1 files changed, 66 insertions, 0 deletions
diff --git a/engine/bulletpattern.cpp b/engine/bulletpattern.cpp
index b9a0bbd..fa43f59 100644
--- a/engine/bulletpattern.cpp
+++ b/engine/bulletpattern.cpp
@@ -42,3 +42,69 @@ void BulletPattern::draw() {
 	glDisableClientState(GL_VERTEX_ARRAY);
 	
 }
+
+BulletPattern1::BulletPattern1() {
+	num_bullets = steps = 0;
+	color_r = 0;
+	color_g = 1;
+	color_b = 0;
+	stride = sizeof(float);
+	bullets = new float[8*32*5];
+	
+	int k = 0;
+	for(int j = 0; j < 8; j++) {
+		for(float i = 0; i < M_PI; i += 0.1, k++) {
+			bullets[k*5] = 0.5 + sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) * 0.09;
+			bullets[k*5 + 1] = 0.8 + cosf(M_PI_2 + i) * 0.1;
+			bullets[k*5 + 2] = sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) / 1000;
+			bullets[k*5 + 3] = -0.002;
+			bullets[k*5 + 4] = j * 24 + i * 6;
+		}
+	}
+};
+
+void BulletPattern1::update() {
+	steps++;
+	while(num_bullets < 256 && (unsigned int)(bullets[num_bullets*5 + 4]) < steps) {
+		num_bullets++;
+	}
+	for(int i = 0; i < num_bullets; i++) {
+		bullets[i*5] += bullets[i*5 + 2];
+		bullets[i*5 + 1] += bullets[i*5 + 3];
+	}
+}
+
+BulletPattern2::BulletPattern2(float xpos, float ypos) {
+	num_bullets = 0;
+	color_r = 0.3;
+	color_g = 0.3;
+	color_b = 1.0;
+	stride = sizeof(float)*2;
+	bullets = new float[24*16*6];
+	
+	int k = 0;
+	for(int j = 0; j < 24; j++) {
+		for(float i = 0; i < 2 * M_PI; i += 0.4, k++) {
+			bullets[k*6] = xpos;
+			bullets[k*6+1] = ypos;
+			bullets[k*6+2] = cosf(i) / 40;
+			bullets[k*6+3] = sinf(i) / 40;
+			bullets[k*6+4] = j * 10;
+			bullets[k*6+5] = i;
+		}
+	}
+};
+
+void BulletPattern2::update() {
+	steps++;
+	while(num_bullets < 384 && (unsigned int)(bullets[num_bullets*6 + 4]) < steps) {
+		num_bullets++;
+	}
+	for(int i = 0; i < num_bullets; i++) {
+		float l = bullets[i*6 + 5] - log1pf((steps - bullets[i*6+4]));
+		bullets[i*6+2] = cosf(l) / 500;
+		bullets[i*6+3] = sinf(l) / 500;
+		bullets[i*6] += bullets[i*6 + 2];
+		bullets[i*6+1] += bullets[i*6 + 3];
+	}
+}
+\ No newline at end of file