def __init__(self, model2, img):
mesh = model2.mesh.copy()
# Compute bounding box of the (projection of the) mesh
v2_min, v2_max = mesh.get_bounds_2d(util.project)
v2_size = (v2_max[0] - v2_min[0], v2_max[1] - v2_min[1])
# The user provided the bounding box of the region covered by the
# image. (Usually this is just (0,0,0) .. (struct_size).) Using that,
# extract the image for the part actually covered by the mesh.
b_min, b_max = model2.bounds
b2_min = (b_min[0], b_min[1] - b_max[2])
b2_max = (b_max[0], b_max[1] - b_min[2])
b2_size = (b2_max[0] - b2_min[0], b2_max[1] - b2_min[1])
# Crop image to the mesh's bounding box
# Special hack
if img.px_size == (TILE_SIZE, TILE_SIZE) and \
b2_size == (TILE_SIZE, 2 * TILE_SIZE):
pass
else:
assert img.px_size == b2_size, \
'image has wrong size for bounds: %s != %s' % (img.px_size, b2_size)
# Extract the region (v2_min - b2_min, v2_max - b2_min)
r2_min = (v2_min[0] - b2_min[0], v2_min[1] - b2_min[1])
img = img.extract(r2_min, size=v2_size, unit=1)
# Crop mesh & image to image's bounding box. We do this after the
# previous step because cropping the image may remove some non-blank
# content, letting us crop the image more aggressively here.
img, i2_min = img.autocrop()
v2_min = geom.add(v2_min, i2_min)
v2_max = geom.add(v2_min, img.px_size)
geom.clip_xv(mesh, *(v2_min + v2_max))
self.mesh = mesh
self.img = img
self.base = v2_min
# Set by `build_sheets`
self.sheet_idx = None
self.offset = None
# Set by `collect_verts'
self.vert_idx = None
self.vert_count = None
def __init__(self, name, image, model, shape, layer):
super(StructureDef, self).__init__(name, shape, layer)
px_size = tuple(x * TILE_SIZE for x in shape.size)
mesh = model.to_mesh()
if isinstance(image, StaticAnimDef):
base = image2.Image(img=image_cache.ConstImage(image.static_base))
base_model2 = Model2(mesh, ((0, 0, 0), px_size))
self.add_part(base_model2, base)
frame_sheet = image2.Image(img=image_cache.ConstImage(image.anim_sheet),
unit=image.anim_size)
frames = [frame_sheet.extract((x, 0)) for x in range(image.length)]
anim = image2.Anim(frames, image.framerate, image.oneshot)
box_min = geom.sub(image.anim_offset, (0, shape.size[2] * TILE_SIZE))
box_max = geom.add(box_min, image.anim_size)
anim_mesh = mesh.copy()
geom.clip_xv(anim_mesh, *(box_min + box_max))
anim_model2 = Model2(anim_mesh, anim_mesh.get_bounds())
self.add_part(anim_model2, anim)
else:
image = image2.Image(img=image_cache.ConstImage(image))
model2 = Model2(mesh, ((0, 0, 0), px_size))
self.add_part(model2, image)