Glimmergill mushroom caves (#1716)

<img width="1366" height="768" alt="image"
src="https://github.com/user-attachments/assets/025ef427-dd37-4ca6-8ca8-aa511a433c67"
/>

assets/cubyz/biomes/cave/glimmergill_big.zig.zon

@@ -0,0 +1,46 @@
+.{
+	.isCave = true,
+	.maxHeight = -512,
+	.minHeight = -48250,
+
+	.chance = 0.02,
+
+	.caves = -0.02,
+
+	.music = "cubyz:la_kubisa_caverna",
+	.ground_structure = .{
+		"2 to 3 cubyz:soil",
+	},
+	.structures = .{
+		.{
+			.id = "cubyz:ground_patch",
+			.block = "cubyz:clay",
+			.chance = 0.3,
+			.width = 5,
+			.variation = 5,
+			.depth = 1,
+			.smoothness = 0.5,
+		},
+		.{
+			.id = "cubyz:sbb",
+			.structure = "cubyz:mushroom/big/glimmergill/base",
+			.placeMode = .degradable,
+			.chance = 0.15,
+		},
+		.{
+			.id = "cubyz:sbb",
+			.structure = "cubyz:mushroom/small/glimmergill/base",
+			.placeMode = .degradable,
+			.chance = 0.2,
+		},
+		.{
+			.id = "cubyz:flower_patch",
+			.block = "cubyz:glimmergill",
+			.chance = 0.15,
+			.width = 8,
+			.variation = 4,
+			.density = 0.06,
+			.priority = 0.1,
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/base.zig.zon

@@ -0,0 +1,11 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/empty",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/big/glimmergill/base/0"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/base/1"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/base/2"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/base/3"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/base/0.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/base/0",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/base/1.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/base/1",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/base/2.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/base/2",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/base/3.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/base/3",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/cap.zig.zon

@@ -0,0 +1,14 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/empty",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/0"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/1"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/2"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/3"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/4"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/5"},
+			.{.structure = "cubyz:mushroom/big/glimmergill/cap/6"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/big/glimmergill/empty.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.blueprint = "cubyz:mushroom/big/glimmergill/empty",
+	.children = .{
+		.white = .{
+			.{.structure = null},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/small/glimmergill/base.zig.zon

@@ -0,0 +1,15 @@
+.{
+	.blueprint = "cubyz:mushroom/small/glimmergill/empty",
+	.children = .{
+		.white = .{
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/0"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/1"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/2"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/3"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/4"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/5"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/6"},
+			.{.structure = "cubyz:mushroom/small/glimmergill/variant/7"},
+		},
+	},
+}

assets/cubyz/sbb/mushroom/small/glimmergill/empty.zig.zon

@@ -0,0 +1,8 @@
+.{
+	.blueprint = "cubyz:mushroom/small/glimmergill/empty",
+	.children = .{
+		.white = .{
+			.{.structure = null},
+		},
+	},
+}