textpsys

annotate src/effect.cc @ 3:b1c8d2784c72

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made the timer internal to the effect, fx_draw doesn't take a time value any more
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 20 Aug 2015 06:40:23 +0300
parents 4b1360a5d54d
children
rev   line source
nuclear@0 1 #include <stdio.h>
nuclear@0 2 #include <stdlib.h>
nuclear@3 3 #include <unistd.h>
nuclear@3 4 #include <sys/time.h>
nuclear@0 5 #include "opengl.h"
nuclear@1 6 #include "effect.h"
nuclear@0 7 #include "psys.h"
nuclear@0 8
nuclear@0 9 #include "hello1.h"
nuclear@0 10 #include "hello2.h"
nuclear@0 11 #include "pimg.h"
nuclear@0 12
nuclear@2 13 #define HELLO_DURATION 4000
nuclear@2 14
nuclear@0 15 static PSysParam ppmain;
nuclear@0 16 static PSysParam ppexpl, ppflame;
nuclear@0 17
nuclear@0 18 static ParticleSystem psys;
nuclear@0 19 static Image *pimg;
nuclear@0 20 static Image *simg[2];
nuclear@2 21 static int cur_simg = -1;
nuclear@2 22 static bool exploding;
nuclear@2 23
nuclear@2 24 static void explode();
nuclear@3 25 static unsigned long get_msec();
nuclear@0 26
nuclear@1 27 bool fx_init()
nuclear@0 28 {
nuclear@0 29 ppmain.spawn_rate = 20000;
nuclear@0 30 ppmain.size = 0.06;
nuclear@0 31 ppmain.spawn_range = 0.01;
nuclear@0 32 ppmain.life = 0.4;
nuclear@0 33 ppmain.gravity = Vector3(0, 0.01, 0);
nuclear@0 34
nuclear@0 35 ppmain.pcolor_start = Vector3(0.717, 0.494, 0.951) * 0.6;
nuclear@0 36 ppmain.pcolor_end = Vector3(0.9, 0.135, 0.005) * 0.6;
nuclear@0 37 ppmain.pcolor_mid = lerp(ppmain.pcolor_start, ppmain.pcolor_mid, 0.5);
nuclear@0 38
nuclear@0 39 ppmain.palpha_start = 1.0;
nuclear@0 40 ppmain.palpha_mid = 0.5;
nuclear@0 41 ppmain.palpha_end = 0.0;
nuclear@0 42
nuclear@0 43 ppmain.pscale_start = 1.0;
nuclear@0 44 ppmain.pscale_mid = 1.0;
nuclear@0 45 ppmain.pscale_end = 7.0;
nuclear@0 46
nuclear@0 47 pimg = new Image;
nuclear@0 48 pimg->pixels = (unsigned char*)img_particle.pixel_data;
nuclear@0 49 pimg->width = img_particle.width;
nuclear@0 50 pimg->height = img_particle.height;
nuclear@0 51
nuclear@0 52 ppmain.pimg = pimg;
nuclear@0 53
nuclear@0 54 simg[0] = new Image;
nuclear@0 55 simg[0]->pixels = (unsigned char*)img_hello1.pixel_data;
nuclear@0 56 simg[0]->width = img_hello1.width;
nuclear@0 57 simg[0]->height = img_hello1.height;
nuclear@0 58
nuclear@0 59 simg[1] = new Image;
nuclear@0 60 simg[1]->pixels = (unsigned char*)img_hello2.pixel_data;
nuclear@0 61 simg[1]->width = img_hello2.width;
nuclear@0 62 simg[1]->height = img_hello2.height;
nuclear@0 63
nuclear@0 64 ppmain.spawn_map = simg[0];
nuclear@0 65 ppmain.spawn_map_speed = 0.8;
nuclear@0 66 psys.pp = ppmain;
nuclear@2 67 psys.active = false;
nuclear@0 68
nuclear@0 69 // explosion parameters
nuclear@0 70 ppexpl = ppmain;
nuclear@0 71 ppexpl.pcolor_start = ppmain.pcolor_mid;
nuclear@0 72 ppexpl.pcolor_mid = lerp(ppexpl.pcolor_start, ppexpl.pcolor_end, 0.5);
nuclear@0 73
