[3140] | 1 | /* |
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| 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | ### File Specific: |
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| 12 | main-programmer: Benjamin Grauer |
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| 13 | co-programmer: ... |
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| 14 | */ |
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| 15 | |
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[2931] | 16 | #include "framework.h" |
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[2748] | 17 | |
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| 18 | void DrawGLScene() |
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| 19 | { |
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[2940] | 20 | currFrame = SDL_GetTicks(); |
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| 21 | dt = currFrame - lastFrame; |
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| 22 | if (dt == 0) |
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| 23 | dist += (zoomTo-dist)/500; |
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| 24 | else |
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| 25 | dist += (zoomTo-dist)/500 *(float)dt; |
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[2939] | 26 | |
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[2940] | 27 | rotatorP += rotatorV *(float)dt; |
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[2759] | 28 | |
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[2952] | 29 | |
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[2748] | 30 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); |
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| 31 | glLoadIdentity(); // Reset the view |
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| 32 | |
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[2794] | 33 | glMatrixMode(GL_PROJECTION); |
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[2759] | 34 | glLoadIdentity(); |
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[2933] | 35 | gluPerspective(45.0f,500/375,0.1f,dist * 5.0f); |
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[2963] | 36 | gluLookAt (0, dist , dist, 0,0,0, up.x,up.y,up.z); |
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[2794] | 37 | |
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[2963] | 38 | glMatrixMode(GL_MODELVIEW); |
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| 39 | glPushMatrix(); |
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| 40 | // glRotatef (180, dir.x, dir.y, dir.z); |
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| 41 | glMultMatrixf (*matQ); |
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[3211] | 42 | if (obj) |
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| 43 | obj->draw(); |
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[2748] | 44 | |
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[2963] | 45 | glPopMatrix(); |
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| 46 | |
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[2748] | 47 | SDL_GL_SwapBuffers(); // Swap the buffers |
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[2940] | 48 | lastFrame = currFrame; |
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[2748] | 49 | } |
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| 50 | |
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| 51 | |
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| 52 | int main(int argc, char *argv[]) |
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| 53 | { |
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[3365] | 54 | verbose = 2; |
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[3201] | 55 | |
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[3205] | 56 | PRINTF(2)("This is The big verbose-Test %i, %s\n", 1, "cool"); |
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[3201] | 57 | |
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[2748] | 58 | Uint8* keys; // This variable will be used in the keyboard routine |
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| 59 | int done=FALSE; // We aren't done yet, are we? |
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| 60 | |
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| 61 | // Create a new OpenGL window with the title "Cone3D Basecode" at |
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| 62 | // 640x480x32, fullscreen and check for errors along the way |
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[3140] | 63 | if(wHandler.CreateGLWindow("Whandler Basecode", 800, 600, 32, FALSE) == FALSE) |
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[2748] | 64 | { |
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| 65 | // If an error is found, display a message, kill the GL and SDL screens (if they were created) and exit |
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[3206] | 66 | PRINTF(1)("Could not initalize OpenGL :(\n\n"); |
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[2748] | 67 | wHandler.KillGLWindow(); |
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| 68 | return 0; |
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| 69 | } |
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[2936] | 70 | |
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[3206] | 71 | PRINTF(2)("screensize: %i, %i\n", wHandler.screen->w, wHandler.screen->h); |
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[2846] | 72 | if (argc>=3) |
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[3396] | 73 | obj = new OBJModel (argv[1], atof(argv[2])); |
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[2846] | 74 | else if (argc>=2) |
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[3396] | 75 | obj = new OBJModel(argv[1]); |
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[2848] | 76 | else |
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[3396] | 77 | obj = (OBJModel*) new Model(); |
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[2850] | 78 | |
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[2952] | 79 | M = Vector(wHandler.screen->w/2, wHandler.screen->h/2, 0); |
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| 80 | rotAxis = Vector (0.0,1.0,0.0); |
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| 81 | rotAngle = 0; |
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[2963] | 82 | |
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| 83 | matQ[0][0] = matQ[1][1] = matQ[2][2] = matQ[3][3] = 1; |
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[2952] | 84 | rotQ = Quaternion (rotAngle, rotAxis); |
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[2963] | 85 | rotQlast = rotQ; |
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[2952] | 86 | dir = Vector (0.0, 0.0, 1.0); |
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[2963] | 87 | up = Vector (0.0, 1.0, 0.0); |
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[2952] | 88 | |
