Added flying bullets

core/src/de/samdev/cannonshooter/Textures.java

@@ -17,7 +17,7 @@ public final class Textures {
 		texbackground = new Texture("level_background.png");
 		
 		cannon_body = new Texture("cannon_body.png");
-		cannon_barrel = TextureHelper.load1DArray("cannon_barrel.png", 512, 256, 16);
+		cannon_barrel = TextureHelper.load1DArray("cannon_barrel.png", 512, 256, 32);
 		cannon_hearth = TextureHelper.load1DArray("cannon_hearth.png", 256, 256, 64);
 		cannon_bullet = new Texture("cannon_bullet.png");
 	}

core/src/de/samdev/cannonshooter/entities/Cannon.java

@@ -17,7 +17,7 @@ public class Cannon extends Entity {
 	private CannonBarrel barrel;
 	private CannonHearth hearth;
 	
-	public float power; // 1 = active | 0 = neutral
+	public float health; // 1 = active | 0 = neutral
 	
 	public Cannon(float x, float y, Team t) {
 		super(Textures.cannon_body, 2, 2);
@@ -26,7 +26,7 @@ public class Cannon extends Entity {
 		setZLayer(ZLayers.LAYER_CANNON_BODY);
 		
 		team = t;
-		power = (t.isNeutral) ? 0 : 1;
+		health = (t.isNeutral) ? 0 : 1;
 	}
 
 	@Override
@@ -44,12 +44,12 @@ public class Cannon extends Entity {
 		{
 			if (isMouseOverEntity() && Gdx.input.isKeyPressed(Keys.DOWN) && ! team.isNeutral)
 			{
-				power = Math.max(0, power - 0.01f);
+				health = Math.max(0, health - 0.01f);
 			}
 			
 			if (isMouseOverEntity() && Gdx.input.isKeyPressed(Keys.UP) && ! team.isNeutral)
 			{
-				power = Math.min(1, power + 0.01f);
+				health = Math.min(1, health + 0.01f);
 			}
 		}
 		
@@ -60,7 +60,11 @@ public class Cannon extends Entity {
 	}
 
 	public void setTeam(Team newteam) {
-		team = newteam;
+		if (team != newteam) {
+			team = newteam;
+			
+			barrel.onTeamChanged();
+		}
 	}
 
 	@Override

core/src/de/samdev/cannonshooter/entities/CannonBarrel.java

@@ -1,6 +1,7 @@
 package de.samdev.cannonshooter.entities;
 
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.badlogic.gdx.math.Vector2;
 
 import de.samdev.absgdx.framework.entities.Entity;
@@ -12,7 +13,8 @@ import de.samdev.cannonshooter.ZLayers;
 import de.samdev.cannonshooter.util.MathUtils;
 
 public class CannonBarrel extends Entity {
-	private static final float CHARGE_DURATION = 0.0001f;
+	private static final float CHARGE_SPEED = 0.00066f;
+	private static final float UNCHARGE_SPEED = 0.001f;
 	private static final float ROTATION_SPEED = 0.18f;
 	
 	private boolean dragging = false;
@@ -20,6 +22,9 @@ public class CannonBarrel extends Entity {
 	private float rotation = 0;
 	private float targetRotation = 0;
 	private float charge = 0;
+	
+	private boolean loaded = false;
+	private CannonBullet bullet = null;
 
 	private Cannon cannon;
 	
@@ -31,11 +36,60 @@ public class CannonBarrel extends Entity {
 		
 		setZLayer(ZLayers.LAYER_CANNON_BARREL);
 	}
+	
+	@Override
+	public TextureRegion getTexture() {
+		return Textures.cannon_barrel[31 - Math.min(31, (int)(charge * 32))];
+	}
 
 	@Override
 	public void beforeUpdate(float delta) {
 		if (dragging) updateDragging();
 		
