Refines the difficulty curve.

More random, less level design needed.

Throot.py

@@ -8,12 +8,14 @@ import Games.Throot.sprites
 
 from random import randrange
 from Games.Throot.artrepository import OBSTACLES
-from Games.Throot.player import Player, Camera
+from Games.Throot.player import Player
 from Games.Throot.map import ObstacleSlice, OBSTACLE_SLICES
 from Games.Throot.sprites import Obstacle, update_entities
-from Games.Throot.constants import *
+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
@@ -22,14 +24,13 @@ class GameManager:
         # Set the FPS (without this call, the default fps is 30)
         thumby.display.setFPS(CONST_FPS)
 
-    def room_goto(self, event):
+    def room_goto(self, index):
-        index = event['room']
         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(event)
+        self.rooms[self.room_index].start()
 
     def restart(self):
         self.room_index = 0
@@ -40,11 +41,11 @@ class GameManager:
         thumby.display.update()
         
         if event:
-            self.room_goto(event)
+            self.room_goto(self.EVENT_ROOM_CHANGE[event])
         
 
 class Room:
-    def start(self, event):
+    def start(self):
         t0 = time.ticks_ms()   # Get time (ms)
         thumby.display.fill(0) # Fill canvas to black
     
@@ -57,9 +58,7 @@ class RoomTitle(Room):
         super().update(tpf)
         
         if thumby.inputPressed():
-            return {
+            return 'main'
-                'room': ROOM_MAIN
-            }
         
         # draw title sprite
         title_text = 'press a to start'
@@ -82,19 +81,9 @@ class GameLoop(Room):
         self.current_obstacle_slice = OBSTACLE_SLICES[0]
         self.entities = set()
 
-        self.player = None
-        self.camera = None
-        
-        self.score = 0
-    
-    def start(self, event):
-        self.current_depth = 0
-        self.entities.clear()
-        self.current_obstacle_slice = OBSTACLE_SLICES[0]
         self.player = Player()
-        self.player.yspeed = 10
+        
         self.score = 0
-        self.camera = Camera(self.player)
 
     def get_obstacle_slice(self):
         return OBSTACLE_SLICES[randrange(0, len(OBSTACLE_SLICES))]
@@ -104,59 +93,47 @@ class GameLoop(Room):
         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
         
-        self.player.update_phys(tpf, self.camera)
+        #print("%f (%f)" % (self.current_depth, self.current_depth % ObstacleSlice.height))
 
-        self.camera.update_phys()
+        #print("%f -> %f: %f -> %f" % (prev_depth, self.current_depth, prev_depth % ObstacleSlice.height, self.current_depth % ObstacleSlice.height))
+        if (
+            self.current_depth > prev_depth and self.current_depth % ObstacleSlice.height < prev_depth % ObstacleSlice.height
+            or self.current_depth < prev_depth and 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.entities, 5, self.player.ysub, self.player.prev_y)
+        self.entities |= update_entities(self.entities, 5, self.current_depth, prev_depth)
 
         # Updates the entities
         to_remove = set()
         for entity in self.entities:
-            if not entity.update(tpf, self.player, self.camera) or abs(entity.y - self.player.y) > self.camera.height * 1.5:
+            if not entity.update(tpf, self.current_depth, prev_depth):
                 to_remove.add(entity)
             elif entity.intersects_pixel(self.player.xsub, self.player.ysub):
                 if isinstance(entity, Obstacle):
-                    return {
+                    print("Hit!")
-                        'room': ROOM_END,
-                        'score': self.score
-                    }
         self.entities -= to_remove
         
-        self.score = self.player.x#int(abs(self.player.y) * 10)
+        self.score = int(self.current_depth * 10)
 
         thumby.display.fill(0)
         # Draw the entities
         for entity in self.entities:
-            entity.render(tpf, self.camera)
+            entity.render(tpf, self.current_depth, prev_depth)
-        self.player.update_draw(self.camera)
+        self.player.update_draw(self.player.y)
 
         thumby.display.drawText(str(self.score), thumby.display.width - (len(str(self.score)) + 2) * 5, 1, 1)
-        
+        thumby.display.update()
-class EndRoom(Room):
-    def __init__(self):
-        self.score = 0
-    
-    def start(self, event):
-        self.score = event['score']
-        # Used to make sure that we aren't triggering from input mean't for the game.
-        self.still_pressed = thumby.inputPressed()
-    
-    def update(self, tpf):
-        if not thumby.inputPressed():
-            self.still_pressed = False
-        elif not self.still_pressed and thumby.inputPressed():
-            return {
-                'room': ROOM_START
-            }
-        thumby.display.fill(0)
-        thumby.display.drawText("Final Score:", (thumby.display.width - 60) // 2, 1, 1)
-        thumby.display.drawText(str(self.score), (thumby.display.width - (len(str(self.score)) * 5)) // 2, 9, 1)
 
