class RenderedTiles(sge.Object):
"""
An object of this class takes all :class:`xsge_tmx.Decoration`
objects which:
* Have the same Z-axis value as this object;
* Have a sprite with only one frame;
* Are inactive;
* Are not tangible;
* Have no speed;
* Have no acceleration;
* Do not in any way reside outside of the room.
It then draws all such objects' sprites onto a single room-sized
sprite, which becomes this object's sprite, and destroys the
objects.
If such objects do not exist, this object is destroyed.
Effectively, this eliminates slowdown caused by looping through
hundreds or thousands of objects representing tiles.
"""
def event_create(self):
rw = sge.game.current_room.width
rh = sge.game.current_room.height
my_tiles = []
for obj in sge.game.current_room.objects:
if (isinstance(obj, Decoration) and
obj.z == self.z and obj.sprite is not None and
obj.sprite.frames == 1 and not obj.active and
not obj.tangible and not obj.speed and
not obj.xacceleration and not obj.yacceleration and
obj.x - obj.image_origin_x >= 0 and
obj.x - obj.image_origin_x + obj.sprite.width < rw and
obj.y - obj.image_origin_y >= 0 and
obj.y - obj.image_origin_y + obj.sprite.height < rh):
my_tiles.append(obj)
if len(my_tiles) > 1:
self.tangible = False
self.sprite = sge.Sprite(width=rw, height=rh)
self.sprite.draw_lock()
for obj in my_tiles:
if obj.visible and obj.image_alpha:
spr = obj.sprite.copy()
if obj.image_blend is not None:
bspr = sge.Sprite(width=spr.width, height=spr.height)
bspr.draw_rectangle(0, 0, bspr.width, bspr.height,
fill=obj.image_blend)
spr.draw_sprite(bspr, 0, 0, 0,
blend_mode=sge.BLEND_RGB_MULTIPLY)
if obj.image_alpha < 255:
bspr = sge.Sprite(width=spr.width, height=spr.height)
bspr.draw_rectangle(0, 0, bspr.width, bspr.height,
fill=sge.Color((255, 255, 255,
obj.image_alpha)))
spr.draw_sprite(bspr, 0, 0, 0,
blend_mode=sge.BLEND_RGB_MULTIPLY)
if obj.image_xscale < 0:
spr.mirror()
if obj.image_yscale < 0:
spr.flip()
spr.width *= abs(obj.image_xscale)
spr.height *= abs(obj.image_yscale)
origin_x = spr.origin_x
origin_y = spr.origin_y
if obj.image_rotation % 360:
spr.rotate(obj.image_rotation)
if obj.image_origin_x is not None:
spr.origin_x = obj.image_origin_x
else:
spr.origin_x = origin_x
if obj.image_origin_y is not None:
spr.origin_y = obj.image_origin_y
else:
spr.origin_y = origin_y
self.sprite.draw_sprite(spr, 0, obj.x, obj.y)
obj.destroy()
self.sprite.draw_unlock()
else:
self.destroy()
