cromer/DroidQuest
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Merge pull request #9 from cognitivegears/master

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Pathfinding initial commit
This commit is contained in:
Thomas Foote 2014-07-20 11:26:14 -04:00
commit 70c43df686
25 changed files with 593 additions and 201 deletions
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111
src/com/droidquest/avatars/GameCursor.java
View File

@ -3,6 +3,7 @@ package com.droidquest.avatars;
import com.droidquest.Room;
import com.droidquest.RoomDisplay;
import com.droidquest.items.*;
import com.droidquest.pathfinder.Node;
import javax.swing.*;
import java.awt.*;
@ -324,81 +325,51 @@ public class GameCursor extends Player {
return level.cheatmode;
}
public void Animate() {
if (automove == 1 && room == null) {
automove = 0;
}
if (automove == 1) {
int dx = autoX - x;
int dy = autoY - y;
if (dx == 0 && dy == 0) {
automove = 0;
return;
}
if (dx < -28) {
dx = -28;
}
if (dx > 28) {
dx = 28;
}
if (dy < -32) {
dy = -32;
}
if (dy > 32) {
dy = 32;
}
walk = 1 - walk;
if (dx == 0) {
if (dy < 0) {
currentIcon = icons[0 + walk].getImage();
}
else {
currentIcon = icons[2 + walk].getImage();
}
@Override
protected void animateCharacter(int dx, int dy) {
walk = 1 - walk;
if (dx == 0) {
if (dy < 0) {
currentIcon = icons[0 + walk].getImage();
}
else {
if (dx < 0) {
currentIcon = icons[4 + walk].getImage();
}
else {
currentIcon = icons[6 + walk].getImage();
}
}
if (dx > 0) {
moveRight(dx);
}
if (dx < 0) {
moveLeft(-dx);
}
if (dy > 0) {
moveDown(dy);
}
if (dy < 0) {
moveUp(-dy);
}
}
if (automove == 2) {
walk = 1 - walk;
if (autoX > 0) {
currentIcon = icons[6 + walk].getImage();
moveRight(autoX);
}
if (autoX < 0) {
currentIcon = icons[4 + walk].getImage();
moveLeft(-autoX);
}
if (autoY > 0) {
currentIcon = icons[2 + walk].getImage();
moveDown(autoY);
}
if (autoY < 0) {
currentIcon = icons[0 + walk].getImage();
moveUp(-autoY);
}
}
else {
if (dx < 0) {
currentIcon = icons[4 + walk].getImage();
}
else {
currentIcon = icons[6 + walk].getImage();
}
}
}
@Override
protected void autoMoveFull() {
walk = 1 - walk;
if (autoX > 0) {
currentIcon = icons[6 + walk].getImage();
moveRight(autoX);
}
if (autoX < 0) {
currentIcon = icons[4 + walk].getImage();
moveLeft(-autoX);
}
if (autoY > 0) {
currentIcon = icons[2 + walk].getImage();
moveDown(autoY);
}
if (autoY < 0) {
currentIcon = icons[0 + walk].getImage();
moveUp(-autoY);
}
}
public GenericRobot PlayerInRobot(GenericRobot robot) {

16
src/com/droidquest/avatars/PaintBrush.java
View File

@ -93,8 +93,8 @@ public class PaintBrush extends Player {
paintMats[1] = Material.FindSimiliar(new Material(Color.green, false, false));
Item robot = null;
for(Item item : level.items) {
if(item instanceof OrangeRobot) {
for (Item item : level.items) {
if (item instanceof OrangeRobot) {
robot = item;
}
}
@ -104,14 +104,14 @@ public class PaintBrush extends Player {
paintMats[2] = Material.FindSimiliar(new RobotBlocker(robot, new Color(255, 128, 0)));
for (Item item : level.items) {
if(item instanceof WhiteRobot) {
if (item instanceof WhiteRobot) {
robot = item;
}
}
paintMats[3] = Material.FindSimiliar(new RobotBlocker(robot, Color.white));
for(Item item : level.items) {
if(item instanceof BlueRobot) {
for (Item item : level.items) {
if (item instanceof BlueRobot) {
robot = item;
}
}
@ -210,9 +210,10 @@ public class PaintBrush extends Player {
@Override
protected boolean handleRepeatSpace() {
return false;
return false;
}
@Override
public void moveUp(boolean nudge) {
int dist = 32;
if (nudge) {
@ -231,6 +232,7 @@ public class PaintBrush extends Player {
}
}
@Override
public void moveDown(boolean nudge) {
int dist = 32;
if (nudge) {
@ -249,6 +251,7 @@ public class PaintBrush extends Player {
}
}
@Override
public void moveLeft(boolean nudge) {
int dist = 28;
if (nudge) {
@ -267,6 +270,7 @@ public class PaintBrush extends Player {
}
}
@Override
public void moveRight(boolean nudge) {
int dist = 28;
if (nudge) {

