add sprite and rendering to engine js

scripts/components.js

@@ -15,6 +15,24 @@ var make_point_obj = function(o, p)
 
 var fullrect = [0,0,1,1];
 
+var sprite_addbucket = function(sprite)
+{
+  return;
+  var pp = sprite.gameobject.drawlayer.toString();
+  sprite_buckets[pp] ??= {};
+  sprite_buckets[pp][sprite.path] ??= {};
+  sprite_buckets[pp][sprite.path][sprite.guid] = sprite;
+}
+
+var sprite_rmbucket = function(sprite)
+{
+  return;
+  var pp = sprite.gameobject.drawlayer.toString();
+  if (!sprite_buckets[pp]) return;
+  if (!sprite_buckets[pp][sprite.path]) return;
+  delete sprite_buckets[pp][sprite.path][sprite.guid];
+}
+
 var sprite = {
   loop: true,
   rect: fullrect,
@@ -61,7 +79,10 @@ var sprite = {
       return;
     }
     if (p === this.path) return;
+    sprite_rmbucket(this);
     this._p = p;
+    sprite_addbucket(this);
+  
     this.del_anim?.();
     this.texture = game.texture(p);
     
@@ -74,12 +95,12 @@ var sprite = {
     this.play();
     
     this.pos = this.dimensions().scale(this.anchor);
-
   },
   get path() {
     return this._p;
   },
   kill() {
+    sprite_rmbucket(this);  
     this.del_anim?.();
     this.anim = undefined;
     this.gameobject = undefined;
@@ -111,6 +132,7 @@ var sprite = {
   height() { return this.dimensions().y; },
 };
 globalThis.allsprites = {};
+globalThis.sprite_buckets = [];
 
 sprite.doc = {
   path: "Path to the texture.",
@@ -152,8 +174,11 @@ component.sprite = function(obj) {
   sp.transform = obj.transform;
   sp.guid = prosperon.guid();
   allsprites[sp.guid] = sp;
+  sprite_addbucket(sp);
+  if (component.sprite.make_hook) component.sprite.make_hook(sp);
   return sp;
 }
+
 sprite.shade = [1,1,1,1];
 
 Object.mixin(os.make_seg2d(), {

scripts/engine.js

@@ -324,6 +324,25 @@ game.engine_start = function (s) {
       };
 
       render.init();
+
+      camera = make_camera();
+      camera.transform.pos = [0,0,-100];
+      camera.mode = "keep";
+      camera.break = "fit";
+      camera.size = game.size;
+      gamestate.camera = camera;
+
+      hudcam = make_camera();
+      hudcam.near = 0;
+      hudcam.size = camera.size;
+      hudcam.mode = "keep";
+      hudcam.break = "fit";
+
+      appcam = make_camera();
+      appcam.near = 0;
+      appcam.size = window.size;
+      appcam.transform.pos = [window.size.x,window.size.y,-100];
+      screencolor = render.screencolor();
     },
     process,
     window.size.x,
@@ -342,6 +361,141 @@ prosperon.release_mode = function()
 }
 prosperon.debug = true;
 
