examples/additive: remove examples/additive

This is duplicated with examples/blend.

examples/additive/main.go

@@ -1,82 +0,0 @@
-// Copyright 2016 Hajime Hoshi
-//
-// 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 main
-
-import (
-	"bytes"
-	"image"
-	"image/color"
-	_ "image/png"
-	"log"
-
-	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/examples/resources/images"
-)
-
-const (
-	screenWidth  = 320
-	screenHeight = 240
-)
-
-var (
-	ebitenImage *ebiten.Image
-)
-
-type Game struct{}
-
-func (g *Game) Update() error {
-	return nil
-}
-
-func (g *Game) Draw(screen *ebiten.Image) {
-	const (
-		// The offset point to render the image.
-		ox = 10
-		oy = 10
-	)
-
-	screen.Fill(color.NRGBA{0x00, 0x40, 0x80, 0xff})
-
-	// Draw the image with 'Source Over' blend mode (default).
-	op := &ebiten.DrawImageOptions{}
-	op.GeoM.Translate(ox, oy)
-	screen.DrawImage(ebitenImage, op)
-
-	// Draw the image with 'Lighter (a.k.a Additive)' blend mode.
-	op = &ebiten.DrawImageOptions{}
-	w := ebitenImage.Bounds().Dx()
-	op.GeoM.Translate(ox+float64(w), oy)
-	op.Blend = ebiten.BlendLighter
-	screen.DrawImage(ebitenImage, op)
-}
-
-func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
-	return screenWidth, screenHeight
-}
-
-func main() {
-	// Decode an image from the image file's byte slice.
-	img, _, err := image.Decode(bytes.NewReader(images.Ebiten_png))
-	if err != nil {
-		log.Fatal(err)
-	}
-	ebitenImage = ebiten.NewImageFromImage(img)
-
-	ebiten.SetWindowSize(screenWidth*2, screenHeight*2)
-	ebiten.SetWindowTitle("Additive Blending (Ebitengine Demo)")
-	if err := ebiten.RunGame(&Game{}); err != nil {
-		log.Fatal(err)
-	}
-}