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Add alpha channel support

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NGnius (Graham) 2020-05-11 17:21:12 -04:00
parent c7b4f89828
commit 93f4bd37e2
1 changed files with 29 additions and 9 deletions
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38
Pixi/PixiPlugin.cs
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@ -114,7 +114,13 @@ namespace Pixi
// any further pixel-grouping optimisations (eg 2D grouping) risk increasing conversion time higher than O(x*y)
for (int x = 0; x < width; x++)
{
QuantizedPixel qVoxel = new QuantizedPixel{color = BlockColors.Default, darkness = 10};
QuantizedPixel qVoxel = new QuantizedPixel
{
block = BlockIDs.AbsoluteMathsBlock, // impossible canvas block
color = BlockColors.Default,
darkness = 10,
visible = false,
};
float3 scale = new float3(1, 1, 1);
position.x += (float)(blockSize);
for (int y = 0; y < height; y++)
@ -122,14 +128,17 @@ namespace Pixi
//position.y += (float)blockSize;
Color pixel = img.GetPixel(x, y);
QuantizedPixel qPixel = quantizeColor(pixel);
if (qPixel.darkness != qVoxel.darkness || qPixel.color != qVoxel.color || qPixel.visible != qVoxel.visible)
if (qPixel.darkness != qVoxel.darkness
|| qPixel.color != qVoxel.color
|| qPixel.visible != qVoxel.visible
|| qPixel.block != qVoxel.block)
{
if (y != 0)
{
if (qVoxel.visible)
{
position.y = zero_y + (float)((y * blockSize + (y - scale.y) * blockSize) / 2);
Placement.PlaceBlock(BlockIDs.AluminiumCube, position, color: qVoxel.color, darkness: qVoxel.darkness, scale: scale);
Placement.PlaceBlock(qVoxel.block, position, color: qVoxel.color, darkness: qVoxel.darkness, scale: scale);
blockCount++;
}
scale = new float3(1, 1, 1);
@ -145,13 +154,13 @@ namespace Pixi
if (qVoxel.visible)
{
position.y = zero_y + (float)((height * blockSize + (height - scale.y) * blockSize) / 2);
Placement.PlaceBlock(BlockIDs.AluminiumCube, position, color: qVoxel.color, darkness: qVoxel.darkness, scale: scale);
Placement.PlaceBlock(qVoxel.block, position, color: qVoxel.color, darkness: qVoxel.darkness, scale: scale);
blockCount++;
}
//position.y = zero_y;
}
Logging.CommandLog($"Placed {width}x{height} image beside you ({blockCount} blocks total)");
Logging.MetaLog($"Saved {(width * height) - blockCount} blocks while placing {filepath}");
Logging.MetaLog($"Saved {(width * height) - blockCount} blocks ({width * height / blockCount}x) while placing {filepath}");
}
private void setScale(uint _width, uint _height)
@ -282,18 +291,29 @@ namespace Pixi
color = BlockColors.Aqua;
}
}
if (darkness > 8 && !force) darkness = 8; // level 9 is not darker than lvl 8
if (darkness < 0) darkness = 0;
// level 9 is not darker than lvl 8
if (darkness > 8 && !force) darkness = 8;
// darkness 0 is the most saturated (it's not just the lightest)
if (darkness < 0) darkness = 0;
QuantizedPixel result = new QuantizedPixel
{
block = pixel.a > 0.75 ? BlockIDs.AluminiumCube : BlockIDs.GlassCube,
color = color,
darkness = (byte)darkness,
visible = pixel.a > 0.5f,
};
#if DEBUG
Logging.MetaLog($"Quantized Color {color} d:{darkness}");
Logging.MetaLog($"Quantized {color} (b:{result.block} d:{result.darkness} v:{result.visible})");
#endif
return new QuantizedPixel { color = color, darkness = (byte)darkness, visible = pixel.a > 0.5f};
return result;
}
}
internal struct QuantizedPixel
{
public BlockIDs block;
public BlockColors color;
public byte darkness;