109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdbool.h>
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#include "mesh.h"
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#include <stdlib.h>
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#include "array.h"
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mesh_t mesh = {
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.vertices = NULL,
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.faces = NULL,
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.rotation = { 0, 0, 0 },
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.scale = { 1.0, 1.0, 1.0 },
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.translation = { 0, 0, 0 },
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};
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vec3_t cube_vertices[N_CUBE_VERTICES] = {
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{ .x = -1, .y = -1, .z = -1 }, // 1
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{ .x = -1, .y = 1, .z = -1 }, // 2
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{ .x = 1, .y = 1, .z = -1 }, // 3
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{ .x = 1, .y = -1, .z = -1 }, // 4
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{ .x = 1, .y = 1, .z = 1 }, // 5
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{ .x = 1, .y = -1, .z = 1 }, // 6
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{ .x = -1, .y = 1, .z = 1 }, // 7
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{ .x = -1, .y = -1, .z = 1 } // 8
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};
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face_t cube_faces[N_CUBE_FACES] = {
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// front
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{ .a = 1, .b = 2, .c = 3 , .color = COLOR_ORANGE},
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{ .a = 1, .b = 3, .c = 4, .color = COLOR_ORANGE},
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// right
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{ .a = 4, .b = 3, .c = 5, .color = COLOR_TEAL_GREEN },
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{ .a = 4, .b = 5, .c = 6, .color = COLOR_TEAL_GREEN},
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// back
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{ .a = 6, .b = 5, .c = 7, .color = COLOR_RED },
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{ .a = 6, .b = 7, .c = 8, .color = COLOR_RED },
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// left
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{ .a = 8, .b = 7, .c = 2, .color = COLOR_PURPLE },
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{ .a = 8, .b = 2, .c = 1, .color = COLOR_PURPLE },
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// top
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{ .a = 2, .b = 7, .c = 5, .color = COLOR_GREY },
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{ .a = 2, .b = 5, .c = 3, .color = COLOR_GREY },
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// bottom
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{ .a = 6, .b = 8, .c = 1, .color = COLOR_LIGHT_GREEN_BLUE },
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{ .a = 6, .b = 1, .c = 4, .color = COLOR_LIGHT_GREEN_BLUE }
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};
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void load_cube_mesh_data(void) {
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for (int i = 0; i < N_CUBE_VERTICES; i++) {
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array_push(mesh.vertices, cube_vertices[i]);
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}
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for (int i = 0; i < N_CUBE_FACES; i++) {
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array_push(mesh.faces, cube_faces[i]);
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}
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}
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void parse_face(const char* buffer, face_t* face) {
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char temp_a[64], temp_b[64], temp_c[64];
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sscanf(buffer, "f %63s %63s %63s", temp_a, temp_b, temp_c);
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char* token;
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token = strtok(temp_a, "/");
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face->a = token ? atoi(token) : -1;
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token = strtok(temp_b, "/");
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face->b = token ? atoi(token) : -1;
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token = strtok(temp_c, "/");
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face->c = token ? atoi(token) : -1;
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}
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void load_file(const char* filename) {
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FILE* fp;
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char* tok;
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fp = fopen(filename, "r");
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if (fp == NULL) {
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exit(EXIT_FAILURE);
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}
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char buffer[MAX_LEN];
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while (fgets(buffer, MAX_LEN, fp)) {
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if (strncmp(buffer, "v ", 2) == 0) {
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vec3_t vertex;
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sscanf(buffer, "v %f %f %f", &vertex.x, &vertex.y, &vertex.z);
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array_push(mesh.vertices, vertex);
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} else if (strncmp(buffer, "f ", 2) == 0) {
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face_t face;
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parse_face(buffer, &face);
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array_push(mesh.faces, face);
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}
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printf("\n");
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}
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fflush(stdout);
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fclose(fp);
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} |