Added floor, character sprite, and made scalable

triple-dungeon/main.py

@@ -10,25 +10,33 @@ SCREEN_TITLE = "Triple Dungeon!!!"
 
 # Constants used to scale our sprites from their original size
 CHARACTER_SCALING = 1
-TILE_SCALING = 0.5
+TILE_SCALING = 2
 
 # Movement speed of player, in pixels per frame
 PLAYER_MOVEMENT_SPEED = 5
 
 
+# How many pixels to keep as a minimum margin between the character
+# and the edge of the screen.
+LEFT_VIEWPORT_MARGIN = 250
+RIGHT_VIEWPORT_MARGIN = 250
+BOTTOM_VIEWPORT_MARGIN = 50
+TOP_VIEWPORT_MARGIN = 100
+
+
 class MyGame(arcade.Window):
     """
     Main application class.
     """
 
     def __init__(self):
-
         # Call the parent class and set up the window
         super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
 
         # These are 'lists' that keep track of our sprites. Each sprite should
         # go into a list.
         self.wall_list = None
+        self.floor_list = None
         self.player_list = None
 
         # Separate variable that holds the player sprite
@@ -40,22 +48,36 @@ class MyGame(arcade.Window):
         #list to keep track of keypresses
         self.prev_keypress = []
 
-        arcade.set_background_color(arcade.csscolor.CORNFLOWER_BLUE)
+        # Used to keep track of our scrolling
+        self.view_bottom = 0
+        self.view_left = 0
+
+        arcade.set_background_color(arcade.csscolor.BLACK)
 
     def setup(self):
         """ Set up the game here. Call this function to restart the game. """
         # Create the Sprite lists
         self.wall_list = arcade.SpriteList()
+        self.floor_list = arcade.SpriteList()
         self.player_list = arcade.SpriteList()
 
-
         # Set up the player, specifically placing it at these coordinates.
-        image_source = "../Python Arcade logo.png"
+        image_source = "images/monsters/skeleton.png"
         self.player_sprite = arcade.Sprite(image_source, CHARACTER_SCALING)
-        self.player_sprite.center_x = 64
-        self.player_sprite.center_y = 128
+        self.player_sprite.center_x = SCREEN_WIDTH / 2
+        self.player_sprite.center_y = SCREEN_HEIGHT / 2
+        self.player_sprite.scale = 4
         self.player_list.append(self.player_sprite)
 
+        # Create the floor
+        # This shows using a loop to place multiple sprites horizontally and vertically
+        for y in range(0, 1250, 63 * TILE_SCALING):
+            for x in range(0, 1250, 63 * TILE_SCALING):
+                floor = arcade.Sprite("images/tiles/floor_tile.png", TILE_SCALING)
+                floor.center_x = x
+                floor.center_y = y
+                self.floor_list.append(floor)
+
         # Create the 'physics engine'
         self.physics_engine = arcade.PhysicsEngineSimple(self.player_sprite, self.wall_list)
 
@@ -66,6 +88,7 @@ class MyGame(arcade.Window):
         arcade.start_render()
 
         # Draw our sprites
+        self.floor_list.draw()
         self.player_list.draw()
 
     def on_key_press(self, key, modifiers):
@@ -103,15 +126,53 @@ class MyGame(arcade.Window):
         if self.prev_keypress:
             self.on_key_press(self.prev_keypress.pop(0), '')
 
-
-
     def on_update(self, delta_time):
         """ Movement and game logic """
 
         # Move the player with the physics engine
         self.physics_engine.update()
 
+                # --- Manage Scrolling ---
 
+        # Track if we need to change the viewport
+
+        changed = False
+
+        # Scroll left
+        left_boundary = self.view_left + LEFT_VIEWPORT_MARGIN
+        if self.player_sprite.left < left_boundary:
+            self.view_left -= left_boundary - self.player_sprite.left
+            changed = True
+
+        # Scroll right
+        right_boundary = self.view_left + SCREEN_WIDTH - RIGHT_VIEWPORT_MARGIN
+        if self.player_sprite.right > right_boundary:
+            self.view_left += self.player_sprite.right - right_boundary
+            changed = True
+
+        # Scroll up
+        top_boundary = self.view_bottom + SCREEN_HEIGHT - TOP_VIEWPORT_MARGIN
+        if self.player_sprite.top > top_boundary:
+            self.view_bottom += self.player_sprite.top - top_boundary
+            changed = True
+
+        # Scroll down
+        bottom_boundary = self.view_bottom + BOTTOM_VIEWPORT_MARGIN
+        if self.player_sprite.bottom < bottom_boundary:
+            self.view_bottom -= bottom_boundary - self.player_sprite.bottom
+            changed = True
+
+        if changed:
+            # Only scroll to integers. Otherwise we end up with pixels that
+            # don't line up on the screen
+            self.view_bottom = int(self.view_bottom)
+            self.view_left = int(self.view_left)
+
+            # Do the scrolling
+            arcade.set_viewport(self.view_left,
+                                SCREEN_WIDTH + self.view_left,
+                                self.view_bottom,
+                                SCREEN_HEIGHT + self.view_bottom)
 
 
 def main():
@@ -122,4 +183,4 @@ def main():
 
 
 if __name__ == "__main__":
-    main()
+    main()