nuclear@0 74 ppexpl.palpha_start = 1.0;
nuclear@0 75 ppexpl.palpha_mid = 0.5;
nuclear@0 76 ppexpl.palpha_end = 0.05;
nuclear@0 77
nuclear@0 78 ppexpl.pscale_start = 1.0;
nuclear@0 79 ppexpl.pscale_mid = 3.0;
nuclear@0 80 ppexpl.pscale_end = 5.0;
nuclear@0 81 ppexpl.gravity = Vector3(0, -6, 0);
nuclear@0 82
nuclear@0 83 // flame parameters
nuclear@0 84 ppflame = ppexpl;
nuclear@0 85 ppflame.pcolor_start = Vector3(1.0, 0.8, 0.2) * 0.5;
nuclear@0 86 ppflame.pcolor_mid = Vector3(1.0, 0.3, 0.2) * 0.5;
nuclear@0 87 ppflame.pcolor_end = Vector3(0.1, 0.1, 0.1);
nuclear@0 88 //ppflame.pcolor_mid = lerp(ppflame.pcolor_start, ppflame.pcolor_end, 0.6);
nuclear@0 89
nuclear@0 90 ppflame.life = 0.5;
nuclear@0 91 ppflame.life_range = 0.25;
nuclear@0 92 ppflame.size = 0.07;
nuclear@0 93 ppflame.size_range = 0.03;
nuclear@0 94 ppflame.spawn_rate = 18000;
nuclear@0 95 ppflame.gravity = Vector3(0, 2, 0);
nuclear@0 96
nuclear@0 97 ppflame.palpha_start *= 0.7;
nuclear@0 98 ppflame.palpha_mid *= 0.7;
nuclear@0 99 ppflame.palpha_end *= 0.7;
nuclear@0 100
nuclear@0 101 return true;
nuclear@0 102 }
nuclear@0 103
nuclear@1 104 void fx_cleanup()
nuclear@0 105 {
nuclear@0 106 delete pimg;
nuclear@0 107 delete simg[0];
nuclear@0 108 delete simg[1];
nuclear@0 109 }
nuclear@0 110
nuclear@3 111 void fx_draw()
nuclear@0 112 {
nuclear@2 113 static unsigned long prev_msec, ps_start_time;
nuclear@3 114 unsigned long msec = get_msec();
nuclear@0 115 float dt = (msec - prev_msec) / 1000.0;
nuclear@0 116 prev_msec = msec;
nuclear@0 117
nuclear@2 118 if(!psys.alive()) {
nuclear@2 119 cur_simg = (cur_simg + 1) & 1;
nuclear@2 120 printf("starting %d\n", cur_simg);
nuclear@2 121
nuclear@2 122 psys.reset();
nuclear@2 123 ppflame.spawn_map = simg[cur_simg];
nuclear@2 124 ppexpl.spawn_map = simg[cur_simg];
nuclear@2 125 ppmain.spawn_map = simg[cur_simg];
nuclear@2 126 psys.pp = ppmain;
nuclear@2 127 ps_start_time = msec;
nuclear@2 128 exploding = false;
nuclear@2 129 } else {
nuclear@2 130 if(msec - ps_start_time > HELLO_DURATION && psys.active && !exploding) {
nuclear@2 131 exploding = true;
nuclear@2 132 explode();
nuclear@2 133 }
nuclear@2 134 }
nuclear@2 135
nuclear@0 136 psys.update(dt);
nuclear@0 137 psys.draw();
nuclear@0 138 }
nuclear@0 139
nuclear@2 140 static void explode()
nuclear@0 141 {
nuclear@0 142 psys.explode(Vector3(0, 0, 0), 2.5, ppflame.life, 1.5);
nuclear@0 143 psys.pp = ppflame;
nuclear@0 144 //psys.explode(Vector3(0, -0.2, 0), 3.0, 1.5);
nuclear@0 145 //psys.pp = ppexpl;
nuclear@0 146 }
nuclear@3 147
nuclear@3 148 static unsigned long get_msec()
nuclear@3 149 {
nuclear@3 150 static struct timeval tv0;
nuclear@3 151 struct timeval tv;
nuclear@3 152
nuclear@3 153 gettimeofday(&tv, 0);
nuclear@3 154 if(tv0.tv_sec == 0 && tv0.tv_usec == 0) {
nuclear@3 155 tv0 = tv;
nuclear@3 156 return 0;
nuclear@3 157 }
nuclear@3 158
nuclear@3 159 return (tv.tv_sec - tv0.tv_sec) * 1000 + (tv.tv_usec - tv0.tv_usec) / 1000;
nuclear@3 160 }