Add support for unreal atlas

PyTexturePacker/PackerInterface/AtlasInterface.py

@@ -9,7 +9,7 @@
     AtlasInterface.py
 ----------------------------------------------------------------------------"""
 
-from ..Utils import ATLAS_FORMAT_PLIST, ATLAS_FORMAT_JSON
+from ..Utils import ATLAS_FORMAT_PLIST, ATLAS_FORMAT_JSON,ATLAS_FORMAT_UNREAL_PAPER2D
 
 MAX_RANK = 2 ** 32
 MAX_WIDTH = 1024 * 16
@@ -80,6 +80,17 @@ def dump_plist(self, texture_file_name="", input_base_path=None, atlas_format=AT
                     sourceSize=dict(w=image_rect.source_size[0], h=image_rect.source_size[1])
                 )
 
+            if atlas_format == ATLAS_FORMAT_UNREAL_PAPER2D:
+                frames[path] = dict(
+                    frame=dict(x=image_rect.x, y=image_rect.y, w=width, h=height),
+                    rotated=bool(image_rect.rotated),
+                    trimed=bool(image_rect.trimmed),
+                    spriteSourceSize=dict(
+                        x=image_rect.source_box[0], y=image_rect.source_box[1],
+                        w=image_rect.source_box[2], h=image_rect.source_box[3]),
+                    sourceSize=dict(w=image_rect.source_size[0], h=image_rect.source_size[1])
+                )
+
         plist_data["frames"] = frames
         if atlas_format == ATLAS_FORMAT_PLIST:
             plist_data["metadata"] = dict(
@@ -96,6 +107,16 @@ def dump_plist(self, texture_file_name="", input_base_path=None, atlas_format=AT
                 size=dict(w=self.size[0], h=self.size[1]),
                 scale=1,
             )
+        if atlas_format == ATLAS_FORMAT_UNREAL_PAPER2D:
+            plist_data["meta"] = dict(
+                app="https://www.codeandweb.com/texturepacker",
+                target="paper2d",
+                image=texture_file_name,
+                format="RGBA8888",
+                size=dict(w=self.size[0], h=self.size[1]),
+                scale=1,
+            )
+
 
         return plist_data
 

PyTexturePacker/PackerInterface/PackerInterface.py

@@ -34,7 +34,7 @@ class PackerInterface(object):
 
     def __init__(self, bg_color=0x00000000, texture_format=".png", max_width=4096, max_height=4096, enable_rotated=True,
                  force_square=False, border_padding=2, shape_padding=2, inner_padding=0, trim_mode=0,
-                 reduce_border_artifacts=False, extrude=0, atlas_format=Utils.ATLAS_FORMAT_PLIST):
+                 reduce_border_artifacts=False, extrude=0, atlas_format=Utils.ATLAS_FORMAT_UNREAL_PAPER2D):
         """
         init a packer
         :param bg_color: background color of output image.

PyTexturePacker/Utils.py

@@ -12,9 +12,10 @@
 if sys.version_info.major > 2:
     xrange = range
 
-SUPPORTED_IMAGE_FORMAT = [".png", ".jpg", ".bmp"]
+SUPPORTED_IMAGE_FORMAT = [".png", ".jpg", ".bmp", '.tga']
 ATLAS_FORMAT_PLIST = "plist"
 ATLAS_FORMAT_JSON = "json"
+ATLAS_FORMAT_UNREAL_PAPER2D = "unreal_paper2d"
 
 
 def load_images_from_paths(image_path_list):
@@ -62,6 +63,8 @@ def get_atlas_data_ext(atlas_format):
         return '.plist'
     if atlas_format == ATLAS_FORMAT_JSON:
         return '.json'
+    if atlas_format == ATLAS_FORMAT_UNREAL_PAPER2D:
+        return ".paper2dsprites"
 
 
 def save_atlas_data(data_dict, file_path, atlas_format):
@@ -76,6 +79,8 @@ def save_atlas_data(data_dict, file_path, atlas_format):
         return save_plist(data_dict, file_path)
     if atlas_format == ATLAS_FORMAT_JSON:
         return save_json(data_dict, file_path)
+    if atlas_format == ATLAS_FORMAT_UNREAL_PAPER2D:
+        return save_unreal_paper2d(data_dict, file_path)
 
 
 def save_json(data_dict, file_path):
@@ -90,6 +95,18 @@ def save_json(data_dict, file_path):
         json.dump(data_dict, fp)
 
 
+def save_unreal_paper2d(data_dict, file_path):
+    """
+    save a dict as a unreal json file
+    :param data_dict: dict data
+    :param file_path: json file path to save
+    :return:
+    """
+    import json
+    with open(file_path, 'w') as fp:
+        json.dump(data_dict, fp)
+
+
 def save_plist(data_dict, file_path):
     """
     save a dict as a plist file

main.py

@@ -8,7 +8,9 @@
 Description:
     main.py
 ----------------------------------------------------------------------------"""
+import os
 
+import click
 from PyTexturePacker import Packer
 
 
@@ -17,10 +19,19 @@ def pack_test():
     packer = Packer.create(max_width=2048, max_height=2048, bg_color=0xffffff00)
     # pack texture images under the directory "test_case/" and name the output images as "test_case".
     # "%d" in output file name "test_case%d" is a placeholder, which is a multipack index, starting with 0.
-    packer.pack("test_image/", "test_image%d", "")
+    packer.pack("Gizmos/", "Gizmos%d", "")
 
 
-def main():
+def pack(source):
+    source = os.path.normpath(source)
+    for root, ds, fs in os.walk(source):
+        if len(fs) > 0:
+            dir_name = root.split('\\')[-1]
+            packer = Packer.create(max_width=2048, max_height=2048, bg_color=0xffffff00)
+            packer.pack(root, dir_name, root)
+
+
+def main(source):
     pack_test()