pygame Astar 01 init & grid world

1 files changed, 105 insertions, 0 deletions

diff --git a/path_finding/pygame_spot.py b/path_finding/pygame_spot.py
new file mode 100644
index 0000000..4017704
--- /dev/null
+++ b/path_finding/pygame_spot.py
@@ -0,0 +1,105 @@
+
+import pygame
+from pygame.locals import *
+height = 800
+width = height
+win = pygame.display.set_mode((width, width))
+
+pygame.display.set_caption("grid world")
+
+rows = 50
+cols = rows
+
+spot_width = height//rows
+spot_height = spot_width
+
+RED = (255, 0, 0)
+GREEN = (0, 255, 0)
+BLUE = (0, 255, 0)
+YELLOW = (255, 255, 0)
+WHITE = (255, 255, 255)
+BLACK = (0, 0, 0)
+PURPLE = (128, 0, 128)
+ORANGE = (255, 165, 0)
+GREY = (128, 128, 128)
+TURQUOISE = (64, 224, 208)
+
+
+class Spot:
+    def __init__(self, r, c):
+        self.r = r
+        self.c = c
+        self.x = c * spot_width
+        self.y = r * spot_height
+        self.color = WHITE
+
+
+    def make_start(self):
+        self.color = ORANGE
+
+    def make_end(self):
+        self.color = TURQUOISE
+
+    def draw(self, win):
+        pygame.draw.rect(win, self.color, (self.x, self.y, spot_width, spot_height))
+
+
+def make_grid(win):
+    grid_world = []
+    for i in range(rows):
+        grid_world.append([])
+        for j in range(rows):
+            spot = Spot(i, j)
+            grid_world[i].append(spot)
+    return grid_world
+
+
+def draw_grid(win):
+    gap = width//rows
+    for i in range(rows):
+        pygame.draw.line(win, GREY, (0, i*gap), (width, i*gap))
+    for j in range(cols):
+        pygame.draw.line(win, GREY, (j*gap, 0), (j*gap, height))
+
+
+def draw(win, grid_world):
+    win.fill(WHITE)
+
+    for i in range(rows):
+        for j in range(cols):
+            grid_world[i][j].draw(win)
+    draw_grid(win)
+    pygame.display.update()
+
+
+def map_clicked_pos(pos):
+    x, y = pos
+    r = y//spot_width
+    c = x//spot_width
+    return r, c
+
+if __name__ == '__main__':
+    run = True
+    start, end = None, None
+    grid_world = make_grid(win)
+    while run:
+        draw(win, grid_world)
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+               run = False
+            if event.type == KEYDOWN:
+                if event.key == K_ESCAPE:
+                    run = False
+            left, center, right = pygame.mouse.get_pressed()
+            if left:
+                pos = pygame.mouse.get_pos()
+                r, c = map_clicked_pos(pos)
+                print(r, c, 'clicked')
+                spot = grid_world[r][c]
+                if not start:
+                    start = spot
+                    start.make_start()
+                elif not end:
+                    end = spot
+                    end.make_end()
+