update the generator tool & added unmarshalling a whole directory

.vscode/settings.json

@@ -1,7 +1,7 @@
 {
         "workbench.colorCustomizations": {
-                "activityBar.background": "#322C2D",
-                "titleBar.activeBackground": "#463E3F",
-                "titleBar.activeForeground": "#FAFAFA"
+            "activityBar.background": "#322C2D",
+            "titleBar.activeBackground": "#463E3F",
+            "titleBar.activeForeground": "#FAFAFA"
         }
 }

.vscode/tasks.json

@@ -31,6 +31,20 @@
                         },
                         "group": "build"
                 },
+                {
+                        "label": "Clean build folder(s)",
+                        "type": "shell",
+                        "windows": {
+                                "command": "cd ${workspaceFolder}\\build && rm game*; cd ${workspaceFolder} && rm aseprite_odin_generator*",
+                        },
+                        // "linux": {
+                        //         "command": "${workspaceFolder}/scripts/build_release.sh",
+                        // },
+                        // "osx": {
+                        //         "command": "${workspaceFolder}/scripts/build_release.sh",
+                        // },
+                        "group": "build"
+                },
                 {
                         "label": "Build Hot Reload",
                         "type": "shell",

scripts/build_generator_debug.bat

@@ -1,2 +1,2 @@
 @echo off
-odin build src/main_release -define:RAYLIB_SHARED=false -out:build/game_debug.exe -no-bounds-check -subsystem:windows -debug
+odin build src/aseprite_odin_generator -define:RAYLIB_SHARED=true -out:build_generator/aseprite_odin_generator.exe -debug

src/aseprite_odin_generator/aseprite_odin_generator.odin

@@ -23,22 +23,15 @@ main :: proc() {
 		fmt.panicf("Couldn't load file!")
 	}
 
-	doc: ase.Document
-	read, um_err := ase.unmarshal_from_slice(ase_file, &doc)
-	if um_err != nil {
-		fmt.panicf("Couldn't unmarshall file!")
-	} else {
-		fmt.printfln("Read {0} bytes from file", read)
-	}
-
-	fmt.println("Header:\n\t", doc.header)
-	// fmt.println("Frames:\n\t", doc.frames)
+	cwd := os.get_current_directory()
+	target_dir := strings.concatenate({cwd, "\\src\\aseprite_odin_generator\\"})
 
 	atlas: rl.Image = rl.GenImageColor(ATLAS_SIZE, ATLAS_SIZE, rl.BLANK)
+	atlas_entries: [dynamic]gen.AtlasEntry
+	gen.unmarshall_aseprite_dir(target_dir, &atlas_entries)
 
-	atlas_entry := gen.atlas_entry_from_compressed_cells(doc)
-        // Packs the cells & blits them to the atlas
-        gen.pack_atlas_entries({atlas_entry}, &atlas)
+
+	gen.pack_atlas_entries(atlas_entries[:], &atlas, 10, 10)
 
 	rl.ExportImage(atlas, EXPORT_PATH)
 }

src/generator.odin

@@ -13,11 +13,13 @@ AtlasEntry :: struct {
 }
 
 unmarshall_aseprite_dir :: proc(path: string, atlas_entries: ^[dynamic]AtlasEntry) {
-	fp.dir(path)
-	if fd, ok := os.open(path); ok == 0 {
-		if fi_files, fi_ok := os.read_dir(fd, -1); fi_ok == 0 {
-			unmarshall_aseprite_files_file_info(fi_files, atlas_entries)
+	if dir_fd, err := os.open(path, os.O_RDONLY); err == os.ERROR_NONE {
+		fis: []os.File_Info
+		if fis, err = os.read_dir(dir_fd, -1); err == os.ERROR_NONE {
+			unmarshall_aseprite_files_file_info(fis, atlas_entries)
 		}
+	} else {
+		fmt.println("Couldn't open folder: ", path)
 	}
 }
 
