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#ifndef __APPLE__
#include <GL/gl.h>
#else
#include <OpenGL/gl.h>
#endif
#include <cmath>
#include "bulletpattern.h"
void BulletPattern::draw() {
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(4, GL_FLOAT, 4 * sizeof(float) + stride, bullets);
glDrawArrays(GL_POINTS, 0, num_bullets);
glDisableClientState(GL_VERTEX_ARRAY);
}
BulletPattern1::BulletPattern1(const Vector2& initpos) {
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] = initpos.x + sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) * 0.09;
bullets[k*5 + 1] = initpos.y + 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(const Vector2& initpos) {
num_bullets = steps = 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] = initpos.x;
bullets[k*6+1] = initpos.y;
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];
}
}
BulletPattern3::BulletPattern3(const Vector2& initpos) {
num_bullets = stride = steps = color_g = color_b = 0;
color_r = 1;
bullets = new float[2048];
int k = 0;
for(float i = 0; i < M_PI * 16; i += 0.1) {
bullets[k++] = initpos.x + cosf(i) * 0.05;
bullets[k++] = initpos.y + sinf(i) * 0.05;
bullets[k++] = cosf(i) / 1000.0;
bullets[k++] = sinf(i) / 1000.0;
}
}
void BulletPattern3::update() {
steps++;
while(num_bullets < 503 && num_bullets / 2 < steps) {
num_bullets++;
}
for(int i = 0; i < num_bullets; i++) {
bullets[i*4] += bullets[i*4 + 2];
bullets[i*4 + 1] += bullets[i*4 + 3];
}
}
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