added camera and collidable tiles

data/maps/map_1.csv

@@ -1,21 +1,21 @@
-3,1,1,1,1,1,1,1,1,1,1,1,1,1,4
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-1,2,2,2,2,2,2,2,2,2,2,2,2,2,1
-5,1,1,1,1,1,1,1,1,1,1,1,1,1,6 
+3,2,2,2,2,2,2,2,2,2,2,2,2,2,4
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,2
+5,2,2,2,2,2,2,2,2,2,2,2,2,2,6 

game.py

@@ -2,7 +2,8 @@ import pygame
 import numpy as np
 from scripts.tiles import Tilemap
 from scripts.entities import Entity
-from scripts.utils import load_image, load_images
+from scripts.utils import load_image, load_images, to_isometric_pixel
+from scripts.camera import Camera
 
 # SETTINGS
 WIDTH = 1280
@@ -18,7 +19,7 @@ class Game:
         pygame.display.set_caption(TITLE)
         self.clock = pygame.time.Clock()
 
-        self.player = Entity(self, 'player', (50.0,200.0), (8, 15))
+        self.player = Entity(self, 'player', (64., 64.), (28, 42))
         self.assets = {
             'player' : load_image('entities/player.png'),
             #'grass' : load_images('tiles/grass/'),
@@ -26,6 +27,7 @@ class Game:
             'iso'    : load_images('tiles/iso/')
         }
         self.tilemap = Tilemap(self, (64,32), 'map_1.csv')
+        self.camera = Camera(self)
     def run(self):
         self.status = True
         while self.status:
@@ -36,17 +38,20 @@ class Game:
                     self.status = False
             keys = pygame.key.get_pressed()
             if keys[pygame.K_LEFT]:
-                delta[0] -= 1
+                delta[0] -= 5
             if keys[pygame.K_RIGHT]:
-                delta[0] += 1
+                delta[0] += 5
             if keys[pygame.K_UP]:
-                delta[1] -= 0.5
+                delta[1] -= 5
             if keys[pygame.K_DOWN]:
-                delta[1] += 0.5
-            self.player.update(delta)
-            self.tilemap.render(self.display)
-            self.player.render(self.display)
-            self.screen.blit(pygame.transform.scale_by(self.display,2), (0,0))
+                delta[1] += 5
+            #print(self.tilemap.physics_rects_around(self.player.pos))
+            print(self.player.pos)
+            self.camera.update()
+            self.player.update(self.tilemap, delta)
+            self.tilemap.render(self.display, offset = self.camera.scroll)
+            self.player.render(self.display, offset = self.camera.scroll)
+            self.screen.blit(pygame.transform.scale(self.display,self.screen.get_size()), (0,0))
             pygame.display.update()
             self.clock.tick(60)
         pygame.quit()

scripts/camera.py

@@ -0,0 +1,10 @@
+import pygame
+import numpy as np
+from scripts.utils import to_isometric_pixel
+
+class Camera:
+    def __init__(self, game, scroll = np.array([0.,0.])):
+        self.scroll = scroll
+        self.game = game
+    def update(self):
+        self.scroll += (to_isometric_pixel(self.game.player.pos-np.array([48,80]))*np.array([1,0.5]) - np.array(self.game.display.get_size())/2 - self.scroll)/30

scripts/entities.py

@@ -7,10 +7,29 @@ class Entity:
         self.game = game
         self.type = e_type
         self.pos = np.array(pos)
-        self.size = size
+        self.size = np.array(size)
         self.velocity = np.array([0,0], dtype=np.float32)
-    def update(self, movement = np.array([0,0])):
+    def update(self, tilemap, movement = np.array([0,0])):
         frame_movement = self.velocity + movement
-        self.pos += frame_movement
-    def render(self, surface):
-        surface.blit(self.game.assets[self.type], self.pos)
+        self.pos[0] += frame_movement[0]
+        entity_rect = self.rect()
+        for rect in tilemap.physics_rects_around(self.pos):
+            if entity_rect.colliderect(rect):
+                if frame_movement[0] > 0: #i was moving right
+                    entity_rect.right = rect.left
+                if frame_movement[0] < 0: #i was moving left
+                    entity_rect.left = rect.right
+                self.pos[0] = entity_rect.x
+        self.pos[1] += frame_movement[1]
+        entity_rect = self.rect()
+        for rect in tilemap.physics_rects_around(self.pos):
+            if entity_rect.colliderect(rect):
+                if frame_movement[1] > 0: #i was moving down
+                    entity_rect.bottom = rect.top
+                if frame_movement[1] < 0: #i was moving up
+                    entity_rect.top = rect.bottom
+                self.pos[1] = entity_rect.y
+    def render(self, surface, offset = np.array([0.,0.])):
+        surface.blit(self.game.assets[self.type], to_isometric_pixel(self.pos-np.array([48,80]))*np.array([1,0.5])-offset)
+    def rect(self):
+        return pygame.Rect(self.pos, self.size)

