Change log rotation to be more similar to branches, and also remove log_top (#1496)

Fixes #357 

Stuff left to do

- [x] Make them more like branches
- [x] ~Make them rotate~ Fixed automatically by making them like
branches
- [x] ~Let them be chiseled like stairs?~ This will be a future pr
- [x] Automatic migration between old and new logs

---------

Co-authored-by: Carrie <carriecapp9@gmail.com>

assets/cubyz/blocks/baobab_log.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/baobab"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:baobab_log",
 	.texture_top = "cubyz:baobab_log_top",

assets/cubyz/blocks/baobab_top.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/baobab"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:baobab_log",
 	.texture_top = "cubyz:baobab_log",

assets/cubyz/blocks/birch_log.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/birch"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:birch_log",
 	.texture_top = "cubyz:birch_log_top",

assets/cubyz/blocks/birch_top.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/birch"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:birch_log",
 	.texture_top = "cubyz:birch_log",

assets/cubyz/blocks/bolete_stem.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 4,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/bolete"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:bolete_stem",
 }

assets/cubyz/blocks/cactus.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.leaf},
 	.blockHealth = 5,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/cactus"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:cactus",
 	.texture_top = "cubyz:cactus_top",

assets/cubyz/blocks/cactus_flower.zig.zon

@@ -9,7 +9,7 @@
 	.alwaysViewThrough = true,
 	.absorbedLight = 0x121012,
 	.model = "cubyz:cactus_flower",
-	.rotation = .log,
+	.rotation = .direction,
 	.texture = "cubyz:cactus_flower",
 	.texture_top = "cubyz:cactus_flower_top",
 	.texture_bottom = "cubyz:cactus_flower_top",

assets/cubyz/blocks/glimmergill_stem.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 4,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/glimmergill"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:glimmergill_stem",
 }

assets/cubyz/blocks/log/_defaults.zig.zon

@@ -0,0 +1,9 @@
+.{
+	.tags = .{.wood},
+	.blockHealth = 8,
+	.drops = .{
+		.{.items = .{.auto}},
+	},
+	.rotation = .log,
+	.model = "cubyz:cube",
+}

assets/cubyz/blocks/log/baobab.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/baobab/dot",
+	.texture1 = "cubyz:log/baobab/line",
+	.texture2 = "cubyz:log/baobab/bend",
+	.texture3 = "cubyz:log/baobab/intersection",
+	.texture4 = "cubyz:log/baobab/cross",
+	.texture5 = "cubyz:log/baobab/top",
+}

assets/cubyz/blocks/log/birch.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/birch/dot",
+	.texture1 = "cubyz:log/birch/line",
+	.texture2 = "cubyz:log/birch/bend",
+	.texture3 = "cubyz:log/birch/intersection",
+	.texture4 = "cubyz:log/birch/cross",
+	.texture5 = "cubyz:log/birch/top",
+}

assets/cubyz/blocks/log/bolete.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/bolete/dot",
+	.texture1 = "cubyz:log/bolete/line",
+	.texture2 = "cubyz:log/bolete/bend",
+	.texture3 = "cubyz:log/bolete/intersection",
+	.texture4 = "cubyz:log/bolete/cross",
+	.texture5 = "cubyz:log/bolete/top",
+}

assets/cubyz/blocks/log/cactus.zig.zon

@@ -0,0 +1,9 @@
+.{
+	.tags = .{.leaf},
+	.texture0 = "cubyz:log/cactus/dot",
+	.texture1 = "cubyz:log/cactus/line",
+	.texture2 = "cubyz:log/cactus/bend",
+	.texture3 = "cubyz:log/cactus/intersection",
+	.texture4 = "cubyz:log/cactus/cross",
+	.texture5 = "cubyz:log/cactus/top",
+}

assets/cubyz/blocks/log/glimmergill.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/glimmergill/dot",
+	.texture1 = "cubyz:log/glimmergill/line",
+	.texture2 = "cubyz:log/glimmergill/bend",
+	.texture3 = "cubyz:log/glimmergill/intersection",
+	.texture4 = "cubyz:log/glimmergill/cross",
+	.texture5 = "cubyz:log/glimmergill/top",
+}

