Added health, zombies can die, and more blood and gore.

src/shootergame/entity/Entity.java

@@ -17,6 +17,8 @@ public class Entity implements ITransparentObject
 	public Vec2d pos;
 	public double angle;
 	public boolean opaqueTile = true;
+	public double hitbox = 1;
+	public boolean isSolid = false;
 	
 	public Entity(Vec2d pos, double angle)
 	{

src/shootergame/entity/EntityAlive.java

@@ -0,0 +1,12 @@
+package shootergame.entity;
+
+public interface EntityAlive
+{
+	public void addHealth(double amount);
+	public void removeHealth(double amount);
+	public double getHealth();
+	public void resetHealth();
+	public void clearHealth();
+	public double maxHealth();
+	public void setHealth(double health);
+}

src/shootergame/entity/EntityBlood.java

@@ -0,0 +1,68 @@
+package shootergame.entity;
+
+import java.util.Random;
+
+import shootergame.display.Camera;
+import shootergame.util.gl.GlHelpers;
+import shootergame.util.math.random.RandomHelpers;
+import shootergame.util.math.vec.Vec2d;
+import shootergame.world.chunk.Chunk;
+import shootergame.world.layer.Layer;
+
+public class EntityBlood extends EntityParticle
+{
+	private double r_color;
+	private double speed = 0.1;
+	private double time = 1000;
+	private double height = 0;
+	private double height_velocity = 0;
+	
+	public EntityBlood(Random rand, Vec2d pos, double angle) {
+		super(rand.nextDouble() / 5, 0);
+		
+		this.pos = pos;
+		this.angle = angle + RandomHelpers.randrange(rand, -100, 100);
+		this.speed = rand.nextDouble() / 10;
+		this.height = rand.nextDouble();
+		this.height_velocity = rand.nextDouble() / 10;
+		this.pos.x += 0.5;
+		this.pos.y += 0.5;
+		r_color = RandomHelpers.randrange(rand, 200, 800) / 1000.0;
+	}
+	
+	@Override
+	public void tick(Chunk chunk, Layer layer)
+	{
+		// Call super
+		super.tick(chunk, layer);
+		
+		// Move in the velocity and remove some of it
+		moveBackward(speed);
+		height += height_velocity;
+		speed /= 1.05;
+		height_velocity -= 0.001;
+		if(height < 0) {
+			height = 0;
+			height_velocity = 0;
+		}
+		
+		// Remove some time
+		time -= 1;
+		
+		// Should this particle too old; destroy it
+		if(time < 0) chunk.killEntity(this);
+	}
+	
+	@Override
+	public void render(Vec2d pos, Camera camera)
+	{
+		// Set some settings
+		GlHelpers.pushMatrix();
+		GlHelpers.color3(r_color, 0, 0);
+		GlHelpers.translate(0, 0, height);
+		
+		// Call super
+		super.render(pos, camera);
+		GlHelpers.popMatrix();
+	}
+}

src/shootergame/entity/EntityBullet.java

@@ -1,20 +1,28 @@
 package shootergame.entity;
 
+import java.util.Random;
+
 import shootergame.display.Camera;
-import shootergame.init.Textures;
 import shootergame.util.gl.GlHelpers;
+import shootergame.util.math.random.RandomHelpers;
 import shootergame.util.math.vec.Vec2d;
 import shootergame.world.chunk.Chunk;
 import shootergame.world.layer.Layer;
 
-public class EntityBullet extends Entity
+public class EntityBullet extends EntityParticle
 {
 	private int time = 0;
+	private Random rand;
+	private Entity parent;
 	
-	public EntityBullet()
-	{
-		// Set some settings
-		this.opaqueTile = false;
+	public EntityBullet(Random rand, Vec2d pos, Entity parent, double angle) {
+		super(0.2, 0.4);
+		
+		// Store some specified values
+		this.rand = rand;
+		this.pos = pos;
+		this.angle = angle;
+		this.parent = parent;
 	}
 	
 	@Override
@@ -27,11 +35,21 @@ public class EntityBullet extends Entity
 		// Loop over the nearby entities
 		for(Entity e : layer.getNearbyEntities(pos, 0.5))
 		{
-			// Is this a zombie
-			if(e instanceof EntityZombie)
+			// Is this entity alive and not the parent
+			if(e instanceof EntityAlive && e != parent)
 			{
-				//System.out.println("Found Zombie");
+				// Get the alive entity
+				EntityAlive ea = (EntityAlive)e;
 				