 def main():    
-    game = GameManager(RoomTitle(), GameLoop(), EndRoom())
+    game = GameManager(RoomTitle(), GameLoop())
     game.start()
 
     prev_time = 0

constants.py

@@ -1,6 +1 @@
 CONST_FPS = 60
-
-ROOM_START = 0
-ROOM_MAIN = 1
-ROOM_END = 2
-ROOM_NEXT = -1

player.py

@@ -17,8 +17,6 @@ CONST_INP_MOVE_RIGHT = thumby.buttonA
 # classes
 class Player:
     def __init__(self):
-        self.prev_x = 0
-        self.prev_y = 0
         self.xsub = float(thumby.display.width / 2)
         self.ysub = float(0)
         self.x = int(self.xsub)
@@ -28,16 +26,14 @@ class Player:
         self.isdecend = 1
         
         self.xspeed = 32 / CONST_FPS
-        self.yspeed = 32
+        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, tpf, camera: Camera):
+    def update_phys(self, current_depth, prev_depth):
-        self.prev_x = self.xsub
-        self.prev_y = self.ysub
         inp = int(0)
         if CONST_INP_MOVE_LEFT.pressed():
             inp -= 1
@@ -62,44 +58,35 @@ class Player:
         self.xsub = max(min(xx, thumby.display.width - 1), 0)
         
         ### y movement
-        
+        self.ysub = current_depth - (thumby.display.height / 2)
-        self.ysub += self.yspeed * tpf
         
         ### pixel positions
         self.x = int(self.xsub)
         self.y = int(self.ysub)
         
         # animation
-        self.anim.update_phys(self.x, self.y, camera)
+        self.anim.update_phys(self.x, self.y, CONST_PL_SCREEN_Y, current_depth)
         
-    def update_draw(self, camera):
+    def update_draw(self, plworldy):
         # debug draw
         if self.debugvisible:
-            pix_x, pix_y = camera.relative_to_camera(self.x, self.y)
+            pix_x = self.x
-            thumby.display.setPixel(int(pix_x), int(pix_y), self.isdecend)
+            pix_y = int(self.y - plworldy + 20)
+            thumby.display.setPixel(pix_x, pix_y, self.isdecend)
         
         # animation
-        self.anim.update_draw(camera, self.isdecend)
+        self.anim.update_draw(plworldy - 20, self.isdecend)
         
 
 class Camera:
     def __init__(self, target):
         self.x = int(0)
         self.y = int(0)
-        self.width = thumby.display.width
-        self.height = thumby.display.height
-        self.offset = -self.height / 2
         self.target = target
     
-    def entity_in_camera(self, ent_x, ent_y, ent_width = 0, ent_height = 0) -> bool:
+    def update_phys(self, plscreeny):
-        return ent_x + ent_width >= self.x and ent_y + ent_height >= self.y and ent_x < self.x + self.width and ent_y < self.y + self.height
-    
-    def relative_to_camera(self, global_x, global_y):
-        return (global_x - self.x, global_y - self.y)
-    
-    def update_phys(self):
         # position player
-        self.y = self.target.y + self.offset
+        self.y = self.target.y - plscreeny
 
 
 class PlayerAnimation:
@@ -114,7 +101,7 @@ class PlayerAnimation:
         self.debugrandomrange = self.RANDOM_RANGE
         self.debugposrange = self.POS_RANGE
     
-    def update_phys(self, plworldx, plworldy, camera):
+    def update_phys(self, plworldx, plworldy, plscreeny, current_depth):
         
         #print(plworldx, plworldy, plscreeny, current_depth)
         
@@ -172,23 +159,21 @@ class PlayerAnimation:
         # self.poslist.append((plworldx, plworldy))
         
         ### remove the fist item in the list if its full line is off screen
-        if not camera.entity_in_camera(self.poslist[1][self.POS_X], self.poslist[1][self.POS_Y]):
+        if self.poslist[1][self.POS_Y] < plworldy - plscreeny:
             self.poslist.pop(0)
             
         #print(len(self.poslist))
             
-    def update_draw(self, camera, isdecend=1):
+    def update_draw(self, topleft, prev_depth, isdecend=1):
         ### draw line from first position to next
         
