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authoruntir_l <87096069+untir-l@users.noreply.github.com>2022-02-18 14:05:08 +0000
committeruntir-l <87096069+untir-l@users.noreply.github.com>2022-02-25 09:56:49 +0000
commit581bc2dd768ca0af390b9abb41a5c89f1bca19e3 (patch)
tree2b8ef613b6448099852c9bf3487915c13d3ceea7 /hitomezashi.c
parent1bc2a436583b0e898decf13e695a1908a894a38c (diff)
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Reorganise CLI and lib into separate dirs, add doc comments for Doxygen
Diffstat (limited to 'hitomezashi.c')
-rw-r--r--hitomezashi.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/hitomezashi.c b/hitomezashi.c
deleted file mode 100644
index 09feb11..0000000
--- a/hitomezashi.c
+++ /dev/null
@@ -1,86 +0,0 @@
-#include "hitomezashi.h"
-#include "SDL.h"
-#include <assert.h>
-
-SDL_Color HITOMEZASHI_FG_COLOUR = {.r = 0, .g = 0, .b = 0};
-SDL_Color HITOMEZASHI_BG_COLOUR = {.r = 255, .g = 255, .b = 255};
-
-enum Hitomezashi_State_Init_Result
-hitomezashi_state_init(struct Hitomezashi_State *state, int x_pattern_len,
- int y_pattern_len, char *x_pattern, char *y_pattern,
- int gap, int line_thickness) {
- assert(x_pattern_len >= 0);
- assert(y_pattern_len >= 0);
- assert(gap >= 0);
- assert(line_thickness > 0);
-
- state->y_pattern_len = y_pattern_len;
- state->x_pattern_len = x_pattern_len;
- state->x_pattern = x_pattern;
- state->y_pattern = y_pattern;
- state->gap = gap;
- state->line_thickness = line_thickness;
- state->output_width = x_pattern_len * gap;
- state->output_height = y_pattern_len * gap;
-
- state->surface = SDL_CreateRGBSurface(0, state->output_width,
- state->output_height, 32, 0, 0, 0, 0);
- if (!state->surface) {
- return Hitomezashi_State_Init_Result_Err_Create_Surface;
- }
- return Hitomezashi_State_Init_Result_Success;
-}
-
-enum Hitomezashi_Draw_Result hitomezashi_draw(struct Hitomezashi_State *state) {
- if (SDL_LockSurface(state->surface) != 0) {
- return Hitomezashi_Draw_Result_Err_Lock_Surface;
- }
-
- Uint32 bg_colour =
- SDL_MapRGB(state->surface->format, HITOMEZASHI_BG_COLOUR.r,
- HITOMEZASHI_BG_COLOUR.g, HITOMEZASHI_BG_COLOUR.b);
- Uint32 fg_colour =
- SDL_MapRGB(state->surface->format, HITOMEZASHI_FG_COLOUR.r,
- HITOMEZASHI_FG_COLOUR.g, HITOMEZASHI_FG_COLOUR.b);
-
- SDL_FillRect(state->surface, NULL, bg_colour);
-
- SDL_Rect rect;
- // Draw y pattern (horizontal) lines
- for (int i = 0; i < state->y_pattern_len; ++i) {
- for (int j = 0; j < state->x_pattern_len; ++j) {
- if (j % 2 == state->y_pattern[i]) {
- rect.x = j * state->gap;
- rect.y = i * state->gap;
- rect.w = state->gap;
- rect.h = state->line_thickness;
- SDL_FillRect(state->surface, &rect, fg_colour);
- }
- }
- }
- // Draw x pattern (vertical) lines
- for (int i = 0; i < state->x_pattern_len; ++i) {
- for (int j = 0; j < state->y_pattern_len; ++j) {
- if (j % 2 == state->x_pattern[i]) {
- rect.x = i * state->gap;
- rect.y = j * state->gap;
- rect.w = state->line_thickness;
- rect.h = state->gap;
- SDL_FillRect(state->surface, &rect, fg_colour);
- }
- }
- }
- // Join up the lines to avoid leaving holes at the intersections
- for (int x = state->gap; x < state->output_width; x += state->gap) {
- for (int y = state->gap; y < state->output_height; y += state->gap) {
- rect.x = x;
- rect.y = y;
- rect.w = state->line_thickness;
- rect.h = state->line_thickness;
- SDL_FillRect(state->surface, &rect, fg_colour);
- }
- }
-
- SDL_UnlockSurface(state->surface);
- return Hitomezashi_Draw_Result_Success;
-}