From 8a063850a5f7e50522e8257ce0c889dd78e3ed88 Mon Sep 17 00:00:00 2001
From: John Alanbrook <john@pockle.world>
Date: Sun, 19 Jan 2025 14:28:23 -0600
Subject: [PATCH] sprite

---
 scripts/sprite.js | 220 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 220 insertions(+)
 create mode 100644 scripts/sprite.js

diff --git a/scripts/sprite.js b/scripts/sprite.js
new file mode 100644
index 00000000..50e09a2f
--- /dev/null
+++ b/scripts/sprite.js
@@ -0,0 +1,220 @@
+globalThis.so_sprite_qt = os.make_rtree();
+  var sprite = {
+    image: undefined,
+    get diffuse() { return this.image; },
+    set diffuse(x) {},
+    set color(x) {
+      this._sprite.color = x;
+    },
+    get color() { return this._sprite.color; },
+    anim_speed: 1,
+    play(str, loop = true, reverse = false, fn) {
+      if (!this.animset) {
+//      console.warn(`Sprite has no animset when trying to play ${str}`);
+        fn?.();
+        return;
+//      return parseq.imm();
+      }
+    
+      if (typeof str === 'string') {
+        if (!this.animset[str])  {
+          fn?.();
+          return;
+        }
+        this.anim = this.animset[str];
+      }
+
+      var playing = this.anim;
+    
+      var stop;
+
+      this.del_anim?.();
+      self.del_anim = function () {
+        self.del_anim = undefined;
+        self = undefined;
+        advance = undefined;
+        stop?.();
+      };
+
+      var f = 0;
+      if (reverse) f = playing.frames.length - 1;
+
+    function advance(time) {
+      if (!self) return;
+
+      var done = false;
+      if (reverse) {
+        f = (((f - 1) % playing.frames.length) + playing.frames.length) % playing.frames.length;
+        if (f === playing.frames.length - 1) done = true;
+      } else {
+        f = (f + 1) % playing.frames.length;
+        if (f === 0) done = true;
+      }
+
+      self.image = playing.frames[f];
+
+      if (done) {
+        // notify requestor
+        fn?.();
+        if (!loop) {
+          self?.stop();
+          return;
+        }
+      }
+      
+      return playing.frames[f].time/self.anim_speed;
+    }
+    stop = self.delay(advance, playing.frames[f].time/self.anim_speed);
+    advance();
+  },
+  tex_sync() {
+    if (this.anim) this.stop();
+    if (!this.image) return
+    this.play();
+    this.transform.scale = [this.image.texture.width, this.image.texture.height];
+    this._sprite.set_image(this.image);
+  },
+  stop() {
+    this.del_anim?.();
+  },
+  set path(p) {
+
+    var image = game.texture(p);
+    if (!image) {
+      console.warn(`Could not find image ${p}.`);
+      return;
+    }
+
+    this._p = p;
+
+    this.del_anim?.();
+    if (image.texture)
+      this.image = image;
+    else if (image.frames) {
+      // It's an animation
+      this.anim = image;      
+      this.image = image.frames[0];
+      this.animset = [this.anim]
+    } else {
+      // Maybe an animset; try to grab the first one
+      for (var anim in image) {
+        if (image[anim].frames) {
+          this.anim = image[anim];
+          this.image = image[anim].frames[0];
+          this.animset = image;
+          break;
+        }
+      }
+    }
+    
+    this.tex_sync();
+  },
+  get path() {
+    return this._p;
+  },
+  garbage: function() {
+    console.log("KILLING SPRITE")
+    this.del_anim?.();
+    this.anim = undefined;
+    so_sprite_qt.remove(this._sprite)
+  },
+  anchor: [0, 0],
+  set layer(v) { this._sprite.layer = v; },
+  get layer() { return this._sprite.layer; },
+  pick() {
+    return this;
+  },
+  boundingbox() {
+    var dim = this.dimensions();
+    var realpos = dim.scale(0.5).add(this.pos);
+    return bbox.fromcwh(realpos, dim);
+  }
+};
+
+sprite.setanchor = function (anch) {
+  var off = [0, 0];
+  switch (anch) {
+    case "ll":
+      break;
+    case "lm":
+      off = [-0.5, 0];
+      break;
+    case "lr":
+      off = [-1, 0];
+      break;
+    case "ml":
+      off = [0, -0.5];
+      break;
+    case "mm":
+      off = [-0.5, -0.5];
+      break;
+    case "mr":
+      off = [-1, -0.5];
+      break;
+    case "ul":
+      off = [0, -1];
+      break;
+    case "um":
+      off = [-0.5, -1];
+      break;
+    case "ur":
+      off = [-1, -1];
+      break;
+  }
+  this.anchor = off;
+  this.pos = this.dimensions().scale(off);
+};
+
+sprite.inputs = {};
+sprite.inputs.kp9 = function () {
+  this.setanchor("ll");
+};
+sprite.inputs.kp8 = function () {
+  this.setanchor("lm");
+};
+sprite.inputs.kp7 = function () {
+  this.setanchor("lr");
+};
+sprite.inputs.kp6 = function () {
+  this.setanchor("ml");
+};
+sprite.inputs.kp5 = function () {
+  this.setanchor("mm");
+};
+sprite.inputs.kp4 = function () {
+  this.setanchor("mr");
+};
+sprite.inputs.kp3 = function () {
+  this.setanchor("ur");
+};
+sprite.inputs.kp2 = function () {
+  this.setanchor("um");
+};
+sprite.inputs.kp1 = function () {
+  this.setanchor("ul");
+};
+
+sprite.t_hook = function() {
+  console.log("SHIFT")
+  var msp = this.sprite;
+  so_sprite_qt.remove(msp);
+  msp.rect = this.torect()
+  msp.set_affine(this)
+  so_sprite_qt.insert(msp)
+  console.log("BOTTOM")
+}
+
+return sprite;
+
+---
+
+if (!this.overling.transform) throw new Error("Overling must have a transform to have a sprite")
+
+this.transform = os.make_transform();
+this.transform.parent = this.overling.transform;
+this.transform.change_hook = $.t_hook;
+
+var msp = os.make_sprite();  
+this._sprite = msp; 
+msp.color = Color.white;
+this.transform.sprite = msp