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[2931] | 89 | glEnable(GL_LIGHTING); |
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| 90 | glEnable(GL_DEPTH_TEST); |
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| 91 | |
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| 92 | GLfloat whiteLight[] = {1.0, 1.0, 1.0,1.0}; |
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| 93 | GLfloat light0Position[] = {10.0, 10.0, 10.0, 0.0}; |
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| 94 | GLfloat light1Position[] = {-10.0, -7.0, -6.0, 0.0}; |
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[2780] | 95 | GLfloat lmodelAmbient[] = {.1, .1, .1, 1.0}; |
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[2931] | 96 | |
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| 97 | glEnable(GL_LIGHT0); |
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| 98 | glLightfv(GL_LIGHT0, GL_POSITION, light0Position); |
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[2780] | 99 | glLightfv(GL_LIGHT0, GL_DIFFUSE, whiteLight); |
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| 100 | glLightfv(GL_LIGHT0, GL_SPECULAR, whiteLight); |
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[2931] | 101 | |
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| 102 | glEnable(GL_LIGHT1); |
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| 103 | glLightfv(GL_LIGHT1, GL_POSITION, light1Position); |
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| 104 | glLightfv(GL_LIGHT1, GL_DIFFUSE, whiteLight); |
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| 105 | glLightfv(GL_LIGHT1, GL_SPECULAR, whiteLight); |
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| 106 | |
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[3070] | 107 | |
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| 108 | glEnable(GL_TEXTURE_2D); |
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[2931] | 109 | rotatorP = .0; |
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| 110 | rotatorV = .0; |
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[2933] | 111 | dist = 5.0; |
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[2938] | 112 | zoomTo = dist; |
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[2748] | 113 | // Build the font from a TGA image font.tga in the data directory |
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| 114 | // Hide the mouse cursor |
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[2931] | 115 | SDL_ShowCursor(2); |
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[2952] | 116 | mouse1Down = false; |
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[2748] | 117 | |
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| 118 | // This is the main loop for the entire program and it will run until done==TRUE |
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| 119 | while(!done) |
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| 120 | { |
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| 121 | // Draw the scene |
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| 122 | DrawGLScene(); |
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| 123 | // And poll for events |
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| 124 | SDL_Event event; |
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| 125 | while ( SDL_PollEvent(&event) ) { |
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| 126 | switch (event.type) { |
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[2931] | 127 | case SDL_MOUSEMOTION: |
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[3206] | 128 | PRINTF(3)("Mouse motion about %d,%d Pixels to (%d,%d).\n", |
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| 129 | event.motion.xrel, event.motion.yrel, |
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| 130 | event.motion.x, event.motion.y); |
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[2952] | 131 | // TRACKBALL |
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| 132 | if (mouse1Down) |
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| 133 | { |
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[2963] | 134 | int mX = event.button.x; |
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| 135 | int mY = event.button.y; |
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| 136 | int wH = wHandler.screen->h; |
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| 137 | int wW = wHandler.screen->w; |
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| 138 | Vector tmpV (mX, mY, sqrt ( (float) abs(wH * wH/4 - (wW/2-mX) * (wW/2-mX) - (wH/2-mY) * (wH/2-mY)) )); |
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[3208] | 139 | // PRINTF(0)("tmpV: %f, %f, %f\n", tmpV.x, tmpV.y, tmpV.z); |
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[2952] | 140 | p2 = tmpV-M; |
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[2966] | 141 | p2.y = -p2.y; |
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[2952] | 142 | rotAxis = p1.cross(p2); |
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[3208] | 143 | // PRINTF(0)("rotAxis: %f, %f, %f\n", rotAxis.x, rotAxis.y, rotAxis.z); |
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[2952] | 144 | |
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[2963] | 145 | // in case that there is no rotation-axis defined |
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| 146 | if (rotAxis.x != 0 || rotAxis.y != 0 || rotAxis.z != 0) |
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| 147 | { |
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| 148 | rotAxis.normalize(); |
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[3208] | 149 | // PRINTF(0)("rotAxis: %f, %f, %f\n", rotAxis.x, rotAxis.y, rotAxis.z, rotAngle); |
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[2963] | 150 | |
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[3237] | 151 | rotAngle = angleRad (p1, p2); |
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[2963] | 152 | rotQ = Quaternion (rotAngle, rotAxis); |
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| 153 | rotQ = rotQ * rotQlast; |
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| 154 | rotQ.matrix (matQ); |
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| 155 | // dir = rotQ.apply(dir); |
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| 156 | // dir.normalize(); |
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[3208] | 157 | // PRINTF(0)("rotAxis: %f, %f, %f, %f\n", dir.x, dir.y, dir.z, rotAngle); |
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[2963] | 158 | } |
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| 159 | rotQlast = rotQ; |
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[2952] | 160 | p1 = p2; |
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[2963] | 161 | |
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[2952] | 162 | } |
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[2931] | 163 | break; |
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| 164 | case SDL_MOUSEBUTTONDOWN: |
