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144 lines
3.3 KiB
144 lines
3.3 KiB
package net.tortuga.animations;
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import static org.lwjgl.opengl.GL11.*;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Random;
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import java.util.Set;
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import net.tortuga.App;
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import net.tortuga.textures.TextureManager;
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import net.tortuga.textures.Textures;
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import net.tortuga.util.RenderUtils;
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import com.porcupine.color.HSV;
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import com.porcupine.color.RGB;
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import com.porcupine.coord.Coord;
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import com.porcupine.coord.CoordI;
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import com.porcupine.coord.Rect;
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import com.porcupine.coord.Vec;
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import com.porcupine.math.Calc.Rad;
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public class RainAnimator implements IRenderer {
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private static final Vec FALL_VEC = new Vec(-2, 10);
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private static Random rand = new Random();
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private Set<Raindrop> raindrops = new HashSet<Raindrop>();
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private long nsStart;
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private class Raindrop {
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CoordI index = new CoordI(rand.nextInt(4), rand.nextInt(4));
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int width = 64;
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int appW = (int) (App.inst.getSize().x * 1.3);
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Coord pos = new Coord(-appW / 2 + rand.nextInt(appW), -20 - rand.nextInt(100));
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double size = (2 + rand.nextDouble() * 0.3) * 20;
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Rect rect = new Rect().grow_ip(0.5, 0.5);
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Rect txCoord = new Rect(index.x * width, index.y * width, (index.x + 1) * width, (index.y + 1) * width);
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RGB color = new HSV(0.53 + rand.nextDouble() * 0.06, 0.72, 0.7 + 0.1 * rand.nextDouble()).toRGB();
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double time = (System.nanoTime() - nsStart) / 1000000000D;
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double x = Math.sin(time / (30));
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Vec move = (Vec) FALL_VEC.scale(0.7 + rand.nextDouble() * 0.6).mul_ip(x, 1, 1);
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Vec[] translates = { Vec.random(0, 0), Vec.random(200, 400), Vec.random(200, 400), Vec.random(200, 400) };
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public void render(double delta)
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{
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pos.update(delta);
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if (pos.isFinished()) {
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pos.remember();
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pos.add_ip(move);
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pos.animate(0.02);
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}
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glPushMatrix();
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Coord coord = pos.getDelta().mul(1, -1, 1).add(0, App.inst.getSize().y);
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glTranslated(App.inst.getSize().x / 2 + coord.x, coord.y, coord.z);
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glRotated(Rad.toDeg(Math.atan(move.x / move.y)), 0, 0, 1);
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glScaled(size, size, size);
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RenderUtils.setColor(color);
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for (Vec v : translates) {
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glTranslated(v.x, v.y, 0);
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RenderUtils.quadTexturedAbs(rect, txCoord.div(256));
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}
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glPopMatrix();
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}
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}
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public RainAnimator() {
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nsStart = System.nanoTime();
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initFill();
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}
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private void initFill()
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{
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for (int i = 0; i < 250 + (App.isFullscreen() ? 100 : 0); i++) {
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Raindrop sf;
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raindrops.add(sf = new Raindrop());
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int appW = (int) App.inst.getSize().x;
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int appH = (int) App.inst.getSize().y;
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sf.pos.setTo(-appW / 2 + rand.nextInt(appW), rand.nextInt(appH));
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}
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}
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@Override
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public void onFullscreenChange()
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{
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raindrops.clear();
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initFill();
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}
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@Override
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public void updateGui()
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{
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Rect screen = new Rect(App.inst.getSize()).grow_ip(30, 30);
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Iterator<Raindrop> i = raindrops.iterator();
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while (i.hasNext()) {
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Raindrop sf = i.next();
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if (sf.pos.y > screen.getSize().y) {
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i.remove();
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}
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}
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}
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@Override
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public void render(double delta)
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{
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if (raindrops.size() < (App.isFullscreen() ? 350 : 250)) {
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raindrops.add(new Raindrop());
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}
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glPushAttrib(GL_ENABLE_BIT);
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glEnable(GL_TEXTURE_2D);
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RenderUtils.setColor(RGB.WHITE);
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TextureManager.bind(Textures.rain);
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for (Raindrop sf : raindrops) {
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sf.render(delta);
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}
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glPopAttrib();
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}
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}
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