feat: P.0.lib.render integration — render hook + tile colors + lib-core.render dep

init.lua

@@ -1,14 +1,13 @@
-local maps = require("lib-core.maps")
+local maps    = require("lib-core.maps")
+local r_lib   = require("lib-core.render")
 
--- inline stubs (extract in P.0.lib.{render,camera,input,player_control,actor,interaction})
-local render          = { hello = function() return "render stub" end }
+-- inline stubs (extract in P.0.lib.{camera,input,player_control,actor,interaction})
 local camera          = { hello = function() return "camera stub" end }
 local input           = { hello = function() return "input stub" end }
 local player_control  = { hello = function() return "player_control stub" end }
 local actor           = { hello = function() return "actor stub" end }
 local interaction     = { hello = function() return "interaction stub" end }
 
--- Load + activate the demo map (P.0.lib.maps slice)
 local demo_map = maps.load("maps/demo.map.json")
 maps.set_current(demo_map)
 
@@ -18,22 +17,25 @@ local TARGET_FRAMES = 60
 function init(ctx)
     engine.print("spine-prototype init: maps loaded")
     engine.print("inline stubs loaded: "
-        .. render.hello() .. ", "
         .. camera.hello() .. ", "
         .. input.hello() .. ", "
         .. player_control.hello() .. ", "
         .. actor.hello() .. ", "
         .. interaction.hello())
-
     local size = maps.size()
     engine.print(string.format("map size: %dx%d", size.w, size.h))
-
     local corner = maps.tile_at(0, 0)
     local interior = maps.tile_at(5, 5)
     engine.print("tile at (0,0): " .. corner.id)
     engine.print("tile at (5,5): " .. interior.id)
     engine.print("walkable at (0,0): " .. tostring(maps.is_walkable(0, 0)))
     engine.print("walkable at (5,5): " .. tostring(maps.is_walkable(5, 5)))
+    engine.print(string.format("render: %d tiles per frame", size.w * size.h))
+end
+
+function render(ctx)
+    engine.render.clear_color(engine.render.rgb(20, 20, 30))
+    r_lib.draw_map()
 end
 
 function update(ctx, dt)