textpsys

annotate src/effect.cc @ 2:4b1360a5d54d

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author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 20 Aug 2015 04:52:30 +0300
parents 57c6f7b70126
children b1c8d2784c72
rev   line source
nuclear@0 1 #include <stdio.h>
nuclear@0 2 #include <stdlib.h>
nuclear@0 3 #include "opengl.h"
nuclear@1 4 #include "effect.h"
nuclear@0 5 #include "psys.h"
nuclear@0 6
nuclear@0 7 #include "hello1.h"
nuclear@0 8 #include "hello2.h"
nuclear@0 9 #include "pimg.h"
nuclear@0 10
nuclear@2 11 #define HELLO_DURATION 4000
nuclear@2 12
nuclear@0 13 static PSysParam ppmain;
nuclear@0 14 static PSysParam ppexpl, ppflame;
nuclear@0 15
nuclear@0 16 static ParticleSystem psys;
nuclear@0 17 static Image *pimg;
nuclear@0 18 static Image *simg[2];
nuclear@2 19 static int cur_simg = -1;
nuclear@2 20 static bool exploding;
nuclear@2 21
nuclear@2 22 static void explode();
nuclear@0 23
nuclear@1 24 bool fx_init()
nuclear@0 25 {
nuclear@0 26 ppmain.spawn_rate = 20000;
nuclear@0 27 ppmain.size = 0.06;
nuclear@0 28 ppmain.spawn_range = 0.01;
nuclear@0 29 ppmain.life = 0.4;
nuclear@0 30 ppmain.gravity = Vector3(0, 0.01, 0);
nuclear@0 31
nuclear@0 32 ppmain.pcolor_start = Vector3(0.717, 0.494, 0.951) * 0.6;
nuclear@0 33 ppmain.pcolor_end = Vector3(0.9, 0.135, 0.005) * 0.6;
nuclear@0 34 ppmain.pcolor_mid = lerp(ppmain.pcolor_start, ppmain.pcolor_mid, 0.5);
nuclear@0 35
nuclear@0 36 ppmain.palpha_start = 1.0;
nuclear@0 37 ppmain.palpha_mid = 0.5;
nuclear@0 38 ppmain.palpha_end = 0.0;
nuclear@0 39
nuclear@0 40 ppmain.pscale_start = 1.0;
nuclear@0 41 ppmain.pscale_mid = 1.0;
nuclear@0 42 ppmain.pscale_end = 7.0;
nuclear@0 43
nuclear@0 44 pimg = new Image;
nuclear@0 45 pimg->pixels = (unsigned char*)img_particle.pixel_data;
nuclear@0 46 pimg->width = img_particle.width;
nuclear@0 47 pimg->height = img_particle.height;
nuclear@0 48
nuclear@0 49 ppmain.pimg = pimg;
nuclear@0 50
nuclear@0 51 simg[0] = new Image;
nuclear@0 52 simg[0]->pixels = (unsigned char*)img_hello1.pixel_data;
nuclear@0 53 simg[0]->width = img_hello1.width;
nuclear@0 54 simg[0]->height = img_hello1.height;
nuclear@0 55
nuclear@0 56 simg[1] = new Image;
nuclear@0 57 simg[1]->pixels = (unsigned char*)img_hello2.pixel_data;
nuclear@0 58 simg[1]->width = img_hello2.width;
nuclear@0 59 simg[1]->height = img_hello2.height;
nuclear@0 60
nuclear@0 61 ppmain.spawn_map = simg[0];
nuclear@0 62 ppmain.spawn_map_speed = 0.8;
nuclear@0 63 psys.pp = ppmain;
nuclear@2 64 psys.active = false;
nuclear@0 65
nuclear@0 66 // explosion parameters
nuclear@0 67 ppexpl = ppmain;
