68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
#include <SDL2/SDL.h>
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extern SDL_Renderer *sr;
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enum gradient {Blue = 0, Green = 10, Red = 20, Yellow = 30, Magenta = 40, Cyan = 50, Grey = 60} colour = 0;
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////////////////// BOARD BACKDROP COLOURS //////////////////
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int backdrop (int colour) {
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int k, l;
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int grad_tab[] = {
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0x0000cc, 0x0000bb, 0x0000aa, 0x000099, 0x000088, 0x000077, 0x000066, 0x000055, 0x000044, 0x000033, // blue
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0x00cc00, 0x00bb00, 0x00aa00, 0x009900, 0x008800, 0x007700, 0x006600, 0x005500, 0x004400, 0x003300, // green
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0xcc0000, 0xbb0000, 0xaa0000, 0x990000, 0x880000, 0x770000, 0x660000, 0x550000, 0x440000, 0x330000, // red
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0xcccc00, 0xbbbb00, 0xaaaa00, 0x999900, 0x888800, 0x777700, 0x666600, 0x555500, 0x444400, 0x333300, // yellow
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0xcc00cc, 0xbb00bb, 0xaa00aa, 0x990099, 0x880088, 0x770077, 0x660066, 0x550055, 0x440044, 0x330033, // magenta
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0x00cccc, 0x00bbbb, 0x00aaaa, 0x009999, 0x008888, 0x007777, 0x006666, 0x005555, 0x004444, 0x003333, // cyan
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0xcccccc, 0xbbbbbb, 0xaaaaaa, 0x999999, 0x888888, 0x777777, 0x666666, 0x555555, 0x444444, 0x333333 // grey
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};
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k = 0; // gradient fill
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for (int j = 0; j < 10; j++) {
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SDL_SetRenderDrawColor (sr, (grad_tab[j + colour] & 0x00ff0000) >> 16, (grad_tab[j + colour] & 0x0000ff00) >> 8, grad_tab[j + colour] & 0x000000ff, 255);
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for (int i = 0; i < 20; i++) {
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SDL_RenderDrawLine (sr, 0, k, 319, k);
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k = k + 1;
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}
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}
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k = 0; // horizontal edge light
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SDL_SetRenderDrawColor (sr, 0x99, 0x99, 0x99, 255);
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for (int i = 0; i < 16; i++) {
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SDL_RenderDrawLine (sr, k, 0, k, 199);
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k = k + 20;
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}
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k = 0; // vertical edge light
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// SDL_SetRenderDrawColor (sr, 0x99, 0x99, 0x99, 255);
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for (int i = 0; i < 10; i++) {
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SDL_RenderDrawLine (sr, 0, k, 319, k);
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k = k + 20;
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}
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k = 19; // horizontal edge dark
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SDL_SetRenderDrawColor (sr, 0x0, 0x0, 0x0, 255);
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for (int i = 0; i < 16; i++) {
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SDL_RenderDrawLine (sr, k, 0, k, 199);
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k = k + 20;
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}
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k = 19; // vertical edge dark
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// SDL_SetRenderDrawColor (sr, 0x0, 0x0, 0x0, 255);
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for (int i = 0; i < 10; i++) {
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SDL_RenderDrawLine (sr, 0, k, 319, k);
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k = k + 20;
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}
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l = 0; // corner highlight
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SDL_SetRenderDrawColor (sr, 0xff, 0xff, 0xff, 255);
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for (int j = 0; j < 10; j++) {
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k = 0;
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for (int i = 0; i < 16; i++) {
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SDL_RenderDrawPoint(sr, k, l);
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k = k + 20;
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}
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l = l + 20;
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}
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return 0;
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}
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