310 lines
11 KiB
C
310 lines
11 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <GL/gl.h>
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#include <zoom/types.h>
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#include <zoom/level.h>
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#include <zoom/texture.h>
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#include <zoom/math.h>
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extern GLuint sphere;
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extern GLuint meditex_blue;
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extern float objrot;
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int LoadLevel(char *filename, LEVEL *level) {
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FILE *file;
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LEVELHEADER levelheader;
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ROOMHEADER roomheader;
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int i, j;
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unsigned char c;
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unsigned char buffer[260];
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strcpy(buffer, "levels/");
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strcat(buffer, filename);
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file = fopen(buffer, "rb");
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if(!file) return 0;
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fread(&levelheader, sizeof(LEVELHEADER), 1, file);
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if(levelheader.l != 'L' || levelheader.f != 'F') {
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fclose(file);
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return 0;
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}
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level->nRooms = levelheader.nRooms;
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level->rooms = malloc(levelheader.nRooms * sizeof(ROOM));
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for(i = 0; i < levelheader.nRooms; i++) {
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fread(&roomheader, sizeof(ROOMHEADER), 1, file);
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level->rooms[i].nTriangles = roomheader.nTriangles;
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level->rooms[i].triangles = malloc(roomheader.nTriangles * sizeof(TRIANGLE));
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fread(level->rooms[i].triangles, sizeof(TRIANGLE), roomheader.nTriangles, file);
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level->rooms[i].nObjects = roomheader.nObjects;
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level->rooms[i].objects = malloc(roomheader.nObjects * sizeof(OBJECT));
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fread(level->rooms[i].objects, sizeof(OBJECT), roomheader.nObjects, file);
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level->rooms[i].nGates = roomheader.nGates;
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level->rooms[i].gates = malloc(roomheader.nGates * sizeof(GATE));
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fread(level->rooms[i].gates, sizeof(GATE), roomheader.nGates, file);
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level->rooms[i].gateinfo = malloc(roomheader.nGates * sizeof(GATEINFO));
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for(j = 0; j < level->rooms[i].nGates; j++) level->rooms[i].gateinfo[j].state = STATE_CLOSED;
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}
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level->nTextures = levelheader.nTextures;
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level->textures = malloc(levelheader.nTextures * sizeof(GLuint));
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for(i = 0; i < levelheader.nTextures; i++) {
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fread(&c, 1, 1, file);
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fread(buffer, c, 1, file);
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buffer[c] = 0;
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level->textures[i] = LoadTexture(buffer);
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}
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fclose(file);
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return 1;
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}
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void DrawRoom(LEVEL *level, int room) {
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int i;
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int r, g;
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GLfloat std_emission[] = {0.0, 0.0, 0.0, 1.0};
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GLfloat medipak100_emission[] = {1.0, 0.0, 0.0, 1.0};
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TRIANGLE t1, t2;
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VERTEX p1, p2;
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VECTOR v1, v2;
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MATRIX transform;
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for(i = 0; i < level->rooms[room].nTriangles; i++) {
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glBindTexture(GL_TEXTURE_2D, level->textures[level->rooms[room].triangles[i].texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&level->rooms[room].triangles[i].normal);
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glTexCoord2fv((GLfloat*)&level->rooms[room].triangles[i].texcoords[0]);
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glVertex3fv((GLfloat*)&level->rooms[room].triangles[i].vertices[0]);
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glTexCoord2fv((GLfloat*)&level->rooms[room].triangles[i].texcoords[1]);
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glVertex3fv((GLfloat*)&level->rooms[room].triangles[i].vertices[1]);
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glTexCoord2fv((GLfloat*)&level->rooms[room].triangles[i].texcoords[2]);
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glVertex3fv((GLfloat*)&level->rooms[room].triangles[i].vertices[2]);
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glEnd();
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}
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for(i = 0; i < level->rooms[room].nObjects; i++) {
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if(!level->rooms[room].objects[i].visible) continue;
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switch(level->rooms[room].objects[i].type) {
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case OBJECT_MEDIPAK100:
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glPushMatrix();
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glBindTexture(GL_TEXTURE_2D, meditex_blue);
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glMaterialfv(GL_FRONT, GL_EMISSION, medipak100_emission);
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glTranslatef(level->rooms[room].objects[i].pos.x, level->rooms[room].objects[i].pos.y, level->rooms[room].objects[i].pos.z);
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glRotatef(objrot*10, 0.0, 1.0, 0.0);
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glScalef(0.3, 0.3, 0.3);
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glCallList(sphere);
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glMaterialfv(GL_FRONT, GL_EMISSION, std_emission);
