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
|
#include "StdAfx.h"
#include "mmgr.h"
#include "Game/Camera.h"
#include "Sim/Misc/GlobalConstants.h"
#include "GenericParticleProjectile.h"
#include "GlobalUnsynced.h"
#include "Rendering/GL/VertexArray.h"
#include "Rendering/Textures/ColorMap.h"
#include "SimpleParticleSystem.h"
#include "Sim/Projectiles/ProjectileHandler.h"
CR_BIND_DERIVED(CSimpleParticleSystem, CProjectile, );
CR_REG_METADATA(CSimpleParticleSystem,
(
CR_MEMBER_BEGINFLAG(CM_Config),
CR_MEMBER(emitVector),
CR_MEMBER(emitMul),
CR_MEMBER(gravity),
CR_MEMBER(colorMap),
CR_MEMBER(texture),
CR_MEMBER(airdrag),
CR_MEMBER(particleLife),
CR_MEMBER(particleLifeSpread),
CR_MEMBER(numParticles),
CR_MEMBER(particleSpeed),
CR_MEMBER(particleSpeedSpread),
CR_MEMBER(particleSize),
CR_MEMBER(particleSizeSpread),
CR_MEMBER(emitRot),
CR_MEMBER(emitRotSpread),
CR_MEMBER(directional),
CR_MEMBER(sizeGrowth),
CR_MEMBER(sizeMod),
CR_MEMBER_ENDFLAG(CM_Config),
CR_MEMBER(particles),
CR_RESERVED(16)
));
CR_BIND(CSimpleParticleSystem::Particle, );
CR_REG_METADATA_SUB(CSimpleParticleSystem, Particle,
(
CR_MEMBER(pos),
CR_MEMBER(life),
CR_MEMBER(speed),
CR_MEMBER(decayrate),
CR_MEMBER(size),
CR_MEMBER(sizeGrowth),
CR_MEMBER(sizeMod),
CR_RESERVED(8)
));
CSimpleParticleSystem::CSimpleParticleSystem(void)
: CProjectile()
{
checkCol=false;
useAirLos=true;
particles=0;
emitMul = float3(1,1,1);
}
CSimpleParticleSystem::~CSimpleParticleSystem(void)
{
if(particles)
delete [] particles;
}
void CSimpleParticleSystem::Draw()
{
inArray = true;
va->EnlargeArrays(numParticles * 4, 0, VA_SIZE_TC);
if (directional) {
for (int i = 0; i < numParticles; i++) {
const Particle* p = &particles[i];
if (p->life < 1.0f) {
float3 dif(p->pos - camera->pos);
dif.SafeANormalize();
float3 dir1 =
(p->speed.SqLength() > 0.001f)?
(dif.cross(p->speed)):
ZeroVector;
dir1.SafeANormalize();
const float3 dir2(dif.cross(dir1));
const float3 interPos = p->pos + p->speed * gu->timeOffset;
const float size = p->size;
unsigned char color[4];
colorMap->GetColor(color, p->life);
va->AddVertexQTC(interPos - dir1 * size - dir2 * size, texture->xstart, texture->ystart, color);
va->AddVertexQTC(interPos - dir1 * size + dir2 * size, texture->xend, texture->ystart, color);
va->AddVertexQTC(interPos + dir1 * size + dir2 * size, texture->xend, texture->yend, color);
va->AddVertexQTC(interPos + dir1 * size - dir2 * size, texture->xstart, texture->yend, color);
}
}
} else {
for (int i = 0; i < numParticles; i++) {
const Particle* p = &particles[i];
if (p->life < 1.0f) {
unsigned char color[4];
colorMap->GetColor(color, p->life);
const float3 interPos = p->pos + p->speed * gu->timeOffset;
const float3 cameraRight = camera->right * p->size;
const float3 cameraUp = camera->up * p->size;
va->AddVertexQTC(interPos - cameraRight - cameraUp, texture->xstart, texture->ystart, color);
va->AddVertexQTC(interPos + cameraRight - cameraUp, texture->xend, texture->ystart, color);
va->AddVertexQTC(interPos + cameraRight + cameraUp, texture->xend, texture->yend, color);
va->AddVertexQTC(interPos - cameraRight + cameraUp, texture->xstart, texture->yend, color);
}
}
}
}
void CSimpleParticleSystem::Update()
{
deleteMe = true;
for (int i = 0; i < numParticles; i++) {
if (particles[i].life < 1.0f) {
particles[i].pos += particles[i].speed;
particles[i].life += particles[i].decayrate;
particles[i].speed += gravity;
particles[i].speed *= airdrag;
particles[i].size = particles[i].size * sizeMod + sizeGrowth;
deleteMe = false;
}
}
}
void CSimpleParticleSystem::Init(const float3& explosionPos, CUnit *owner GML_PARG_C)
{
CProjectile::Init(explosionPos, owner GML_PARG_P);
particles = new Particle[numParticles];
float3 up = emitVector;
float3 right = up.cross(float3(up.y,up.z,-up.x));
float3 forward = up.cross(right);
for(int i=0; i<numParticles; i++)
{
float az = gu->usRandFloat()*2*PI;
float ay = (emitRot + emitRotSpread*gu->usRandFloat())*(PI/180.0);
particles[i].decayrate = 1.0f/(particleLife + gu->usRandFloat()*particleLifeSpread);
particles[i].life = 0;
particles[i].size = particleSize + gu->usRandFloat()*particleSizeSpread;
particles[i].pos = pos;
particles[i].speed = ((up*emitMul.y)*cos(ay)-((right*emitMul.x)*cos(az)-(forward*emitMul.z)*sin(az))*sin(ay)) * (particleSpeed + gu->usRandFloat()*particleSpeedSpread);
}
drawRadius = (particleSpeed+particleSpeedSpread)*(particleLife*particleLifeSpread);
}
CR_BIND_DERIVED(CSphereParticleSpawner, CSimpleParticleSystem, );
CR_REG_METADATA(CSphereParticleSpawner,
(
CR_MEMBER_BEGINFLAG(CM_Config),
CR_MEMBER_ENDFLAG(CM_Config)
));
CSphereParticleSpawner::CSphereParticleSpawner()
: CSimpleParticleSystem()
{
}
CSphereParticleSpawner::~CSphereParticleSpawner()
{
}
void CSphereParticleSpawner::Init(const float3& explosionPos, CUnit* owner GML_PARG_C)
{
float3 up = emitVector;
float3 right = up.cross(float3(up.y, up.z, -up.x));
float3 forward = up.cross(right);
for (int i = 0; i < numParticles; i++) {
float az = gu->usRandFloat() * 2 * PI;
float ay = (emitRot + emitRotSpread*gu->usRandFloat()) * (PI / 180.0);
float3 pspeed = ((up*emitMul.y)*cos(ay)-((right*emitMul.x)*cos(az)-(forward*emitMul.z)*sin(az))*sin(ay)) * (particleSpeed + gu->usRandFloat()*particleSpeedSpread);
CGenericParticleProjectile* particle = new CGenericParticleProjectile(pos + explosionPos, pspeed, owner);
particle->decayrate = 1.0f / (particleLife + gu->usRandFloat() * particleLifeSpread);
particle->life = 0;
particle->size = particleSize + gu->usRandFloat() * particleSizeSpread;
particle->texture = texture;
particle->colorMap = colorMap;
particle->airdrag = airdrag;
particle->sizeGrowth = sizeGrowth;
particle->sizeMod = sizeMod;
particle->gravity = gravity;
particle->directional = directional;
particle->SetRadius(particle->size + sizeGrowth * particleLife);
}
deleteMe = true;
}
|
