tinygi
diff src/scene.c @ 0:16fdca2a1ef5
initial tinygi commit
author | John Tsiombikas <nuclear@member.fsf.org> |
---|---|
date | Sun, 19 Jul 2015 18:30:29 +0300 |
parents | |
children | bc64090fe3d1 |
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/scene.c Sun Jul 19 18:30:29 2015 +0300 1.3 @@ -0,0 +1,98 @@ 1.4 +#include <stdlib.h> 1.5 +#include <string.h> 1.6 +#include <assert.h> 1.7 +#include "tgi_impl.h" 1.8 +#include "object.h" 1.9 +#include "dynarr.h" 1.10 + 1.11 +struct tinygi *tgi_init(void) 1.12 +{ 1.13 + struct tinygi *tgi; 1.14 + 1.15 + if(!(tgi = malloc(sizeof *tgi))) { 1.16 + tgi_log("failed to allocate memory\n"); 1.17 + return 0; 1.18 + } 1.19 + if(!(tgi->objects = dynarr_alloc(0, sizeof *tgi->objects))) { 1.20 + tgi_log("failed to allocate objects array\n"); 1.21 + free(tgi); 1.22 + return 0; 1.23 + } 1.24 + 1.25 + return tgi; 1.26 +} 1.27 + 1.28 +void tgi_destroy(struct tinygi *tgi) 1.29 +{ 1.30 + tgi_clear_scene(tgi); 1.31 + free(tgi); 1.32 +} 1.33 + 1.34 +void tgi_clear_scene(struct tinygi *tgi) 1.35 +{ 1.36 + int i, nobj = dynarr_size(tgi->objects); 1.37 + 1.38 + for(i=0; i<nobj; i++) { 1.39 + tgi_destroy_object(tgi->objects[i]); 1.40 + } 1.41 + tgi->objects = dynarr_resize(tgi->objects, 0); 1.42 + assert(tgi->objects); 1.43 +} 1.44 + 1.45 +int tgi_load_scene(struct tinygi *tgi, const char *fname) 1.46 +{ 1.47 + return -1; /* TODO implement later */ 1.48 +} 1.49 + 1.50 +void tgi_add_object(struct tinygi *tgi, struct tgi_object *o) 1.51 +{ 1.52 + tgi->objects = dynarr_push(tgi->objects, o); 1.53 + assert(tgi->objects); 1.54 +} 1.55 + 1.56 +int tgi_del_object(struct tinygi *tgi, struct tgi_object *o) 1.57 +{ 1.58 + int i, idx = -1, sz = dynarr_size(tgi->objects); 1.59 + 1.60 + if(!sz) return -1; 1.61 + 1.62 + for(i=0; i<sz; i++) { 1.63 + if(tgi->objects[i] == o) { 1.64 + idx = i; 1.65 + break; 1.66 + } 1.67 + } 1.68 + if(idx == -1) { 1.69 + return -1; 1.70 + } 1.71 + 1.72 + tgi->objects[idx] = tgi->objects[sz - 1]; 1.73 + tgi->objects = dynarr_pop(tgi->objects); 1.74 + assert(tgi->objects); 1.75 + return 0; 1.76 +} 1.77 + 1.78 +struct tgi_object *tgi_find_object(struct tinygi *tgi, const char *name) 1.79 +{ 1.80 + int i, sz = dynarr_size(tgi->objects); 1.81 + 1.82 + for(i=0; i<sz; i++) { 1.83 + if(strcmp(tgi->objects[i]->name, name) == 0) { 1.84 + return tgi->objects[i]; 1.85 + } 1.86 + } 1.87 + return 0; 1.88 +} 1.89 + 1.90 + 1.91 +struct tgi_object *tgi_get_object(struct tinygi *tgi, int idx) 1.92 +{ 1.93 + return tgi->objects[idx]; 1.94 +} 1.95 + 1.96 +int tgi_get_object_count(struct tinygi *tgi) 1.97 +{ 1.98 + return dynarr_size(tgi->objects); 1.99 +} 1.100 + 1.101 +