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Rudimentary ghost capturing

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This commit is contained in:
Matt Low 2019-12-27 00:51:41 +04:00
parent 0bd4d7f042
commit 2a65084363
4 changed files with 73 additions and 23 deletions
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6
core/src/com/me/pacman/entity/Entity.java
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@ -18,7 +18,11 @@ public abstract class Entity {
}
public void render(SpriteBatch batch, int offsetX, int offsetY) {
batch.draw(getSprite(), (int) (pos.x * 8) + (offsetX - 8), (pos.y * 8) + (offsetY - 8));
TextureRegion texture = getSprite();
if (texture == null) {
return;
}
batch.draw(texture, (int) (pos.x * 8) + (offsetX - 8), (pos.y * 8) + (offsetY - 8));
}
public boolean onSameTile(Entity other) {

37
core/src/com/me/pacman/entity/Ghost.java
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@ -4,6 +4,7 @@ import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.math.Vector2;
import com.me.pacman.entity.ai.Behaviour;
import com.me.pacman.entity.ai.ReturnToBase;
import com.me.pacman.entity.ai.Target;
import com.me.pacman.level.LevelTile;
import com.me.pacman.state.PlayState;
@ -23,6 +24,8 @@ public class Ghost extends MovableEntity {
public Behaviour frightBehaviour;
public TextureRegion[][] sprite;
public boolean caught;
public boolean returned;
private int spriteIndex;
private int counter = 0;
@ -35,12 +38,20 @@ public class Ghost extends MovableEntity {
this.chaseBehaviour = chaseBehaviour;
this.scatterBehaviour = scatterBehaviour;
this.frightBehaviour = new FrightenedBehaviour(state);
this.caught = false;
this.returned = true;
sprite = state.getGame().assets.ghosts;
}
@Override
public TextureRegion getSprite() {
return sprite[2 + (counter % 2)][spriteIndex];
if (caught) {
return null;
} else if (state.frightTimer > 0 && !returned) {
return sprite[0][counter % 2];
} else {
return sprite[2 + (counter % 2)][spriteIndex];
}
}
@Override
@ -48,7 +59,8 @@ public class Ghost extends MovableEntity {
super.render(batch, offsetX, offsetY);
// draw eyes so the ghost can see
batch.draw(sprite[1][currDirection.ordinal()], (int) (pos.x * 8) + (offsetX - 8), (pos.y * 8) + (offsetY - 8));
if (state.frightTimer <= 0 || caught || returned)
batch.draw(sprite[1][currDirection.ordinal()], (int) (pos.x * 8) + (offsetX - 8), (pos.y * 8) + (offsetY - 8));
}
@Override
@ -73,6 +85,12 @@ public class Ghost extends MovableEntity {
return;
}
if (currentBehaviour instanceof ReturnToBase && target.targetReached(pos)) {
caught = false;
returned = true;
currentBehaviour = chaseBehaviour;
}
Vector2 ahead = new Vector2((int) pos.x, (int) pos.y).add(currDirection.getVector());
float shortest = Float.MAX_VALUE;
Direction nextDirection = null;
@ -96,21 +114,6 @@ public class Ghost extends MovableEntity {
setNextDirection(nextDirection);
}
private class ReturnToBase extends Behaviour {
final Target home = new Target(14, 16);
public ReturnToBase(PlayState state) {
super(state);
}
@Override
public Target getTarget() {
return home;
}
}
private class FrightenedBehaviour extends Behaviour {
private Target target;

19
core/src/com/me/pacman/entity/ai/ReturnToBase.java Normal file
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@ -0,0 +1,19 @@
package com.me.pacman.entity.ai;
import com.me.pacman.state.PlayState;
public class ReturnToBase extends Behaviour {
// final Target home = new Target(14, 16);
final Target home = new Target(14, 19);
public ReturnToBase(PlayState state) {
super(state);
}
@Override
public Target getTarget() {
return home;
}
}

34
core/src/com/me/pacman/state/PlayState.java
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@ -13,6 +13,7 @@ import com.me.pacman.entity.Ghost;
import com.me.pacman.entity.Pacman;
import com.me.pacman.entity.ai.BlinkyChaseBehaviour;
import com.me.pacman.entity.ai.BlinkyScatterBehaviour;
import com.me.pacman.entity.ai.ReturnToBase;
import com.me.pacman.level.Level;
import com.me.pacman.level.LevelTile;
@ -38,6 +39,7 @@ public class PlayState extends LevelState {
private float gameOverTimer;
private float newGameTimer;
private float deathTimer;
public float frightTimer;
private boolean pacmanCaught;
@ -131,7 +133,15 @@ public class PlayState extends LevelState {
}
}
dt = 1/60f;
if (frightTimer > 0) {
frightTimer -= dt;
if (frightTimer < 0) {
for (Ghost ghost : ghosts) {
if (ghost == null || ghost.caught) continue;
ghost.currentBehaviour = ghost.chaseBehaviour;
}
}
}
if (!pacmanCaught) {
for (Ghost ghost : ghosts) {
@ -141,8 +151,12 @@ public class PlayState extends LevelState {
ghost.update(dt);
if (ghost.onSameTile(pacman)) {
pacmanCaught();
return;
if (frightTimer > 0) {
if (!ghost.caught) ghostCaught(ghost);
} else {
pacmanCaught();
return;
}
}
}
} else if (deathTimer <= 0) {
@ -220,7 +234,7 @@ public class PlayState extends LevelState {
public void placeGhosts() {
ghosts[0] = new Ghost(this, 14, 19.5f, Direction.LEFT, 0, new BlinkyChaseBehaviour(this), new BlinkyScatterBehaviour(this));
ghosts[0].currentBehaviour = ghosts[0].scatterBehaviour;
ghosts[0].currentBehaviour = ghosts[0].chaseBehaviour;
}
public void startGame() {
@ -250,7 +264,12 @@ public class PlayState extends LevelState {
public void eatPowerPellet(float x, float y) {
pelletEaten(x, y);
// TODO: Enable ghost chase mode
for (Ghost ghost : ghosts) {
if (ghost == null || ghost.caught) continue;
ghost.currentBehaviour = ghost.frightBehaviour;
ghost.returned = false;
}
frightTimer = 6f;
score += 50;
}
@ -261,6 +280,11 @@ public class PlayState extends LevelState {
pacman.moving = false;
}
private void ghostCaught(Ghost ghost) {
ghost.caught = true;
ghost.returned = false;
ghost.currentBehaviour = new ReturnToBase(this);
}
@Override
public void dispose() {