+		updateRotation(delta);
+		updateCharge(delta);
+		updateBullet();
+	}
+
+	private void updateBullet() {
+		if (loaded) {
+			Vector2 v = new Vector2(1f - 0.2f + (120*charge)/128f, 0);
+			
+			v.rotate(rotation);
+			
+			bullet.setPosition(cannon.getCenterX() + v.x - bullet.getWidth()/2, cannon.getCenterY() + v.y - bullet.getHeight()/2);
+		}
+	}
+
+	private void updateCharge(float delta) {
+		if (cannon.health == 0 || cannon.health == 1) {
+			if (loaded)
+			{
+				charge += CHARGE_SPEED * delta * cannon.team.speedMultiplier;
+				
+				if (charge > 1) {
+					charge = 0;	
+				
+					bullet.shoot(rotation);
+					bullet = null;
+					loaded = false;
+				}
+			} else {
+				charge = 0;
+				
+				bullet = new CannonBullet(cannon, cannon.team);
+				owner.addEntity(bullet);
+				loaded = true;
+			}
+		} else {
+			charge -= UNCHARGE_SPEED * delta;
+
+			if (charge < 0)
+				charge = 0;
+		}
+	}
+
+	private void updateRotation(float delta) {
 		if (rotation != targetRotation) {
 			float sign = MathUtils.moduloSignum(rotation, targetRotation, 360, 1);
 			
@@ -66,6 +120,13 @@ public class CannonBarrel extends Entity {
 		dragging = true;
 	}
 
+	public void onTeamChanged() {
+		if (bullet != null) bullet.kill();
+		
+		bullet = null;
+		loaded = false;
+	}
+
 	@Override
 	public void onLayerAdd(GameLayer layer) {
 		// 

core/src/de/samdev/cannonshooter/entities/CannonBullet.java

@@ -1,6 +1,7 @@
 package de.samdev.cannonshooter.entities;
 
 import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.math.Rectangle;
 
 import de.samdev.absgdx.framework.entities.Entity;
 import de.samdev.absgdx.framework.entities.colliosiondetection.CollisionGeometryOwner;
@@ -8,21 +9,79 @@ import de.samdev.absgdx.framework.entities.colliosiondetection.geometries.Collis
 import de.samdev.absgdx.framework.layer.GameLayer;
 import de.samdev.cannonshooter.Textures;
 import de.samdev.cannonshooter.ZLayers;
+import de.samdev.cannonshooter.teams.Team;
 
 public class CannonBullet extends Entity {
-	private Cannon cannon;
+	private final static float RESIZE_SPEED = 0.005f;
 	
-	public CannonBullet(Cannon owner) {
+	private Cannon cannon;
+	private final Team team;
+	
+	private boolean inBarrel = true;
+	private float scale = 0.001f;
+	private boolean death = false;
+	private boolean birth = true;
+	
+	public CannonBullet(Cannon owner, Team t) {
 		super(Textures.cannon_bullet, 0.25f, 0.25f);
-		cannon = owner;
+		this.cannon = owner;
+		this.team = t;
 		
 		setPosition(cannon.getPositionX(), cannon.getPositionY());
 		
 		setZLayer(ZLayers.LAYER_CANNON_BULLET);
 		
-		setColorTint(Color.RED);
+		setColorTint(team.teamColor);
 	}
 
+	@Override
+	public void beforeUpdate(float delta) {
+		if (birth) {
+			scale += RESIZE_SPEED * delta;
+			if (scale >= 1) {
+				birth = false;
+				scale = 1;
+			}
+		}
+		
+		if (death) {
+			scale -= RESIZE_SPEED * delta;
+			if (scale <= 0) {
+				death = false;
+				scale = 0.0001f;
+				alive = false;
+			}
+		}
+		
+		// TODO OPTIMIZE
+		// TODO Add max lifetime (=> kill() )
+		if (! owner.getVisibleMapBox().overlaps(new Rectangle(getPositionX(), getPositionY(), getWidth(), getHeight()))) 
+		{
+			alive = false;
+		}
+	}
+	
+	public void shoot(float rotation) {
+		inBarrel = false;
+		
+		speed.set(0.001f, 0);
+		speed.rotate(rotation);
+	}
+
+	public void kill() {
+		death = true;
+	}
+	
+	@Override
+	public float getTextureScaleX() {
+		return scale;
+	}
+	
+	@Override
+	public float getTextureScaleY() {
+		return scale;
+	}
+	
 	@Override
 	public void onLayerAdd(GameLayer layer) {
 		// 
@@ -58,9 +117,4 @@ public class CannonBullet extends Entity {
 		return false;
 	}
 