124
src/com/droidquest/avatars/SolderingPen.java
View File

@ -5,6 +5,7 @@ import com.droidquest.Wire;
import com.droidquest.chipstuff.Port;
import com.droidquest.devices.Device;
import com.droidquest.items.Item;
import com.droidquest.pathfinder.Node;
import javax.swing.*;
import java.awt.*;
@ -12,6 +13,7 @@ import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
public class SolderingPen extends Device implements Avatar {
private boolean hot;
@ -225,6 +227,7 @@ public class SolderingPen extends Device implements Avatar {
CheckPort();
}
@Override
public void Animate() {
Room tempRoom = room;
super.Animate();
@ -297,16 +300,16 @@ public class SolderingPen extends Device implements Avatar {
public boolean KeyUp(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_C && handleGameCursor()) {
return false;
return false;
}
else if (e.getKeyCode() == KeyEvent.VK_R && handleRadio()) {
return false;
return false;
}
else if (e.getKeyCode() == KeyEvent.VK_P && handlePaintbrush()) {
return false;
return false;
}
else if (e.getKeyCode() == KeyEvent.VK_SLASH && handleHelp()) {
return false;
return false;
}
else if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
if (carriedBy == null) {
@ -340,13 +343,13 @@ public class SolderingPen extends Device implements Avatar {
WirePort();
}
else if (e.getKeyCode() == KeyEvent.VK_F && handleFlipDevice()) {
return false;
return false;
}
else if (e.getKeyCode() == KeyEvent.VK_E && handleEnterRoom()) {
return false;
return false;
}
else if (e.getKeyCode() == KeyEvent.VK_X && handleExitRoom()) {
return false;
return false;
}
return false;
}
@ -387,50 +390,23 @@ public class SolderingPen extends Device implements Avatar {
return false;
}
public void MouseClick(MouseEvent e) {
int button = 0;
if ((e.getModifiers() & InputEvent.BUTTON1_MASK) == InputEvent.BUTTON1_MASK) {
button = 1;
}
if ((e.getModifiers() & InputEvent.BUTTON3_MASK) == InputEvent.BUTTON3_MASK) {
button = 3;
}
@Override
protected int getWidthModifier() {
return 2;
}
if (button == 1) {
if (e.getClickCount() == 1) {
autoX = e.getX() - 2;
autoY = e.getY() - 20;
automove = 1;
}
else if (e.getClickCount() == 2) {
int dx = e.getX() - 2 - x;
int dy = e.getY() - 20 - y;
if (Math.abs(dx) > Math.abs(dy)) {
autoY = 0;
autoX = 28;
if (dx < 0) {
autoX = -28;
}
automove = 2;
}
else {
autoX = 0;
autoY = 32;
if (dy < 0) {
autoY = -32;
}
automove = 2;
}
}
}
@Override
protected int getHeightModifier() {
return 20;
}
if (button == 3) {
KeyEvent k = new KeyEvent(e.getComponent(), e.getID(),
e.getWhen(), 0,
KeyEvent.VK_SPACE, ' ');
KeyUp(k);
}
@Override
protected void setFinePositioning(MouseEvent e) {
// Fine positioning needed for solderpen
int finalX = e.getX() - getWidthModifier();
int finalY = e.getY() - getHeightModifier();
autoPath.add(new Node(finalX, finalY));
}
@Override
@ -592,32 +568,32 @@ public class SolderingPen extends Device implements Avatar {
@Override
public boolean handleFlipDevice() {
if (hot) {
if (ports[0].myWire != null) // If SP is wired
{
// Flip wire attached to SP
Port tempPort = ports[0].myWire.fromPort;
ports[0].myWire.fromPort = ports[0].myWire.toPort;
ports[0].myWire.toPort = tempPort;
}
else if (ports[0].myWire == null) // If SP is not wired
{
// Flip wire attached to CurrentPort
if (currentPort.myWire != null) {
Port tempPort = currentPort.myWire.fromPort;
currentPort.myWire.fromPort = currentPort.myWire.toPort;
currentPort.myWire.toPort = tempPort;
}
}
}
else {
if (ports[0].myWire != null) // If SP is wired
{
// Flip wire attached to SP
Port tempPort = ports[0].myWire.fromPort;
ports[0].myWire.fromPort = ports[0].myWire.toPort;
ports[0].myWire.toPort = tempPort;
}
}
if (ports[0].myWire != null) // If SP is wired
{
// Flip wire attached to SP
Port tempPort = ports[0].myWire.fromPort;
ports[0].myWire.fromPort = ports[0].myWire.toPort;
ports[0].myWire.toPort = tempPort;
}
else if (ports[0].myWire == null) // If SP is not wired
{
// Flip wire attached to CurrentPort
if (currentPort.myWire != null) {
Port tempPort = currentPort.myWire.fromPort;
currentPort.myWire.fromPort = currentPort.myWire.toPort;
currentPort.myWire.toPort = tempPort;
}
}
}
else {
if (ports[0].myWire != null) // If SP is wired
{
// Flip wire attached to SP
Port tempPort = ports[0].myWire.fromPort;
ports[0].myWire.fromPort = ports[0].myWire.toPort;
ports[0].myWire.toPort = tempPort;
}
}
return true;
}
}

