self):
+        # Set the FPS (without this call, the default fps is 30)
+        thumby.display.setFPS(CONST_FPS)
+
+    def room_goto(self, index):
+        if index < 0:
+            self.room_index = min(self.room_index + 1, len(self.rooms))
+        else:
+            self.room_index = index
+            
+        self.rooms[self.room_index].start()
+
+    def restart(self):
+        self.room_index = 0
+        
+    def update(self, tpf):
+        event = self.rooms[self.room_index].update(tpf)
+        
+        thumby.display.update()
+        
+        if event:
+            self.room_goto(self.EVENT_ROOM_CHANGE[event])
+        
+
+class Room:
+    def start(self):
+        t0 = time.ticks_ms()   # Get time (ms)
+        thumby.display.fill(0) # Fill canvas to black
+    
+    def update(self, tpf):
+        pass
+
+
+class RoomTitle(Room):
+    def update(self, tpf):
+        super().update(tpf)
+        
+        if thumby.inputPressed():
+            return 'main'
+        
+        # draw title sprite
+        title_text = 'press a to start'
+        
+        chr_len = 5
+        x = int(round(thumby.display.width / 2 - (chr_len * len(title_text)) / 2))
+        y = int(round(thumby.display.height / 2 - chr_len / 2))
+        
+        buff = 2
+        w = chr_len * len(title_text) + buff
+        h = chr_len + buff
+        thumby.display.drawFilledRectangle(x - buff, y - buff, w, h, 1)
+        thumby.display.drawText(title_text, x, y, 0)
+        
+class GameLoop(Room):
+    def __init__(self):
+        self.current_depth = 0
+        self.diving_velocity = 10
+        self.diving_accel = 0
+        self.current_obstacle_slice = OBSTACLE_SLICES[0]
+        self.entities = set()
+
+        self.player = Player()
+
+    def get_obstacle_slice(self):
+        return OBSTACLE_SLICES[randrange(0, len(OBSTACLE_SLICES))]
+
+    def update(self, tpf):
+        """
+        Executes one tick of the game
+        """
+        super().update(tpf)
+        prev_depth = self.current_depth
+        self.diving_velocity += self.diving_accel * tpf
+        self.current_depth += self.diving_velocity * tpf
+
+        if self.current_depth % ObstacleSlice.height < prev_depth % ObstacleSlice.height:
+            self.current_obstacle_slice = self.get_obstacle_slice()
+
+        self.player.update_phys(self.current_depth, prev_depth)
+
+        # Generate new entities as needed
+        self.entities |= update_entities(self.current_obstacle_slice, self.current_depth, prev_depth)
+
+        # Updates the entities
+        to_remove = set()
+        for entity in self.entities:
+            if not entity.update(tpf, self.current_depth, prev_depth):
+                to_remove.add(entity)
+        self.entities -= to_remove
+
+        thumby.display.fill(0)
+        # Draw the entities
+        for entity in self.entities:
+            entity.render(tpf, self.current_depth, prev_depth)
+        self.player.update_draw(self.current_depth, prev_depth)
+
+def main():    
+    game = GameManager(RoomTitle(), GameLoop())
+    game.start()
+
+    prev_time = 0
+    while True:
+        t0 = time.ticks_ms()
+        tps = (t0 - prev_time) / 1000
+        #loop.update(tps)
+        game.update(tps)
+        prev_time = t0
+
+main()

artrepository.py

@@ -1,4 +1,4 @@
-from collections.namedtuple
+from collections import namedtuple
 
 SpriteImage = namedtuple("SpriteImage", ["image", "collision", "width", "height"])
 
@@ -130,7 +130,7 @@ leaf = SpriteImage(
     16
 )
 
-UNDERGROUND_OBSTACLES = [skull, pizza, boulder, ball, steve, mathroot, robot, dinoskull, dinojaw, dinospine, bone, bigdinohead, bigboneddiag, bigdoritotoobstacle]
+UNDERGROUND_OBSTACLES = [skull, pizza, boulder, ball, steve, mathroot, robot, dinoskull, dinojaw, dinospine, bone, bigdinohead, bigboneddiag, bigdoritoobstacle]
-OVERGROUND_OBSTACLES = [spaveinv, spaceinv2, leaf]
+OVERGROUND_OBSTACLES = [spaceinv, spaceinv2, leaf]
 