assets/cubyz/blocks/log/mahogany.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/mahogany/dot",
+	.texture1 = "cubyz:log/mahogany/line",
+	.texture2 = "cubyz:log/mahogany/bend",
+	.texture3 = "cubyz:log/mahogany/intersection",
+	.texture4 = "cubyz:log/mahogany/cross",
+	.texture5 = "cubyz:log/mahogany/top",
+}

assets/cubyz/blocks/log/oak.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/oak/dot",
+	.texture1 = "cubyz:log/oak/line",
+	.texture2 = "cubyz:log/oak/bend",
+	.texture3 = "cubyz:log/oak/intersection",
+	.texture4 = "cubyz:log/oak/cross",
+	.texture5 = "cubyz:log/oak/top",
+}

assets/cubyz/blocks/log/pine.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/pine/dot",
+	.texture1 = "cubyz:log/pine/line",
+	.texture2 = "cubyz:log/pine/bend",
+	.texture3 = "cubyz:log/pine/intersection",
+	.texture4 = "cubyz:log/pine/cross",
+	.texture5 = "cubyz:log/pine/top",
+}

assets/cubyz/blocks/log/toadstool.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/toadstool/dot",
+	.texture1 = "cubyz:log/toadstool/line",
+	.texture2 = "cubyz:log/toadstool/bend",
+	.texture3 = "cubyz:log/toadstool/intersection",
+	.texture4 = "cubyz:log/toadstool/cross",
+	.texture5 = "cubyz:log/toadstool/top",
+}

assets/cubyz/blocks/log/willow.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.texture0 = "cubyz:log/willow/dot",
+	.texture1 = "cubyz:log/willow/line",
+	.texture2 = "cubyz:log/willow/bend",
+	.texture3 = "cubyz:log/willow/intersection",
+	.texture4 = "cubyz:log/willow/cross",
+	.texture5 = "cubyz:log/willow/top",
+}

assets/cubyz/blocks/mahogany_log.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/mahogany"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:mahogany_log",
 	.texture_top = "cubyz:mahogany_log_top",

assets/cubyz/blocks/mahogany_top.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/mahogany"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:mahogany_log",
 	.texture_top = "cubyz:mahogany_log",

assets/cubyz/blocks/oak_log.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/oak"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:oak_log",
 	.texture_top = "cubyz:oak_log_top",

assets/cubyz/blocks/oak_top.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/oak"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:oak_log",
 	.texture_top = "cubyz:oak_log",

assets/cubyz/blocks/pine_log.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/pine"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:pine_log",
 	.texture_top = "cubyz:pine_log_top",

assets/cubyz/blocks/pine_top.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/pine"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:pine_log",
 	.texture_top = "cubyz:pine_log",

assets/cubyz/blocks/sbb/child/_defaults.zig.zon

@@ -1,5 +1,5 @@
 .{
 	.tags = .{.sbbChild},
 	.model = "cubyz:cube",
-	.rotation = .log,
+	.rotation = .direction,
 }

assets/cubyz/blocks/sbb/origin.zig.zon

@@ -1,7 +1,7 @@
 .{
 	.tags = .{.sbbOrigin},
 	.model = "cubyz:cube",
-	.rotation = .log,
+	.rotation = .direction,
 	.texture = "cubyz:sbb/origin_side",
 	.texture_top = "cubyz:sbb/origin_top",
 	.texture_bottom = "cubyz:sbb/origin_bottom",

assets/cubyz/blocks/toadstool_stem.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 4,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/toadstool"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:toadstool_stem",
 }

assets/cubyz/blocks/willow_log.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/willow"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:willow_log",
 	.texture_top = "cubyz:willow_log_top",

