From c40b10c9b1f216e75a153b37c7987268a1a66b1e Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Mon, 17 May 2010 12:57:09 +0200
Subject: Created BulletPattern-class.

---
 bulletpattern.cpp | 42 ++++++++++++++++++++++++++++++++++++++++++
 bulletpattern.h   | 14 ++++++++++++++
 main.cpp          | 24 ++++++++++++++----------
 3 files changed, 70 insertions(+), 10 deletions(-)
 create mode 100644 bulletpattern.cpp
 create mode 100644 bulletpattern.h

diff --git a/bulletpattern.cpp b/bulletpattern.cpp
new file mode 100644
index 0000000..1e8da5e
--- /dev/null
+++ b/bulletpattern.cpp
@@ -0,0 +1,42 @@
+#ifndef __APPLE__
+#include <GL/gl.h>
+#else
+#include <OpenGL/gl.h>
+#endif
+#include <cmath>
+#include "bulletpattern.h"
+
+BulletPattern::BulletPattern() {
+	num_bullets = 0;
+	bullets = new float[2048];
+	
+	int k = 0;
+	
+	for(float i = 0; i < M_PI * 16; i += 0.1) {
+		bullets[k++] = 50.0 + cosf(i) * 5;
+		bullets[k++] = 50.0 + sinf(i) * 5;
+		bullets[k++] = cosf(i) / 100.0;
+		bullets[k++] = sinf(i) / 100.0;
+	}
+}
+
+void BulletPattern::update(unsigned int time, unsigned int step) {
+	if(num_bullets < 503 && num_bullets * 4 < time) {
+		num_bullets += time / 4 - num_bullets;
+	}
+	for(int i = 0; i < num_bullets; i++) {
+		bullets[i*4] += bullets[i*4 + 2] * step;
+		bullets[i*4 + 1] += bullets[i*4 + 3] * step;
+	}
+}
+
+void BulletPattern::draw() {
+	glEnableClientState(GL_VERTEX_ARRAY);
+	
+	glVertexPointer(4, GL_FLOAT, 4 * sizeof(float), bullets);
+	
+	glDrawArrays(GL_POINTS, 0, num_bullets);
+	
+	glDisableClientState(GL_VERTEX_ARRAY);
+	
+}
\ No newline at end of file
diff --git a/bulletpattern.h b/bulletpattern.h
new file mode 100644
index 0000000..50d5844
--- /dev/null
+++ b/bulletpattern.h
@@ -0,0 +1,14 @@
+#ifndef BULLETPATTERN_H
+#define BULLETPATTERN_H
+
+class BulletPattern {
+	protected:
+		float* bullets;
+		int num_bullets;
+	public:
+		BulletPattern();
+		void update(unsigned int time, unsigned int step);
+		void draw();
+};
+
+#endif
diff --git a/main.cpp b/main.cpp
index 65a3b9e..7cba083 100644
--- a/main.cpp
+++ b/main.cpp
@@ -18,6 +18,7 @@
 #include "shader.h"
 #include "vector.h"
 #include "bullet.h"
+#include "bulletpattern.h"
 
 class BulletAdder {
 	public:
@@ -57,14 +58,7 @@ void create_pattern1(unsigned int base) {
 }
 
 void create_pattern2(unsigned int base) {
-	for(float i = 0; i < M_PI * 16; i += 0.1) {
-		bullets_queue.push(BulletAdder(base + (unsigned int)(i*40),
-					Bullet(
-						Vector3(50.0 + cosf(i) * 5,
-							50.0 + sinf(i) * 5, 0),
-						Vector3(cosf(i) / 100.0, sinf(i) / 100.0, 0),
-						5)));
-	}
+	
 }
 
 void create_pattern2_2(unsigned int base) {
@@ -131,6 +125,8 @@ int main(int, char**) {
 	glShadeModel(GL_SMOOTH);
 
 	create_bullets();
+	
+	BulletPattern* pattern = new BulletPattern();
 
 	TextureSDL texture1("foo.png");
 	TextureSDL texture2("foo4.png");
@@ -195,7 +191,9 @@ int main(int, char**) {
 				bullets_queue.pop();
 				bullets.push_back(bullet);
 			}
+			pattern->update(elapsed, step);
 		}
+		
 		gluLookAt(
 			5 * sinf(f), 1, 5 * cosf(f),
 			0, 0, 0,
@@ -228,6 +226,13 @@ int main(int, char**) {
 		glPointSize(16.0);
 		glEnable(GL_TEXTURE_2D);
 		glBindTexture(GL_TEXTURE_2D, texture2.tex());
+		
+		glColor4f(1, 0, 0, 1);
+		
+		pattern->draw();
+		
+		glColor4f(0, 1, 0, 1);
+		
 		glBegin(GL_POINTS);
 		for(it = bullets.begin(); it != bullets.end();) {
 			Bullet& b = (*it);
@@ -238,9 +243,8 @@ int main(int, char**) {
 				b.pos.z += b.direction.z * step;
 			}
 			
-			glColor4f(0, 1, 0, 1);
-			
 			glVertex4f(b.pos.x, b.pos.y, b.direction.x, b.direction.y);
+			
 			//glColor3f(b.color.r, b.color.g, b.color.b);
 			/*glTexCoord2f(0, 0);
 			glVertex3f(b.pos.x-1, b.pos.y-1, b.pos.z);
-- 
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