intravenous

annotate src/game.cc @ 8:0f305fc0b548

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fixed the mouse warping in low framerates
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 22 Apr 2012 07:15:28 +0300
parents aab0d8ea21cd
children 90af225f469a
rev   line source
nuclear@0 1 #include <stdlib.h>
nuclear@0 2 #include "opengl.h"
nuclear@0 3 #include "game.h"
nuclear@1 4 #include "vein.h"
nuclear@1 5 #include "ship.h"
nuclear@1 6 #include "camera.h"
nuclear@3 7 #include "cockpit.h"
nuclear@0 8
nuclear@5 9 static const Vector3 fog_color{0.64, 0.1, 0.1};
nuclear@5 10
nuclear@1 11 static Vein *vein;
nuclear@1 12 static Ship ship;
nuclear@1 13
nuclear@1 14 static int keystate[256];
nuclear@2 15 static int dbg_inside = false;
nuclear@4 16 static bool ignore_next_motion;
nuclear@1 17
nuclear@1 18 static OrbitCamera dbgcam;
nuclear@1 19
nuclear@1 20 static unsigned long msec, start_time = -1;
nuclear@0 21
nuclear@0 22 bool game_init()
nuclear@0 23 {
nuclear@0 24 glEnable(GL_DEPTH_TEST);
nuclear@0 25 glEnable(GL_CULL_FACE);
nuclear@0 26
nuclear@0 27 float lpos[] = {-1, 1, 1, 0};
nuclear@0 28 glLightfv(GL_LIGHT0, GL_POSITION, lpos);
nuclear@0 29
nuclear@3 30 // initialize the cockpit
nuclear@3 31 if(!cockpit_init()) {
nuclear@3 32 return false;
nuclear@3 33 }
nuclear@3 34
nuclear@3 35 // initialize the only level
nuclear@1 36 vein = new Vein;
nuclear@3 37 if(!vein->init()) {
nuclear@3 38 return false;
nuclear@3 39 }
nuclear@5 40 vein->set_fog_color(fog_color);
nuclear@5 41
nuclear@5 42 glClearColor(fog_color.x, fog_color.y, fog_color.z, 1);
nuclear@1 43
nuclear@0 44 return true;
nuclear@0 45 }
nuclear@0 46
nuclear@0 47 void game_shutdown()
nuclear@0 48 {
nuclear@3 49 delete vein;
nuclear@3 50 cockpit_destroy();
nuclear@0 51 exit(0);
nuclear@0 52 }
nuclear@0 53
nuclear@1 54 void game_update(unsigned long ms)
nuclear@0 55 {
nuclear@1 56 static unsigned long last_upd;
nuclear@1 57
nuclear@0 58 if(start_time == 0) {
nuclear@1 59 start_time = ms;
nuclear@0 60 }
nuclear@1 61 msec = ms - start_time;
nuclear@1 62
nuclear@1 63 time_sec_t dt = (msec - last_upd) / 1000.0;
nuclear@1 64
nuclear@1 65 // handle key input
nuclear@1 66 if(keystate['w'] || keystate['W']) {
nuclear@1 67 ship.accelerate(1.0 * dt);
nuclear@1 68 }
nuclear@1 69 if(keystate['s'] || keystate['S']) {
nuclear@1 70 ship.accelerate(-1.0 * dt);
nuclear@1 71 }
nuclear@1 72 if(keystate['d'] || keystate['D']) {
nuclear@3 73 ship.accelerate_side(1.0 * dt);
nuclear@1 74 }
nuclear@1 75 if(keystate['a'] || keystate['A']) {
nuclear@3 76 ship.accelerate_side(-1.0 * dt);
nuclear@1 77 }
nuclear@3 78 /*if(keystate['e'] || keystate['E']) {
nuclear@2 79 ship.turn(0.0, 1.0 * dt);
nuclear@1 80 }
nuclear@1 81 if(keystate['c'] || keystate['C']) {
nuclear@2 82 ship.turn(0.0, -1.0 * dt);
nuclear@3 83 }*/
nuclear@1 84
nuclear@1 85 ship.update(dt);
nuclear@1 86
