1 /*
2 Copyright (C) 2004-2011 Parallel Realities
3 Copyright (C) 2011-2015 Perpendicular Dimensions
4
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13
14 See the GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19
20 */
21
22 #include "particles.h"
23
addWindParticles()24 void addWindParticles()
25 {
26 int c;
27 float x, y, dx, dy;
28
29
30 for (int i = 0 ; i < 50 ; i++)
31 {
32 if (player.x < 320)
33 {
34 x = Math::rrand(-100, 700);
35 }
36 else
37 {
38 x = player.x + Math::rrand(-450, 450);
39 }
40
41 c = Math::prand() % 4;
42 switch (c)
43 {
44 case 0: c = graphics.white; break;
45 case 1: c = graphics.lightGrey; break;
46 case 2: c = graphics.grey; break;
47 case 3: c = graphics.darkGrey; break;
48 }
49
50 y = player.y + Math::rrand(-450, 450);
51 dx = Math::rrand(1, 100) * map.windPower;
52 dx /= 100;
53 dy = Math::rrand(1, 10); dy /= 10;
54 map.addParticle(x, y, dx, dy, 120, c, NULL, PAR_WEIGHTLESS);
55 }
56 }
57
addColorParticles(float x,float y,int amount,int color)58 void addColorParticles(float x, float y, int amount, int color)
59 {
60 int c = color;
61 float dx, dy;
62
63 for (int i = 0 ; i < amount ; i++)
64 {
65 if (color == -1)
66 c = Math::prand() % 5;
67
68 switch (c)
69 {
70 case 0: c = graphics.white; break;
71 case 1: c = graphics.grey; break;
72 case 2: c = graphics.blue; break;
73 case 3: c = graphics.cyan; break;
74 case 4: c = graphics.red; break;
75 }
76
77 dx = Math::rrand(-30, 30); dx /= 30;
78 dy = Math::rrand(-30, 30); dy /= 30;
79 map.addParticle(x, y, dx, dy, Math::rrand(5, 30), c, NULL, 0);
80 }
81 }
82
addFireTrailParticle(float x,float y)83 void addFireTrailParticle(float x, float y)
84 {
85 map.addParticle(x, y, 0, 0, 12, graphics.red, graphics.getSprite("SmallExplosion", true), PAR_WEIGHTLESS);
86 }
87
addFireParticles(float x,float y,int amount)88 void addFireParticles(float x, float y, int amount)
89 {
90 for (int i = 0 ; i < amount ; i++)
91 {
92 map.addParticle(x + Math::rrand(-2, 2), y + Math::rrand(-2, 2), 0, 1, Math::rrand(5, 30), graphics.red, graphics.getSprite("Explosion", true), PAR_COLLIDES);
93 }
94 }
95
addBubble(float x,float y)96 void addBubble(float x, float y)
97 {
98 if ((Math::prand() % 50) == 0)
99 {
100 map.addParticle(x + Math::prand() % BRICKSIZE, y + 19, 0, Math::rrand(-3, -1), Math::rrand(30, 90), graphics.red, graphics.getSprite("Bubble", true), PAR_COLLIDES | PAR_WEIGHTLESS | PAR_LIQUID);
101 }
102 }
103
throwStalagParticles(float x,float y)104 void throwStalagParticles(float x, float y)
105 {
106 Sprite *stalagPiece = graphics.getSprite("StalagPiece", true);
107
108 int amount = Math::rrand(3, 6);
109
110 for (int i = 0 ; i < amount ; i++)
111 {
112 map.addParticle(x, y, Math::rrand(-2, 2), Math::rrand(-3, -1), Math::rrand(5, 30), graphics.red, stalagPiece, 0);
113 }
114 }
115
throwBrickParticles(float x,float y)116 void throwBrickParticles(float x, float y)
117 {
118 int amount = Math::rrand(4, 8);
119
120 Sprite *wallPiece = graphics.getSprite("WallPiece", true);
121
122 for (int i = 0 ; i < amount ; i++)
123 {
124 map.addParticle(x, y, Math::rrand(-2, 2), Math::rrand(-4, -1), Math::rrand(5, 30), graphics.red, wallPiece, 0);
125 }
126 }
127
addTeleportParticles(float x,float y,int amount,int soundToPlay)128 void addTeleportParticles(float x, float y, int amount, int soundToPlay)
129 {
130 Sprite *teleportStar = graphics.getSprite("TeleportStar", true);
131 float dx, dy;
132
133 for (int i = 0 ; i < amount ; i++)
134 {
135 dx = Math::rrand(-30, 30); dx /= 20;
136 dy = Math::rrand(-30, 30); dy /= 20;
137 map.addParticle(x, y, dx, dy, Math::rrand(30, 60), graphics.red, teleportStar, PAR_WEIGHTLESS);
138 }
139
140 if (soundToPlay != -1)
141 {
142 audio.playSound(soundToPlay, CH_SPAWN, x);
143 }
144 }
145
doParticles()146 void doParticles()
147 {
148 Particle *particle = (Particle*)map.particleList.getHead();
149 Particle *previous = particle;
150
151 int x, y;
152
153 while (particle->next != NULL)
154 {
155 particle = (Particle*)particle->next;
156
157 x = (int)(particle->x - engine.playerPosX);
158 y = (int)(particle->y - engine.playerPosY);
159
160 if (particle->sprite == NULL)
161 {
162 graphics.lock(graphics.screen);
163
164 graphics.putPixel(x, y, particle->color, graphics.screen);
165
166 graphics.unlock(graphics.screen);
167 }
168 else
169 {
170 graphics.blit(particle->getFrame(), x, y, graphics.screen, false);
171 }
172
173 particle->health--;
174
175 particle->move();
176
177 if (!(particle->flags & PAR_WEIGHTLESS))
178 {
179 particle->dy += 0.1;
180 }
181
182 x = (int)particle->x >> BRICKSHIFT;
183 y = (int)particle->y >> BRICKSHIFT;
184
185 if (particle->flags & PAR_COLLIDES)
186 {
187 if (map.isSolid(x, y))
188 {
189 particle->health = 0;
190 }
191 }
192
193 if (particle->flags & PAR_LIQUID)
194 {
195 if (!map.isLiquid(x, y))
196 {
197 particle->health = 0;
198 }
199 }
200
201 if (particle->health > 0)
202 {
203 previous = particle;
204 }
205 else
206 {
207 map.particleList.remove(previous, particle);
208 particle = previous;
209 }
210 }
211 }
212