lots of stuff

Cargo.toml

@@ -13,6 +13,8 @@ crate-type = ["cdylib"]
 [dependencies]
 "base64" = "^0.12.3"
 "bitsy-parser" = "^0.72.3"
+"dither" = "1.3.9"
 "image" = "^0.23.7"
+"json" = "^0.12.4"
 "lazy_static" = "^1.4.0"
 "wasm-bindgen" = "=0.2.64" # newer versions are bugged...

TODO.md

@@ -0,0 +1,8 @@
+# todo
+
+* preview
+* dithering
+* palette selection
+* palette dropdown
+* unit test
+* if uploaded image is exactly 128×128, *don't* crop

deploy.sh

@@ -4,4 +4,4 @@
 rm -rf dist
 mkdir dist
 cp -r README.md LICENSE index.html script.js background.png pkg includes dist
-butler push dist ruin/image-to-bitsy:html
+# butler push dist ruin/pixsy:html

includes/style.less

@@ -58,7 +58,6 @@ input {
 }
 
 img {
-    max-height: 12em;
     max-width: 100%;
     margin: 0;
 }
@@ -73,6 +72,10 @@ label {
     font-weight: bold;
 }
 
+select {
+    width: 100%;
+}
+
 textarea {
     height: 15em;
     padding: 0.5em;
@@ -94,6 +97,12 @@ textarea {
     margin-top: 0;
 }
 
+.half {
+    display: inline-block;
+    text-align: left;
+    width: 50%;
+}
+
 .image-container {
     height: 46vh;
     text-align: left;
@@ -114,3 +123,10 @@ textarea {
 #crop canvas {
     height: 32vh;
 }
+
+#preview {
+    width: 256px;
+    height: 256px;
+    image-rendering: pixelated;
+    image-rendering: crisp-edges;
+}

index.pug

@@ -24,34 +24,63 @@ html(lang="en-gb")
                 button.normal.pagination.next#load load an existing bitsy game
             .page.game-data
                 h2 game data
+
                 input#game(type="file" autocomplete="off")
                 br
+
                 textarea#game-data(
                     placeholder="Paste your game data here or use the file chooser button above"
                     autocomplete="off"
                 )
+
                 button.pagination.prev previous
                 button.pagination.next#game-data-next(disabled=true) next
             .page.image
                 h2 image
+
                 .image-container
                     input#image(type="file" accept="image/*")
                     #crop
+
                 button.pagination.prev previous
-                button.pagination.next next
-            .page.extras
-                h2 tiles
+                button.pagination.next#image-next(disabled=true) next
+            .page.room
+                h2 room
+
+                table
+                    tbody
+                        tr
+                            td(style="width: 60%")
+                                img#preview(alt="preview")
+                                br
+
                                 label
-                    | tile name (optional)
-                    input#prefix(type="text" placeholder="e.g. 'forest'" autocomplete="off")
+                                    | brightness
+                                    input#brightness(type="range" min=-64 max=64 value=0)
+                            td
+                                label
+                                    | palette
+                                    select#palette
+
+                                label
+                                    input#dither(type="checkbox")
+                                    | dither
+                                br
+
+                                label
+                                    | name (optional)
+                                    input#room-name(type="text" placeholder="e.g. 'bedroom'" autocomplete="off")
 
                 button.pagination.prev#back-to-image previous
-                button.pagination.next#import next
+                button.pagination.next#room-next next
             .page.download
                 h2 download
+
                 textarea#output(autocomplete="off")
                 br
+
                 button#download download
+
                 button.pagination.prev#add add another image
                 button.pagination.start#reset start again
         script(type="module")

script.js

@@ -1,14 +1,17 @@
 import init, {
     add_room,
+    get_palettes,
+    get_preview,
     load_image,
     load_game,
     load_default_game,
     output,
+    set_dither,
     set_room_name,
 } from './pkg/pixsy.js';
 
 if (typeof WebAssembly !== "object") {
-    document.getElementById("start").innerText = "Sorry - your browser does not support WebAssembly";
+    window.location = "./old/"
 }
 
 // stolen from https://ourcodeworld.com/articles/read/189/how-to-create-a-file-and-generate-a-download-with-javascript-in-the-browser-without-a-server
@@ -61,10 +64,14 @@ async function run() {
     const buttonBackToImage      = el("back-to-image");
     const buttonDownload         = el("download");
     const buttonGameDataProceed  = el("game-data-next");
-    const buttonImportGame       = el("import");
+    const buttonImageProceed     = el("image-next");
+    const buttonRoomProceed      = el("room-next");
     const buttonLoadGame         = el("load");
     const buttonNewGame          = el("new");
     const buttonReset            = el("reset");
+    const checkboxDither         = el("dither");
+    const inputRoomName          = el("room-name");
+    const selectPalette          = el("palette");
     const textareaGameDataInput  = el("game-data");
     const textareaGameDataOutput = el("output");
 
@@ -110,9 +117,25 @@ async function run() {
         }, "text");
     });
 
