114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
#include "SDL_mouse.h"
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#include "aliases/aliases.h"
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#include "drawing.h"
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_events.h>
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#include <SDL2/SDL_render.h>
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#include <SDL2/SDL_video.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#define WINDOW_WIDTH 1280
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#define WINDOW_HEIGHT 720
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typedef struct state state_t;
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struct state {
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i32 mouse_x;
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i32 mouse_y;
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i32 current_origin_x;
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i32 current_origin_y;
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bool running;
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bool drawing;
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arrows_t arrows;
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arrow_t tmp_arrow;
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};
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int main(void) {
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SDL_Init(SDL_INIT_EVERYTHING);
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SDL_Window *window =
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SDL_CreateWindow("Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
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WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN);
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SDL_Renderer *renderer = SDL_CreateRenderer(
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window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
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state_t st = {
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.mouse_x = -1,
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.mouse_y = -1,
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.current_origin_x = -1,
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.current_origin_y = -1,
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.running = true,
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.drawing = false,
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.arrows = {0},
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.tmp_arrow = {0},
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};
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SDL_Event event = {0};
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if (!init_arrows_default(&(st.arrows))) {
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return EXIT_FAILURE;
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}
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while (st.running) {
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while (SDL_PollEvent(&event)) {
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switch (event.type) {
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case SDL_QUIT:
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st.running = false;
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break;
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case SDL_MOUSEBUTTONUP:
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if (event.button.button == SDL_BUTTON_LEFT) {
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if (st.drawing) {
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add_arrow(&(st.arrows), st.tmp_arrow);
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st.tmp_arrow = (arrow_t){0};
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st.drawing = false;
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} else {
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st.current_origin_x = event.button.x;
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st.current_origin_y = event.button.y;
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st.drawing = true;
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}
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} else if (event.button.button == SDL_BUTTON_RIGHT) {
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st.current_origin_x = -1;
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st.current_origin_y = -1;
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st.drawing = false;
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}
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break;
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case SDL_MOUSEMOTION:
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st.mouse_x = event.motion.x;
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st.mouse_y = event.motion.y;
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break;
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}
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}
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SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
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SDL_RenderClear(renderer);
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if (st.drawing) {
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st.tmp_arrow.origin = (point_t){st.current_origin_x, st.current_origin_y};
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st.tmp_arrow.direction = (vec2_t){st.mouse_x - st.current_origin_x,
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st.mouse_y - st.current_origin_y};
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draw_arrow(renderer, &(st.tmp_arrow), (colour_t){.abgr = 0xff0000ff});
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}
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draw_arrows(renderer, &(st.arrows), (colour_t){.abgr = 0xff000000});
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SDL_RenderPresent(renderer);
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}
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SDL_DestroyRenderer(renderer);
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SDL_DestroyWindow(window);
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SDL_Quit();
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return EXIT_SUCCESS;
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}
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