class World(object):
def __init__(self, width, height):
self.width = 300
self.height = 300
self.grid_size = 20
self.pixel_size = Rect(0, 0, width, height)
self.full_grid = Rect(0, 0, self.width, self.height)
self.view_grid = Rect(10, 10, 0, 0)
self.prev_view_grid = None
self.zoom(0)
self.ground = [[0 for col in range(self.width)] for row in range(self.height)]
for y in range(self.height):
for x in range(self.width):
self.ground[y][x] = Assets.colors_db.any('dirt')
self.surface = Surface((width, height), HWSURFACE, 32)
def draw(self, screen):
rect = self.view_grid
if self.prev_view_grid != rect:
self.prev_view_grid = Rect(rect)
x1 = rect.left
y1 = rect.top
x2 = min(self.width, rect.left + rect.width)
y2 = min(self.height, rect.top + rect.height)
r = Rect(0, 0, self.grid_size, self.grid_size)
for row in self.ground[y1:y2 - 1]:
for col in row[x1:x2 - 1]:
self.surface.fill(col, r)
r.left += self.grid_size
r.left = 0
r.top += self.grid_size
screen.blit(self.surface, self.pixel_size)
def view_move(self, move):
self.view_grid.left += move.x
self.view_grid.top += move.y
self.view_grid.clamp_ip(self.full_grid)
def zoom_in(self):
self.zoom(+1)
def zoom_out(self):
self.zoom(-1)
def zoom(self, dz):
if 50 >= self.grid_size + dz >= 5:
self.grid_size = self.grid_size + dz
self.view_grid.width = int(math.ceil(self.pixel_size.width / float(self.grid_size))) + 1
self.view_grid.height = int(math.ceil(self.pixel_size.height / float(self.grid_size))) + 1
self.view_grid.clamp_ip(self.full_grid)
self.prev_view_grid = None