assets/cubyz/blocks/willow_top.zig.zon

@@ -1,10 +1,11 @@
 .{
 	.tags = .{.wood},
 	.blockHealth = 8,
+	.hasItem = false,
 	.drops = .{
-		.{.items = .{.auto}},
+		.{.items = .{"cubyz:log/willow"}},
 	},
-	.rotation = .log,
+	.rotation = .direction,
 	.model = "cubyz:cube",
 	.texture = "cubyz:willow_log",
 	.texture_top = "cubyz:willow_log",

assets/cubyz/recipes/wood_recipes.zig.zon

@@ -24,15 +24,11 @@
 		.output = "cubyz:workbench",
 	},
 	.{
-		.inputs = .{"cubyz:birch_log"},
+		.inputs = .{"cubyz:log/birch"},
 		.output = "4 cubyz:birch_planks",
 	},
 	.{
-		.inputs = .{"cubyz:birch_top"},
-		.output = "3 cubyz:birch_planks",
-	},
-	.{
-		.inputs = .{"cubyz:birch_log"},
+		.inputs = .{"cubyz:log/birch"},
 		.output = "2 cubyz:birch_branch",
 	},
 	.{
@@ -40,15 +36,11 @@
 		.output = "2 cubyz:birch_planks",
 	},
 	.{
-		.inputs = .{"cubyz:baobab_log"},
+		.inputs = .{"cubyz:log/baobab"},
 		.output = "4 cubyz:baobab_planks",
 	},
 	.{
-		.inputs = .{"cubyz:baobab_top"},
-		.output = "3 cubyz:baobab_planks",
-	},
-	.{
-		.inputs = .{"cubyz:baobab_log"},
+		.inputs = .{"cubyz:log/baobab"},
 		.output = "2 cubyz:baobab_branch",
 	},
 	.{
@@ -56,15 +48,11 @@
 		.output = "2 cubyz:baobab_planks",
 	},
 	.{
-		.inputs = .{"cubyz:oak_log"},
+		.inputs = .{"cubyz:log/oak"},
 		.output = "4 cubyz:oak_planks",
 	},
 	.{
-		.inputs = .{"cubyz:oak_top"},
-		.output = "3 cubyz:oak_planks",
-	},
-	.{
-		.inputs = .{"cubyz:oak_log"},
+		.inputs = .{"cubyz:log/oak"},
 		.output = "2 cubyz:oak_branch",
 	},
 	.{
@@ -72,15 +60,11 @@
 		.output = "2 cubyz:oak_planks",
 	},
 	.{
-		.inputs = .{"cubyz:mahogany_log"},
+		.inputs = .{"cubyz:log/mahogany"},
 		.output = "4 cubyz:mahogany_planks",
 	},
 	.{
-		.inputs = .{"cubyz:mahogany_top"},
-		.output = "3 cubyz:mahogany_planks",
-	},
-	.{
-		.inputs = .{"cubyz:mahogany_log"},
+		.inputs = .{"cubyz:log/mahogany"},
 		.output = "2 cubyz:mahogany_branch",
 	},
 	.{
@@ -88,15 +72,11 @@
 		.output = "2 cubyz:mahogany_planks",
 	},
 	.{
-		.inputs = .{"cubyz:pine_log"},
+		.inputs = .{"cubyz:log/pine"},
 		.output = "4 cubyz:pine_planks",
 	},
 	.{
-		.inputs = .{"cubyz:pine_top"},
-		.output = "3 cubyz:pine_planks",
-	},
-	.{
-		.inputs = .{"cubyz:pine_log"},
+		.inputs = .{"cubyz:log/pine"},
 		.output = "2 cubyz:pine_branch",
 	},
 	.{
@@ -104,15 +84,11 @@
 		.output = "2 cubyz:pine_planks",
 	},
 	.{
-		.inputs = .{"cubyz:willow_log"},
+		.inputs = .{"cubyz:log/willow"},
 		.output = "4 cubyz:willow_planks",
 	},
 	.{
-		.inputs = .{"cubyz:willow_top"},
-		.output = "3 cubyz:willow_planks",
-	},
-	.{
-		.inputs = .{"cubyz:willow_log"},
+		.inputs = .{"cubyz:log/willow"},
 		.output = "2 cubyz:willow_branch",
 	},
 	.{
@@ -172,15 +148,15 @@
 		.output = "2 cubyz:cactus_arm",
 	},
 	.{
-		.inputs = .{"cubyz:bolete_stem"},
+		.inputs = .{"cubyz:log/bolete"},
 		.output = "2 cubyz:bolete_branch",
 	},
 	.{
-		.inputs = .{"cubyz:toadstool_stem"},
+		.inputs = .{"cubyz:log/toadstool"},
 		.output = "2 cubyz:toadstool_branch",
 	},
 	.{
-		.inputs = .{"cubyz:glimmergill_stem"},
+		.inputs = .{"cubyz:log/glimmergill"},
 		.output = "2 cubyz:glimmergill_branch",
 	},
 