nuclear@0 68 ppexpl.pcolor_start = ppmain.pcolor_mid;
nuclear@0 69 ppexpl.pcolor_mid = lerp(ppexpl.pcolor_start, ppexpl.pcolor_end, 0.5);
nuclear@0 70
nuclear@0 71 ppexpl.palpha_start = 1.0;
nuclear@0 72 ppexpl.palpha_mid = 0.5;
nuclear@0 73 ppexpl.palpha_end = 0.05;
nuclear@0 74
nuclear@0 75 ppexpl.pscale_start = 1.0;
nuclear@0 76 ppexpl.pscale_mid = 3.0;
nuclear@0 77 ppexpl.pscale_end = 5.0;
nuclear@0 78 ppexpl.gravity = Vector3(0, -6, 0);
nuclear@0 79
nuclear@0 80 // flame parameters
nuclear@0 81 ppflame = ppexpl;
nuclear@0 82 ppflame.pcolor_start = Vector3(1.0, 0.8, 0.2) * 0.5;
nuclear@0 83 ppflame.pcolor_mid = Vector3(1.0, 0.3, 0.2) * 0.5;
nuclear@0 84 ppflame.pcolor_end = Vector3(0.1, 0.1, 0.1);
nuclear@0 85 //ppflame.pcolor_mid = lerp(ppflame.pcolor_start, ppflame.pcolor_end, 0.6);
nuclear@0 86
nuclear@0 87 ppflame.life = 0.5;
nuclear@0 88 ppflame.life_range = 0.25;
nuclear@0 89 ppflame.size = 0.07;
nuclear@0 90 ppflame.size_range = 0.03;
nuclear@0 91 ppflame.spawn_rate = 18000;
nuclear@0 92 ppflame.gravity = Vector3(0, 2, 0);
nuclear@0 93
nuclear@0 94 ppflame.palpha_start *= 0.7;
nuclear@0 95 ppflame.palpha_mid *= 0.7;
nuclear@0 96 ppflame.palpha_end *= 0.7;
nuclear@0 97
nuclear@0 98 return true;
nuclear@0 99 }
nuclear@0 100
nuclear@1 101 void fx_cleanup()
nuclear@0 102 {
nuclear@0 103 delete pimg;
nuclear@0 104 delete simg[0];
nuclear@0 105 delete simg[1];
nuclear@0 106 }
nuclear@0 107
nuclear@1 108 void fx_draw(unsigned long msec)
nuclear@0 109 {
nuclear@2 110 static unsigned long prev_msec, ps_start_time;
nuclear@0 111 float dt = (msec - prev_msec) / 1000.0;
nuclear@0 112 prev_msec = msec;
nuclear@0 113
nuclear@2 114 if(!psys.alive()) {
nuclear@2 115 cur_simg = (cur_simg + 1) & 1;
nuclear@2 116 printf("starting %d\n", cur_simg);
nuclear@2 117
nuclear@2 118 psys.reset();
nuclear@2 119 ppflame.spawn_map = simg[cur_simg];
nuclear@2 120 ppexpl.spawn_map = simg[cur_simg];
nuclear@2 121 ppmain.spawn_map = simg[cur_simg];
nuclear@2 122 psys.pp = ppmain;
nuclear@2 123 ps_start_time = msec;
nuclear@2 124 exploding = false;
nuclear@2 125 } else {
nuclear@2 126 if(msec - ps_start_time > HELLO_DURATION && psys.active && !exploding) {
nuclear@2 127 exploding = true;
nuclear@2 128 explode();
nuclear@2 129 }
nuclear@2 130 }
nuclear@2 131
nuclear@0 132 psys.update(dt);
nuclear@0 133 psys.draw();
nuclear@0 134 }
nuclear@0 135
nuclear@2 136 static void explode()
nuclear@0 137 {
nuclear@0 138 psys.explode(Vector3(0, 0, 0), 2.5, ppflame.life, 1.5);
nuclear@0 139 psys.pp = ppflame;
nuclear@0 140 //psys.explode(Vector3(0, -0.2, 0), 3.0, 1.5);
nuclear@0 141 //psys.pp = ppexpl;
nuclear@0 142 }