diff --git a/scripts/base.js b/scripts/base.js
index 38ac74a..585a527 100644
--- a/scripts/base.js
+++ b/scripts/base.js
@@ -465,7 +465,7 @@ Object.defineProperty(String.prototype, 'fromfirst', {
   value: function(val) {
     var idx = this.indexOf(val);
     if (idx === -1) return this;
-    return this.slice(idx+1);
+    return this.slice(idx+val.length);
   }
 });
 
diff --git a/scripts/editor.js b/scripts/editor.js
index 24575ef..74fa688 100644
--- a/scripts/editor.js
+++ b/scripts/editor.js
@@ -676,6 +676,11 @@ var editor = {
 }
 
 editor.inputs = {};
+editor.inputs.f9 = function() {
+  Log.warn("CAPTURING");
+  cmd(173, "capture.bmp", 0, 0, 500, 500);
+}
+
 editor.inputs.post = function() {
   if (editor.sel_comp && 'sync' in editor.sel_comp) editor.sel_comp.sync();
 };
diff --git a/scripts/engine.js b/scripts/engine.js
index 5a79672..2808837 100644
--- a/scripts/engine.js
+++ b/scripts/engine.js
@@ -639,6 +639,26 @@ var game_quit = function()
 
 Signal.register("quit", game_quit);
 
+var Event = {
+  events: {},
+
+  observe(name, obj, fn) {
+    this.events[name] ??= [];
+    this.events[name].push([obj, fn]);
+  },
+
+  unobserve(name, obj) {
+    this.events[name] = this.events[name].filter(x => x[0] !== obj);
+  },
+
+  notify(name) {
+    if (!this.events[name]) return;
+    this.events[name].forEach(function(x) {
+      x[1].call(x[0]);
+    });
+  },
+};
+
 var Window = {
   fullscreen(f) { cmd(145, f); },
   set width(w) { cmd(125, w); },
diff --git a/scripts/entity.js b/scripts/entity.js
index 8ffc3d0..c65cf23 100644
--- a/scripts/entity.js
+++ b/scripts/entity.js
@@ -255,7 +255,6 @@ var gameobject = {
       get layer() { cmd(77,this.body); },
       alive() { return this.body >= 0; },
       in_air() { return q_body(7, this.body);},
-      on_ground() { return !this.in_air(); },
 
   hide() { this.components.forEach(function(x) { x.hide(); }); this.objects.forEach(function(x) { x.hide(); }); },
   show() { this.components.forEach(function(x) { x.show(); }); this.objects.forEach(function(x) { x.show(); }); },
@@ -321,6 +320,13 @@ var gameobject = {
     if (typeof obj.gui === 'function')
       Register.gui.register(obj.gui,obj);
 
+    for (var k in obj) {
+      if (!k.startswith("on_")) continue;
+      var signal = k.fromfirst("on_");
+      Event.observe(signal, obj, obj[k]);
+      Log.warn("REGISTERED " + signal);
+    };
+
     obj.components.forEach(function(x) {
       if (typeof x.collide === 'function')
         register_collide(1, x.collide, x, obj.body, x.shape);
diff --git a/source/engine/gameobject.c b/source/engine/gameobject.c
index c16450d..6f49bca 100644
--- a/source/engine/gameobject.c
+++ b/source/engine/gameobject.c
@@ -114,8 +114,8 @@ transform3d go2t3(gameobject *go)
   t.scale = go->scale;
   t.scale.Z = go->scale.X;
   t.rotation = HMM_QFromAxisAngle_RH(vFWD, go2angle(go));
-  t.rotation = HMM_MulQ(HMM_QFromAxisAngle_RH(vRIGHT, -t.pos.Y/70), t.rotation);
-  t.rotation = HMM_MulQ(HMM_QFromAxisAngle_RH(vUP, t.pos.X/70), t.rotation);
+  t.rotation = HMM_MulQ(HMM_QFromAxisAngle_RH(vRIGHT, -t.pos.Y/100), t.rotation);
+  t.rotation = HMM_MulQ(HMM_QFromAxisAngle_RH(vUP, t.pos.X/100), t.rotation);
   return t;
 }
 
