Added bullet spread and Heavy Machine Gun.

resources/yaml/assault_rifle.yaml

@@ -8,3 +8,4 @@ reload_time: 2000
 automatic: true
 magazine_size: 30
 max_total_ammo: 270
+spread: 2.0

resources/yaml/hmg.yaml

@@ -0,0 +1,11 @@
+name: Machine Gun
+
+bullet: bullet.yaml
+projectile_speed: 1000
+damage: 20
+fire_interval: 100
+reload_time: 5000
+automatic: true
+magazine_size: 60
+max_total_ammo: 400
+spread: 5.0

resources/yaml/player.yaml

@@ -5,5 +5,5 @@ health: 100
 speed: 100
 radius: 25
 size: [50, 50]
-weapon: shotgun.yaml
+weapon: hmg.yaml
 faction: 0

source/items/Weapon.cpp

@@ -27,9 +27,10 @@ Weapon::Weapon(World& world, Character& holder, const Yaml& config) :
 		mMagazineAmmo(mMagazineSize),
 		mMaxTotalAmmo(config.get("max_total_ammo", 0)),
 		mTotalAmmo(mMaxTotalAmmo),
-		mPellets(config.get("pellets", 1)),
+		mPellets(config.get("pellets", 0)),
 		mPelletSpread(config.get("pellet_spread", 0.0f)),
-		mReloadSingle(config.get("reload_single", false)) {
+		mReloadSingle(config.get("reload_single", false)),
+		mSpread(config.get("spread", 0.0f)) {
 }
 
 /**
@@ -97,7 +98,8 @@ Weapon::fire() {
 	mMagazineAmmo--;
 
 
-	if (mPellets == 0) insertProjectile(0.0f);
+	if (mPellets == 0)
+		insertProjectile(0.0f);
 	else
 		for (int i = - mPellets / 2; i < mPellets / 2; i++) {
 			insertProjectile(i * mPelletSpread);
@@ -132,7 +134,14 @@ Weapon::insertProjectile(float angle) {
 	// Minus to account for positive y-axis going downwards in SFML.
 	sf::Vector2f offset(0, - mHolder.getRadius());
 			thor::rotate(offset, thor::polarAngle(mHolder.getDirection()));
+
+	std::uniform_real_distribution<float> distribution(- mSpread, mSpread);
+	angle += distribution(mGenerator);
+
+	//float random = ((float) rand()) / (float) RAND_MAX;
+    //angle += random * 2 * mSpread - mSpread;
 	sf::Vector2f direction(thor::rotatedVector(mHolder.getDirection(), angle));
+
 	std::shared_ptr<Sprite> projectile(new Bullet(mHolder.getPosition() + offset,
 			mHolder, direction, mProjectile, mProjectileSpeed,
 			mDamage));

source/items/Weapon.h

@@ -9,6 +9,7 @@
 #define DG_WEAPON_H_
 
 #include <string>
+#include <random>
 
 #include <SFML/System.hpp>
 
@@ -21,11 +22,6 @@ class World;
 class Particle;
 class Yaml;
 
-/**
- * Loading mechanism:
- * 	- pass enum value and load mapped xml
- * 	- pass xml filename
- */
 class Weapon {
 public:
 	explicit Weapon(World& world, Character& holder, const Yaml& config);
@@ -61,6 +57,8 @@ private:
 	const int mPellets;
 	const float mPelletSpread;
 	const bool mReloadSingle;
+	const float mSpread;
+	std::default_random_engine mGenerator;
 
 };