display atlas

justfile

@@ -2,7 +2,7 @@ bin := "Rush.pdx"
 
 alias b := build
 build:
-    pdc src {{ bin }}
+    pdc --quiet --skip-unknown src {{ bin }}
 
 alias s := simu
 simu: build

src/main.lua

@@ -6,48 +6,24 @@ import "CoreLibs/timer"
 local gfx <const> = playdate.graphics
 
 local playerSprite = nil
+local atlas = nil
 
-function myGameSetUp()
-  local playerImage = gfx.image.new("img/player.png")
+function gameInit()
+  local playerImage = gfx.image.new("img/player")
   assert(playerImage)
 
   playerSprite = gfx.sprite.new(playerImage)
   playerSprite:moveTo(200, 120) -- (200,120) is the center of the Playdate screen
   playerSprite:add()
 
-  -- We want an environment displayed behind our sprite.
-  -- There are generally two ways to do this:
-  -- 1) Use setBackgroundDrawingCallback() to draw a background image. (This is what we're doing below.)
-  -- 2) Use a tilemap, assign it to a sprite with sprite:setTilemap(tilemap),
-  --       and call :setZIndex() with some low number so the background stays behind
-  --       your other sprites.
-
-  -- local backgroundImage = gfx.image.new("Images/background")
-  -- assert(backgroundImage)
-
-  -- gfx.sprite.setBackgroundDrawingCallback(
-  --   function(x, y, width, height)
-  --     -- x,y,width,height is the updated area in sprite-local coordinates
-  --     -- The clip rect is already set to this area, so we don't need to set it ourselves
-  --     backgroundImage:draw(0, 0)
-  --   end
-  -- )
-
-  local table = gfx.imagetable.new("img/tilemap-table-16-16.png")
-  local map = gfx.tilemap.new()
-  map:setImageTable(table)
-  map:draw(0, 0)
+  atlas = gfx.imagetable.new("img/bg_atlas")
 end
 
 -- Now we'll call the function above to configure our game.
 -- After this runs (it just runs once), nearly everything will be
 -- controlled by the OS calling `playdate.update()` 30 times a second.
 
-myGameSetUp()
-
--- `playdate.update()` is the heart of every Playdate game.
--- This function is called right before every frame is drawn onscreen.
--- Use this function to poll input, run game logic, and move sprites.
+gameInit()
 
 function playdate.update()
   -- Poll the d-pad and move our player accordingly.
@@ -74,4 +50,5 @@ function playdate.update()
 
   gfx.sprite.update()
   playdate.timer.updateTimers()
+  atlas:drawImage(1, 32, 32)
 end