nuclear@1 87 last_upd = msec;
nuclear@0 88 }
nuclear@0 89
nuclear@0 90 void game_draw()
nuclear@0 91 {
nuclear@0 92 glMatrixMode(GL_MODELVIEW);
nuclear@0 93
nuclear@2 94 if(dbg_inside) {
nuclear@2 95 load_gl_matrix(ship.get_matrix().inverse());
nuclear@3 96 } else {
nuclear@3 97 dbgcam.use();
nuclear@2 98 }
nuclear@2 99
nuclear@1 100 vein->draw(ship.get_position());
nuclear@3 101
nuclear@3 102 if(!dbg_inside) {
nuclear@3 103 ship.dbg_draw();
nuclear@3 104 } else {
nuclear@3 105 cockpit_draw();
nuclear@3 106 }
nuclear@0 107 }
nuclear@0 108
nuclear@0 109 void game_input_keyb(int key, int state)
nuclear@0 110 {
nuclear@0 111 if(state) {
nuclear@0 112 switch(key) {
nuclear@0 113 case 27:
nuclear@0 114 game_shutdown();
nuclear@1 115 break;
nuclear@0 116
nuclear@2 117 case '\b':
nuclear@2 118 dbg_inside = !dbg_inside;
nuclear@3 119 if(dbg_inside) {
nuclear@3 120 glutPassiveMotionFunc(game_input_mmotion);
nuclear@3 121 glutSetCursor(GLUT_CURSOR_NONE);
nuclear@4 122
nuclear@4 123 ignore_next_motion = true;
nuclear@4 124 glutWarpPointer(win_xsz / 2, win_ysz / 2);
nuclear@3 125 } else {
nuclear@3 126 glutPassiveMotionFunc(0);
nuclear@3 127 glutSetCursor(GLUT_CURSOR_INHERIT);
nuclear@3 128 }
nuclear@2 129 break;
nuclear@2 130
nuclear@0 131 default:
nuclear@0 132 break;
nuclear@0 133 }
nuclear@0 134 }
nuclear@1 135
nuclear@1 136 if(key < 256) {
nuclear@1 137 keystate[key] = state;
nuclear@1 138 }
nuclear@0 139 }
nuclear@1 140
nuclear@1 141 static int bnstate[16];
nuclear@1 142 static int prev_x, prev_y;
nuclear@1 143
nuclear@1 144 void game_input_mbutton(int bn, int state, int x, int y)
nuclear@1 145 {
nuclear@1 146 if(bn < 16) {
nuclear@1 147 bnstate[bn] = state;
nuclear@1 148 }
nuclear@1 149 prev_x = x;
nuclear@1 150 prev_y = y;
nuclear@1 151 }
nuclear@1 152
nuclear@8 153 #define EDGE_PIXELS (win_ysz / 4)
nuclear@8 154
nuclear@1 155 void game_input_mmotion(int x, int y)
nuclear@1 156 {
nuclear@1 157 int dx = x - prev_x;
nuclear@1 158 int dy = y - prev_y;
nuclear@1 159 prev_x = x;
nuclear@1 160 prev_y = y;
nuclear@1 161
nuclear@8 162 if(ignore_next_motion || abs(dx) >= win_xsz / 2 - EDGE_PIXELS ||
nuclear@8 163 abs(dy) >= win_ysz / 2 - EDGE_PIXELS) {
nuclear@4 164 ignore_next_motion = false;
nuclear@3 165 return;
nuclear@1 166 }
nuclear@3 167
nuclear@3 168 if(dbg_inside) {
nuclear@3 169 ship.turn((float)-dx / win_xsz, (float)-dy / win_ysz);
nuclear@3 170
nuclear@8 171 if(x < EDGE_PIXELS || x >= win_xsz - EDGE_PIXELS || y < EDGE_PIXELS || y >= win_ysz - EDGE_PIXELS) {
nuclear@8 172 glutWarpPointer(win_xsz / 2, win_ysz / 2);
nuclear@8 173 }
nuclear@3 174 } else {
nuclear@3 175 if(bnstate[0]) {
nuclear@3 176 dbgcam.input_rotate(10.0 * dx / win_xsz, 10.0 * dy / win_ysz, 0);
nuclear@3 177 }
nuclear@3 178 if(bnstate[2]) {
nuclear@3 179 dbgcam.input_zoom(10.0 * dy / win_ysz);
nuclear@3 180 }
nuclear@1 181 }
nuclear@1 182 }