         #print(topleft)
         
         for i in range(len(self.poslist) - 1):
-            x1, y1 = camera.relative_to_camera(self.poslist[i][self.POS_X], self.poslist[i][self.POS_Y])
-            x2, y2 = camera.relative_to_camera(self.poslist[i + 1][self.POS_X], self.poslist[i + 1][self.POS_Y])
             thumby.display.drawLine(
-                int(x1),
+                int(self.poslist[i][self.POS_X]),
-                int(y1), 
+                int(self.poslist[i][self.POS_Y] - topleft), 
-                int(x2),
+                int(self.poslist[i + 1][self.POS_X]),
-                int(y2),
+                int(self.poslist[i + 1][self.POS_Y] - topleft),
                 isdecend
             )

sprites.py

@@ -4,7 +4,6 @@ from random import randrange, random
 import thumby
 
 from Games.Throot.map import ObstacleSlice
-from Games.Throot.player import Player, Camera
 from Games.Throot.artrepository import OBSTACLES
 
 class Entity:
@@ -37,9 +36,9 @@ class Entity:
             return False
         rel_x = int(loc_x - self.x)
         rel_y = int(loc_y - self.y)
-        return bool((self.collision[rel_x] >> (rel_y)) & 1)
+        return bool((self.collision[rel_x] >> (self.height - rel_y)) & 1)
 
-    def can_render(self, camera: Camera) -> bool:
+    def can_render(self, current_depth: int) -> bool:
         """
         Checks to see if this sprite is within the game screen.
 
@@ -50,9 +49,15 @@ class Entity:
         :return:
             True if the sprite shows up on screen in any capacity, false otherwise.
         """
-        return camera.entity_in_camera(self.x, self.y, self.width, self.height)
+        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, player: Player, camera: Camera) -> bool:
+    def update(self, tpf: float, current_depth: int, prev_depth: int) -> bool:
         """
         Updates the state of the entity based on the game state.
 
@@ -69,7 +74,7 @@ class Entity:
         """
         return False
 
-    def render(self, tpf: float, camera: Camera) -> bool:
+    def render(self, tpf: float, current_depth: int, prev_depth: int) -> bool:
         """
         Sets the position of the sprite and draws it.
         
@@ -85,17 +90,16 @@ class Entity:
             should be hidden.
         """
         if self.sprite:
-            coordinates = camera.relative_to_camera(self.x, self.y)
+            self.sprite.y = int(self.y - current_depth + thumby.display.height)
-            self.sprite.x = coordinates[0]
+            self.sprite.x = int(self.x)
-            self.sprite.y = coordinates[1]
+            if self.can_render(current_depth):
-            if self.can_render(camera):
                 thumby.display.drawSprite(self.sprite)
                 return True
         return False
 
 class Obstacle(Entity):    
-    def update(self, tpf: float, player: Player, camera: Camera) -> bool:
+    def update(self, tpf: float, current_depth: int, prev_depth: int) -> bool:
-        return True
+        return self.can_render(current_depth)
 
 
 def update_entities(entities, difficulty: int, current_depth: int, prev_depth: int):
@@ -123,7 +127,7 @@ def update_entities(entities, difficulty: int, current_depth: int, prev_depth: i
         return set()
         
     spawned = set()
-    max_spawned = randrange(0, difficulty + 1)
+    max_spawned = 1#randrange(0, difficulty + 1)
     while len(spawned) < max_spawned and random() < (2 * math.pow(difficulty + 0.01, 2)) / (3 * math.pow(difficulty + 0.01, 2) + 20 * (difficulty + 0.01)) + 0.05:
         sprite_image = OBSTACLES[randrange(0, min((difficulty + 1) * 3, len(OBSTACLES)))]
         if sprite_image.width >= thumby.display.width:
@@ -131,10 +135,6 @@ def update_entities(entities, difficulty: int, current_depth: int, prev_depth: i
         else:
             x = randrange(0, thumby.display.width - sprite_image.width)
         y = current_depth
-        if current_depth > prev_depth:
-            y += thumby.display.height // 2
-        elif current_depth < prev_depth:
-            y -= thumby.display.height // 2 + sprite_image.height
         error = False
         for entity in entities | spawned:
             if x > (entity.x - OBSTACLE_BUFFER) and x <= (entity.x + entity.width + OBSTACLE_BUFFER) and y > (entity.y - OBSTACLE_BUFFER) and y <= (entity.y + entity.height + OBSTACLE_BUFFER):
@@ -142,6 +142,5 @@ def update_entities(entities, difficulty: int, current_depth: int, prev_depth: i
                 break
         if not error:
             sprite = thumby.Sprite(sprite_image.width, sprite_image.height, sprite_image.image, 0, 0, 0, False, False)
-            print("Adding obstacle of to (%d, %d) of size (%d, %d)" % (x, y, sprite_image.width, sprite_image.height))
             spawned.add(Obstacle(x, y, sprite_image.width, sprite_image.height, sprite_image.collision or sprite_image.image, sprite))
     return spawned