100
src/com/droidquest/items/Item.java
View File

@ -5,6 +5,8 @@ import com.droidquest.Wire;
import com.droidquest.devices.Device;
import com.droidquest.levels.Level;
import com.droidquest.materials.ChipTrash;
import com.droidquest.pathfinder.Node;
import com.droidquest.pathfinder.Pathfinder;
import javax.swing.*;
import java.awt.*;
@ -15,6 +17,7 @@ import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;
public class Item implements Serializable, Cloneable {
public transient static Level level;
@ -28,6 +31,7 @@ public class Item implements Serializable, Cloneable {
public transient int autoX; // Destination of automovement
public transient int autoY; // Destination of automovement
public Room InternalRoom = null; // Room inside this item, if any.
public transient ArrayList<Node> autoPath = new ArrayList<Node>();
protected int repeating = 0; // Keyboard repeat.
public int charge = 0; // Battery Charge of this item, if any.
@ -225,6 +229,24 @@ public class Item implements Serializable, Cloneable {
return false;
}
protected void findPath(int startX, int startY, int endX, int endY) {
Pathfinder pf = new Pathfinder(room);
autoPath = pf.search(startX, startY, endX, endY, this);
}
protected int getWidthModifier() {
return width / 2;
}
protected int getHeightModifier() {
return height / 2;
}
protected void setFinePositioning(MouseEvent e) {
// By default, no fine positioning
}
public void MouseClick(MouseEvent e) {
int button = 0;
if ((e.getModifiers() & InputEvent.BUTTON1_MASK) == InputEvent.BUTTON1_MASK) {
@ -236,15 +258,29 @@ public class Item implements Serializable, Cloneable {
if (button == 1) {
if (e.getClickCount() == 1) {
autoX = e.getX() - width / 2;
autoY = e.getY() - height / 2;
autoX -= autoX % 2; // Even numbered pixel only!
autoY -= autoY % 2;
automove = 1;
int endX = e.getX() / 28;
int endY = e.getY() / 32;
int startX = x / 28;
int startY = y / 32;
findPath(startX, startY, endX, endY);
if(autoPath != null && autoPath.size() > 0) {
setFinePositioning(e);
Node next = autoPath.remove(0);
autoX = next.getX();
autoY = next.getY();
autoX -= autoX % 2; // Even numbered pixel only!
autoY -= autoY % 2;
automove = 1;
}
}
else if (e.getClickCount() == 2) {
int dx = e.getX() - width / 2 - x;
int dy = e.getY() - height / 2 - y;
int dx = e.getX() - getWidthModifier() - x;
int dy = e.getY() - getHeightModifier() - y;
if (Math.abs(dx) > Math.abs(dy)) {
autoY = 0;
autoX = 28;
@ -436,6 +472,10 @@ public class Item implements Serializable, Cloneable {
moveRight(dist);
}
protected void animateCharacter(int dx, int dy) {
}
public void Animate() {
if (automove == 1 && room == null) {
automove = 0;
@ -443,8 +483,21 @@ public class Item implements Serializable, Cloneable {
if (automove == 1) {
int dx = autoX - x;
int dy = autoY - y;
if (dx == 0 && dy == 0) {
automove = 0;
if(autoPath.size() > 0) {
Node next = autoPath.remove(0);
autoX = next.getX();
autoY = next.getY();
autoX -= autoX % 2; // Even numbered pixel only!
autoY -= autoY % 2;
dx = autoX - x;
dy = autoY - y;
}
if(dx == 0 && dy == 0) {
automove = 0;
return;
}
}
if (dx < -28) {
dx = -28;
@ -458,6 +511,9 @@ public class Item implements Serializable, Cloneable {
if (dy > 32) {
dy = 32;
}
animateCharacter(dx, dy);
if (dx > 0) {
moveRight(dx);
}
@ -472,18 +528,22 @@ public class Item implements Serializable, Cloneable {
}
}
if (automove == 2) {
if (autoX > 0) {
moveRight(autoX);
}
if (autoX < 0) {
moveLeft(-autoX);
}
if (autoY > 0) {
moveDown(autoY);
}
if (autoY < 0) {
moveUp(-autoY);
}
autoMoveFull();
}
}
protected void autoMoveFull() {
if (autoX > 0) {
moveRight(autoX);
}
if (autoX < 0) {
moveLeft(-autoX);
}
if (autoY > 0) {
moveDown(autoY);
}
if (autoY < 0) {
moveUp(-autoY);
}
}