src/rotation/_list.zig

@@ -1,5 +1,6 @@
 pub const branch = @import("branch.zig");
 pub const carpet = @import("carpet.zig");
+pub const direction = @import("direction.zig");
 pub const fence = @import("fence.zig");
 pub const log = @import("log.zig");
 pub const no_rotation = @import("no_rotation.zig");

src/rotation/branch.zig

@@ -33,7 +33,7 @@ const HashMapKey = struct {
 		return std.mem.eql(u8, val1.shellModelId, val2.shellModelId);
 	}
 };
-const BranchData = packed struct(u6) {
+pub const BranchData = packed struct(u6) {
 	enabledConnections: u6,
 
 	pub inline fn init(blockData: u16) BranchData {
@@ -65,7 +65,7 @@ pub fn reset() void {
 	branchModels.clearRetainingCapacity();
 }
 
-const Direction = enum(u2) {
+pub const Direction = enum(u2) {
 	negYDir = 0,
 	posXDir = 1,
 	posYDir = 2,
@@ -74,18 +74,10 @@ const Direction = enum(u2) {
 
 const Pattern = union(enum) {
 	dot: void,
-	halfLine: struct {
-		dir: Direction,
-	},
-	line: struct {
-		dir: Direction,
-	},
-	bend: struct {
-		dir: Direction,
-	},
-	intersection: struct {
-		dir: Direction,
-	},
+	halfLine: Direction,
+	line: Direction,
+	bend: Direction,
+	intersection: Direction,
 	cross: void,
 };
 
@@ -95,7 +87,7 @@ fn rotateQuad(originalCorners: [4]Vec2f, pattern: Pattern, min: f32, max: f32, s
 	switch(pattern) {
 		.dot, .cross => {},
 		inline else => |typ| {
-			const angle: f32 = @as(f32, @floatFromInt(@intFromEnum(typ.dir)))*std.math.pi/2.0;
+			const angle: f32 = @as(f32, @floatFromInt(@intFromEnum(typ)))*std.math.pi/2.0;
 			corners = .{
 				vec.rotate2d(originalCorners[0], angle, @splat(0.5)),
 				vec.rotate2d(originalCorners[1], angle, @splat(0.5)),
@@ -188,7 +180,7 @@ fn addQuads(pattern: Pattern, side: Neighbor, radius: f32, out: *main.List(main.
 	}
 }
 
-fn getPattern(data: BranchData, side: Neighbor) ?Pattern {
+pub fn getPattern(data: BranchData, side: Neighbor) ?Pattern {
 	const posX = Neighbor.fromRelPos(side.textureX()).?;
 	const negX = Neighbor.fromRelPos(side.textureX()).?.reverse();
 	const posY = Neighbor.fromRelPos(side.textureY()).?;
@@ -218,7 +210,7 @@ fn getPattern(data: BranchData, side: Neighbor) ?Pattern {
 			} else if(connectedPosY) {
 				dir = .posYDir;
 			}
-			return .{.halfLine = .{.dir = dir}};
+			return .{.halfLine = dir};
 		},
 		2 => {
 			if((connectedPosX and connectedNegX) or (connectedPosY and connectedNegY)) {
@@ -227,7 +219,7 @@ fn getPattern(data: BranchData, side: Neighbor) ?Pattern {
 					dir = .posXDir;
 				}
 
