65 lines
1.2 KiB
Go
65 lines
1.2 KiB
Go
package d2gui
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import (
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"image/color"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2math"
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)
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func renderSegmented(animation d2interface.Animation, segmentsX, segmentsY, frameOffset int,
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target d2interface.Surface) error {
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var currentY int
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for y := 0; y < segmentsY; y++ {
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var currentX, maxHeight int
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for x := 0; x < segmentsX; x++ {
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if err := animation.SetCurrentFrame(x + y*segmentsX + frameOffset*segmentsX*segmentsY); err != nil {
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return err
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}
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target.PushTranslation(x+currentX, y+currentY)
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animation.Render(target)
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target.Pop()
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width, height := animation.GetCurrentFrameSize()
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maxHeight = d2math.MaxInt(maxHeight, height)
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currentX += width
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}
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currentY += maxHeight
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}
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return nil
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}
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func half(n int) int {
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return n / 2
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}
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func rgbaColor(rgba uint32) color.RGBA {
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result := color.RGBA{}
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a, b, g, r := 0, 1, 2, 3
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byteWidth := 8
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byteMask := 0xff
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for idx := 0; idx < 4; idx++ {
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shift := idx * byteWidth
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component := uint8(rgba>>shift) & uint8(byteMask)
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switch idx {
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case a:
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result.A = component
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case b:
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result.B = component
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case g:
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result.G = component
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case r:
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result.R = component
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}
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}
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return result
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}
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