From 50bee7a5c0d780e879bd0da2870b37fe4147502a Mon Sep 17 00:00:00 2001
From: John Alanbrook <john@pockle.world>
Date: Sat, 3 Jan 2026 08:25:55 -0600
Subject: [PATCH] world

---
 compositor.cm  |  6 ++++--
 particles2d.cm |  5 +++++
 sprite.cm      | 44 +++++++++++++++++++++++---------------------
 tilemap2d.cm   | 18 +++++++++++-------
 world.cm       |  7 +++++++
 5 files changed, 50 insertions(+), 30 deletions(-)
 create mode 100644 world.cm

diff --git a/compositor.cm b/compositor.cm
index 8e0458ce..d0c21044 100644
--- a/compositor.cm
+++ b/compositor.cm
@@ -13,6 +13,8 @@
 
 var effects_mod = use('effects')
 
+var gpu = use('sdl_gpu')
+
 var compositor = {}
 
 // Presentation modes
@@ -32,7 +34,7 @@ compositor.BLEND = {
 }
 
 // Compile a composition tree into a render plan
-compositor.compile = function(comp, renderers, backend) {
+compositor.compile = function(comp, renderers, backend = gpu) {
   var ctx = {
     renderers: renderers,
     backend: backend,
@@ -555,7 +557,7 @@ compositor.calculate_presentation_rect = function(source_size, dest_size, mode)
 }
 
 // Execute a compiled render plan
-compositor.execute = function(plan, renderers, backend) {
+compositor.execute = function(plan, renderers, backend = gpu) {
   var target_cache = {}
 
   // Pre-allocate targets
diff --git a/particles2d.cm b/particles2d.cm
index e69de29b..914064d8 100644
--- a/particles2d.cm
+++ b/particles2d.cm
@@ -0,0 +1,5 @@
+
+
+return function() {
+
+}
\ No newline at end of file
diff --git a/sprite.cm b/sprite.cm
index 564cae88..c59bcfd5 100644
--- a/sprite.cm
+++ b/sprite.cm
@@ -2,27 +2,9 @@
 //
 // Returns a function that creates sprite instances via meme()
 
+var dirty = {}
+
 var sprite = {
-  type: 'sprite',
-  pos: null,
-  layer: 0,
-  image: null,
-  width: 1,
-  height: 1,
-  anchor_x: 0,
-  anchor_y: 0,
-  scale_x: 1,
-  scale_y: 1,
-  color: null,
-  uv_rect: null,
-  slice: null,
-  tile: null,
-  material: null,
-  opacity: 1,
-  
-  // Dirty tracking
-  dirty: 7, // DIRTY.ALL
-  
   // Setters that mark dirty
   set_pos: function(x, y) {
     if (!this.pos) this.pos = {x: 0, y: 0}
@@ -79,5 +61,25 @@ stone(sprite)
 
 // Factory function
 return function(props) {
-  return meme(sprite, props)
+  var defaults = {
+    pos: {x:0,y:0},
+    layer: 0,
+    image: null,
+    width: 1,
+    height: 1,
+    anchor_x: 0,
+    anchor_y: 0,
+    scale_x: 1,
+    scale_y: 1,
+    color: null,
+    uv_rect: null,
+    slice: null,
+    tile: null,
+    material: null,
+    opacity: 1,
+  }
+
+  var newsprite = meme(sprite, [defaults,props])
+  newsprite[dirty] = 7
+  return newsprite
 }
\ No newline at end of file
diff --git a/tilemap2d.cm b/tilemap2d.cm
index b7fd6091..46538dd8 100644
--- a/tilemap2d.cm
+++ b/tilemap2d.cm
@@ -1,11 +1,5 @@
 // tilemap.js - MUCH SIMPLER
 var tilemap = {
-  tiles: [],  // Just strings: [['grass', 'dirt'], ['stone', null]]
-  offset_x: 0,
-  offset_y: 0,
-  layer: 0,
-  tile_width: 1,   // world units
-  tile_height: 1,
   at(pos) {
     var x = pos.x - this.offset_x
     var y = pos.y - this.offset_y
@@ -30,5 +24,15 @@ var tilemap = {
 stone(tilemap)
 
 return function(props) {
-  return meme(tilemap, props)
+  var defaults = {
+    tiles: [],
+    offset_x: 0,
+    offset_y: 0,
+    layer: 0,
+    tile_width: 1,
+    tile_height: 1,
+  }
+  var newtilemap = meme(tilemap, [defaults,props])
+  newtilemap.tiles = []
+  return newtilemap
 }
diff --git a/world.cm b/world.cm
new file mode 100644
index 00000000..fd881274
--- /dev/null
+++ b/world.cm
@@ -0,0 +1,7 @@
+var world = {}
+
+
+
+return function() {
+  return meme(world)
+}
\ No newline at end of file