2
src/com/droidquest/levels/RO2.java
View File

@ -12,6 +12,8 @@ import com.droidquest.devices.ContactSensor;
import com.droidquest.devices.SmallChip;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.Switch;
import com.droidquest.materials.switches.Switch1;
import java.awt.*;

3
src/com/droidquest/levels/RO3.java
View File

@ -15,6 +15,9 @@ import com.droidquest.devices.StormShield;
import com.droidquest.items.Button;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.ElevatorSwitch;
import com.droidquest.materials.switches.SwitchA;
import com.droidquest.materials.switches.SwitchB;
import java.awt.*;

4
src/com/droidquest/levels/RO4.java
View File

@ -10,6 +10,10 @@ import com.droidquest.decorations.Graphix;
import com.droidquest.devices.SmallChip;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.Switch4A;
import com.droidquest.materials.switches.Switch4B;
import com.droidquest.materials.switches.Switch4C;
import com.droidquest.materials.switches.Switch4D;
import java.awt.*;

1
src/com/droidquest/levels/RO5.java
View File

@ -10,6 +10,7 @@ import com.droidquest.decorations.Arrow;
import com.droidquest.decorations.Graphix;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.Switch;
import java.awt.*;

1
src/com/droidquest/levels/RO6.java
View File

@ -11,6 +11,7 @@ import com.droidquest.decorations.Graphix;
import com.droidquest.devices.DirectionalSensor;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.Switch;
import java.awt.*;

1
src/com/droidquest/levels/ROLab.java
View File

@ -8,6 +8,7 @@ import com.droidquest.decorations.Arrow;
import com.droidquest.devices.*;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.MazeLock;
import java.awt.*;

1
src/com/droidquest/levels/ROTut3.java
View File

@ -9,6 +9,7 @@ import com.droidquest.decorations.Arrow;
import com.droidquest.devices.*;
import com.droidquest.items.*;
import com.droidquest.materials.*;
import com.droidquest.materials.switches.MazeLock;
import java.awt.*;

2
src/com/droidquest/levels/ROTutF.java
View File

@ -11,7 +11,7 @@ import com.droidquest.items.*;
import com.droidquest.materials.Material;
import com.droidquest.materials.PanicButton;
import com.droidquest.materials.Portal;
import com.droidquest.materials.Switch;
import com.droidquest.materials.switches.Switch;
import java.awt.*;

