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Modified animation manager to provide a timestamp with every tick.

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Modified sprite and path code to make use of these timestamps to determine
a sprite's progress along the path. Abstracted the path stuff so that
paths other than line segment paths can be cleanly implemented.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@337 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2001-09-13 19:10:26 +00:00
parent 2fc86f89b3
commit 780e39d4e9
11 changed files with 410 additions and 321 deletions
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src/java/com/threerings/miso/client/util/IsoUtil.java
+13 -13
View File
@@ -1,12 +1,12 @@
//
// $Id: IsoUtil.java,v 1.5 2001/08/15 22:16:43 shaper Exp $
// $Id: IsoUtil.java,v 1.6 2001/09/13 19:10:26 mdb Exp $
package com.threerings.miso.scene.util;
import java.awt.Point;
import java.awt.Polygon;
import com.threerings.media.sprite.Path;
import com.threerings.media.sprite.Sprite;
import com.threerings.media.util.MathUtil;
import com.threerings.miso.Log;
@@ -28,7 +28,7 @@ public class IsoUtil
* @param bx the x-position of point B.
* @param by the y-position of point B.
*
* @return the direction specified as one of the <code>Path</code>
* @return the direction specified as one of the <code>Sprite</code>
* class's direction constants.
*/
public static int getDirection (
@@ -50,7 +50,7 @@ public class IsoUtil
// compare tile coordinates to determine direction
int dir = getIsoDirection(tax, tay, tbx, tby);
if (dir != Path.DIR_NONE) return dir;
if (dir != Sprite.DIR_NONE) return dir;
// destination point is in the same tile as the
// origination point, so consider fine coordinates
@@ -66,7 +66,7 @@ public class IsoUtil
dir = getIsoDirection(fax, fay, fbx, fby);
// arbitrarily return southwest if fine coords were also equivalent
return (dir == -1) ? Path.DIR_SOUTHWEST : dir;
return (dir == -1) ? Sprite.DIR_SOUTHWEST : dir;
}
/**
@@ -81,23 +81,23 @@ public class IsoUtil
* @param bx the x-position of point B.
* @param by the y-position of point B.
*
* @return the direction specified as one of the <code>Path</code>
* class's direction constants, or <code>Path.DIR_NONE</code>
* @return the direction specified as one of the <code>Sprite</code>
* class's direction constants, or <code>Sprite.DIR_NONE</code>
* if point B is equivalent to point A.
*/
public static int getIsoDirection (int ax, int ay, int bx, int by)
{
if (bx > ax) {
if (by == ay) return Path.DIR_SOUTH;
return (by < ay) ? Path.DIR_SOUTHEAST : Path.DIR_SOUTHWEST;
if (by == ay) return Sprite.DIR_SOUTH;
return (by < ay) ? Sprite.DIR_SOUTHEAST : Sprite.DIR_SOUTHWEST;
} else if (bx == ax) {
if (by == ay) return Path.DIR_NONE;
return (by < ay) ? Path.DIR_EAST : Path.DIR_WEST;
if (by == ay) return Sprite.DIR_NONE;
return (by < ay) ? Sprite.DIR_EAST : Sprite.DIR_WEST;
} else { // bx < ax
if (by == ay) return Path.DIR_NORTH;
return (by < ay) ? Path.DIR_NORTHEAST : Path.DIR_NORTHWEST;
if (by == ay) return Sprite.DIR_NORTH;
return (by < ay) ? Sprite.DIR_NORTHEAST : Sprite.DIR_NORTHWEST;
}
}