+				// Spawn some blood particles
+				for(int i=0;i<20;i++) {
+					chunk.spawnEntity(new EntityBlood(rand, pos.copy(), angle));
+				}
+				
+				// Harm the entity
+				ea.removeHealth(10);
+				
+				// Kill the bullet
 				chunk.killEntity(this);
 				return;
 			}
@@ -48,36 +66,10 @@ public class EntityBullet extends Entity
 	@Override
 	public void render(Vec2d pos, Camera camera)
 	{
+		// Set the colour
+		GlHelpers.color3(0.6, 0.6, 0);
+		
 		// Call super
 		super.render(pos, camera);
-		
-		// Push the matrix, disable textures, colour, and translate the bullet
-		GlHelpers.pushMatrix();
-		GlHelpers.color3(0.8, 0.8, 0);
-		GlHelpers.disableTexture2d();
-		
-		// Get the angle between the camera and the bullet
-		double angle_r = camera.angle.x;
-		
-		// Make the bullet upright
-		GlHelpers.translate(0.1, 0, 0);
-		GlHelpers.translate(pos.x, pos.y, 0.4);
-		GlHelpers.rotate(-angle_r, 0, 0, 1);
-		GlHelpers.translate(-0.1, 0, 0);
-		
-		// Draw the bullet
-		GlHelpers.begin();
-		{
-			GlHelpers.vertex3(0.0f, 0, 0.0f);
-			GlHelpers.vertex3(0.2f, 0, 0.0f);
-			GlHelpers.vertex3(0.2f, 0, 0.2f);
-			GlHelpers.vertex3(0.0f, 0, 0.2f);
-		}
-		GlHelpers.end();
-		
-		// Pop the matrix, remove the colour, and enable textures
-		GlHelpers.enableTexture2d();
-		GlHelpers.color3(1, 1, 1);
-		GlHelpers.popMatrix();
 	}
 }

src/shootergame/entity/EntityParticle.java

@@ -0,0 +1,54 @@
+package shootergame.entity;
+
+import shootergame.display.Camera;
+import shootergame.util.gl.GlHelpers;
+import shootergame.util.math.vec.Vec2d;
+
+public class EntityParticle extends Entity
+{
+	private double height;
+	private double size;
+	
+	public EntityParticle(double size, double height)
+	{
+		// Set some settings
+		this.opaqueTile = false;
+		this.height = height;
+		this.size = size;
+	}
+	
+	@Override
+	public void render(Vec2d pos, Camera camera)
+	{
+		// Call super
+		super.render(pos, camera);
+		
+		// Push the matrix, disable textures, colour, and translate the bullet
+		GlHelpers.pushMatrix();
+		GlHelpers.disableTexture2d();
+		
+		// Get the angle between the camera and the bullet
+		double angle_r = camera.angle.x;
+		
+		// Make the bullet upright
+		GlHelpers.translate(size/2, 0, 0);
+		GlHelpers.translate(pos.x, pos.y, height);
+		GlHelpers.rotate(-angle_r, 0, 0, 1);
+		GlHelpers.translate(-size/2, 0, 0);
+		
+		// Draw the bullet
+		GlHelpers.begin();
+		{
+			GlHelpers.vertex3(0.0f, 0, 0.0f);
+			GlHelpers.vertex3(size, 0, 0.0f);
+			GlHelpers.vertex3(size, 0, size);
+			GlHelpers.vertex3(0.0f, 0, size);
+		}
+		GlHelpers.end();
+		
+		// Pop the matrix, remove the colour, and enable textures
+		GlHelpers.enableTexture2d();
+		GlHelpers.color3(1, 1, 1);
+		GlHelpers.popMatrix();
+	}
+}

src/shootergame/entity/EntityZombie.java

@@ -3,24 +3,28 @@ package shootergame.entity;
 import java.util.Random;
 
 import shootergame.Main;
-import shootergame.display.Camera;
 import shootergame.init.Textures;
 import shootergame.util.math.random.OpenSimplexNoise;
-import shootergame.util.math.vec.Vec2d;
 import shootergame.world.chunk.Chunk;
 import shootergame.world.layer.Layer;
 
-public class EntityZombie extends EntityVertical
+public class EntityZombie extends EntityVertical implements EntityAlive
 {
 	private Random rand;
 	private OpenSimplexNoise noise;
 	private double time;
+	private double health_max = 100;
+	private double health = health_max;
 
 	public EntityZombie() {
 		super(Textures.ENTITY_ZOMBIE, 1);
 		rand = new Random();
 		noise = new OpenSimplexNoise(rand.nextLong());
 		time = 0;
+		
+		// Set some settings
+		hitbox = 0.5;
+		isSolid = true;
 	}
 	
 	@Override
@@ -35,5 +39,40 @@ public class EntityZombie extends EntityVertical
 		
 		this.moveForward(0.05);
 	}
+	
+	@Override
+	public void addHealth(double amount) {
+		health += amount;
+	}
+
+	@Override
+	public void removeHealth(double amount) {
+		health -= amount;
+	}
+
+	@Override
+	public double getHealth() {
+		return health;
+	}
+
+	@Override
+	public void resetHealth() {
+		health = health_max;
+	}
+
+	@Override
+	public void clearHealth() {
+		health = 0;
+	}
+
+	@Override
+	public double maxHealth() {
+		return health_max;
+	}
+
+	@Override
+	public void setHealth(double health) {
+		this.health = health;
+	}
 