+// Returns an array in the form of [left, bottom, right, top] in pixels of the camera to render to
+// Camera viewport is [left,bottom,right,top] in relative values
+function camviewport()
+{
+  var aspect = (this.viewport[2]-this.viewport[0])/(this.viewport[3]-this.viewport[1])*window.size.x/window.size.y;
+  var raspect = this.size.x/this.size.y;
+
+  var left = this.viewport[0]*window.size.x;
+  var bottom = this.viewport[1]*window.size.y;
+
+  var usemode = this.mode;
+
+  if (this.break && this.size.x > window.size.x && this.size.y > window.size.y)
+    usemode = this.break;
+
+  if (usemode === "fit")
+    if (raspect < aspect) usemode = "height";
+    else usemode = "width";
+
+  switch(usemode) {
+    case "stretch":
+    case "expand":
+      return [0, 0, window.size.x, window.size.y];
+    case "keep":
+      return [left, bottom, left+this.size.x, bottom+this.size.y];
+    case "height":
+      var ret = [left, 0, this.size.x*(window.size.y/this.size.y), window.size.y];
+      ret[0] = (window.size.x-(ret[2]-ret[0]))/2;
+      return ret;
+    case "width":
+      var ret = [0, bottom, window.size.x, this.size.y*(window.size.x/this.size.x)];
+      ret[1] = (window.size.y-(ret[3]-ret[1]))/2;
+      return ret;
+  }
+
+  return [0, 0, window.size.x, window.size.y];
+}
+
+// pos is pixels on the screen, lower left[0,0]
+function camscreen2world(pos)
+{
+  var view = this.screen2cam(pos);
+  view.x *= this.size.x;
+  view.y *= this.size.y;
+  view = view.sub([this.size.x/2, this.size.y/2]);
+  view = view.add(this.pos.xy);
+  return view;
+}
+
+camscreen2world.doc = "Convert a view position for a camera to world."
+
+
+function screen2cam(pos)
+{
+  var viewport = this.view();
+  var width = viewport[2]-viewport[0];
+  var height = viewport[3]-viewport[1];
+  var left = pos.x-viewport[0];
+  var bottom = pos.y-viewport[1];
+  var p = [left/width, bottom/height];
+  return p;
+}
+
+screen2cam.doc = "Convert a screen space position in pixels to a normalized viewport position in a camera."
+
+function make_camera()
+{
+  var cam = world.spawn();
+  cam.near = 0.1;
+  cam.far = 1000;
+  cam.ortho = true;
+  cam.viewport = [0,0,1,1];
+  cam.size = window.size.slice(); // The render size of this camera in pixels
+  // In ortho mode, this determines how many pixels it will see
+  cam.mode = "stretch";
+  cam.screen2world = camscreen2world;
+  cam.screen2cam = screen2cam;
+
+  cam.mousepos = function() { return this.screen2world(input.mouse.screenpos()); }
+  cam.view = camviewport;
+  cam.offscreen = false;
+  return cam;
+}
+
+var camera;
+var hudcam;
+var appcam;
+var screencolor;
+
+prosperon.render = function()
+{
+  render.set_camera(camera);
+  render.sprites();
+  prosperon.draw();
+  hudcam.size = camera.size;
+  hudcam.transform.pos = [hudcam.size.x/2, hudcam.size.y/2, -100];
+  render.set_camera(hudcam);
+
+  prosperon.hud();
+  render.flush_text();
+
+  render.end_pass();
+
+  /* draw the image of the game world first */
+  render.glue_pass();
+  render.viewport(...camera.view());
+  render.use_shader(render.postshader);
+  render.use_mat({diffuse:screencolor});
+  render.draw(shape.quad);
+
+  // Flush & render
+  appcam.transform.pos = [window.size.x/2, window.size.y/2, -100];
+  appcam.size = window.size.slice();
+  if (os.sys() !== 'macos')
+    appcam.size.y *= -1;
+
+  render.set_camera(appcam);
+  render.viewport(...appcam.view());
+
+  // Call gui functions
+  mum.style = mum.dbg_style;
+  prosperon.gui();
+  if (mum.drawinput) mum.drawinput();
+  prosperon.gui_dbg();
+  render.flush_text();
+  mum.style = mum.base;
+
+  render.imgui_new(window.size.x, window.size.y, 0.01);
+//  if (gfx_gui) render.gfx_gui();
+  render.imgui_end();
+
+  render.end_pass();
+  render.commit();
+}
+
 function process() {
   var startframe = profile.now();
   var dt = profile.secs(profile.now()) - frame_t;

scripts/entity.js

@@ -354,6 +354,7 @@ dup(diff) {
       this.components[key].enabled = false;
       delete this.components[key];
     }
+    
     delete this.components;
   
     this.clear();
@@ -367,7 +368,6 @@ dup(diff) {
     }
   },
   
-  
   make_objs(objs) {
     for (var prop in objs) {
       say(`spawning ${json.encode(objs[prop])}`);

scripts/mum.js

@@ -274,3 +274,41 @@ mum.ex_hud = function()
   mum.label("TOP RIGHT", {pos:game.size, anchor:[1,1]});
   mum.label("BOTTOM RIGHT", {pos:[game.size.x, 0], anchor:[1,0]});
 }
+
+mum.drawinput = undefined;
+var ptext = "";
+var panpan = {
+  draw() {
+    mum.rectangle({pos:[0,0], anchor:[0,0], height:20, width: window.size.x, padding:[10,16], color:Color.black});
+    mum.label("input level: ");
+    mum.label(ptext, {offset:[50,0], color:Color.red});
+  },
+  inputs: {
+    block: true,
+    char(c) {
+      ptext += c
+    },
+    enter() {
+      delete mum.drawinput;
+      player[0].uncontrol(panpan);
+    },
+    escape() {
+      delete mum.drawinput;
+      player[0].uncontrol(panpan);
+    },
+    backspace() {
+      ptext = ptext.slice(0,ptext.length-1);
+    }
+  },
+}
+
+mum.textinput = function (fn, str = "") {
+  mum.drawinput = panpan.draw;
+  ptext = str;
+  player[0].control(panpan);
+  panpan.inputs.enter = function() {
+    fn(ptext);
+    delete mum.drawinput;
+    player[0].uncontrol(panpan);
+  }
+}