+    function setPaletteDropdown() {
+        let palettes = JSON.parse(get_palettes());
+
+        selectPalette.innerHTML = "";
+
+        for (let palette of palettes) {
+            let option = document.createElement("option");
+
+            option.value     = palette.id;
+            option.innerText = palette.name;
+
+            selectPalette.appendChild(option);
+        }
+    }
+
     function checkGameData() {
         if (textareaGameDataInput.value.length > 0) {
             buttonGameDataProceed.removeAttribute("disabled");
+            setPaletteDropdown();
         } else {
             buttonGameDataProceed.setAttribute("disabled", "disabled");
         }
@@ -127,19 +150,40 @@ async function run() {
             if ( ! cropperRendered) {
                 cropper.render("#crop");
                 cropperRendered = true;
+                buttonImageProceed.removeAttribute("disabled");
             }
 
             cropper.loadImage(e.target.result);
         }, "image");
     });
 
-    function addTiles() {
-        console.log(add_tiles());
+    function loadPreview() {
+        el("preview").setAttribute("src", get_preview());
+    }
+
+    function handleImage() {
+        console.log(load_image(cropper.getCroppedImage()));
+        loadPreview();
+    }
+
+    buttonImageProceed.addEventListener("click",    handleImage);
+    buttonImageProceed.addEventListener("touchend", handleImage);
+
+    checkboxDither.addEventListener("change", () => {
+        set_dither(checkboxDither.checked);
+    });
+
+    inputRoomName.addEventListener("change", () => {
+        set_room_name(inputRoomName.value);
+    });
+
+    function addRoom() {
+        console.log(add_room());
         textareaGameDataOutput.value = output();
     }
 
-    buttonImportGame.addEventListener("click",    addTiles);
-    buttonImportGame.addEventListener("touchend", addTiles);
+    buttonRoomProceed.addEventListener("click",    addRoom);
+    buttonRoomProceed.addEventListener("touchend", addRoom);
 
     function handleDownload() {
         download("output.bitsy", textareaGameDataOutput.value);

src/lib.rs

@@ -5,6 +5,7 @@ use image::{GenericImageView, Pixel, DynamicImage};
 use lazy_static::lazy_static;
 use std::sync::Mutex;
 use wasm_bindgen::prelude::*;
+use image::imageops::dither;
 
 const SD: u32 = 8;
 
@@ -13,6 +14,7 @@ struct State {
     image:     Option<DynamicImage>,
     room_name: Option<String>,
     palette:   Option<String>,
+    dither:    bool,
 }
 
 lazy_static! {
@@ -22,6 +24,7 @@ lazy_static! {
             image:     None,
             room_name: None,
             palette:   None,
+            dither:    true,
         }
     );
 }
@@ -38,6 +41,7 @@ fn tile_name(prefix: &Option<String>, index: &u32) -> Option<String> {
 pub fn load_default_game()  {
     let mut state = STATE.lock().unwrap();
     state.game = Some(bitsy_parser::mock::game_default());
+    state.palette = Some(bitsy_parser::mock::game_default().palette_ids()[0].clone())
 }
 
 #[wasm_bindgen]
@@ -47,11 +51,14 @@ pub fn load_game(game_data: String) -> String {
 
     match result {
         Ok(game) => {
+            let palette_id = game.palette_ids()[0].clone();
             state.game    = Some(game);
+            state.palette = Some(palette_id);
             "".to_string()
         },
         _ => {
             state.game    = None;
+            state.palette = None;
             format!("{}", result.err().unwrap())
         }
     }
@@ -84,6 +91,22 @@ pub fn load_image(image_base64: String) -> String {
     }.to_string()
 }
 
+#[wasm_bindgen]
+pub fn set_dither(dither: bool) {
+    let mut state = STATE.lock().unwrap();
+    state.dither = dither;
+}
+
+#[wasm_bindgen]
+pub fn set_palette(palette_id: String) {
+    let mut state = STATE.lock().unwrap();
+
+    match palette_id.is_empty() {
+        true  => { state.palette = None },
+        false => { state.palette = Some(palette_id) },
+    }
+}
+
 #[wasm_bindgen]
 pub fn set_room_name(room_name: String) {
     let mut state = STATE.lock().unwrap();
@@ -95,12 +118,52 @@ pub fn set_room_name(room_name: String) {
 }
 
 #[wasm_bindgen]
-pub fn set_palette(palette_id: String) {
-    let mut state = STATE.lock().unwrap();
+pub fn get_palettes() -> String {
+    let state = STATE.lock().unwrap();
 
