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nicer building fade

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This commit is contained in:
Hannes Janetzek 2014-05-25 00:23:13 +02:00
parent 6bc3818318
commit 5af831abb5
1 changed files with 28 additions and 30 deletions
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58
vtm/src/org/oscim/layers/tile/buildings/BuildingRenderer.java
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@ -1,7 +1,9 @@
package org.oscim.layers.tile.buildings;
import static java.lang.System.currentTimeMillis;
import static org.oscim.layers.tile.MapTile.State.NEW_DATA;
import static org.oscim.layers.tile.MapTile.State.READY;
import static org.oscim.utils.FastMath.clamp;
import org.oscim.layers.tile.MapTile;
import org.oscim.layers.tile.TileDistanceSort;
@ -12,9 +14,11 @@ import org.oscim.renderer.GLViewport;
import org.oscim.renderer.MapRenderer;
import org.oscim.renderer.elements.ElementLayers;
import org.oscim.renderer.elements.ExtrusionLayers;
import org.oscim.utils.FastMath;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class BuildingRenderer extends ExtrusionRenderer {
static final Logger log = LoggerFactory.getLogger(BuildingRenderer.class);
private final TileRenderer mTileLayer;
private final TileSet mTileSet;
@ -22,10 +26,11 @@ public class BuildingRenderer extends ExtrusionRenderer {
private final int mZoomMin;
private final int mZoomMax;
private final float mFadeInTime = 300;
private final float mFadeOutTime = 500;
private final float mFadeInTime = 250;
private final float mFadeOutTime = 400;
private long mStartTime;
private long mAnimTime;
private boolean mShow;
public BuildingRenderer(TileRenderer tileRenderLayer, int zoomMin, int zoomMax,
boolean mesh, boolean alpha) {
@ -50,43 +55,36 @@ public class BuildingRenderer extends ExtrusionRenderer {
int diff = (v.pos.zoomLevel - mZoomMin);
/* if below min zoom or already faded out */
if ((diff < -1)) {
if (diff < -1) {
mAlpha = 0;
mShow = false;
setReady(false);
return;
}
boolean show = diff >= 0;
if (show) {
if (diff >= 0) {
if (mAlpha < 1) {
//log.debug("fade in {}", mAlpha);
long now = System.currentTimeMillis();
if (mStartTime == 0) {
mStartTime = now;
}
float a = (now - mStartTime) / mFadeInTime;
mAlpha = FastMath.clamp(a, 0, 1);
long now = currentTimeMillis();
if (!mShow)
mAnimTime = now - (long) (mAlpha * mFadeInTime);
mShow = true;
mAlpha = clamp((now - mAnimTime) / mFadeInTime, 0, 1);
MapRenderer.animate();
} else
mStartTime = 0;
}
} else {
if (mAlpha > 0) {
//log.debug("fade out {} {}", mAlpha, mStartTime);
long now = System.currentTimeMillis();
if (mStartTime == 0) {
mStartTime = now + 200; // delay hide a little
}
long dt = (now - mStartTime);
if (dt > 0) {
float a = 1 - dt / mFadeOutTime;
mAlpha = FastMath.clamp(a, 0, 1);
}
long now = currentTimeMillis();
if (mShow)
mAnimTime = now - (long) ((1 - mAlpha) * mFadeOutTime);
mShow = false;
mAlpha = clamp(1 - (now - mAnimTime) / mFadeOutTime, 0, 1);
MapRenderer.animate();
} else
mStartTime = 0;
}
}
if (mAlpha == 0 || v.pos.zoomLevel < (mZoomMin - 1)) {
if (mAlpha == 0) {
setReady(false);
return;
}