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[2932] | 165 | if (event.button.button == 4) |
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[2933] | 166 | { |
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[3208] | 167 | PRINTF(0)("MouseWheel up\n"); |
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[2938] | 168 | zoomTo *= .5; |
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[2933] | 169 | } |
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[2932] | 170 | else if (event.button.button == 5) |
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[2933] | 171 | { |
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[3208] | 172 | PRINTF(2)("MouseWheel down\n"); |
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[2940] | 173 | zoomTo *= 2.0; |
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[2933] | 174 | } |
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[2952] | 175 | else if (event.button.button == 1) |
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| 176 | { |
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| 177 | mouse1Down = true; |
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[2963] | 178 | int mX = event.button.x; |
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| 179 | int mY = event.button.y; |
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| 180 | int wH = wHandler.screen->h; |
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| 181 | int wW = wHandler.screen->w; |
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| 182 | Vector tmpV (mX, mY, sqrt ( (float) abs(wH * wH/4 - (wW/2-mX) * (wW/2-mX) - (wH/2-mY) * (wH/2-mY)) )); |
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[2952] | 183 | p1 = tmpV-M; |
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[2966] | 184 | p1.y = -p1.y; |
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[2952] | 185 | |
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| 186 | } |
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[2932] | 187 | else |
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| 188 | { |
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[3208] | 189 | PRINTF(0)("MouseButton %d pressed at (%d,%d).\n", |
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[2932] | 190 | event.button.button, event.button.x, event.button.y); |
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[2936] | 191 | rotatorV = ( (float)wHandler.screen->w/2 -event.button.x) / (float)wHandler.screen->w / 100.0; |
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[2932] | 192 | } |
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| 193 | |
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[2931] | 194 | break; |
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[2952] | 195 | case SDL_MOUSEBUTTONUP: |
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| 196 | if (event.button.button == 4); |
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| 197 | else if (event.button.button == 5); |
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| 198 | else if (event.button.button == 1) |
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| 199 | mouse1Down =false; |
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| 200 | else |
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| 201 | { |
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[3208] | 202 | PRINTF(2)("MouseButton %d released at (%d,%d).\n", |
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| 203 | event.button.button, event.button.x, event.button.y); |
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[2952] | 204 | } |
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[2931] | 205 | break; |
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[3211] | 206 | |
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| 207 | |
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| 208 | case SDL_KEYDOWN: |
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| 209 | switch (event.key.keysym.sym) |
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| 210 | { |
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| 211 | case SDLK_x: |
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| 212 | delete obj; |
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| 213 | obj = NULL; |
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| 214 | break; |
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| 215 | case SDLK_c: |
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| 216 | if (!obj) |
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[3396] | 217 | obj = new OBJModel(argv[1]); |
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[3211] | 218 | break; |
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| 219 | } |
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| 220 | break; |
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[2952] | 221 | |
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[2748] | 222 | // If a quit event was recieved |
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[2863] | 223 | case SDL_QUIT: |
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| 224 | // then we're done and we'll end this program |
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[2748] | 225 | done=TRUE; |
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| 226 | break; |
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[2863] | 227 | default: |
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[2748] | 228 | break; |
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| 229 | } |
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[2952] | 230 | |
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| 231 | |
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[2748] | 232 | } |
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| 233 | |
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| 234 | // Get the state of the keyboard keys |
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| 235 | keys = SDL_GetKeyState(NULL); |
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| 236 | |
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| 237 | // and check if ESCAPE has been pressed. If so then quit |
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| 238 | if(keys[SDLK_ESCAPE]) done=TRUE; |
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| 239 | } |
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| 240 | |
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| 241 | // Kill the GL & SDL screens |
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[3211] | 242 | if (obj) |
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| 243 | delete obj; |
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[2748] | 244 | wHandler.KillGLWindow(); |
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| 245 | // And quit |
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| 246 | return 0; |
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| 247 | } |
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