@@ -33,10 +35,15 @@ unmarshall_aseprite_files_file_info :: proc(
 }
 
 unmarshall_aseprite_files :: proc(file_paths: []string, atlas_entries: ^[dynamic]AtlasEntry) {
-	current_document: ase.Document
-	for fp in file_paths {
-		atlas_entry := atlas_entry_from_compressed_cells(current_document)
-		ase.unmarshal_from_filename(fp, &current_document)
+	aseprite_document: ase.Document
+	for file in file_paths {
+		extension := fp.ext(file)
+		if extension != ".aseprite" {continue}
+
+		fmt.println("Unmarshalling file: ", file)
+		ase.unmarshal_from_filename(file, &aseprite_document)
+		atlas_entry := atlas_entry_from_compressed_cells(aseprite_document)
+
 		append(atlas_entries, atlas_entry)
 	}
 }
@@ -71,14 +78,9 @@ atlas_entry_from_compressed_cells :: proc(document: ase.Document) -> (atlas_entr
 }
 
 /*
-        Takes in a slice of entries, an output texture, the width & height 
+        Takes in a slice of entries, an output texture and offsets (offset_x/y)
 */
-pack_atlas_entries :: proc(
-	entries: []AtlasEntry,
-	atlas: ^rl.Image,
-	offset_x: int = 0,
-	offset_y: int = 0,
-) {
+pack_atlas_entries :: proc(entries: []AtlasEntry, atlas: ^rl.Image, offset_x: i32, offset_y: i32) {
 	all_entries: [dynamic]rl.Image // it's fine to store it like this, rl.Image just stores a pointer to the data
 	{
 		for entry in entries {
@@ -100,7 +102,7 @@ pack_atlas_entries :: proc(
 	cellIdx: int
 	for &entry, entryIdx in entries {
 		for &cell in entry.cells {
-                        // I can probably infer this information with just the id of the rect but I'm being lazy right now
+			// I can probably infer this information with just the id of the rect but I'm being lazy right now
 			map_insert(&rect_idx_to_entry_and_cell, cellIdx, EntryAndCell{&entry, &cell})
 			rects[cellIdx].id = auto_cast entryIdx
 			cellIdx += 1
@@ -109,13 +111,13 @@ pack_atlas_entries :: proc(
 
 	for entry, entryIdx in all_entries {
 		entry_stb_rect := &rects[entryIdx]
-		entry_stb_rect.w = auto_cast entry.width
-		entry_stb_rect.h = auto_cast entry.height
+		entry_stb_rect.w = stbrp.Coord(entry.width + offset_x * 2)
+		entry_stb_rect.h = stbrp.Coord(entry.height + offset_y * 2)
 	}
 
 	ctx: stbrp.Context
-	stbrp.init_target(&ctx, atlas.width, atlas.height, &nodes[0], auto_cast num_entries)
-	res := stbrp.pack_rects(&ctx, &rects[0], auto_cast num_entries)
+	stbrp.init_target(&ctx, atlas.width, atlas.height, &nodes[0], i32(num_entries))
+	res := stbrp.pack_rects(&ctx, &rects[0], i32(num_entries))
 	if res == 1 {
 		fmt.println("Packed everything successfully!")
 		fmt.printfln("Rects: {0}", rects[:])
@@ -135,11 +137,12 @@ pack_atlas_entries :: proc(
 		}
 		// Placing it in the atlas in the calculated offsets (in the packing step)
 		dst_rect := rl.Rectangle {
-			auto_cast rect.x,
-			auto_cast rect.y,
+			auto_cast rect.x + auto_cast offset_x,
+			auto_cast rect.y + auto_cast offset_y,
 			auto_cast cell.width,
 			auto_cast cell.height,
 		}
+		fmt.printfln("Src rect: {0}\nDst rect:{1}", src_rect, dst_rect)
 
 		rl.ImageDraw(atlas, cell^, src_rect, dst_rect, rl.WHITE)
 	}