Fix compile for 4.0.

README.md

@@ -8,7 +8,7 @@ It uses the legacy version of [rectpack2D](https://github.com/TeamHypersomnia/re
 
 It should work on all platforms.
 
-It supports both godot 3.2 and 4.0 (master). Note that since 4.0 is still in very early stages I only 
+It supports both godot 3.2 and 4.0 (master [last tested commit](https://github.com/godotengine/godot/commit/b7e10141197fdd9b0dbc4cfa7890329510d36540)). Note that since 4.0 is still in very early stages I only 
 check whether it works from time to time.
 
 # Pre-built binaries

layers/texture_layer_merger.h

@@ -23,11 +23,19 @@ SOFTWARE.
 #ifndef TEXTURE_LAYER_MERGER_H
 #define TEXTURE_LAYER_MERGER_H
 
-#include "core/reference.h"
+#include "core/version.h"
 
-#include "core/image.h"
-#include "core/math/rect2.h"
+#if VERSION_MAJOR > 3
+#include "core/object/reference.h"
+#include "core/templates/vector.h"
+#include "core/io/image.h"
+#else
+#include "core/reference.h"
 #include "core/vector.h"
+#include "core/image.h"
+#endif
+
+#include "core/math/rect2.h"
 #include "scene/resources/texture.h"
 
 #include "core/version.h"

texture_merger.h

@@ -23,10 +23,17 @@ SOFTWARE.
 #ifndef TEXTURE_MERGER_H
 #define TEXTURE_MERGER_H
 
-#include "scene/main/node.h"
+#include "core/version.h"
 
-#include "core/engine.h"
+#if VERSION_MAJOR > 3
+#include "core/templates/vector.h"
+#include "core/config/engine.h"
+#else
 #include "core/vector.h"
+#include "core/engine.h"
+#endif
+
+#include "scene/main/node.h"
 
 #include "texture_packer.h"
 

texture_packer.cpp

@@ -447,10 +447,17 @@ int TexturePacker::get_offset_for_format(Image::Format format) {
 		case Image::FORMAT_BPTC_RGBA:
 		case Image::FORMAT_BPTC_RGBF:
 		case Image::FORMAT_BPTC_RGBFU:
+#if VERSION_MAJOR <= 3
 		case Image::FORMAT_PVRTC2:
 		case Image::FORMAT_PVRTC2A:
 		case Image::FORMAT_PVRTC4:
 		case Image::FORMAT_PVRTC4A:
+#else
+		case Image::FORMAT_PVRTC1_2:
+		case Image::FORMAT_PVRTC1_2A:
+		case Image::FORMAT_PVRTC1_4:
+		case Image::FORMAT_PVRTC1_4A:
+#endif
 		case Image::FORMAT_ETC:
 		case Image::FORMAT_ETC2_R11:
 		case Image::FORMAT_ETC2_R11S:

texture_packer.h

@@ -23,18 +23,27 @@ SOFTWARE.
 #ifndef TEXTURE_PACKER_H
 #define TEXTURE_PACKER_H
 
-#include "core/color.h"
+#include "core/version.h"
+
+#if VERSION_MAJOR > 3
+#include "core/io/image.h"
+#include "core/object/reference.h"
+#include "core/templates/vector.h"
+#include "core/string/ustring.h"
+#include "core/math/color.h"
+#else
 #include "core/image.h"
 #include "core/reference.h"
-#include "core/ustring.h"
 #include "core/vector.h"
+#include "core/ustring.h"
+#include "core/color.h"
+#endif
+
 #include "scene/resources/texture.h"
 #include <vector>
 
 #include "rectpack2D/pack.h"
 
-#include "core/version.h"
-
 #if VERSION_MAJOR >= 4
 #define PoolVector Vector
 #define Texture Texture2D

texture_resource/editor_plugin_packer_image_resource.h

@@ -23,7 +23,14 @@ SOFTWARE.
 #ifndef EDITOR_PLUGIN_PACKER_IMAGE_RESOURCE_H
 #define EDITOR_PLUGIN_PACKER_IMAGE_RESOURCE_H
 
+#include "core/version.h"
+
+#if VERSION_MAJOR > 3
+#include "core/string/ustring.h"
+#else
 #include "core/ustring.h"
+#endif
+
 #include "editor/editor_plugin.h"
 
 #include "packer_image_resource_importer.h"

texture_resource/packer_image_resource.h

@@ -23,7 +23,14 @@ SOFTWARE.
 #ifndef PACKER_IMAGE_REOURCE_H
 #define PACKER_IMAGE_REOURCE_H
 
+#include "core/version.h"
+
+#if VERSION_MAJOR > 3
+#include "core/io/image.h"
+#else
 #include "core/image.h"
+#endif
+
 #include "scene/resources/texture.h"
 
 class PackerImageResource : public Texture {

texture_resource/packer_image_resource_importer.h

@@ -23,11 +23,19 @@ SOFTWARE.
 #ifndef PACKER_IMAGE_RESOURCE_H
 #define PACKER_IMAGE_RESOURCE_H
 
-#include "core/io/resource_saver.h"
+#include "core/version.h"
+
+#if VERSION_MAJOR > 3
+#include "core/string/ustring.h"
+#include "core/io/image.h"
+#else
 #include "core/ustring.h"
+#include "core/image.h"
+#endif
+
+#include "core/io/resource_saver.h"
 #include "editor/import/editor_import_plugin.h"
 
-#include "core/image.h"
 #include "core/io/image_loader.h"
 
 #include "packer_image_resource.h"