-				return .{.line = .{.dir = dir}};
+				return .{.line = dir};
 			}
 
 			var dir: Direction = .negXDir;
@@ -249,7 +241,7 @@ fn getPattern(data: BranchData, side: Neighbor) ?Pattern {
 				}
 			}
 
-			return .{.bend = .{.dir = dir}};
+			return .{.bend = dir};
 		},
 		3 => {
 			var dir: Direction = undefined;
@@ -258,7 +250,7 @@ fn getPattern(data: BranchData, side: Neighbor) ?Pattern {
 			if(!connectedNegY) dir = .posYDir;
 			if(!connectedPosX) dir = .negXDir;
 
-			return .{.intersection = .{.dir = dir}};
+			return .{.intersection = dir};
 		},
 		4 => {
 			return .cross;

src/rotation/direction.zig

@@ -0,0 +1,71 @@
+const std = @import("std");
+
+const main = @import("main");
+const blocks = main.blocks;
+const Block = blocks.Block;
+const Neighbor = main.chunk.Neighbor;
+const ModelIndex = main.models.ModelIndex;
+const rotation = main.rotation;
+const Degrees = rotation.Degrees;
+const vec = main.vec;
+const Mat4f = vec.Mat4f;
+const Vec3f = vec.Vec3f;
+const Vec3i = vec.Vec3i;
+const ZonElement = main.ZonElement;
+
+var rotatedModels: std.StringHashMap(ModelIndex) = undefined;
+
+pub fn init() void {
+	rotatedModels = .init(main.globalAllocator.allocator);
+}
+
+pub fn deinit() void {
+	rotatedModels.deinit();
+}
+
+pub fn reset() void {
+	rotatedModels.clearRetainingCapacity();
+}
+
+pub fn createBlockModel(_: Block, _: *u16, zon: ZonElement) ModelIndex {
+	const modelId = zon.as([]const u8, "cubyz:cube");
+	if(rotatedModels.get(modelId)) |modelIndex| return modelIndex;
+
+	const baseModel = main.models.getModelIndex(modelId).model();
+	// Rotate the model:
+	const modelIndex = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.identity()});
+	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationY(std.math.pi)});
+	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationZ(-std.math.pi/2.0).mul(Mat4f.rotationX(-std.math.pi/2.0))});
+	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationZ(std.math.pi/2.0).mul(Mat4f.rotationX(-std.math.pi/2.0))});
+	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationX(-std.math.pi/2.0)});
+	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationZ(std.math.pi).mul(Mat4f.rotationX(-std.math.pi/2.0))});
+	rotatedModels.put(modelId, modelIndex) catch unreachable;
+	return modelIndex;
+}
+
+pub fn model(block: Block) ModelIndex {
+	return .{.index = blocks.meshes.modelIndexStart(block).index + @min(block.data, 5)};
+}
+
+pub fn rotateZ(data: u16, angle: Degrees) u16 {
+	comptime var rotationTable: [4][6]u8 = undefined;
+	comptime for(0..6) |i| {
+		rotationTable[0][i] = i;
+	};
+	comptime for(1..4) |a| {
+		for(0..6) |i| {
+			const neighbor: Neighbor = @enumFromInt(rotationTable[a - 1][i]);
+			rotationTable[a][i] = neighbor.rotateZ().toInt();
+		}
+	};
+	if(data >= 6) return 0;
+	return rotationTable[@intFromEnum(angle)][data];
+}
+
+pub fn generateData(_: *main.game.World, _: Vec3i, _: Vec3f, _: Vec3f, _: Vec3i, neighbor: ?Neighbor, currentData: *Block, _: Block, blockPlacing: bool) bool {
+	if(blockPlacing) {
+		currentData.data = neighbor.?.reverse().toInt();
+		return true;
+	}
+	return false;
+}