5
src/com/droidquest/materials/Material.java
View File

@ -1,6 +1,7 @@
package com.droidquest.materials;
import com.droidquest.RoomDisplay;
import com.droidquest.avatars.PaintBrush;
import com.droidquest.items.Item;
import com.droidquest.levels.Level;
@ -62,6 +63,10 @@ public class Material implements Serializable, Cloneable {
}
public boolean Passable(Item item) {
// The PaintBrush can pass anything
if(item instanceof PaintBrush) {
return true;
}
return passable;
}

7
src/com/droidquest/items/ElevatorSwitch.java → src/com/droidquest/materials/switches/ElevatorSwitch.java
View File

@ -1,9 +1,10 @@
package com.droidquest.items;
package com.droidquest.materials.switches;
import com.droidquest.Room;
import com.droidquest.decorations.Arrow;
import com.droidquest.items.Item;
import com.droidquest.materials.ElevatorOutPortal;
import com.droidquest.materials.Switch;
import com.droidquest.materials.Material;
public class ElevatorSwitch extends Switch {
private int animationState = 0;
@ -45,7 +46,7 @@ public class ElevatorSwitch extends Switch {
animationState++;
break;
case 3:
if (ElevatorOutPortal.outRoom == level.rooms.elementAt(11)) {
if (ElevatorOutPortal.outRoom == Material.level.rooms.elementAt(11)) {
for (int a = 0; a < room.arrows.size(); a++) {
Arrow arrow = room.arrows.elementAt(a);
arrow.direction = Arrow.DIR_UP;

11
src/com/droidquest/items/MazeLock.java → src/com/droidquest/materials/switches/MazeLock.java
View File

@ -1,6 +1,7 @@
package com.droidquest.items;
package com.droidquest.materials.switches;
import com.droidquest.materials.Switch;
import com.droidquest.items.Item;
import com.droidquest.materials.Material;
public class MazeLock extends Switch {
@ -12,15 +13,15 @@ public class MazeLock extends Switch {
public void TouchedByItem(Item item) {
if (paintbrush == null) {
paintbrush = level.paintbrush;
paintbrush = Material.level.paintbrush;
}
if (!value) {
level.paintbrush = null;
Material.level.paintbrush = null;
value = true;
}
else {
level.paintbrush = paintbrush;
Material.level.paintbrush = paintbrush;
value = false;
}
}

3
src/com/droidquest/materials/Switch.java → src/com/droidquest/materials/switches/Switch.java
View File

@ -1,7 +1,8 @@
package com.droidquest.materials;
package com.droidquest.materials.switches;
import com.droidquest.Room;
import com.droidquest.items.Item;
import com.droidquest.materials.Material;
import javax.swing.*;
import java.awt.*;

7
src/com/droidquest/materials/Switch1.java → src/com/droidquest/materials/switches/Switch1.java
View File

@ -1,7 +1,8 @@
package com.droidquest.materials;
package com.droidquest.materials.switches;
import com.droidquest.items.Item;
import com.droidquest.items.Train;
import com.droidquest.materials.Material;
public class Switch1 extends Switch {
private transient Train train;
@ -12,8 +13,8 @@ public class Switch1 extends Switch {
public void TouchedByItem(Item item) {
if (train == null) {
for (int a = 0; a < level.items.size(); a++) {
Item t = level.items.elementAt(a);
for (int a = 0; a < Material.level.items.size(); a++) {
Item t = Material.level.items.elementAt(a);
if (t.getClass().toString().endsWith("Train")) {
train = (Train) t;
}

4
src/com/droidquest/items/Switch4A.java → src/com/droidquest/materials/switches/Switch4A.java
View File

@ -1,7 +1,7 @@
package com.droidquest.items;
package com.droidquest.materials.switches;
import com.droidquest.Room;
import com.droidquest.materials.Switch;
import com.droidquest.items.Item;
public class Switch4A extends Switch {
int count = 0;

8
src/com/droidquest/items/Switch4B.java → src/com/droidquest/materials/switches/Switch4B.java
View File