scripts/tiles.py

@@ -1,8 +1,10 @@
 import pygame
 import numpy as np
-from scripts.utils import TILE_DICT, to_isometric
+from scripts.utils import TILE_DICT, to_isometric_pixel
 
 BASE_MAP_PATH = 'data/maps/'
+NEIGHBOR_OFFSETS = [np.array((i,j)) for i in (-1,0,1) for j in (-1,0,1)]
+
 
 class Tilemap:
     def __init__(self, game, tile_size, map_path):
@@ -17,11 +19,25 @@ class Tilemap:
         for row in range(tile_arr.shape[0]):
             for col in range(tile_arr.shape[1]):
                 type_var = TILE_DICT[tile_arr[row,col]]
-                self.tilemap[row,col] = {'type' : type_var[0], 'variant' : type_var[1], 'pos': np.array([row,col])}
-    def render(self, surface):
+                self.tilemap[row,col] = {'type' : type_var[0], 'variant' : type_var[1], 'pos': np.array([row,col]), 'walkable': type_var[2]}
+    def render(self, surface, offset = np.array([0,0])):
         for x in range(self.tilemap.shape[0]):
             for y in range(self.tilemap.shape[1]):
                 tile = self.tilemap[x,y]
-                surface.blit(self.game.assets[tile['type']][tile['variant']],to_isometric(tile['pos'],self.tile_size))
+                surface.blit(self.game.assets[tile['type']][tile['variant']],(to_isometric_pixel(tile['pos'])*self.tile_size)-offset)
         for tile in self.offgrid_tiles:
-            surface.blit(self.game.assets[tile['type']][tile['variant']],to_isometric(tile['pos'],self.tile_size))  #this tile is written offgrid so no mult by tile_size
+            surface.blit(self.game.assets[tile['type']][tile['variant']],(to_isometric_pixel(tile['pos'])*self.tile_size)-offset)  #this tile is written offgrid so no mult by tile_size
+    def tiles_around(self,pos):
+        tiles = []
+        tile_loc = np.array(pos // np.array((self.tile_size[0],self.tile_size[0])),dtype=int) #gotta use this and not just self.tile_size to normalize wrt the change of variables for the isometric view
+        for offset in NEIGHBOR_OFFSETS:
+            check_loc = tile_loc + offset
+            if np.all(check_loc >= 0) and np.all(check_loc < self.tilemap.shape):
+                tiles.append(self.tilemap[tuple(check_loc)])
+        return tiles
+    def physics_rects_around(self,pos):
+        rects = []
+        for tile in self.tiles_around(pos):
+            if not tile['walkable']:
+                rects.append(pygame.Rect(tile['pos'] * np.array((self.tile_size[0],self.tile_size[0])), np.array((self.tile_size[0],self.tile_size[0]))))
+        return rects

scripts/utils.py

@@ -2,12 +2,12 @@ import pygame
 import os
 import numpy as np
 TILE_DICT = {
-    1 : ('iso',0),
-    2 : ('iso',1),
-    3 : ('iso',2),
-    4 : ('iso',3),
-    5 : ('iso',4),
-    6 : ('iso',5)
+    1 : ('iso',0,True),
+    2 : ('iso',1,False),
+    3 : ('iso',2,False),
+    4 : ('iso',3,False),
+    5 : ('iso',4,False),
+    6 : ('iso',5,False)
 }
 BASE_IMG_PATH = 'data/images/'
 def load_image(path):