 OBSTACLES = UNDERGROUND_OBSTACLES + OVERGROUND_OBSTACLES

constants.py

@@ -0,0 +1 @@
+CONST_FPS = 60

map.py

@@ -0,0 +1,37 @@
+import thumby
+
+class ObstacleSlice:
+    """
+    The game world is divided up into distinct "slices," where each slice is a predefined set of
+    obstacles in specific positions. These slices are then put forward in random order
+    """
+
+    """
+    How many units an obstacle slice is high
+    """
+    height=max(80, thumby.display.height * 2)
+    
+    def __init__(self, obstacle_map, difficulty: int):
+        """
+        Creates an obstacle slice
+
+        :param obstacle_map:
+            A two-dimensional list description what obstacles are here. Each tuple describes a
+            single obstacle, its x, and y position, the obstacle type, the x mirror, and the y
+            mirror.
+        :param difficulty:
+            The difficulty of the game. This influences when this slice appears.
+        """
+        self.obstacle_map = obstacle_map
+        self.difficulty = difficulty
+
+OBSTACLE_SLICES = [
+    ObstacleSlice(
+        [
+            (10, 0, 0, 0, 0),
+            (53, 30, 1, 0, 0),
+            (5, 45, 0, 0, 0)
+        ],
+        0
+    )
+]

player.py

@@ -3,11 +3,12 @@ import thumby
 import math
 import random
 
+from Games.Throot.constants import CONST_FPS
+
 # 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
@@ -21,14 +22,18 @@ class Player:
         self.x = int(self.xsub)
         self.y = int(self.ysub)
         
-        self.yspeed = 32 / CONST_FPS
         self.movespeed = 32 / CONST_FPS
-        self.isRoot = 1
+        self.isdecend = 1
+        
+        self.xspeed = 32 / CONST_FPS
+        self.yspeed = 32 / CONST_FPS
+        self.accx = 1 / (CONST_FPS * 4)
+        self.accaccx = self.accx
         
         self.anim = PlayerAnimation(self.x, self.y)
         self.debugvisible = True
         
-    def update_phys(self):
+    def update_phys(self, current_depth, prev_depth):
         inp = int(0)
         if CONST_INP_MOVE_LEFT.pressed():
             inp -= 1
@@ -39,23 +44,38 @@ class Player:
         if thumby.buttonU.pressed():
             self.debugvisible = not self.debugvisible
         
-        # clamp to screen
+        ### x movement
-        self.xsub = max(min(self.xsub + inp * self.movespeed, thumby.display.width), 0)
+        self.xspeed += self.accx
-        self.ysub += self.yspeed
+        self.accx += self.accaccx
         
+        if (inp == 0) and (self.xspeed > self.movespeed):
+            self.xspeed = self.movespeed
+            self.accx = self.accaccx
+        
+        xx = self.xsub + inp * self.xspeed
+        
+        # clamp to screen
+        self.xsub = max(min(xx, thumby.display.width - 1), 0)
+        
+        ### y movement
+        self.ysub = current_depth - (thumby.display.height / 2)
+        
+        ### pixel positions
         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):
+    def update_draw(self, current_depth, prev_depth):
         # debug draw
         if self.debugvisible:
-            thumby.display.setPixel(self.x - cam.x, self.y - cam.y, self.isRoot)
+            pix_x = self.x
+            pix_y = int(current_depth - self.y)
+            thumby.display.setPixel(pix_x, pix_y, self.isdecend)
         
         # animation
-        self.anim.update_draw(cam, self.isRoot)
+        self.anim.update_draw(current_depth, prev_depth, self.isdecend)
         
 
 class Camera:
@@ -125,8 +145,10 @@ class PlayerAnimation:
         # plworldy + random.randrange(-rad, rad)))
         
         # move last pos
-        self.poslist[-1] = (plworldx + random.randrange(-rad, rad), 
+        self.poslist[-1] = (
-        plworldy + random.randrange(-rad, rad))
+            plworldx + random.randrange(-rad, rad), 
+            plworldy + random.randrange(-rad, rad)
+        )
         
         # new pos is perfectly on player
         self.poslist.append((plworldx, plworldy))
@@ -135,39 +157,19 @@ class PlayerAnimation:
         # 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:
+        #if self.poslist[1][self.POS_Y] < plworldy - plscreeny:
-            self.poslist.pop(0)
+        #    self.poslist.pop(0)
             
         #print(len(self.poslist))
             
-    def update_draw(self, cam,  isRoot=1):
+    def update_draw(self, current_depth, prev_depth, isdecend=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, 
+            thumby.display.drawLine(
-            self.poslist[i + 1][self.POS_X] - cam.x,  self.poslist[i + 1][self.POS_Y] - cam.y, isRoot)
+                int(self.poslist[i][self.POS_X]),
-        
+                int(current_depth - self.poslist[i][self.POS_Y]), 
-
+                int(self.poslist[i + 1][self.POS_X]),
-### start
+                int(current_depth - self.poslist[i + 1][self.POS_Y]),
-# Set the FPS (without this call, the default fps is 30)
+                isdecend
-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()