@ -1,7 +1,7 @@
package com.droidquest.items;
package com.droidquest.materials.switches;
import com.droidquest.items.Item;
import com.droidquest.materials.Material;
import com.droidquest.materials.Switch;
public class Switch4B extends Switch {
private transient Switch4A sw = null;
@ -12,8 +12,8 @@ public class Switch4B extends Switch {
public void TouchedByItem(Item item) {
if (sw == null) {
for (int a = 0; a < level.materials.size(); a++) {
Material mat = level.materials.elementAt(a);
for (int a = 0; a < Material.level.materials.size(); a++) {
Material mat = Material.level.materials.elementAt(a);
if (mat instanceof Switch4A) {
sw = (Switch4A) mat;
}

8
src/com/droidquest/items/Switch4C.java → src/com/droidquest/materials/switches/Switch4C.java
View File

@ -1,7 +1,7 @@
package com.droidquest.items;
package com.droidquest.materials.switches;
import com.droidquest.items.Item;
import com.droidquest.materials.Material;
import com.droidquest.materials.Switch;
public class Switch4C extends Switch {
private transient Switch4A sw = null;
@ -12,8 +12,8 @@ public class Switch4C extends Switch {
public void TouchedByItem(Item item) {
if (sw == null) {
for (int a = 0; a < level.materials.size(); a++) {
Material mat = level.materials.elementAt(a);
for (int a = 0; a < Material.level.materials.size(); a++) {
Material mat = Material.level.materials.elementAt(a);
if (mat instanceof Switch4A) {
sw = (Switch4A) mat;
}

8
src/com/droidquest/items/Switch4D.java → src/com/droidquest/materials/switches/Switch4D.java
View File

@ -1,7 +1,7 @@
package com.droidquest.items;
package com.droidquest.materials.switches;
import com.droidquest.items.Item;
import com.droidquest.materials.Material;
import com.droidquest.materials.Switch;
public class Switch4D extends Switch {
private transient Switch4A sw = null;
@ -12,8 +12,8 @@ public class Switch4D extends Switch {
public void TouchedByItem(Item item) {
if (sw == null) {
for (int a = 0; a < level.materials.size(); a++) {
Material mat = level.materials.elementAt(a);
for (int a = 0; a < Material.level.materials.size(); a++) {
Material mat = Material.level.materials.elementAt(a);
if (mat instanceof Switch4A) {
sw = (Switch4A) mat;
}

4
src/com/droidquest/materials/SwitchA.java → src/com/droidquest/materials/switches/SwitchA.java
View File

@ -1,4 +1,4 @@
package com.droidquest.materials;
package com.droidquest.materials.switches;
import com.droidquest.items.Item;
@ -11,7 +11,7 @@ public class SwitchA extends Switch {
// something like that.
public SwitchA() {
super(Switch.ROT_LEFT);
super(ROT_LEFT);
}
public void TouchedByItem(Item item) {

5
src/com/droidquest/materials/SwitchB.java → src/com/droidquest/materials/switches/SwitchB.java
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@ -1,8 +1,9 @@
package com.droidquest.materials;
package com.droidquest.materials.switches;
import com.droidquest.decorations.TextBox;
import com.droidquest.items.Item;
import com.droidquest.items.Sentry;
import com.droidquest.materials.Material;
public class SwitchB extends Switch {
private transient SwitchA switchA = null;
@ -10,7 +11,7 @@ public class SwitchB extends Switch {
private transient Sentry sentry = null;
public SwitchB() {
super(Switch.ROT_LEFT);
super(ROT_LEFT);
}
public void TouchedByItem(Item item) {