 }

src/shootergame/entity/player/EntityPlayer.java

@@ -1,8 +1,11 @@
 package shootergame.entity.player;
 
+import java.util.Random;
+
 import shootergame.Main;
 import shootergame.display.Camera;
 import shootergame.entity.Entity;
+import shootergame.entity.EntityAlive;
 import shootergame.entity.EntityBullet;
 import shootergame.entity.EntityVertical;
 import shootergame.init.Textures;
@@ -13,7 +16,7 @@ import shootergame.util.math.vec.Vec2i;
 import shootergame.world.chunk.Chunk;
 import shootergame.world.layer.Layer;
 
-public class EntityPlayer extends EntityVertical
+public class EntityPlayer extends EntityVertical implements EntityAlive
 {
 	public boolean MOVE_FORWARD = false;
 	public boolean MOVE_BACKWARD = false;
@@ -22,9 +25,17 @@ public class EntityPlayer extends EntityVertical
 	public boolean moving = false;
 	
 	private int bullet_frequency = 0;
+	private Random rand;
+	private double health_max = 100;
+	private double health = health_max;
 	
 	public EntityPlayer() {
 		this.angle = 45;
+		rand = new Random();
+		
+		// Set some settings
+		hitbox = 0.5;
+		isSolid = true;
 	}
 	
 	@Override
@@ -75,10 +86,42 @@ public class EntityPlayer extends EntityVertical
 		if(bullet_frequency == 0)
 		{
 			// Summon bullets at this angle relative to the player
-			Entity bullet = new EntityBullet();
-			bullet.angle = angle + this.angle;
-			bullet.pos = pos.copy();
-			Main.world.getLayer().spawnEntity(bullet);
+			Main.world.getLayer().spawnEntity(new EntityBullet(rand, pos.copy(), this, angle + this.angle));
 		}
 	}
+
+	@Override
+	public void addHealth(double amount) {
+		health += amount;
+	}
+
+	@Override
+	public void removeHealth(double amount) {
+		health -= amount;
+	}
+
+	@Override
+	public double getHealth() {
+		return health;
+	}
+
+	@Override
+	public void resetHealth() {
+		health = health_max;
+	}
+
+	@Override
+	public void clearHealth() {
+		health = 0;
+	}
+
+	@Override
+	public double maxHealth() {
+		return health_max;
+	}
+
+	@Override
+	public void setHealth(double health) {
+		this.health = health;
+	}
 }

src/shootergame/world/chunk/Chunk.java

@@ -5,6 +5,7 @@ import java.util.Random;
 
 import shootergame.display.Camera;
 import shootergame.entity.Entity;
+import shootergame.entity.EntityAlive;
 import shootergame.init.Tiles;
 import shootergame.tiles.Tile;
 import shootergame.util.math.MathHelpers;
@@ -78,7 +79,7 @@ public class Chunk
 		}
 	}
 	
-	public void moveEntities()
+	public void checkEntities()
 	{
 		// Loop over every entity
 		for(int i=0;i<entities.size();i++)
@@ -86,6 +87,19 @@ public class Chunk
 			// Get the entitiy
 			Entity e = entities.get(i);
 			
+			// is this entity alive
+			if(e instanceof EntityAlive)
+			{
+				// Get the alive entity
+				EntityAlive ea = (EntityAlive)e;
+				
+				// Kill the entity if it should be dead and continue to the next loop iteration
+				if(ea.getHealth() < 0) {
+					entities.remove(i);
+					continue;
+				}
+			}
+			
 			// Has the entity left the chunk
 			int cx = c_pos.x * CHUNK_SIZE.mx;
 			int cy = c_pos.y * CHUNK_SIZE.my;

src/shootergame/world/layer/Layer.java

@@ -57,7 +57,7 @@ public class Layer
 		
 		// Move every entitiy in every loaded chunk
 		for(Map2DElement<Chunk> e : chunks) {
-			e.o.moveEntities();
+			e.o.checkEntities();
 		}
 	}
 	

src/shootergame/world/layer/layergen/LayerGenEarth.java

@@ -36,11 +36,6 @@ public class LayerGenEarth extends LayerGen
 				int cx = x + c_pos.x * Chunk.CHUNK_SIZE.mx;
 				int cy = y + c_pos.y * Chunk.CHUNK_SIZE.my;
 				
-				Entity e = new EntityBullet();
-				e.pos.x = cx;
-				e.pos.y = cy;
-				layer.spawnEntity(e);
-				
 				// Get the noise value and the position vector
 				double noise_n = (noisegen_n.eval(cx/10.0, cy/10.0) + 1) * 50;
 				Vec2i pos = new Vec2i(x, y);