51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/* file-handler.c
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* Created: 2023-08-25
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* Author: Aryadev Chavali
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* Description: Implementations of writing and loading state->from files
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stb/stb_image_write.h>
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#include "./lib.h"
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#define CHUNK_SIZE 1024
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bool write_to_png(state_t *state, const char *filepath)
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{
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unsigned char *image_data =
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calloc(3 * state->dwidth * state->dwidth, sizeof(*image_data));
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size_t image_ptr = 0;
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for (size_t i = 0; i < state->dwidth; ++i)
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for (size_t j = 0; j < state->dwidth; ++j, image_ptr += 3)
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{
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unsigned char colour[3] = {0};
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uint64_t sandpile = state->data[(i * state->dwidth) + j];
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if (sandpile == 0)
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colour[0] = colour[1] = colour[2] = 0;
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else if (sandpile == 1)
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colour[0] = colour[2] = 255;
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else if (sandpile == 2)
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{
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colour[0] = 255;
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colour[1] = colour[2] = 20;
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}
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else if (sandpile == 3)
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{
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colour[2] = 255;
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colour[0] = colour[1] = 20;
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}
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memcpy(image_data + image_ptr, colour, sizeof(*colour) * 3);
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}
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stbi_write_png(filepath, state->dwidth, state->dwidth, 3, image_data,
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3 * state->dwidth);
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free(image_data);
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return true;
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}
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