180
src/com/droidquest/pathfinder/Node.java Normal file
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@ -0,0 +1,180 @@
package com.droidquest.pathfinder;
import com.droidquest.materials.Material;
/**
* Represents a Node in a path, using the A* algorithm.
*/
public class Node implements Cloneable {
private int x = -1;
private int y = -1;
private Material material = null;
private int gCost = 0;
private int hCost = 0;
private int fCost = 0;
Node parent = null;
/**
* Create a new, empty Node
*/
public Node() {
this(-1, -1, null, null);
}
/**
* Create a new Node with given coordinates
* @param x Coordinate (of the room array, not screen location)
* @param y Coordinate (of the room array, not screen location)
*/
public Node(int x, int y) {
this(x, y, null, null);
}
/**
* Create a new room Node with the given coordinates and material
* @param x Coordinate (of the room array, not screen location)
* @param y Coordinate (of the room array, not screen location)
* @param mat Material at the Node location
*/
public Node(int x, int y, Material mat) {
this(x, y, null, mat);
}
/**
* Create a new room Node with a given parent Node (for pathing)
* @param x Coordinate (of the room array, not screen location)
* @param y Coordinate (of the room array, not screen location)
* @param parent current Parent node
*/
public Node(int x, int y, Node parent) {
this(x, y, parent, null);
}
/**
* Create a new room node with a given parent Node and Material
* @param x Coordinate (of the room array, not screen location)
* @param y Coordinate (of the room array, not screen location)
* @param parent current Parent node
* @param mat Material at the Node location
*/
public Node(int x, int y, Node parent, Material mat) {
this.x = x;
this.y = y;
this.parent = parent;
this.material = mat;
}
/**
* Retrieve the current room location X coordinate (room array, not screen location)
* @return X coordinate
*/
public int getX() {
return x;
}
/**
* Set the current room location X coordinate (room array, not screen location)
* @param x coordinate
*/
public void setX(int x) {
this.x = x;
}
/**
* Retrieve the current room location Y coordinate (room array, not screen location)
* @return y coordinate
*/
public int getY() {
return y;
}
/**
* Set the current room Y coordinate (room array, not screen location)
* @param y coordinate
*/
public void setY(int y) {
this.y = y;
}
/**
* Retrieve the currently set Material for the Node (or null if not set)
* @return Material
* @see com.droidquest.materials.Material
*/
public Material getMaterial() {
return material;
}
/**
* Set the Material for the Node
* @param material Material
* @see com.droidquest.materials.Material
*/
public void setMaterial(Material material) {
this.material = material;
}
/**
* Create a clone of this Node
* @return Node clone (as Object)
*/
public Object clone() {
try {
return super.clone();
}
catch(CloneNotSupportedException cnse) {
System.out.println("Clone not supported!");
return this;
}
}
/**
* Set the gCost (cost to the current Node from the origin)
* @return int cost
*/
public int getgCost() {
return gCost;
}
/**
* Set the gCost (cost to the current Node from the origin)
* @param gCost int cost
*/
public void setgCost(int gCost) {
this.gCost = gCost;
}
/**
* Retrieves the hCost (heuristic cost) from the current Node to the end Node
* @return int cost
*/
public int gethCost() {
return hCost;
}
/**
* Sets the hCost (heuristic cost) from the current Node to the end Node
* @param hCost int cost
*/
public void sethCost(int hCost) {
this.hCost = hCost;
}
/**
* Retrieves the fCost (full cost) for the Node
* @return int cost
*/
public int getfCost() {
return fCost;
}
/**
* Sets the fCost (full cost) for the Node
* @param fCost int cost
*/
public void setfCost(int fCost) {
this.fCost = fCost;
}
}