src/rotation/log.zig

@@ -7,65 +7,244 @@ const Neighbor = main.chunk.Neighbor;
 const ModelIndex = main.models.ModelIndex;
 const rotation = main.rotation;
 const Degrees = rotation.Degrees;
+const RotationMode = rotation.RotationMode;
 const vec = main.vec;
 const Mat4f = vec.Mat4f;
+const Vec2f = vec.Vec2f;
 const Vec3f = vec.Vec3f;
 const Vec3i = vec.Vec3i;
 const ZonElement = main.ZonElement;
+const branch = @import("branch.zig");
 
-var rotatedModels: std.StringHashMap(ModelIndex) = undefined;
+pub const dependsOnNeighbors = true;
 
-pub fn init() void {
-	rotatedModels = .init(main.globalAllocator.allocator);
-}
+var modelIndex: ?ModelIndex = null;
 
-pub fn deinit() void {
-	rotatedModels.deinit();
-}
+const LogData = branch.BranchData;
+
+pub fn init() void {}
+
+pub fn deinit() void {}
 
 pub fn reset() void {
-	rotatedModels.clearRetainingCapacity();
+	modelIndex = null;
 }
 
-pub fn createBlockModel(_: Block, _: *u16, zon: ZonElement) ModelIndex {
-	const modelId = zon.as([]const u8, "cubyz:cube");
-	if(rotatedModels.get(modelId)) |modelIndex| return modelIndex;
+const DirectionWithSign = branch.Direction;
 
