generalize floor meshing; fixes #278

1 files changed, 42 insertions, 0 deletions

diff --git a/client/map/tiles/grass_mesher.gd b/client/map/tiles/grass_mesher.gd
new file mode 100644
index 00000000..8535bfe7
--- /dev/null
+++ b/client/map/tiles/grass_mesher.gd
@@ -0,0 +1,42 @@
+# Hurry Curry! - a game about cooking
+# Copyright 2025 nokoe
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, version 3 of the License only.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+class_name GrassMesher
+extends FloorMesher
+
+const GRASS_MESH: Mesh = preload("res://map/tiles/grass_side.tres")
+var multimesh_instance := MultiMeshInstance3D.new()
+
+func _init(mesh: MeshInstance3D) -> void:
+	super(mesh)
+	mesh_instance.add_child(multimesh_instance)
+
+func flush() -> void:
+	super()
+	var random = RandomNumberGenerator.new()
+	random.seed = "gr4ss".hash()
+
+	var multimesh := MultiMesh.new()
+	multimesh.mesh = GRASS_MESH
+	multimesh.transform_format = MultiMesh.TRANSFORM_3D
+	multimesh.instance_count = tiles.size() * Global.get_setting("graphics.grass_amount")
+	var t := tiles.values()
+	for i in multimesh.instance_count:
+		var p = t[i / Global.get_setting("graphics.grass_amount")]
+		var origin := Vector3(random.randf_range(-.5, .5), 0.25, random.randf_range(-.5, .5)) + Vector3(p.x + 0.5, 0.0, p.y + 0.5)
+		var basis_ := (Basis(Vector3(0, 1, 0), random.randf_range(0, PI)) * Basis(Vector3(1, 0, 0), PI/2)).scaled(Vector3(0.75, 0.5, 0.75))
+		multimesh.set_instance_transform(i, Transform3D(basis_, origin))
+
+	multimesh_instance.multimesh = multimesh