--- a/src/libmlk-core-js/CMakeLists.txt	Sat Oct 16 22:17:09 2021 +0200
+++ b/src/libmlk-core-js/CMakeLists.txt	Sun Oct 17 18:10:01 2021 +0200
@@ -34,6 +34,8 @@
 	${libmlk-core-js_SOURCE_DIR}/core/js-painter.h
 	${libmlk-core-js_SOURCE_DIR}/core/js-sound.c
 	${libmlk-core-js_SOURCE_DIR}/core/js-sound.h
+	${libmlk-core-js_SOURCE_DIR}/core/js-sprite.c
+	${libmlk-core-js_SOURCE_DIR}/core/js-sprite.h
 	${libmlk-core-js_SOURCE_DIR}/core/js-texture.c
 	${libmlk-core-js_SOURCE_DIR}/core/js-texture.h
 	${libmlk-core-js_SOURCE_DIR}/core/js-window.c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-core-js/core/js-sprite.c	Sun Oct 17 18:10:01 2021 +0200
@@ -0,0 +1,142 @@
+/*
+ * js-sprite.c -- core sprite binding
+ *
+ * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include <core/alloc.h>
+#include <core/sprite.h>
+
+#include "js-sprite.h"
+#include "js-texture.h"
+
+#define SIGNATURE DUK_HIDDEN_SYMBOL("Mlk.Sprite")
+#define TEXREF DUK_HIDDEN_SYMBOL("Mlk.Sprite.texture")
+
+static inline struct sprite *
+self(duk_context *ctx)
+{
+	struct sprite *sprite;
+
+	duk_push_this(ctx);
+	duk_get_prop_string(ctx, -1, SIGNATURE);
+	sprite = duk_to_pointer(ctx, -1);
+	duk_pop_2(ctx);
+
+	if (!sprite)
+		duk_error(ctx, DUK_ERR_TYPE_ERROR, "not a Sprite object");
+
+	return sprite;
+}
+
+static duk_ret_t
+Sprite_constructor(duk_context *ctx)
+{
+	struct sprite *sprite;
+	struct texture *tex = js_texture_require(ctx, 0);
+	const unsigned int cellw = duk_require_uint(ctx, 1);
+	const unsigned int cellh = duk_require_uint(ctx, 2);
+
+	sprite = alloc_new0(sizeof (*sprite));
+	sprite_init(sprite, tex, cellw, cellh);
+
+	duk_push_this(ctx);
+	duk_push_pointer(ctx, sprite);
+	duk_put_prop_string(ctx, -2, SIGNATURE);
+
+	/* Store a copy of texture to avoid destruction. */
+	duk_dup(ctx, 0);
+	duk_put_prop_string(ctx, -2, TEXREF);
+
+	duk_pop(ctx);
+
+	return 0;
+}
+
+static duk_ret_t
+Sprite_destructor(duk_context *ctx)
+{
+	duk_get_prop_string(ctx, 0, SIGNATURE);
+	free(duk_to_pointer(ctx, -1));
+	duk_pop(ctx);
+	duk_del_prop_string(ctx, 0, SIGNATURE);
+
+	/* Remove texture reference. */
+	duk_del_prop_string(ctx, 0, TEXREF);
+
+	return 0;
+}
+
+static duk_ret_t
+Sprite_draw(duk_context *ctx)
+{
+	const struct sprite *sprite = self(ctx);
+	const unsigned int r = duk_require_uint(ctx, 0);
+	const unsigned int c = duk_require_uint(ctx, 1);
+	const int x = duk_require_int(ctx, 2);
+	const int y = duk_require_int(ctx, 3);
+
+	if (r >= sprite->nrows)
+		duk_error(ctx, DUK_ERR_RANGE_ERROR, "row overflow: %u >= %u", r, sprite->nrows);
+	if (c >= sprite->ncols)
+		duk_error(ctx, DUK_ERR_RANGE_ERROR, "column overflow: %u >= %u", c, sprite->ncols);
+
+	sprite_draw(sprite, r, c, x, y);
+
+	return 0;
+}
+
+static duk_ret_t
+Sprite_scale(duk_context *ctx)
+{
+	const struct sprite *sprite = self(ctx);
+	const unsigned int r = duk_require_uint(ctx, 0);
+	const unsigned int c = duk_require_uint(ctx, 1);
+	const int x = duk_require_int(ctx, 2);
+	const int y = duk_require_int(ctx, 3);
+	const unsigned int w = duk_require_uint(ctx, 4);
+	const unsigned int h = duk_require_uint(ctx, 5);
+
+	if (r >= sprite->nrows)
+		duk_error(ctx, DUK_ERR_RANGE_ERROR, "row overflow: %u >= %u", r, sprite->nrows);
+	if (c >= sprite->ncols)
+		duk_error(ctx, DUK_ERR_RANGE_ERROR, "column overflow: %u >= %u", c, sprite->ncols);
+
+	sprite_scale(sprite, r, c, x, y, w, h);
+
+	return 0;
+}
+
+static const duk_function_list_entry methods[] = {
+	{ "draw",               Sprite_draw,            4               },
+	{ "scale",              Sprite_scale,           6               },
+	{ NULL,                 NULL,                   0               }
+};
+
+void
+js_sprite_bind(duk_context *ctx)
+{
+	assert(ctx);
+
+	duk_push_c_function(ctx, Sprite_constructor, 3);
+	duk_push_object(ctx);
+	duk_put_function_list(ctx, -1, methods);
+	duk_push_c_function(ctx, Sprite_destructor, 1);
+	duk_set_finalizer(ctx, -2);
+	duk_put_prop_string(ctx, -2, "prototype");
+	duk_put_global_string(ctx, "Sprite");
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-core-js/core/js-sprite.h	Sun Oct 17 18:10:01 2021 +0200
@@ -0,0 +1,27 @@
+/*
+ * js-sprite.h -- core sprite binding
+ *
+ * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef MLK_CORE_JS_SPRITE_H
+#define MLK_CORE_JS_SPRITE_H
+
+#include <duktape.h>
+
+void
+js_sprite_bind(duk_context *);
+
+#endif /* !MLK_CORE_JS_SPRITE_H */

--- a/src/mlk-run/main.c	Sat Oct 16 22:17:09 2021 +0200
+++ b/src/mlk-run/main.c	Sun Oct 17 18:10:01 2021 +0200
@@ -33,6 +33,7 @@
 #include <core/js-music.h>
 #include <core/js-painter.h>
 #include <core/js-sound.h>
+#include <core/js-sprite.h>
 #include <core/js-texture.h>
 #include <core/js-window.h>
 
@@ -60,6 +61,7 @@
 	js_music_bind(ctx);
 	js_painter_bind(ctx);
 	js_sound_bind(ctx);
+	js_sprite_bind(ctx);
 	js_texture_bind(ctx);
 	js_window_bind(ctx);
 }