149 lines
4.4 KiB
C
149 lines
4.4 KiB
C
#include "font.h"
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#include "field.h"
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#include "text.h"
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#include "picture.h"
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#include "platform.h"
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#include "types.h"
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#include <stdio.h>
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#include <inttypes.h>
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#include <SDL3/SDL.h>
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int main() {
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int w = 1280, h = 720;
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if (!SDL_Init(SDL_INIT_VIDEO)) {
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fprintf(stderr, "Can't init: %s\n", SDL_GetError());
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return -1;
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}
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SDL_Window *window = SDL_CreateWindow("xormod", w, h, ACCEL_PLATFORM | SDL_WINDOW_RESIZABLE);
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if (window == NULL) {
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fprintf(stderr, "Can't open window: %s\n", SDL_GetError());
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return -1;
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}
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SDL_GetWindowSize(window, &w, &h);
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SDL_Renderer *rend = SDL_CreateRenderer(window, NULL);
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Field f;
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Field_init(&f, w, h);
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int dragging = 0;
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Uint64 last = SDL_GetTicks();
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int running = 1;
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int fullscreen = 0;
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int vsync = 0;
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double avg_delta = 0;
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SDL_SetRenderVSync(rend, vsync);
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#ifdef NDEBUG
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int debug = 0;
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#else
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int debug = 1;
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#endif
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while (running) {
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Uint64 ticks = SDL_GetTicks();
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Uint64 delta = ticks - last;
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last = ticks;
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avg_delta = 0.75 * avg_delta + 0.25 * (double) delta;
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int speed = (int)(16 * avg_delta / 16.667); // 16 pixels per update @ 60 fps
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const bool *keys = SDL_GetKeyboardState(NULL);
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if (keys[SDL_SCANCODE_LEFT] || keys[SDL_SCANCODE_A]) {
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f.offset.x -= speed;
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}
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if (keys[SDL_SCANCODE_RIGHT] || keys[SDL_SCANCODE_D]) {
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f.offset.x += speed;
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}
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if (keys[SDL_SCANCODE_UP] || keys[SDL_SCANCODE_W]) {
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f.offset.y -= speed;
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}
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if (keys[SDL_SCANCODE_DOWN] || keys[SDL_SCANCODE_S]) {
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f.offset.y += speed;
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}
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SDL_Event event;
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while (SDL_PollEvent(&event)) {
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switch (event.type) {
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case SDL_EVENT_QUIT: running = 0; break;
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case SDL_EVENT_WINDOW_RESIZED: {
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w = event.window.data1;
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h = event.window.data2;
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Field_resize(&f, w, h);
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break;
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}
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case SDL_EVENT_KEY_DOWN: {
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if (event.key.repeat) break;
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switch (event.key.key) {
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case SDLK_ESCAPE:
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case SDLK_Q: running = 0; break;
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case SDLK_G: debug ^= 1; break;
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case SDLK_F: SDL_SetWindowFullscreen(window, fullscreen ^= 1); break;
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case SDLK_V: SDL_SetRenderVSync(rend, vsync ^= 1); break;
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}
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SDL_HideCursor();
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break;
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}
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case SDL_EVENT_MOUSE_BUTTON_DOWN:
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case SDL_EVENT_MOUSE_BUTTON_UP: {
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dragging = event.button.down;
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break;
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}
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case SDL_EVENT_MOUSE_MOTION: {
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if (dragging) {
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f.offset.x -= event.motion.xrel;
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f.offset.y -= event.motion.yrel;
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} else {
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SDL_ShowCursor();
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}
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break;
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}
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}
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}
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Field_scroll(&f);
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Field_draw(&f, rend);
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if (debug) {
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char buf[72];
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SDL_SetRenderDrawColor(rend, 0, 0, 0, 255);
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SDL_RenderFillRect(rend, &(SDL_FRect) {
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0, 0, sizeof(buf)*font_w, 8*font_h
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});
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draw_text(rend, ACCEL_PLATFORM_STR, sizeof(ACCEL_PLATFORM_STR), RC(1,1), 255, 255, 255);
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size_t len = snprintf(buf, sizeof(buf),
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"off.x: %d, off.y: %d, vsync: %s, \xEBT: %.3f, %.1fFPS, speed: %02d",
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f.offset.x, f.offset.y, vsync ? "ON" : "OFF", avg_delta, 1000.0 / avg_delta, speed);
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draw_text(rend, buf, len, RC(2, 1), 255, 255, 255);
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char *q[] = {"TL", "TR", "BL", "BR"};
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for (int i = 0; i < 4; i++) {
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Picture *p = f.pics[i];
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len = snprintf(buf, sizeof(buf), "%s \xB3 x: %05d, y: %05d, w: %d, h: %d, p: %p",
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q[i], p->x, p->y, p->w, p->h, p);
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draw_text(rend, buf, len, RC(3+i, 1), 255, 255, 255);
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}
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}
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SDL_RenderPresent(rend);
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if (!vsync && avg_delta < 8.0) {
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SDL_Delay(8.0 - avg_delta);
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}
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}
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SDL_DestroyRenderer(rend);
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SDL_DestroyWindow(window);
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SDL_Quit();
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return 0;
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}
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