Detect tile under foot

scripts/OverworldEntity.gd

@@ -7,12 +7,14 @@ enum Direction {
 	EAST
 }
 
-var speed:float = 3200;
-var friction:float = 7;
-var gravity:float = 150;
+var speed:float = 150;
+var friction:float = 8.5;
+var gravity:float = 30;
 
 var direction = Direction.SOUTH;
 var meshInstance:MeshInstance3D;
+var underFootTile:int = -1;
+var underFootPosition:Vector3;
 
 func getDirectionVector() -> Vector3:
 	match direction:
@@ -33,9 +35,58 @@ func updateMovement(delta) -> void:
 func updateOverworldLogic(delta) -> void:
 	pass
 
+# Private methods
+func _updateTileData() -> void:
+	# ray cast down
+	var offset = Vector3(0, 0, 0.426);
+	var query = PhysicsRayQueryParameters3D.create(
+		position + offset,
+		position + Vector3(0, -1, 0) + offset
+	)
+	query.collide_with_areas = true
+	query.exclude = [self]
+
+	var result = get_world_3d().direct_space_state.intersect_ray(query)
+	if !result or !result.collider:
+		return;
+
+	var collider = result.collider;
+	var colliderMesh = collider.get_node("../");
+	if !colliderMesh or !colliderMesh.mesh or colliderMesh.mesh.get_surface_count() == 0:
+		return;
+
+	# Get the face index (triangle)
+	var arrays = colliderMesh.mesh.surface_get_arrays(0);
+	var indiceIdx = result.face_index * 3;
+	
+	# Get each indice of the triangle
+	var index0 = arrays[Mesh.ARRAY_INDEX][indiceIdx+0];
+	var index1 = arrays[Mesh.ARRAY_INDEX][indiceIdx+1];
+	var index2 = arrays[Mesh.ARRAY_INDEX][indiceIdx+2];
+	
+	# Get each uv of each indice
+	var uv0:Vector2 = arrays[Mesh.ARRAY_TEX_UV][index0];
+	var uv1:Vector2 = arrays[Mesh.ARRAY_TEX_UV][index1];
+	var uv2:Vector2 = arrays[Mesh.ARRAY_TEX_UV][index2];
+	
+	# Determine the lowest texture coordinate
+	var min = Vector2(min(uv0.x, uv1.x, uv2.x), min(uv0.y, uv1.y, uv2.y));
+	
+	# Convert to column/row
+	var w = 768;
+	var h = w;
+	var tw = 48;
+	var th = tw;
+	var column = int(roundf(min.x * w)) / 48;
+	var row = int(roundf(min.y * h)) / 48;
+	var columns = 768 / 48;
+	underFootPosition = result.position;
+	underFootTile = column % columns + row * columns;
+
 # Events
 func _ready() -> void:
 	meshInstance = get_node("MeshInstance3D")
+	_updateTileData();
 	pass
 
 func _process(delta:float) -> void:
@@ -46,16 +97,17 @@ func _process(delta:float) -> void:
 	var material:ShaderMaterial = meshInstance.get_surface_override_material(0)
 	material.set_shader_parameter("direction", direction)
 
-
 func _physics_process(delta: float) -> void:
+	# Update movement
+	updateMovement(delta);
+
 	# Gravity and friction
 	if !is_on_floor():
 		velocity.y -= gravity * delta;
 	else:
 		velocity += -(velocity * friction * delta);
-
-	# Update movement
-	updateMovement(delta)
+		if velocity.length() != 0:
+			_updateTileData();
 	
 	# Update character controller.
 	move_and_slide();

scripts/RosaCamera.gd

@@ -1,6 +1,7 @@
 extends Camera3D
 
-var PIXEL_SCALE:float = 4.0;
+const PIXEL_SCALE:float = 4.0;
+const WORLD_UNITS:float = 32.0;
 
 func _ready() -> void:
 	pass
@@ -10,7 +11,7 @@ func _process(delta: float) -> void:
 	var z:float = (
 		tan((deg_to_rad(180) - deg_to_rad(fov)) / 2.0) *
 		(get_viewport().size.y / 2.0)
-	) / PIXEL_SCALE;
+	) / PIXEL_SCALE / WORLD_UNITS;
 	
 	var rosa = get_node("..");
 	var look = rosa.position;

scripts/RosaController.gd

@@ -1,6 +1,6 @@
 extends "res://scripts/OverworldEntity.gd"
 
-var interactRange = 22;
+var interactRange = 0.7;
 
 func updateOverworldLogic(delta) -> void:
 	# Check if interact button is pressed