178
src/com/droidquest/pathfinder/Pathfinder.java Normal file
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@ -0,0 +1,178 @@
package com.droidquest.pathfinder;
import com.droidquest.Room;
import com.droidquest.items.Item;
import java.util.ArrayList;
import java.util.Collections;
/**
* Finds a path between two places on the map, using the A* algorithm
*/
public class Pathfinder {
private ArrayList<ArrayList<Node>> nodeList = new ArrayList<ArrayList<Node>>();
private ArrayList<Node> openList = new ArrayList<Node>();
private ArrayList<Node> closedList = new ArrayList<Node>();
/**
* Begin a search for a path. Returns an empty ArrayList if no path found.
* @param startX int starting X coordinate (not screen location)
* @param startY int starting Y coordinate (not screen location)
* @param endX int ending X coordinate (not screen location)
* @param endY int ending Y coordinate (not screen location)
* @param player Item player used to verify whether a Node is passable.
* @return ArrayList of Nodes representing the path, or empty list
*/
public ArrayList<Node> search(int startX, int startY, int endX, int endY, Item player) {
ArrayList<Node> results = new ArrayList<Node>();
if(startY < 0 || startY > nodeList.size() || startX < 0 || startX > nodeList.get(startY).size()) {
System.out.println("Starting node outside of room bounds!");
return results;
}
if(endY < 0 || endY > nodeList.size() || endX < 0 || endX > nodeList.get(endY).size()) {
System.out.println("Ending node outside of room bounds!");
return results;
}
if(!nodeList.get(startY).get(startX).getMaterial().Passable(player)) {
System.out.println("Starting node isn't passable!");
return results;
}
if(!nodeList.get(endY).get(endX).getMaterial().Passable(player)) {
System.out.println("Ending node isn't passable!");
return results;
}
Node endNode = nodeList.get(endY).get(endX);
// Add nodes adjacent to starting node
Node startNode = nodeList.get(startY).get(startX);
startNode.setgCost(0);
startNode.sethCost(manhattanDistance(startNode, endNode));
startNode.setfCost(startNode.gethCost());
startNode.parent = null;
openList.add(startNode);
findLowestCost(results, endNode, player);
return results;
}
private void findLowestCost(ArrayList<Node> results, Node endNode, Item player) {
while(openList.size() > 0) {
Node lowestCost = null;
for (Node node : openList) {
if (lowestCost == null || node.getfCost() < lowestCost.getfCost()) {
lowestCost = node;
}
}
openList.remove(lowestCost);
closedList.add(lowestCost);
if (lowestCost != null && lowestCost == endNode) {
Node pathNode = lowestCost;
while (pathNode.parent != null) {
results.add(new Node(pathNode.getX() * 28, pathNode.getY() * 32));
pathNode = pathNode.parent;
}
Collections.reverse(results);
return;
}
addSurroundingNodes(lowestCost, endNode, player);
}
System.out.println("Could not find any nodes to process, no path.");
}
private void addSurroundingNodes(Node parent, Node endNode, Item player) {
if(parent == null) {
return;
}
int x = parent.getX();
int y = parent.getY();
for(int deltaY = -1; deltaY <= 1; deltaY++) {
for(int deltaX = -1; deltaX <=1; deltaX++) {
if(deltaX != 0 || deltaY != 0) {
int checkX = x + deltaX;
int checkY = y + deltaY;
if(checkY >= 0 && checkY < nodeList.size() && checkX >= 0 && checkX < nodeList.get(checkY).size() && nodeList.get(checkY).get(checkX).getMaterial().Passable(player)) {
Node currentNode = nodeList.get(checkY).get(checkX);
if(closedList.contains(currentNode)) {
continue;
}
int diagonalCost = 0;
if(deltaX != 0 && deltaY != 0) {
// Diagonal, check to make sure other squares are passable
if(!nodeList.get(y).get(checkX).getMaterial().Passable(player) || !nodeList.get(checkY).get(x).getMaterial().Passable(player)) {
diagonalCost = 500; // don't make impassible, just really expensive
}
}
if(openList.contains(currentNode)) {
// Set gCost (10 for orthoginal, 14 for diagonal)
int newgCost = parent.getgCost() + ((deltaX == 0 || deltaY == 0) ? 10 : 14) + diagonalCost;
if(newgCost < currentNode.getgCost()) {
currentNode.parent = parent;
currentNode.setgCost(newgCost);
currentNode.setfCost(newgCost + manhattanDistance(currentNode, endNode));
}
}
else {
openList.add(currentNode);
currentNode.parent = parent;
// Set gCost (10 for orthoginal, 14 for diagonal)
currentNode.setgCost(parent.getgCost() + ((deltaX == 0 || deltaY == 0) ? 10 : 14) + diagonalCost);
currentNode.sethCost(manhattanDistance(currentNode, endNode));
currentNode.setfCost(currentNode.getgCost() + currentNode.gethCost());
}
}
}
}
}
}
/**
* Create a new Pathfinder object and initialize with a Room
* @param room Room for path-finding.
* @see com.droidquest.Room
*/
public Pathfinder(Room room) {
// Generate node array for room
generate(room);
}
/**
* Generate the Node list for a Room. Generally should use new Pathfinder(room) instead of this method
* @param room Room for path-finding
*/
public void generate(Room room) {
for(int y = 0; y < room.RoomArray.length;y++) {
nodeList.add(new ArrayList<Node>());
for(int x=0;x<room.RoomArray[y].length;x++) {
nodeList.get(y).add(new Node(x, y, Room.level.materialAt(x, y, room)));
}
}
}
// Use the Manhattan distance as the heuristic
private int manhattanDistance(Node current, Node end) {
return 10 * Math.abs(end.getX()-current.getX()) + Math.abs(end.getY()-current.getY());
}
}