Replace graphics file with canvas API

source/ona/canvas.zig

@@ -0,0 +1,23 @@
+const coral = @import("coral");
+
+pub const Item = struct {
+	transform: Transform,
+
+	options: union (enum) {
+		sprite: struct {
+
+		},
+	},
+};
+
+pub const Transform = extern struct {
+	x: coral.math.Vector2,
+	y: coral.math.Vector2,
+	origin: coral.math.Vector2,
+
+	pub const identity = Transform{
+		.x = .{1, 0},
+		.y = .{0, 1},
+		.origin = .{0, 0},
+	};
+};

source/ona/gfx.zig

@@ -1,68 +0,0 @@
-const coral = @import("coral");
-
-const ext = @import("./ext.zig");
-
-pub const Canvas = struct {
-	allocator: coral.io.Allocator,
-	items: coral.slots.Dense(coral.slots.addressable_key, Item),
-
-	const Item = union (enum) {
-		sprite: struct {
-			transform: Transform2D,
-		},
-	};
-
-	pub fn create_sprite(self: *Canvas, transform: Transform2D) coral.io.AllocationError!Sprite {
-		const slot = try self.items.insert(self.allocator, .{.sprite = .{
-			.transform = transform,
-		}});
-
-		errdefer coral.debug.assert(self.items.remove(slot));
-
-		return Sprite{
-			.slot = slot,
-		};
-	}
-
-	pub fn deinit(self: *Canvas) void {
-		self.items.free(self.allocator);
-	}
-
-	pub fn destroy_sprite(self: *Canvas, sprite: Sprite) void {
-		self.items.remove(sprite) catch unreachable;
-	}
-
-	pub fn init(allocator: coral.io.Allocator) Canvas {
-		return .{
-			.allocator = allocator,
-			.items = .{},
-		};
-	}
-};
-
-pub const Label = struct {
-	index: u32,
-	version: u32,
-};
-
-pub const Sprite = struct {
-	slot: coral.slots.Slot(coral.slots.addressable_key),
-};
-
-pub const Transform2D = extern struct {
-	x: coral.math.Vector2,
-	y: coral.math.Vector2,
-	origin: coral.math.Vector2,
-
-	pub fn from_trs(translation_x: f32, translation_y: f32, rotation: f32, scale_x: f32, scale_y: f32) Transform2D {
-		return identity.scaled(scale_x, scale_y).multiply(
-			identity.rotated(rotation).multiply(
-				identity.translated(translation_x, translation_y)));
-	}
-
-	pub const identity = Transform2D{
-		.x = coral.math.Vector2{1, 0},
-		.y = coral.math.Vector2{0, 1},
-		.origin = coral.math.Vector2{0, 0},
-	};
-};