-    match palette_id.is_empty() {
-        true  => { state.palette = None },
-        false => { state.palette = Some(palette_id) },
+    let mut palette_objects = json::JsonValue::new_array();
+
+    for palette in &state.game.as_ref().unwrap().palettes {
+        let mut object = json::JsonValue::new_object();
+
+        object.insert("id", palette.id.clone()).unwrap();
+
+        object.insert(
+            "name",
+            palette.name.clone().unwrap_or(
+                format!("Palette {}", palette.id))
+        ).unwrap();
+
+        palette_objects.push(object).unwrap();
+    }
+
+    json::stringify(palette_objects)
+}
+
+fn image_to_base64(image: &DynamicImage) -> String {
+    let mut bytes: Vec<u8> = Vec::new();
+    image.write_to(&mut bytes, image::ImageOutputFormat::Png).unwrap();
+    format!("data:image/png;base64,{}", base64::encode(&bytes))
+}
+
+fn render_preview(image: &DynamicImage) -> DynamicImage {
+    let image = image.clone();
+    let image = image.grayscale();
+
+    // todo dither
+
+    // todo convert to palette colours
+
+    image
+}
+
+#[wasm_bindgen]
+pub fn get_preview() -> String {
+    let state = STATE.lock().unwrap();
+
+    match &state.image.is_some() {
+        true  => image_to_base64(&render_preview(state.image.as_ref().unwrap())),
+        false => "".to_string(),
     }
 }
 
@@ -174,13 +237,38 @@ pub fn output() -> String {
 
 #[cfg(test)]
 mod test {
-    use crate::{add_tiles, load_image, load_default_game, output};
+    use crate::{add_room, load_image, load_default_game, output, get_preview};
+
+    #[test]
+    fn image_to_base64() {
+        let image = image::load_from_memory(include_bytes!("test-resources/test.png")).unwrap();
+        let output = crate::image_to_base64(&image);
+        let expected = include_str!("test-resources/test.png.base64").trim();
+        assert_eq!(output, expected);
+    }
+
+    #[test]
+    fn get_palettes() {
+        load_default_game();
+        let output = crate::get_palettes();
+        let expected = "[{\"id\":\"0\",\"name\":\"blueprint\"}]";
+        assert_eq!(output, expected);
+    }
+
+    #[test]
+    fn render_preview() {
+        load_default_game();
+        load_image(include_str!("test-resources/colour_input.png.base64").trim().to_string());
+        let output = get_preview();
+        let expected = include_str!("test-resources/colour_input.png.base64.greyscale").trim();
+        assert_eq!(output, expected);
+    }
 
     #[test]
     fn example() {
         load_default_game();
         load_image(include_str!("test-resources/test.png.base64").to_string());
-        add_tiles();
+        add_room();
 
         assert_eq!(output(), include_str!("test-resources/expected.bitsy"));
     }

src/test-resources/expected.bitsy

@@ -0,0 +1,136 @@
+Write your game's title here
+
+# BITSY VERSION 7.2
+
+! ROOM_FORMAT 1
+
+PAL 0
+NAME blueprint
+0,82,204
+128,159,255
+255,255,255
+
+ROOM 0
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+0,a,a,a,a,a,a,a,a,a,a,a,a,a,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,0,0,0,0,0,0,0,0,0,0,0,0,a,0
+0,a,a,a,a,a,a,a,a,a,a,a,a,a,a,0
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+NAME example room
+PAL 0
+
+TIL a
+11111111
+10000001
+10000001
+10011001
+10011001
+10000001
+10000001
+11111111
+NAME block
+
+TIL 2
+00011000
+00111000
+00011000
+00011000
+00011000
+00011000
+00011000
+00111100
+
+TIL 3
+00111100
+01100110
+01100110
+00001100
+00011000
+00110000
+01100000
+01111110
+
+TIL 4
+00111100
+01100110
+01100110
+00001100
+00001100
+01100110
+01100110
+00111100
+
+SPR A
+00011000
+00011000
+00011000
+00111100
+01111110
+10111101
+00100100
+00100100
+POS 0 4,4
+
+SPR a
+00000000
+00000000
+01010001
+01110001
+01110010
+01111100
+00111100
+00100100
+NAME cat
+DLG 0
+POS 0 8,12
+
+ITM 0
+00000000
+00000000
+00000000
+00111100
+01100100
+00100100
+00011000
+00000000
+NAME tea
+DLG 1
+
+ITM 1
+00000000
+00111100
+00100100
+00111100
+00010000
+00011000
+00010000
+00011000
+NAME key
+DLG 2
+
+DLG 0
+I'm a cat
+NAME cat dialog
+
+DLG 1
+You found a nice warm cup of tea
+NAME tea dialog
+
+DLG 2
+A key! {wvy}What does it open?{wvy}
+NAME key dialog
+
+VAR a
+42
+

src/test-resources/test.png.base64

@@ -0,0 +1 @@
+data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAQCAYAAACm53kpAAAAvElEQVR4nO2QQQrDMBAD6/8/upVSBMqClab2IWAP2M1qtgmovcFrgNYa7i96lWdO8nKi7oz6HkcBvWUo3FgKXo7PQpmTvJzy2XNiWgGEM/HM6fmaz54TpwLwiBvhjVnPhDPxzLny5Gpn1FceVcCoJ7/sOKcCKlC4sRS8O87EMyf55Ejy1dU58YgCerm46+ucOArA79/oI/U1ykXy1QntXHlSd9wluHX+52LsAnB2ATjLsgvA2QXgLMvyBXwAjqzoAQg4VfAAAAAASUVORK5CYII=