diff --git a/source/engine/jsffi.c b/source/engine/jsffi.c
index 8528329..177555f 100644
--- a/source/engine/jsffi.c
+++ b/source/engine/jsffi.c
@@ -1190,6 +1190,10 @@ JSValue duk_cmd(JSContext *js, JSValueConst this, int argc, JSValueConst *argv)
     case 172:
      js2go(argv[1])->drawlayer = js2number(argv[2]);
      break;
+   case 173:
+     str = js2str(argv[1]);
+     capture_screen(js2number(argv[2]), js2number(argv[3]), js2number(argv[4]), js2number(argv[5]), str);
+     break;
   }
 
   if (str)
diff --git a/source/engine/render.c b/source/engine/render.c
index 215351e..8514bd7 100644
--- a/source/engine/render.c
+++ b/source/engine/render.c
@@ -15,6 +15,7 @@
 #include "resources.h"
 #include "yugine.h"
 #include "sokol/sokol_app.h"
+#include "stb_image_write.h"
 
 #include "crt.sglsl.h"
 #include "box.sglsl.h"
@@ -46,6 +47,16 @@ static struct {
   char *buffer;
 } gif;
 
+static struct {
+  sg_shader shader;
+  sg_pipeline pipe;
+  sg_bindings bind;
+  sg_pass pass;
+  sg_image img;
+  sg_image depth_img;
+} crt_post;
+
+
 MsfGifState gif_state = {};
 void gif_rec_start(int w, int h, int cpf, int bitdepth)
 {
@@ -100,6 +111,17 @@ void gif_rec_end(char *path)
   gif.rec = 0;
 }
 
+void capture_screen(int x, int y, int w, int h, char *path)
+{
+  int n = 4;
+  void *data = malloc(w*h*n);
+  sg_query_pixels(0,0,w,h,1,data,w*h*sizeof(char)*n);
+//  sg_query_image_pixels(crt_post.img, crt_post.bind.fs.samplers[0], data, w*h*4);  
+  stbi_write_png("cap.png", w, h, n, data, n*w);
+//  stbi_write_bmp("cap.bmp", w, h, n, data);
+  free(data);
+}
+
 #include "sokol/sokol_app.h"
 
 #include "HandmadeMath.h"
@@ -170,14 +192,6 @@ static struct {
   sg_shader shader;
 } sg_shadow;
 
-static struct {
-  sg_shader shader;
-  sg_pipeline pipe;
-  sg_bindings bind;
-  sg_pass pass;
-  sg_image img;
-  sg_image depth_img;
-} crt_post;
 
 void trace_make_image(const sg_image_desc *d, sg_image result, void *data)
 {
diff --git a/source/engine/render.h b/source/engine/render.h
index 10051ad..9b01ef4 100644
--- a/source/engine/render.h
+++ b/source/engine/render.h
@@ -70,6 +70,7 @@ void opengl_rendermode(enum RenderMode r);
 
 void openglInit3d(struct window *window);
 void openglRender3d(struct window *window, struct mCamera *camera);
+void capture_screen(int x, int y, int w, int h, char *path);
 
 void render_winsize();
 
diff --git a/source/engine/texture.c b/source/engine/texture.c
index 24ccb18..97709c5 100644
--- a/source/engine/texture.c
+++ b/source/engine/texture.c
@@ -229,7 +229,7 @@ struct Texture *texture_fromdata(void *raw, long size)
   void *data = stbi_load_from_memory(raw, size, &tex->width, &tex->height, &n, 4);
 
   if (data == NULL) {
-    YughError("Given raw data no valid. Loading default instead.");
+    YughError("Given raw data not valid. Loading default instead.");
     return texture_notex();
   }