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improve world offset calculation

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Bixilon 2023-05-23 21:00:39 +02:00
parent 5b4da9c4f1
commit 155b83d5b7
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GPG Key ID: 5CAD791931B09AC4
1 changed files with 11 additions and 7 deletions
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18
src/main/java/de/bixilon/minosoft/gui/rendering/camera/WorldOffset.kt
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@ -26,19 +26,23 @@ class WorldOffset(private val camera: Camera) : Drawable {
private set
override fun draw() {
val previous = offset
val position = camera.view.view.eyePosition
val blockPosition = camera.view.view.eyePosition.blockPosition
val mod = (position.blockPosition / MAX_DISTANCE) * MAX_DISTANCE
if (mod != previous) {
this.offset = mod
val previous = offset / MAX_DISTANCE
val maxOffset = (blockPosition + THRESHOLD) / MAX_DISTANCE
val minOffset = (blockPosition - THRESHOLD) / MAX_DISTANCE
if (maxOffset == previous || minOffset == previous) {
// we need to get away further
// this makes the "border" not just 1 pixel wide, it is 256 blocks wide
return
}
// TODO: optimize this and use MIN_DISTANCE
this.offset = (blockPosition / MAX_DISTANCE) * MAX_DISTANCE
// Log.log(LogMessageType.OTHER, LogLevels.VERBOSE) { "Offset changed: $offset" }
}
companion object {
const val MAX_DISTANCE = World.MAX_RENDER_DISTANCE * ProtocolDefinition.SECTION_WIDTH_X // coordinates higher than that value are not allowed
const val MIN_DISTANCE = MAX_DISTANCE - (World.MAX_RENDER_DISTANCE / 4) * ProtocolDefinition.SECTION_WIDTH_X // only if value is lower that that value coordinates will be back offset
const val THRESHOLD = (World.MAX_RENDER_DISTANCE / 8) * ProtocolDefinition.SECTION_WIDTH_X // only if value is lower that that value coordinates will be back offset
}
}