Cocos2d/Python:层的可视部分与焦点方向相反移动
我是个新手,正在用Python和Cocos2d 0.6.0制作一个游戏 :)
我正在使用ScrollingManager的set_focus(x, y)
方法,通过鼠标在一个2D瓦片地图上滚动。涉及的层似乎滚动得很正常,但有一个和窗口大小(512x512)一样的裁剪层,朝相反的方向移动,部分遮挡了我的层。我该怎么让这个裁剪层消失呢?
我可以这样更好地理解这个问题:
作为参考,我正在使用Cocos2d 0.6.0的ScrollingManager类来进行Python编程。
[编辑] 我创建了一个独立的脚本,可以进行测试。
import pyglet
from pyglet.window import key, mouse
import cocos
from cocos import tiles, actions, layer
import random
def main():
global mouse, scroller
global fx, fy, winx, winy, offsetx, offsety
# map size (cells)
hsize = 128
vsize = 128
# window size (pixels)
winx = 960
winy = 640
# coordinates of screen focus
fx = 0
fy = 0
from cocos.director import director
director.init(width=winx, height=winy, do_not_scale=True, resizable=True)
offsetx = hsize * 16 - winx
offsety = vsize * 16 - winy
##################################
### creation of randomized map ###
##################################
tileset = {}
# a 16x16 pixel tile (blue, represents water)
tileset['water'] = pyglet.image.ImageGrid(pyglet.image.load('resources/water.png'), 4, 4)
# a 16x16 pixel tile (green, represents land)
tileset['land'] = pyglet.image.ImageGrid(pyglet.image.load('resources/land.png'), 4, 4)
# empty 2D array holding RectCells
cellMatrix = [ [None]*hsize for i in range(vsize) ]
# filling of array
for v in range(vsize):
for h in range(hsize):
if random.random() < 0.5:
image = tileset['water'][1]
else:
image = tileset['land'][1]
tile = cocos.tiles.Tile('test', {}, image, None)
cellMatrix[v][h] = cocos.tiles.RectCell(h*16, v*16, 1, 1, None, tile)
##################################
### end of creating random map ###
##################################
# creating rectMapLayer from cell array
rectMapLayer = cocos.tiles.RectMapLayer('test', 16, 16, cellMatrix, None, {})
scroller = cocos.layer.ScrollingManager()
scroller.add(rectMapLayer, 0, 'test')
main_scene = cocos.scene.Scene(scroller)
def on_mouse_motion(x, y, dx, dy):
global fx, fy, offsetx, offsety, winx, winy
if x > winx - 16:
fx = min(offsetx, fx + 16)
if x < 16:
fx = max(0, fx - 16)
if y > winy - 16:
fy = min(offsety, fy + 16)
if y < 16:
fy = max(0, fy - 16)
scroller.set_focus(fx + winx/2, fy + winy/2, force=True)
director.window.push_handlers(on_mouse_motion)
director.run(main_scene)
# run game
if __name__ == '__main__':
main()
谢谢大家的回答!
1 个回答
0
通过改变每一层的视图来解决了这个问题,具体做法如下:
rectMapLayer = cocos.tiles.RectMapLayer('test', 16, 16, cellMatrix, None, {})
scroller = cocos.layer.ScrollingManager()
scroller.add(rectMapLayer, 0, 'test_layer')
# focus coordinates
x = 50
y = 50
scroller.get('test_layer').set_view(0, 0, 1024, 1024, -x, -y)
这样做会让测试层的视图从原点(0, 0)开始,宽度和高度都是1024x1024,并且会有一个-x和-y的偏移。