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38 lines
1.5 KiB
38 lines
1.5 KiB
#pragma once
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#include "base.h"
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void field_init(Field* field);
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void field_init_fill(Field* field, Usz height, Usz width, Glyph fill_char);
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void field_resize_raw(Field* field, Usz height, Usz width);
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void field_deinit(Field* field);
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void field_copy_subrect(Field* src, Field* dest, Usz src_y, Usz src_x,
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Usz dest_y, Usz dest_x, Usz height, Usz width);
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void field_fill_subrect(Field* field, Usz y, Usz x, Usz height, Usz width,
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Glyph fill_char);
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Glyph field_peek(Field* field, Usz y, Usz x);
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Glyph field_peek_relative(Field* field, Usz y, Usz x, Isz offs_y, Isz offs_x);
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void field_poke(Field* field, Usz y, Usz x, Glyph glyph);
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void field_poke_relative(Field* field, Usz y, Usz x, Isz offs_y, Isz offs_x,
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Glyph glyph);
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void field_fput(Field* field, FILE* stream);
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typedef enum {
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Field_load_error_ok = 0,
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Field_load_error_cant_open_file = 1,
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Field_load_error_too_many_columns = 2,
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Field_load_error_too_many_rows = 3,
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Field_load_error_no_rows_read = 4,
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Field_load_error_not_a_rectangle = 5,
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} Field_load_error;
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Field_load_error field_load_file(char const* filepath, Field* field);
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inline Glyph gbuffer_peek_relative(Gbuffer gbuffer, Usz height, Usz width,
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Usz y, Usz x, Isz delta_y, Isz delta_x) {
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Isz y0 = (Isz)y + delta_y;
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Isz x0 = (Isz)x + delta_x;
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if (y0 < 0 || x0 < 0 || (Usz)y0 >= height || (Usz)x0 >= width)
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return '.';
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return gbuffer[(Usz)y0 * width + (Usz)x0];
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}
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