-	const baseModel = main.models.getModelIndex(modelId).model();
-	// Rotate the model:
-	const modelIndex = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.identity()});
-	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationY(std.math.pi)});
-	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationZ(-std.math.pi/2.0).mul(Mat4f.rotationX(-std.math.pi/2.0))});
-	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationZ(std.math.pi/2.0).mul(Mat4f.rotationX(-std.math.pi/2.0))});
-	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationX(-std.math.pi/2.0)});
-	_ = baseModel.transformModel(rotation.rotationMatrixTransform, .{Mat4f.rotationZ(std.math.pi).mul(Mat4f.rotationX(-std.math.pi/2.0))});
-	rotatedModels.put(modelId, modelIndex) catch unreachable;
-	return modelIndex;
+const DirectionWithoutSign = enum(u1) {
+	y = 0,
+	x = 1,
+
+	fn fromBranchDirection(dir: DirectionWithSign) DirectionWithoutSign {
+		return switch(dir) {
+			.negYDir => .y,
+			.posXDir => .x,
+			.posYDir => .y,
+			.negXDir => .x,
+		};
+	}
+};
+
+const Pattern = union(enum) {
+	dot: void,
+	line: DirectionWithoutSign,
+	bend: DirectionWithSign,
+	intersection: DirectionWithSign,
+	cross: void,
+	cut: void,
+};
+
+fn rotateQuad(pattern: Pattern, side: Neighbor) main.models.QuadInfo {
+	const originalCorners: [4]Vec2f = .{
+		.{0, 0},
+		.{0, 1},
+		.{1, 0},
+		.{1, 1},
+	};
+	var corners: [4]Vec2f = originalCorners;
+
+	switch(pattern) {
+		.dot, .cross, .cut => {},
+		.line => |dir| {
+			var angle: f32 = @as(f32, @floatFromInt(@intFromEnum(dir)))*std.math.pi/2.0;
+			if(side.relZ() != 0) {
+				angle *= -1;
+			}
+			if(side.isPositive()) {
+				angle *= -1;
+			}
+			if(side.relY() != 0) {
+				angle *= -1;
+			}
+			corners = .{
+				vec.rotate2d(originalCorners[0], angle, @splat(0.5)),
+				vec.rotate2d(originalCorners[1], angle, @splat(0.5)),
+				vec.rotate2d(originalCorners[2], angle, @splat(0.5)),
+				vec.rotate2d(originalCorners[3], angle, @splat(0.5)),
+			};
+		},
+		.bend, .intersection => |dir| {
+			corners = originalCorners;
+
+			const angle: f32 = -@as(f32, @floatFromInt(@intFromEnum(dir)))*std.math.pi/2.0;
+			corners = .{
+				vec.rotate2d(originalCorners[0], angle, @splat(0.5)),
+				vec.rotate2d(originalCorners[1], angle, @splat(0.5)),
+				vec.rotate2d(originalCorners[2], angle, @splat(0.5)),
+				vec.rotate2d(originalCorners[3], angle, @splat(0.5)),
+			};
+		},
+	}
+
+	const offX: f32 = @floatFromInt(@intFromBool(@reduce(.Add, side.textureX()) < 0));
+	const offY: f32 = @floatFromInt(@intFromBool(@reduce(.Add, side.textureY()) < 0));
+
+	const corners3d = .{
+		@as(Vec3f, @floatFromInt(side.textureX()))*@as(Vec3f, @splat(originalCorners[0][0] - offX)) + @as(Vec3f, @floatFromInt(side.textureY()))*@as(Vec3f, @splat(originalCorners[0][1] - offY)),
+		@as(Vec3f, @floatFromInt(side.textureX()))*@as(Vec3f, @splat(originalCorners[1][0] - offX)) + @as(Vec3f, @floatFromInt(side.textureY()))*@as(Vec3f, @splat(originalCorners[1][1] - offY)),
+		@as(Vec3f, @floatFromInt(side.textureX()))*@as(Vec3f, @splat(originalCorners[2][0] - offX)) + @as(Vec3f, @floatFromInt(side.textureY()))*@as(Vec3f, @splat(originalCorners[2][1] - offY)),
+		@as(Vec3f, @floatFromInt(side.textureX()))*@as(Vec3f, @splat(originalCorners[3][0] - offX)) + @as(Vec3f, @floatFromInt(side.textureY()))*@as(Vec3f, @splat(originalCorners[3][1] - offY)),
+	};
+
+	var offset: Vec3f = .{0.0, 0.0, 0.0};
+	offset[@intFromEnum(side.vectorComponent())] = @floatFromInt(@intFromBool(side.isPositive()));
+
+	const res: main.models.QuadInfo = .{
+		.corners = .{
+			corners3d[0] + offset,
+			corners3d[1] + offset,
+			corners3d[2] + offset,
+			corners3d[3] + offset,
+		},
+		.cornerUV = corners,
+		.normal = @floatFromInt(side.relPos()),
+		.textureSlot = @intFromEnum(pattern),
+	};
+
+	return res;
+}
+
+fn getPattern(data: LogData, side: Neighbor) Pattern {
+	if(data.isConnected(side)) {
+		return .cut;
+	}
+
+	const pattern = branch.getPattern(data, side).?;
+
+	switch(pattern) {
+		.dot => {
+			return .dot;
+		},
+		.halfLine => |dir| {
+			return .{.line = .fromBranchDirection(dir)};
+		},
+		.line => |dir| {
+			return .{.line = .fromBranchDirection(dir)};
+		},
+		.bend => |dir| {
+			return .{.bend = dir};
+		},
+		.intersection => |dir| {
+			return .{.intersection = dir};
+		},
+		.cross => {
+			return .cross;
+		},
+	}
+}
+
+pub fn createBlockModel(_: Block, _: *u16, _: ZonElement) ModelIndex {
+	if(modelIndex) |idx| return idx;
+
+	for(0..64) |i| {
+		var quads = main.List(main.models.QuadInfo).init(main.stackAllocator);
+		defer quads.deinit();
+
+		const data = LogData.init(@intCast(i));
+
+		for(Neighbor.iterable) |neighbor| {
+			const pattern = getPattern(data, neighbor);
+
+			quads.append(rotateQuad(pattern, neighbor));
+		}
+
+		const index = main.models.Model.init(quads.items);
+		if(i == 0) {
+			modelIndex = index;
+		}
+	}
+
+	return modelIndex.?;
 }
 
 pub fn model(block: Block) ModelIndex {
-	return .{.index = blocks.meshes.modelIndexStart(block).index + @min(block.data, 5)};
+	return .{.index = blocks.meshes.modelIndexStart(block).index + (block.data & 63)};
 }
 
