1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
| package Game;
import de.matthiasmann.twl.utils.PNGDecoder;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.lwjgl.opengl.GL11;
import static org.lwjgl.opengl.GL11.*;
public class Particle_Generator {
int particleCount = 0;
int generationSpeed = 0;
int generationNow = 0;
Particle[] particles;
private float x = 0;
private float y = 0;
private int life = 0;
private float r = 0;
private float g = 0;
private float b = 0;
private float a = 0;
private boolean emitter = false;
private float speed = 0;
private float angle = 0;
private float range = 0;
ByteBuffer bufParticle;
PNGDecoder decParticle;
private class Particle {
private Particle_Generator daddy = null;
private float x = 0.0f;
private float y = 0.0f;
private float speed = 1.001f;
private float r = 0;
private float g = 0;
private float b = 0;
private float a = 1;
private float personalAngle = 0;
private float lifespan;
private float angleDiff = 0;
private boolean dead = false;
public Particle(Particle_Generator generator) {
daddy = generator;
r = (float) (daddy.r + (Math.random()/10));
g = (float) (daddy.g + (Math.random()/10));
b = (float) (daddy.b + (Math.random()/10));
a = (float) (daddy.a + (Math.random()/10));
x = daddy.x;
y = daddy.y;
lifespan = daddy.life;
speed = (float) (daddy.speed + (Math.random()*daddy.speed/10));
personalAngle = daddy.angle;
float rangecalc = (float) Math.random();
boolean isAboveZero = false;
if(rangecalc>.5) {isAboveZero = true;}
rangecalc = (float) Math.random();
if (isAboveZero==true) {angleDiff = daddy.range*rangecalc;}
else {angleDiff = -range*rangecalc;}
personalAngle = personalAngle + angleDiff;
}
private void update() {
if(Math.random()>.5){
x += 1*Math.random();
}
else{
x -= 1*Math.random();
}
if(Math.random()>.5){
y += 1*Math.random();
}
else{
y -= 1*Math.random();
}
x -= Math.sin(personalAngle) * speed;
y += Math.cos(personalAngle) * speed;
draw();
weaken();
}
private void draw() {
glColor4d(r,g,b,a);
glTexCoord2d(1,0); glVertex2d(-10, -10);
glTexCoord2d(1,1); glVertex2d(-10, 10);
glTexCoord2d(0,1); glVertex2d(10, 10);
glTexCoord2d(0,0); glVertex2d(10, -10);
}
private void move(float x, float y){
this.x=x;
this.y=y;
}
private void weaken(){
lifespan--;
if (lifespan<0) {dead=true;}
}
}
public Particle_Generator(int size, int generate, int life, float r, float g, float b, float a, boolean emit, float x, float y, float speed, float angle, int range) {
if(size<=0) {
return;
}
particleCount = size;
generationSpeed = generate;
this.r = r;
this.g = g;
this.b = b;
this.a = a;
this.x = x;
this.y = y;
this.life = life;
this.speed = speed;
this.angle = angle;
this.range = (float) (range*Math.PI/180);
emitter = emit;
generate();
particleTexture();
}
private void generate() {
particles = new Particle[particleCount];
for(int i = 0; i < particleCount; i++) {particles[i] = new Particle(this);}
for(int i = 0; i < particleCount; i++) {particles[i].lifespan = 1;}
}
public void update(boolean produce) {
for(int i = 0; i < particleCount; i++) {
if(particles[i] != null){
if(particles[i].dead==true){
particles[i] = null;
}
else {particles[i].update();}
}
else{
if (produce==true) {
particles[i] = null;
if(emitter){
if (generationSpeed>generationNow) {
particles[i] = new Particle(this);
generationNow++;
}
}
}
}
}
generationNow = 0;
}
public void draw() {
for(int i = 0; i < particleCount; i++) {
if(particles[i] != null){
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, decParticle.getWidth(), decParticle.getHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, bufParticle);
glBindTexture(GL_ADD, GL_LOAD);
glBindTexture(GL_TEXTURE_2D,1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glPushMatrix();
glTranslated(particles[i].x+Core.SCREEN_X/2, particles[i].y+Core.SCREEN_Y/2, 0);
glBegin(GL_QUADS);
particles[i].draw();
glEnd();
glPopMatrix();
}
}
}
public void move(float x, float y){
this.x = x;
this.y = y;
}
public void killme(){
for(int i = 0; i < particleCount; i++) {
if (particles[i]!=null) {
particles[i] = null;
}
}
}
public void setspeed(float Speed){
this.speed = Speed;
}
public void setAngle(float Angle){
this.angle=Angle;
}
public void setRange(float Range){
this.range=(float) (Range*Math.PI/180);
}
public void particleTexture() {
InputStream in = null;
try {
in = new FileInputStream(YOUR_PARTICLE_TEXTURE);
} catch (FileNotFoundException ex) {
Logger.getLogger(Models.class.getName()).log(Level.SEVERE, null, ex);
}
try {
decParticle = new PNGDecoder(in);
bufParticle = ByteBuffer.allocateDirect(4*decParticle.getWidth()*decParticle.getHeight());
decParticle.decode(bufParticle, decParticle.getWidth()*4, PNGDecoder.Format.RGBA);
bufParticle.flip();
} catch (IOException ex) {
Logger.getLogger(Models.class.getName()).log(Level.SEVERE, null, ex);
}
try {
in.close();
} catch (IOException ex) {
Logger.getLogger(Models.class.getName()).log(Level.SEVERE, null, ex);
}
}
} |
