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package assets_gen
import os "core:os/os2"
import "core:fmt"
import "core:strings"
import "core:path/filepath"
import "core:image"
import "core:image/png"
import "core:image/qoi"
import ase "aseprite"
import aseutil "aseprite/utils"
load_map :: proc(path: string, _: ^os.File, _: ^os.File) {
line := fmt.aprintf("#load(\"%v\")", path)
maps[filepath.stem(path)] = line
paths_to_res_type[path] = "Map_Id"
}
load_tileset :: proc(path: string, _: ^os.File, _: ^os.File) {
line := fmt.aprintf("#load(\"%v\")", path)
tilesets[filepath.stem(path)] = line
paths_to_res_type[path] = "Tileset_Id"
}
load_qoi :: proc(path: string, qoi: ^os.File, output: ^os.File) {
line := fmt.aprintf("{{data = #load(%w)}}", path)
images[filepath.stem(path)] = line
paths_to_res_type[path] = "Image_Id"
}
load_png :: proc(path: string, png_file: ^os.File, output: ^os.File) {
// Convert all PNG files to QOI and store those
png_bytes, read_err := os.read_entire_file(png_file, context.allocator)
if read_err != nil {
die("Could not read file (%v)", read_err)
}
defer delete(png_bytes)
img, png_err := png.load_from_bytes(png_bytes)
if png_err != nil {
die("Could not parse file (%v)", png_err)
}
defer image.destroy(img)
info, fi_err := os.fstat(png_file, allocator = context.temp_allocator)
if fi_err != nil {
die("Could not load file info (%v)", fi_err)
}
compiled_path := strings.concatenate(
{COMPILED_DIR, filepath.stem(info.name), ".qoi"},
allocator = context.temp_allocator,
)
qoi_err := qoi.save_to_file(compiled_path, img)
if qoi_err != nil {
die("Could not convert PNG to QOI (%v)", qoi_err)
}
absolute_path, abs_ok := filepath.abs(
compiled_path,
allocator = context.temp_allocator,
)
if !abs_ok {
die("Could not find absolute path to a compiled file (%v)", compiled_path)
}
line := fmt.aprintf("{{data = #load(%w)}}", absolute_path)
images[filepath.stem(path)] = line
paths_to_res_type[path] = "Image_Id"
}
@(private="file")
load_sprite_sheet :: proc(path: string, doc: ^ase.Document) {
sprite_sheet, ss_err := aseutil.create_sprite_sheet(doc, {
size = {int(doc.header.width), int(doc.header.height)},
count = int(doc.header.frames),
})
if ss_err != nil {
die(
"Could not create sprite sheet from aseprite file %v (%v)",
path,
ss_err,
)
}
defer aseutil.destroy(sprite_sheet)
fmt.println("loaded ss")
pixels := make(
[]image.RGBA_Pixel,
sprite_sheet.width * sprite_sheet.height,
allocator = context.temp_allocator,
)
i := 0
for i < sprite_sheet.width * sprite_sheet.height {
channel := i * 4
pixels[i].r = sprite_sheet.data[channel + 0]
pixels[i].g = sprite_sheet.data[channel + 1]
pixels[i].b = sprite_sheet.data[channel + 2]
pixels[i].a = sprite_sheet.data[channel + 3]
i += 1
}
img, img_ok := image.pixels_to_image(
pixels,
sprite_sheet.width,
sprite_sheet.height,
)
if !img_ok {
die("Could not create sprite sheet image %v", path)
}
compiled_path := strings.concatenate(
{COMPILED_DIR, filepath.stem(path), "-sheet.qoi"},
allocator = context.temp_allocator,
)
qoi_err := qoi.save_to_file(compiled_path, &img)
if qoi_err != nil {
die("Could not save spritesheet %v (%v)", path, qoi_err)
}
absolute_path, abs_ok := filepath.abs(
compiled_path,
allocator = context.temp_allocator,
)
if !abs_ok {
die("Could not find absolute path to a compiled file (%v)", compiled_path)
}
line := fmt.aprintf("{{data = #load(%w)}}", absolute_path)
images[filepath.stem(path)] = line
paths_to_res_type[path] = "Image_Id"
}
@(private="file")
load_animation :: proc(path: string, doc: ^ase.Document) {
tags: map[string]struct{
from: i32,
to: i32,
}
defer delete(tags)
for frame in doc.frames {
for chunk in frame.chunks {
bin_tags, is_tags := chunk.(ase.Tags_Chunk)
if !is_tags {
continue
}
for bin_tag in bin_tags {
tags[bin_tag.name] = {
from = i32(bin_tag.from_frame),
to = i32(bin_tag.to_frame),
}
}
}
}
frame_durations := make([]i32, doc.header.frames)
defer delete(frame_durations)
i := 0
for frame in doc.frames {
frame_durations[i] = i32(frame.header.duration)
i += 1
}
line := fmt.aprintf(
"{{frame_count = %w, frame_durations = %w, tags = %w}}",
len(frame_durations),
frame_durations[:],
tags,
)
animations[filepath.stem(path)] = line
}
load_ase :: proc(path: string, ase_file: ^os.File, output: ^os.File) {
doc: ase.Document
defer ase.destroy_doc(&doc)
unmarshal_err := ase.unmarshal(&doc, path, alloc = context.temp_allocator)
if unmarshal_err != nil {
die("Could not unmarshal aseprite file %v (%v)", path, unmarshal_err)
}
// Load sprite sheet
load_sprite_sheet(path, &doc)
// Load animation
load_animation(path, &doc)
}
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