-	@Override
-	public void beforeUpdate(float delta) {
-		//
-	}
-
 }

core/src/de/samdev/cannonshooter/entities/CannonHearth.java

@@ -38,20 +38,20 @@ public class CannonHearth extends Entity {
 
 		sbatch.setColor(cannon.team.teamColor);
 		
-		renderTexture(sbatch, Textures.cannon_hearth[(int)(cannon.power * 63)], 0, 0);
+		renderTexture(sbatch, Textures.cannon_hearth[(int)(cannon.health * 63)], 0, 0);
 
 		sbatch.setColor(Color.WHITE);
 	}
 
 	@Override
 	public void beforeUpdate(float delta) {
-		if (cannon.power < 1) {
-			if (rotation != 0 && cannon.power > 0) {
+		if (cannon.health < 1) {
+			if (rotation != 0 && cannon.health > 0) {
 				rotation = (rotation - delta * ROTATION_SPEED * cannon.team.speedMultiplier);
 				if (rotation < 0) rotation = 0;
 			}
 
-			if (cannon.power == 0){
+			if (cannon.health == 0){
 				if (! cannon.team.isNeutral) cannon.setTeam(level.team_neutral);
 
 				rotation = (rotation - delta * ROTATION_SPEED * cannon.team.speedMultiplier);

core/src/de/samdev/cannonshooter/level/StandardLevel.java

@@ -3,7 +3,6 @@ package de.samdev.cannonshooter.level;
 import java.util.ArrayList;
 import java.util.List;
 
-import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.math.Vector2;
 
 import de.samdev.absgdx.framework.AgdxGame;

core/src/de/samdev/cannonshooter/teams/Team.java

@@ -4,7 +4,7 @@ import com.badlogic.gdx.graphics.Color;
 
 public class Team {
 
-	public static final Color COL_NEUTRAL = new Color(127/255f, 127/255f, 127/255f, 1.0f);
+	public static final Color COL_NEUTRAL = new Color(208/255f, 208/255f, 208/255f, 1.0f);
 	public static final Color COL_P1 = new Color(38/255f, 127/255f, 0/255f, 1.0f);
 	public static final Color COL_P2 = new Color(255/255f, 0/255f, 0/255f, 1.0f);
 	public static final Color COL_P3 = new Color(0/255f, 0/255f, 255/255f, 1.0f);

data/CreateSpriteSheet_Barrel.linq

@@ -7,19 +7,19 @@ void Main()
 {
 	Image input = Image.FromFile(@"F:\Eigene Dateien\Dropbox\Programming\Java\workspace\Cannon Shooter\data\cannon_barrel_base.png");
 	
-	Image output = new Bitmap(input.Width * 4, input.Height * 4, PixelFormat.Format32bppArgb);
+	Image output = new Bitmap(input.Width * 4, input.Height * 8, PixelFormat.Format32bppArgb);
 
 	using (Graphics g = Graphics.FromImage(output))
 	{
 		for (int x = 0; x < 4; x++)
 		{
-			for (int y = 0; y < 4; y++)
+			for (int y = 0; y < 8; y++)
 			{
 				int idx = y*4 + x;
 
-				g.DrawImageUnscaledAndClipped(input, new Rectangle(input.Width * x, input.Height * y, input.Width - idx * 8 - 22, input.Height));
+				g.DrawImageUnscaledAndClipped(input, new Rectangle(input.Width * x, input.Height * y, input.Width - idx * 4 - 22, input.Height));
 				
-				g.DrawImage(input, new Rectangle(input.Width * (x+1) - idx * 8 - 22, input.Height * y, 22, input.Height), new Rectangle(input.Width - 22, 0, 22, input.Height), GraphicsUnit.Pixel);
+				g.DrawImage(input, new Rectangle(input.Width * (x+1) - idx * 4 - 22, input.Height * y, 22, input.Height), new Rectangle(input.Width - 22, 0, 22, input.Height), GraphicsUnit.Pixel);
 			}
 		}
 	}