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/* #include <stdio.h> */
#include <math.h>
#include <SDL2/SDL.h>
#include "sim.h"
#include "draw.h"
#include "types.h"
#define MOUSE_LOCK 0
float hfov, vfov;
float PI;
Camera cam;
uint fps = 30;
SDL_Window *win;
void *ren;
typedef struct{
SDL_Keymod mod;
SDL_Keycode sym;
void (*func)(const Arg *);
const Arg arg;
} Key;
int
main_init()
{
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "%s:%d:main_init() error %s", __FILE__, __LINE__, SDL_GetError());
return 1;
}
win = SDL_CreateWindow("3D Sim",
SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
2*w, 2*h, SDL_WINDOW_RESIZABLE);
if (win == NULL) {
fprintf(stderr, "%s:%d:main_init() error %s", __FILE__, __LINE__, SDL_GetError());
return 1;
}
ren = SDL_CreateRenderer(win, -1, 0);
if (ren == NULL) {
fprintf(stderr, "%s:%d:main_init() error %s", __FILE__, __LINE__, SDL_GetError());
return 1;
}
SDL_RenderSetLogicalSize(ren, w, h);
/* SDL_RenderSetScale(ren, 2, 2); */
if (draw_init())
return 1;
return 0;
}
int
main_quit()
{
SDL_DestroyWindow(win);
SDL_Quit();
return 1;
}
int
main_event()
{
static SDL_Event event;
static uint inp = MOUSE_LOCK * 1024;
static double s = 0.5;
uint8 q = 0;
while(SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
q = 1;
break;
case SDL_KEYDOWN:
if (event.key.keysym.sym == SDLK_q)
q = 1;
switch (event.key.keysym.sym) {
case SDLK_w: inp |= 1; break;
case SDLK_s: inp |= 2; break;
case SDLK_a: inp |= 4; break;
case SDLK_d: inp |= 8; break;
case SDLK_RIGHT: inp |= 16; break;
case SDLK_LEFT: inp |= 32; break;
case SDLK_UP: inp |= 64; break;
case SDLK_DOWN: inp |= 128; break;
case SDLK_j: inp |= 256; break;
case SDLK_k: inp |= 512; break;
case SDLK_m: inp ^= 1024; break;
case SDLK_i: add_obj_interactive(); break;
case SDLK_r: redo_obj(); break;
case SDLK_t: drawlines ^= 1; break;
case SDLK_EQUALS: s += 0.1; break;
case SDLK_MINUS: s -= 0.1; break;
}
break;
case SDL_KEYUP:
switch (event.key.keysym.sym) {
case SDLK_w: inp &= (inp^1); break;
case SDLK_s: inp &= (inp^2); break;
case SDLK_a: inp &= (inp^4); break;
case SDLK_d: inp &= (inp^8); break;
case SDLK_RIGHT: inp &= (inp^16); break;
case SDLK_LEFT: inp &= (inp^32); break;
case SDLK_UP: inp &= (inp^64); break;
case SDLK_DOWN: inp &= (inp^128); break;
case SDLK_j: inp &= (inp^256); break;
case SDLK_k: inp &= (inp^512); break;
}
break;
case SDL_MOUSEMOTION:
if (~inp & 1024) break;
cam.azim -= ((float)event.motion.yrel)/25.0;
cam.rad += ((float)event.motion.xrel)/25.0;
break;
}
}
if (inp&1024)
SDL_SetRelativeMouseMode(SDL_TRUE);
else
SDL_SetRelativeMouseMode(SDL_FALSE);
if (inp&1) {
cam.pos.x += cos(cam.rad) * s;
cam.pos.z += sin(cam.rad) * s;
}
if (inp&2) {
cam.pos.x -= cos(cam.rad) * s;
cam.pos.z -= sin(cam.rad) * s;
}
if (inp&4) {
cam.pos.x += sin(cam.rad) * s;
cam.pos.z -= cos(cam.rad) * s;
}
if (inp&8) {
cam.pos.x -= sin(cam.rad) * s;
cam.pos.z += cos(cam.rad) * s;
}
if (inp&256) cam.pos.y -= s;
if (inp&512) cam.pos.y += s;
if (inp&16)
cam.rad += 0.05;
if (inp&32)
cam.rad -= 0.05;
if (inp&64)
cam.azim += 0.05;
if (inp&128)
cam.azim -= 0.05;
if (cam.azim < 0)
cam.azim += 2.0 * PI;
if (cam.azim > 2.0 * PI)
cam.azim -= 2.0 * PI;
if (cam.rad < 0)
cam.rad += 2.0 * PI;
if (cam.rad > 2.0 * PI)
cam.rad -= 2.0 * PI;
if (q)
return main_quit();
if (draw_screen())
return 1;
return 0;
}
int main(int argc, char *argv[])
{
Uint32 ltick, fdif;
cam.pos.x = cam.pos.z = 0;
cam.pos.y = 10;
cam.rad = cam.azim = 0;
PI = 4.0 * atan(1);
h = 288;
w = 384;
hfov = 1;
if (main_init())
return 1;
vfov = 0.75;
fdif = 1000 / fps;
while (1) {
ltick = SDL_GetTicks();
if (main_event())
break;
ltick = SDL_GetTicks() - ltick;
if (ltick < fdif)
SDL_Delay(fdif - ltick);
}
return 0;
}
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