add ship actor

asteroids/actors.lua

@@ -71,9 +71,54 @@ function actors.buildActors(game)
         love.graphics.pop()
     end
 
+    local ships = {}
+    local ships_mt = { __index = ships }
+
+    function ships.new(ship)
+        local instance = {
+            x = game.width / 2,
+            y = game.height / 2,
+            angle = 0,
+            speed = 0,
+            spin = 0,
+            facing = phys.tau * 3 / 4,
+            radius = game.ship.radius,
+        }
+        for k, v in pairs(game.ship) do
+            instance[k] = v
+        end
+        for k, v in pairs(ship) do
+            instance[k] = v
+        end
+        setmetatable(instance, ships_mt)
+        return instance
+    end
+
+    function ships:draw()
+        love.graphics.push()
+        love.graphics.translate(self.x, self.y)
+        love.graphics.setColor(1, 1, 1)
+        local width = self.sprite:getWidth()
+        local height = self.sprite:getHeight()
+
+        local scale = 2 * game.ship.radius / math.max(width, height)
+        love.graphics.draw(game.ship.sprite,
+            0,
+            0,
+            (self.facing + phys.tau / 4) % phys.tau,
+            scale,
+            scale,
+            width / 2,
+            height / 2
+        )
+        -- TODO rocket exhaust
+        love.graphics.pop()
+    end
+
     return {
         asteroids = asteroids,
         bullets = bullets,
+        ships = ships,
     }
 end
 

asteroids/main.lua

@@ -65,15 +65,7 @@ local function initState()
     return {
         debug = true,
         actors = actors,
-        ship = {
+        ship = actors.ships.new({}),
-            x = game.width / 2,
-            y = game.height / 2,
-            angle = 0,
-            speed = 0,
-            spin = 0,
-            facing = phys.tau * 3 / 4,
-            radius = game.ship.radius,
-        },
         bullets = {},
         asteroids = asteroids,
         controls = {
@@ -193,22 +185,7 @@ function love.draw()
         for x = -1, 1 do
             love.graphics.origin()
             love.graphics.translate(x * game.width, y * game.height)
-
+            state.ship:draw()
-            love.graphics.push()
-            love.graphics.translate(state.ship.x, state.ship.y)
-            love.graphics.setColor(1, 1, 1)
-            local scale = 2 * game.ship.radius / math.max(game.ship.sprite:getWidth(), game.ship.sprite:getHeight())
-            love.graphics.draw(game.ship.sprite,
-                0,
-                0,
-                (state.ship.facing + phys.tau / 4) % phys.tau,
-                scale,
-                scale,
-                game.ship.sprite:getWidth() / 2,
-                game.ship.sprite:getHeight() / 2
-            )
-            -- TODO rocket exhaust
-            love.graphics.pop()
 
             for _, bullet in ipairs(state.bullets) do
                 bullet:draw()