scripts/particle.js

@@ -108,7 +108,7 @@ var make_emitter = function()
 {
   var e = Object.create(emitter);
   e.ssbo = render.make_textssbo();
-  e.shape = shape.quad;
+  e.shape = shape.centered_quad;
   e.shader = render.make_shader("shaders/baseparticle.cg");
   e.dead = [];
   return e;

scripts/render.js

@@ -444,6 +444,8 @@ var parshader;
 var spritessboshader;
 var polyssboshader;
 
+var sprite_ssbo;
+
 render.init = function() {
   textshader = render.make_shader("shaders/text_base.cg");
   render.spriteshader = render.make_shader("shaders/sprite.cg");
@@ -456,6 +458,7 @@ render.init = function() {
   polyssboshader = render.make_shader("shaders/poly_ssbo.cg");
   textssbo = render.make_textssbo();
   poly_ssbo = render.make_textssbo();
+  sprite_ssbo = render.make_textssbo();
   
   render.textshader = textshader;
   
@@ -489,6 +492,30 @@ render.init = function() {
   }
 }
 
+render.sprites = function(gridsize = 1)
+{
+  var sps = Object.values(allsprites);
+  var sprite_buckets = {};
+  for (var sprite of sps) {
+    var pp = sprite.gameobject.drawlayer.toString();
+    sprite_buckets[pp] ??= {};
+    sprite_buckets[pp][sprite.path] ??= {};
+    sprite_buckets[pp][sprite.path][sprite.guid] = sprite;
+  }
+  
+  render.use_shader(spritessboshader);
+  for (var bucket of Object.values(sprite_buckets)){
+    for (var img of Object.values(bucket)) {
+       var sparray = Object.values(img);
+       if (sparray.length === 0) continue;
+       var ss = sparray[0];
+       render.use_mat(ss);
+       render.make_sprite_ssbo(Object.values(sparray), sprite_ssbo);
+       render.draw(shape.quad, sprite_ssbo, sparray.length);
+    }
+  }
+}
+
 render.circle = function(pos, radius, color) {
   check_flush();
   var mat = {

shaders/baseparticle.cg

@@ -19,15 +19,13 @@ readonly buffer ssbo {
 out vec2 uv;
 out vec4 color0;
 
-vec2 pos;
 uniform mat4 vp;
 
 void main()
 {
   particle p = par[gl_InstanceIndex];
-  pos = a_pos - 0.5;
-  gl_Position = vp * p.model * vec4(pos, 0.0, 1.0);
-  uv = a_pos;
+  gl_Position = vp * p.model * vec4(a_pos, 0.0, 1.0);
+  uv = a_uv;
   color0 = p.color;
 }
 @end

source/engine/jsffi.c

@@ -1533,9 +1533,9 @@ static const JSCFunctionListEntry js_physics_funcs[] = {
   CGETSET_ADD(physics, collision_persistence),
 };
 
-JSC_GETSET_APPLY(transform, pos, vec3)
-JSC_GETSET_APPLY(transform, scale, vec3)
-JSC_GETSET_APPLY(transform, rotation, quat)
+JSC_GETSET(transform, pos, vec3)
+JSC_GETSET(transform, scale, vec3)
+JSC_GETSET(transform, rotation, quat)
 JSC_CCALL(transform_move, transform_move(js2transform(self), js2vec3(argv[0])); )
 
 JSC_CCALL(transform_lookat,

source/engine/transform.c

@@ -56,6 +56,8 @@ HMM_Vec3 mat3_t_dir(HMM_Mat4 m, HMM_Vec3 dir)
 }
 
 HMM_Mat4 transform2mat(transform *t) {
+  return HMM_M4TRS(t->pos, t->rotation, t->scale);
+  
   if (t->dirty) {
     t->cache = HMM_M4TRS(t->pos, t->rotation, t->scale);
     t->dirty = 0;