Do some stuff

peripherals/switches.c

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