1 files changed, 54 insertions, 0 deletions
diff --git a/ArcGenerator.cpp b/ArcGenerator.cpp
new file mode 100644
index 0000000..0f442b5
--- /dev/null
+++ b/ArcGenerator.cpp
@@ -0,0 +1,54 @@
+#include "ArcGenerator.h"
+
+#include <cmath>
+#include <memory>
+#include <utility>
+
+#include <raylib.h>
+
+#include "ConstantVelocity.h"
+
+
+ArcGenerator::ArcGenerator(std::shared_ptr<Vector2> position, ConstantVelocityBullet::Vector& bullets) :
+    m_position {position},
+    m_bullets {bullets},
+    m_delay {0},
+    m_interval {0.22f},
+    m_arc {2.f},
+    m_angle {0},
+    m_rotation {0},
+    m_radius {3},
+    m_last {false},
+    m_speed {80},
+    m_shift {10},
+    m_segments {30},
+    m_color {100, 100, 240, 255}
+{
+}
+
+
+void
+ArcGenerator::update(const float dt)
+{
+    if (!m_enabled)
+        return;
+    m_delay += dt;
+    m_angle += m_rotation * dt;
+    const int segments = m_last ? m_segments + 1 : m_segments;
+    if (m_delay > m_interval) {
+        m_delay -= m_interval;
+        for (float i = 0; i < segments; ++i) {
+            const float angle = (m_angle - m_arc / 2 + m_arc * i / m_segments) * M_PI;
+            const float cos = std::cos(angle);
+            const float sin = std::sin(angle);
+            ConstantVelocityBullet bullet;
+            bullet.color = m_color;
+            bullet.radius = m_radius;
+            bullet.velocity.x = cos * m_speed;
+            bullet.velocity.y = sin * m_speed;
+            bullet.position.x = m_position->x + cos * m_shift;
+            bullet.position.y = m_position->y + sin * m_shift;
+            m_bullets.push_back(std::move(bullet));
+        }
+    }
+}