109 lines
3.5 KiB
C
109 lines
3.5 KiB
C
#include "v4k.h"
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enum { MAX_NPCS = 5 };
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struct player_t {
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uint64_t seen_until;
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float x,y,z,angle;
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uint32_t color;
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};
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struct npc_t {
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float x,y,z;
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uint32_t color;
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};
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struct world_t {
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struct player_t player[MAX_CLIENTS];
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struct npc_t npc[MAX_NPCS];
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} world = {0};
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void bind_netbuffers(int64_t self_id) {
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uint32_t colors[] = { ORANGE,GREEN,RED,CYAN,PURPLE,YELLOW,GRAY,PINK,AQUA };
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for (int64_t i=0; i<MAX_NPCS; ++i) {
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// as an example, let only server to set initial pos
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if (self_id==0) {
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world.npc[i].x = i*3.f + 4.f;
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}
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world.npc[i].color = colors[i%(sizeof colors / sizeof colors[0])];
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network_buffer(&world.npc[i], sizeof(struct npc_t), NETWORK_RECV, 0);
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}
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for (int64_t i=0; i<MAX_CLIENTS; ++i) {
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world.player[i].color = colors[i%(sizeof colors / sizeof colors[0])];
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network_buffer(&world.player[i], sizeof(struct player_t), i!=self_id ? NETWORK_RECV : NETWORK_SEND, i /* each client owns exactly 1 buffer */);
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};
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}
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int main() {
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// ifdef(win32, FreeConsole()); // tty_detach()
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// network setup
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network_create("127.0.0.1", 0, flag("--client") ? NETWORK_CONNECT : 0);
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int64_t self_id = network_get(NETWORK_RANK);
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bind_netbuffers(self_id);
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// game setup
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camera_t cam = camera();
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window_create( 0.35f, WINDOW_MSAA8|WINDOW_SQUARE );
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struct player_t *self = &world.player[self_id];
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// game loop
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while( window_swap() && !input(KEY_ESC) ) {
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// network sync
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char **event = network_sync(0); // timeout_ms:0
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while(*event) printf( "network event: %s\n", *event++ );
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self_id = network_get(NETWORK_RANK);
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if (network_get(NETWORK_LIVE) == 0) {
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network_create("127.0.0.1", 0, flag("--client") ? NETWORK_CONNECT|NETWORK_NOFAIL : 0);
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self_id = network_get(NETWORK_RANK);
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if (self_id != -1) {
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bind_netbuffers(self_id);
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}
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continue;
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}
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// camera tracking
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cam.position = vec3(self->x,100,self->z);
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camera_lookat(&cam, vec3(self->x,0,self->z));
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// input - move player
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float iy = input(KEY_UP) - input(KEY_DOWN);
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float ix = input(KEY_RIGHT) - input(KEY_LEFT);
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if( iy || ix ) {
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self->x += iy*window_delta()*15;
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self->z += ix*window_delta()*15;
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}
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self->seen_until = date_epoch() + 4;
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// npc - update npc movement on server-side
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if (self_id == 0) {
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for (int i = 0; i < MAX_NPCS; ++i) {
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struct npc_t *n = &world.npc[i];
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n->z = sinf(window_time())*4.f;
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}
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}
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// background - draw grid
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ddraw_grid(0);
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// foreground - draw all players
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for( int id = 0; id < MAX_CLIENTS; ++id ) {
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struct player_t *p = &world.player[id];
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if (p->seen_until < date_epoch()) continue; /* skip inactive players */
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ddraw_color( p->color );
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ddraw_capsule(vec3(p->x,0,p->z), vec3(p->x,2,p->z), 1);
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ddraw_text(vec3(p->x,4,p->z), 0.01, stringf("player #%d", id));
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}
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for( int id = 0; id < MAX_NPCS; ++id ) {
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struct npc_t *p = &world.npc[id];
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ddraw_color( p->color );
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ddraw_capsule(vec3(p->x,0,p->z), vec3(p->x,2,p->z), 1);
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ddraw_text(vec3(p->x,4,p->z), 0.01, stringf("npc #%d", id));
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}
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// stats
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char title[64];
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sprintf(title, "player #%lld", self_id);
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window_title(title);
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}
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}
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