Merge pull request #135 from Spartan322/generalize/loading-and-events

1 files changed, 49 insertions, 0 deletions

diff --git a/game/src/Game/GlobalClass/ShaderManager.gd b/game/src/Game/GlobalClass/ShaderManager.gd
new file mode 100644
index 0000000..fd91e31
--- /dev/null
+++ b/game/src/Game/GlobalClass/ShaderManager.gd
@@ -0,0 +1,49 @@
+class_name ShaderManagerClass
+extends RefCounted
+
+const param_province_shape_tex : StringName = &"province_shape_tex"
+const param_province_shape_subdivisions : StringName = &"province_shape_subdivisions"
+const param_province_colour_tex : StringName = &"province_colour_tex"
+const param_hover_index : StringName = &"hover_index"
+const param_selected_index : StringName = &"selected_index"
+const param_terrain_tex : StringName = &"terrain_tex"
+const param_terrain_tile_factor : StringName = &"terrain_tile_factor"
+
+func set_up_shader(material : Material, add_cosmetic_textures : bool) -> Error:
+	# Shader Material
+	if material == null:
+		push_error("material is null!")
+		return FAILED
+	if not material is ShaderMaterial:
+		push_error("Invalid map mesh material class: ", material.get_class())
+		return FAILED
+	var shader_material : ShaderMaterial = material
+
+	# Province shape texture
+	var province_shape_texture := GameSingleton.get_province_shape_texture()
+	if province_shape_texture == null:
+		push_error("Failed to get province shape texture!")
+		return FAILED
+	shader_material.set_shader_parameter(param_province_shape_tex, province_shape_texture)
+	var subdivisions := GameSingleton.get_province_shape_image_subdivisions()
+	if subdivisions.x < 1 or subdivisions.y < 1:
+		push_error("Invalid province shape image subdivision: ", subdivisions.x, "x", subdivisions.y)
+		return FAILED
+	shader_material.set_shader_parameter(param_province_shape_subdivisions, Vector2(subdivisions))
+
+	if add_cosmetic_textures:
+		# Province colour texture
+		var map_province_colour_texture := GameSingleton.get_province_colour_texture()
+		if map_province_colour_texture == null:
+			push_error("Failed to get province colour image!")
+			return FAILED
+		shader_material.set_shader_parameter(param_province_colour_tex, map_province_colour_texture)
+
+		# Terrain texture
+		var terrain_texture := GameSingleton.get_terrain_texture()
+		if terrain_texture == null:
+			push_error("Failed to get terrain texture!")
+			return FAILED
+		shader_material.set_shader_parameter(param_terrain_tex, terrain_texture)
+
+	return OK