105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
//
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// Created by bruno on 17.2.2025.
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//
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#include "switches.h"
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void generate_switch_rects(Switches *switches) {
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int switch_width = switches->rect->w / 4;
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int switch_height = switches->rect->h / 4;
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for (int row = 0; row < 4; row++) {
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for (int col = 0; col < 4; col++) {
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int idx = row * 4 + col;
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// Base rect inside switches->rect
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switches->rects[idx] = (SDL_Rect) {
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col * switch_width + 2,
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row * switch_height + 2,
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switch_width - 2,
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switch_height - 2
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};
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// Rect relative to outRect
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switches->outRects[idx] = (SDL_Rect) {
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switches->outRect->x + col * switch_width + 2,
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switches->outRect->y + row * switch_height + 2,
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switch_width - 2,
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switch_height - 2
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};
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}
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}
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}
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void render_switch_matrix(SDL_Renderer *renderer, Switches *switches) {
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SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
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SDL_RenderClear(renderer);
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for (int i = 0; i < 16; i++) {
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if (switches->value & (1 << i)) {
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SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255);
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} else {
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// Render black for "off" switches
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SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
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}
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SDL_RenderFillRect(renderer, &switches->rects[i]);
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}
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}
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void toggle_switch(SDL_Rect rect, Switches *switches) {
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for (int i = 0; i < 16; i++) {
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if (SDL_HasIntersection(&rect, &switches->outRects[i])) {
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switches->value ^= (1 << i);
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}
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}
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}
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void update_switches_texture(SDL_Renderer *renderer, Switches *display) {
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SDL_SetRenderTarget(renderer, display->texture);
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render_switch_matrix(renderer, display); // Render the 4x4 switch matrix
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SDL_SetRenderTarget(renderer, NULL);
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}
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void init_switches(Switches *switches, SDL_Renderer *renderer, int x, int y, int width, int height) {
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switches->rect = malloc(sizeof(SDL_Rect));
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switches->outRect = malloc(sizeof(SDL_Rect));
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switches->value = 0;
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switches->rect->x = 0;
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switches->rect->y = 0;
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switches->rect->w = width;
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switches->rect->h = height;
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switches->outRect->x = x;
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switches->outRect->y = y;
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switches->outRect->w = width;
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switches->outRect->h = height;
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switches->texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, width, height);
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if (!switches->texture) {
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fprintf(stderr, "Failed to create texture: %s\n", SDL_GetError());
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exit(EXIT_FAILURE);
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}
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switches->value = (1 << 0) | (1 << 1);
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generate_switch_rects(switches);
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update_switches_texture(renderer, switches);
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}
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void render_switches_segment(Switches *display, SDL_Renderer *renderer) {
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if (display->oldValue != display->value) {
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display->oldValue = display->value;
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update_switches_texture(renderer, display);
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}
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if (display->texture) {
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SDL_RenderCopy(renderer, display->texture, NULL, display->outRect);
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}
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}
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void destroy_switches_segment(Switches *switches) {
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SDL_DestroyTexture(switches->texture);
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free(switches->rect);
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free(switches->outRect);
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} |