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glPopMatrix();
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}
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}
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for(i = 0; i < level->rooms[room].nGates; i++) {
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if(level->rooms[room].gateinfo[i].state == STATE_CLOSED) {
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glBindTexture(GL_TEXTURE_2D, level->textures[level->rooms[room].gates[i].triangles[0].texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].normal);
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glTexCoord2fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].texcoords[0]);
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glVertex3fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].vertices[0]);
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glTexCoord2fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].texcoords[1]);
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glVertex3fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].vertices[1]);
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glTexCoord2fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].texcoords[2]);
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glVertex3fv((GLfloat*)&level->rooms[room].gates[i].triangles[0].vertices[2]);
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glEnd();
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glBindTexture(GL_TEXTURE_2D, level->textures[level->rooms[room].gates[i].triangles[0].texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].normal);
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glTexCoord2fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].texcoords[0]);
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glVertex3fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].vertices[0]);
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glTexCoord2fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].texcoords[1]);
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glVertex3fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].vertices[1]);
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glTexCoord2fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].texcoords[2]);
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glVertex3fv((GLfloat*)&level->rooms[room].gates[i].triangles[1].vertices[2]);
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glEnd();
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}
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else if(level->rooms[room].gateinfo[i].state == STATE_OPENING) {
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t1 = level->rooms[room].gates[i].triangles[0];
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t2 = level->rooms[room].gates[i].triangles[1];
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t1.vertices[2] = VectorAdd(VectorMul(t1.vertices[2], level->rooms[room].gateinfo[i].timer/1000.0),
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VectorMul(t1.vertices[1], 1 - (level->rooms[room].gateinfo[i].timer/1000.0)));
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t2.vertices[1] = t1.vertices[2];
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t2.vertices[2] = VectorAdd(VectorMul(t2.vertices[2], level->rooms[room].gateinfo[i].timer/1000.0),
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VectorMul(t2.vertices[0], 1 - (level->rooms[room].gateinfo[i].timer/1000.0)));
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t1.texcoords[0].s = t1.texcoords[0].s * level->rooms[room].gateinfo[i].timer/1000.0
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+ t2.texcoords[2].s * (1 - level->rooms[room].gateinfo[i].timer/1000.0);
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t1.texcoords[0].t = t1.texcoords[0].t * level->rooms[room].gateinfo[i].timer/1000.0
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+ t2.texcoords[2].t * (1 - level->rooms[room].gateinfo[i].timer/1000.0);
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t1.texcoords[1].s = t1.texcoords[1].s * level->rooms[room].gateinfo[i].timer/1000.0
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+ t1.texcoords[2].s * (1 - level->rooms[room].gateinfo[i].timer/1000.0);
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t1.texcoords[1].t = t1.texcoords[1].t * level->rooms[room].gateinfo[i].timer/1000.0
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+ t1.texcoords[2].t * (1 - level->rooms[room].gateinfo[i].timer/1000.0);
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t2.texcoords[0] = t1.texcoords[0];
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glBindTexture(GL_TEXTURE_2D, level->textures[t1.texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&t1.normal);
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glTexCoord2fv((GLfloat*)&t1.texcoords[0]);
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glVertex3fv((GLfloat*)&t1.vertices[0]);
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glTexCoord2fv((GLfloat*)&t1.texcoords[1]);
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glVertex3fv((GLfloat*)&t1.vertices[1]);
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glTexCoord2fv((GLfloat*)&t1.texcoords[2]);
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glVertex3fv((GLfloat*)&t1.vertices[2]);
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glEnd();
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glBindTexture(GL_TEXTURE_2D, level->textures[t2.texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&t2.normal);
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glTexCoord2fv((GLfloat*)&t2.texcoords[0]);
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glVertex3fv((GLfloat*)&t2.vertices[0]);
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glTexCoord2fv((GLfloat*)&t2.texcoords[1]);
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glVertex3fv((GLfloat*)&t2.vertices[1]);
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glTexCoord2fv((GLfloat*)&t2.texcoords[2]);
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glVertex3fv((GLfloat*)&t2.vertices[2]);
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glEnd();
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r = level->rooms[room].gates[i].room;
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g = level->rooms[room].gates[i].gate;
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t1 = level->rooms[room].gates[i].triangles[0];
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t2 = level->rooms[room].gates[i].triangles[1];
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p1 = level->rooms[room].gates[i].point;
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v1 = t1.normal;
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t1 = level->rooms[r].gates[g].triangles[0];
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t2 = level->rooms[r].gates[g].triangles[1];
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p2 = level->rooms[r].gates[g].point;
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v2 = VectorNeg(t1.normal);
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glPushMatrix();
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transform = VectorMatrix(p1, v1, p2, v2);
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glMultMatrixf(transform.f);
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DrawRoom(level, r);
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glPopMatrix();
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}
