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+/* SPDX-License-Identifier: MIT */
+/*
+ * konpicture.h
+ *
+ * Copyright (c) 2026 KonAki
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef KONPICTURE_H
+#define KONPICTURE_H
+
+#include "konsofren.h"
+#include "kon2d.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*** definition ***/
+
+/* pictures drawn over the screen that can be moved, faded, turned and tinted, the way RPG Maker has them: a number of slots
+ drawn in order so a higher one is in front, each a picture with a place, a scale in percent, an opacity from 0 to 255,
+ a blend, an angle and a tone. all the times are in frames at 60 a second, like RPG Maker counts them.
+ a number that isn't a slot does nothing, so a bad script can't write outside of them */
+
+#define KON_PICTURES 100
+#define KON_PICTURE_NAME 64
+
+/* gives the image for a name, or NULL. the pictures do not own what it gives, whoever made the image keeps it until the picture is
+ erased or replaced */
+typedef const kon_image *(*kon_pictureLoad)(const char *name, void *user);
+
+typedef struct kon_picture {
+ int shown;
+ char name[KON_PICTURE_NAME];
+ const kon_image *image;
+ int origin; /* 0 top left, 1 middle */
+ int blend; /* a kon_blend_t: 0 normal, 1 add, 2 multiply, 3 screen */
+ kon_tween_t x, y, scaleX, scaleY, opacity;
+ kon_tween_t tone[4]; /* red, green, blue added from -255 to 255 and gray from 0 to 255 */
+ float angle; /* radians */
+ float turn; /* RPG Maker's rotation speed */
+ kon_image *toned; /* a copy with the tone in it, made when there is one to apply */
+ int tonedFor[4];
+} kon_picture_t;
+
+typedef struct kon_pictures {
+ kon_picture_t slot[KON_PICTURES];
+ kon_pictureLoad load;
+ void *user;
+} kon_pictures_t;
+
+/*** pictures ***/
+
+void kon_picturesInit(kon_pictures_t *pictures, kon_pictureLoad load, void *user);
+void kon_picturesFree(kon_pictures_t *pictures);
+
+/* id is 1 to KON_PICTURES. scale is a percent. this puts everything back as given, a picture that is already there is replaced */
+void kon_pictureShow(kon_pictures_t *pictures, int id, const char *name, int origin, int x, int y, int scaleX, int scaleY, int opacity, int blend);
+
+/* goes to the new values over frames, with easing 0 constant, 1 slow start, 2 slow end, 3 slow both. 0 frames is at once */
+void kon_pictureMove(kon_pictures_t *pictures, int id, int origin, int x, int y, int scaleX, int scaleY, int opacity, int blend, int frames, int easing);
+
+/* turns clockwise, speed is RPG Maker's: half a degree a frame for each 1. 0 stops it */
+void kon_pictureRotate(kon_pictures_t *pictures, int id, int speed);
+void kon_pictureTint(kon_pictures_t *pictures, int id, int red, int green, int blue, int gray, int frames);
+void kon_pictureErase(kon_pictures_t *pictures, int id);
+
+void kon_picturesUpdate(kon_pictures_t *pictures, float dt);
+/* draws the shown ones in order, a made copy of a toned picture is kept in the slot, which is why this changes the pictures */
+void kon_picturesDraw(kon_pictures_t *pictures, kon_framebuffer_t *fb);
+
+/* 1 while any picture is still moving or changing tone, what a "wait" in a script waits for */
+int kon_picturesBusy(const kon_pictures_t *pictures);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* KONPICTURE_H */