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Center the ebiten

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This commit is contained in:
Hajime Hoshi 2013-06-21 01:58:35 +09:00
parent 93565f79a9
commit d54c484165
1 changed files with 2 additions and 1 deletions
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3
examples/glut/main.go
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@ -123,7 +123,8 @@ func (game *DemoGame) Draw(g graphics.GraphicsContext, offscreen graphics.Textur
geometryMatrix.Translate(-tx/2, -ty/2)
geometryMatrix.Rotate(float64(game.x) / 60)
geometryMatrix.Translate(tx/2, ty/2)
geometryMatrix.Translate(100, 100)
centerX, centerY := float64(offscreen.Width) / 2, float64(offscreen.Height) / 2
geometryMatrix.Translate(centerX - tx/2, centerY - ty/2)
g.DrawTexture(game.ebitenTexture.ID,
0, 0, int(tx), int(ty),
geometryMatrix,