vendor dependencies, make some changes to how input is done

vendor/github.com/hajimehoshi/ebiten/v2/internal/graphicscommand/shader.go

@@ -0,0 +1,58 @@
+// Copyright 2020 The Ebiten Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package graphicscommand
+
+import (
+	"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
+	"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
+)
+
+var nextShaderID = 1
+
+func genNextShaderID() int {
+	id := nextShaderID
+	nextShaderID++
+	return id
+}
+
+type Shader struct {
+	shader graphicsdriver.Shader
+	ir     *shaderir.Program
+	id     int
+}
+
+func NewShader(ir *shaderir.Program) *Shader {
+	s := &Shader{
+		ir: ir,
+		id: genNextShaderID(),
+	}
+	c := &newShaderCommand{
+		result: s,
+		ir:     ir,
+	}
+	theCommandQueueManager.enqueueCommand(c)
+	return s
+}
+
+func (s *Shader) Dispose() {
+	c := &disposeShaderCommand{
+		target: s,
+	}
+	theCommandQueueManager.enqueueCommand(c)
+}
+
+func (s *Shader) unit() shaderir.Unit {
+	return s.ir.Unit
+}