sprites.py

@@ -0,0 +1,137 @@
+from random import randint
+
+import thumby
+
+from Games.Throot.map import ObstacleSlice
+from Games.Throot.artrepository import OBSTACLES
+
+class Entity:
+    """
+    An entity exists within the game world. It has coordinates, bounds, and optionally collision and sprite
+    """
+    def __init__(self, x: int = 0, y: int = 0, width: int = 8, height: int = 8, collision: bytearray = None, sprite: thumby.Sprite = None):
+        self.x = x
+        self.y = y
+        self.sprite = sprite
+        self.collision = collision
+        self.width = width
+        self.height = height
+
+    def intersects_pixel(self, loc_x: int, loc_y: int) -> bool:
+        """
+        Checks to see if this entity intersects a location in the game world.
+
+        :param loc_x:
+            An global x location within the game world.
+        :param loc_y:
+            A global y position within the game world.
+        :return:
+            True if the collision shape of this entity intersects a point in the world,
+            False otherwise.
+        """
+        if not self.collision:
+            return False
+        if loc_x < self.x or loc_x >= self.x + self.width or loc_y < self.y or loc_y >= self.y + self.height:
+            return False
+        rel_x = loc_x - self.x
+        rel_y = loc_y - self.y
+        return bool((self.collision[rel_x] >> (self.height - rel_y)) & 1)
+
+    def can_render(self, current_depth: int) -> bool:
+        """
+        Checks to see if this sprite is within the game screen.
+
+        :param current_depth:
+            The current depth, as measured from the top of the screen. We can display anything
+            up to the screen height down from this number.
+
+        :return:
+            True if the sprite shows up on screen in any capacity, false otherwise.
+        """
+        if self.x < -self.width or self.x >= thumby.display.width:
+            return False
+        max = current_depth
+        min = max - thumby.display.height
+        if self.y < (min - self.height) or self.y > max:
+            return False
+        return True
+
+    def update(self, tpf: float, current_depth: int, prev_depth: int) -> bool:
+        """
+        Updates the state of the entity based on the game state.
+
+        :param tpf:
+            The number of seconds since the last tick.
+        :param current_depth:
+            The current depth the game is on.
+        :param prev_depth:
+            The depth the game was on last tick.
+
+        :return:
+            True if the game should keep this entity, false if the game should drop
+            this entity from memory.
+        """
+        return False
+
+    def render(self, tpf: float, current_depth: int, prev_depth: int) -> bool:
+        """
+        Sets the position of the sprite and draws it.
+        
+        :param tpf:
+            The number of seconds since the last tick.
+        :param current_depth:
+            The current depth the game is on.
+        :param prev_depth:
+            The depth the game was on last tick.
+
+        :return:
+            True if the game should actually draw the sprite, false the sprite
+            should be hidden.
+        """
+        if self.sprite:
+            self.sprite.y = int(self.y - current_depth + thumby.display.height)
+            self.sprite.x = int(self.x)
+            if self.can_render(current_depth):
+                thumby.display.drawSprite(self.sprite)
+                return True
+        return False
+
+class Obstacle(Entity):    
+    def update(self, tpf: float, current_depth: int, prev_depth: int) -> bool:
+        return self.can_render(current_depth)
+
+
+def update_entities(current_slice: ObstacleSlice, current_depth: int, prev_depth: int):
+    """
+    Checks the current game state and generates new sprites based on said state.
+
+    :param current_slice:
+        The current obstacle slice we are using. Once the bottom of the slice displays, we switch
+        to a new slice.
+    :param current_depth:
+        The global world depth we are at. This is modulused by the slice height to determine how
+        far through the slice we are.
+    :param prev_depth:
+        The depth we were at during the last tick. This helps make sure we don't miss spawning
+        entities
+
+    :return:
+        A list of entities to generate this tick.
+    """
+    if current_depth == prev_depth:
+        # If we haven't moved, we don't need to spawn anything
+        return set()
+    # Local y relative to the top of the slice
+    slice_y = (current_depth) % ObstacleSlice.height
+    slice_prev_y = (prev_depth) % ObstacleSlice.height
+    if slice_prev_y > slice_y:
+        slice_prev_y -= ObstacleSlice.height
+    spawned = set()
+    for entity in current_slice.obstacle_map:
+        # The position the entity should spawn at, relative to the slice top
+        entity_y = entity[1]
+        if entity_y >= slice_prev_y and entity_y < slice_y:
+            sprite_image = OBSTACLES[entity[2]]
+            sprite = thumby.Sprite(sprite_image.width, sprite_image.height, sprite_image.image, 0, 0, 0, entity[3], entity[4])
+            spawned.add(Obstacle(entity[0], entity_y + current_depth // ObstacleSlice.height * ObstacleSlice.height, sprite_image.width, sprite_image.height, sprite_image.collision, sprite))
+    return spawned