-pub fn rotateZ(data: u16, angle: Degrees) u16 {
-	comptime var rotationTable: [4][6]u8 = undefined;
-	comptime for(0..6) |i| {
-		rotationTable[0][i] = i;
-	};
-	comptime for(1..4) |a| {
-		for(0..6) |i| {
-			const neighbor: Neighbor = @enumFromInt(rotationTable[a - 1][i]);
-			rotationTable[a][i] = neighbor.rotateZ().toInt();
+pub const rotateZ = branch.rotateZ;
+
+pub fn generateData(
+	_: *main.game.World,
+	pos: Vec3i,
+	_: Vec3f,
+	_: Vec3f,
+	_: Vec3i,
+	neighbor: ?Neighbor,
+	currentBlock: *Block,
+	neighborBlock: Block,
+	blockPlacing: bool,
+) bool {
+	const canConnectToNeighbor = currentBlock.mode() == neighborBlock.mode();
+
+	if(blockPlacing or canConnectToNeighbor or !neighborBlock.replacable()) {
+		const neighborModel = blocks.meshes.model(neighborBlock).model();
+
+		var currentData = LogData.init(currentBlock.data);
+		// Log block upon placement should extend towards a block it was placed
+		// on if the block is solid or also uses log model.
+		const targetVal = ((!neighborBlock.replacable() and (!neighborBlock.viewThrough() or canConnectToNeighbor)) and (canConnectToNeighbor or neighborModel.isNeighborOccluded[neighbor.?.reverse().toInt()]));
+		currentData.setConnection(neighbor.?, targetVal);
+
+		for(Neighbor.iterable) |side| {
+			if(side == neighbor.?) {
+				continue;
+			}
+
+			const sidePos = pos + side.relPos();
+			const sideBlock = main.renderer.mesh_storage.getBlock(sidePos[0], sidePos[1], sidePos[2]) orelse continue;
+			const canConnectToSide = currentBlock.mode() == sideBlock.mode() and currentBlock.modeData() == sideBlock.modeData();
+
+			if(canConnectToSide) {
+				const sideData = LogData.init(sideBlock.data);
+				currentData.setConnection(side, sideData.isConnected(side.reverse()));
+			}
 		}
-	};
-	if(data >= 6) return 0;
-	return rotationTable[@intFromEnum(angle)][data];
-}
 
-pub fn generateData(_: *main.game.World, _: Vec3i, _: Vec3f, _: Vec3f, _: Vec3i, neighbor: ?Neighbor, currentData: *Block, _: Block, blockPlacing: bool) bool {
-	if(blockPlacing) {
-		currentData.data = neighbor.?.reverse().toInt();
+		const result: u16 = currentData.enabledConnections;
+		if(result == currentBlock.data) return false;
+
+		currentBlock.data = result;
 		return true;
 	}
 	return false;
 }
+
+pub fn updateData(block: *Block, neighbor: Neighbor, neighborBlock: Block) bool {
+	const canConnectToNeighbor = block.mode() == neighborBlock.mode();
+	var currentData = LogData.init(block.data);
+
+	// Handle joining with other logs. While placed, logs extend in a
+	// opposite direction than they were placed from, effectively connecting
+	// to the block they were placed at.
+	if(canConnectToNeighbor) {
+		const neighborData = LogData.init(neighborBlock.data);
+		currentData.setConnection(neighbor, neighborData.isConnected(neighbor.reverse()));
+	}
+
+	const result: u16 = currentData.enabledConnections;
+	if(result == block.data) return false;
+
+	block.data = result;
+	return true;
+}