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else if(level->rooms[room].gateinfo[i].state == STATE_CLOSING) {
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t1 = level->rooms[room].gates[i].triangles[0];
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t2 = level->rooms[room].gates[i].triangles[1];
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t1.vertices[2] = VectorAdd(VectorMul(t1.vertices[2], 1 - (level->rooms[room].gateinfo[i].timer/1000.0)),
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VectorMul(t1.vertices[1], level->rooms[room].gateinfo[i].timer/1000.0));
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t2.vertices[1] = t1.vertices[2];
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t2.vertices[2] = VectorAdd(VectorMul(t2.vertices[2], 1 - (level->rooms[room].gateinfo[i].timer/1000.0)),
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VectorMul(t2.vertices[0], level->rooms[room].gateinfo[i].timer/1000.0));
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t1.texcoords[0].s = t1.texcoords[0].s * (1 - level->rooms[room].gateinfo[i].timer/1000.0)
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+ t2.texcoords[2].s * level->rooms[room].gateinfo[i].timer/1000.0;
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t1.texcoords[0].t = t1.texcoords[0].t * (1 - level->rooms[room].gateinfo[i].timer/1000.0)
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+ t2.texcoords[2].t * level->rooms[room].gateinfo[i].timer/1000.0;
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t1.texcoords[1].s = t1.texcoords[1].s * (1 - level->rooms[room].gateinfo[i].timer/1000.0)
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+ t1.texcoords[2].s * level->rooms[room].gateinfo[i].timer/1000.0;
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t1.texcoords[1].t = t1.texcoords[1].t * (1 - level->rooms[room].gateinfo[i].timer/1000.0)
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+ t1.texcoords[2].t * level->rooms[room].gateinfo[i].timer/1000.0;
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t2.texcoords[0] = t1.texcoords[0];
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glBindTexture(GL_TEXTURE_2D, level->textures[t1.texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&t1.normal);
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glTexCoord2fv((GLfloat*)&t1.texcoords[0]);
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glVertex3fv((GLfloat*)&t1.vertices[0]);
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glTexCoord2fv((GLfloat*)&t1.texcoords[1]);
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glVertex3fv((GLfloat*)&t1.vertices[1]);
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glTexCoord2fv((GLfloat*)&t1.texcoords[2]);
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glVertex3fv((GLfloat*)&t1.vertices[2]);
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glEnd();
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glBindTexture(GL_TEXTURE_2D, level->textures[t2.texture]);
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glBegin(GL_TRIANGLES);
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glNormal3fv((GLfloat*)&t2.normal);
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glTexCoord2fv((GLfloat*)&t2.texcoords[0]);
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glVertex3fv((GLfloat*)&t2.vertices[0]);
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glTexCoord2fv((GLfloat*)&t2.texcoords[1]);
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glVertex3fv((GLfloat*)&t2.vertices[1]);
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glTexCoord2fv((GLfloat*)&t2.texcoords[2]);
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glVertex3fv((GLfloat*)&t2.vertices[2]);
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glEnd();
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r = level->rooms[room].gates[i].room;
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g = level->rooms[room].gates[i].gate;
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t1 = level->rooms[room].gates[i].triangles[0];
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t2 = level->rooms[room].gates[i].triangles[1];
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p1 = level->rooms[room].gates[i].point;
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v1 = t1.normal;
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t1 = level->rooms[r].gates[g].triangles[0];
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t2 = level->rooms[r].gates[g].triangles[1];
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p2 = level->rooms[r].gates[g].point;
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v2 = VectorNeg(t1.normal);
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glPushMatrix();
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transform = VectorMatrix(p1, v1, p2, v2);
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glMultMatrixf(transform.f);
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DrawRoom(level, r);
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glPopMatrix();
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}
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else {
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r = level->rooms[room].gates[i].room;
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g = level->rooms[room].gates[i].gate;
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t1 = level->rooms[room].gates[i].triangles[0];
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t2 = level->rooms[room].gates[i].triangles[1];
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p1 = level->rooms[room].gates[i].point;
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v1 = t1.normal;
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t1 = level->rooms[r].gates[g].triangles[0];
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t2 = level->rooms[r].gates[g].triangles[1];
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p2 = level->rooms[r].gates[g].point;
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v2 = VectorNeg(t1.normal);
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glPushMatrix();
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transform = VectorMatrix(p1, v1, p2, v2);
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glMultMatrixf(transform.f);
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DrawRoom(level, r);
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glPopMatrix();
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}
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}
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}
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void FreeLevel(LEVEL *level) {
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int i;
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if(level->nRooms) {
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for(i = 0; i < level->nRooms; i++) {
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if(level->rooms[i].nTriangles) free(level->rooms[i].triangles);
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if(level->rooms[i].nObjects) free(level->rooms[i].objects);
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if(level->rooms[i].nGates) free(level->rooms[i].gates);
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}
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free(level->rooms);
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}
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}
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