Moar drawing functions
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parent
56e30a0e36
commit
b58087f22c
2 changed files with 201 additions and 9 deletions
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@ -1,20 +1,23 @@
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local math = require('math')
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local paper = require('paper')
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paper.init()
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paper.clear()
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local width = paper.get_width()
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local height = paper.get_height()
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print(
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'width: ' .. paper.get_width(),
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'height: ' .. paper.get_height()
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'width: ' .. width,
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'height: ' .. height
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)
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pad_w = paper.get_width() * 0.12
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pad_h = paper.get_height() * 0.12
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for i = 1, 50 do
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x = math.random() * width
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y = math.random() * height
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r = 24 + math.ceil(math.random() * 12)
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for i = 0, 15 do
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for j = 1, 4 do
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paper.draw_line(paper.get_height() / 16 * i, j, paper.get_width(), paper.get_height() - 4 + j, i * 16)
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end
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-- paper.draw_line(0, paper.get_height(), paper.get_width(), paper.get, i * 16)
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paper.fill_circle(x, y, r, math.floor(math.random() * 0xFF))
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end
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paper.update()
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189
main/paper.h
189
main/paper.h
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@ -46,6 +46,21 @@ static int set_rotation (lua_State *L) {
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return 0;
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}
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static int draw_pixel (lua_State *L) {
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int x, y, color;
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int isnum;
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x = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `x` to be a number");
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y = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `y` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_draw_pixel(x, y, color, fb);
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return 0;
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}
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static int draw_line (lua_State *L) {
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int x1, y1, x2, y2, color;
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int isnum;
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@ -65,6 +80,170 @@ static int draw_line (lua_State *L) {
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return 0;
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}
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static int draw_hline (lua_State *L) {
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int x, y, length, color;
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int isnum;
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x = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `x` to be a number");
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y = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `y` to be a number");
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length = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `length` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_draw_hline(x, y, length, color, fb);
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return 0;
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}
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static int draw_vline (lua_State *L) {
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int x, y, length, color;
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int isnum;
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x = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `x` to be a number");
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y = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `y` to be a number");
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length = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `length` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_draw_vline(x, y, length, color, fb);
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return 0;
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}
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static int draw_circle (lua_State *L) {
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int x, y, radius, color;
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int isnum;
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x = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `x` to be a number");
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y = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `y` to be a number");
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radius = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `radius` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_draw_circle(x, y, radius, color, fb);
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return 0;
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}
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static int fill_circle (lua_State *L) {
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int x, y, radius, color;
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int isnum;
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x = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `x` to be a number");
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y = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `y` to be a number");
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radius = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `radius` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_fill_circle(x, y, radius, color, fb);
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return 0;
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}
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static int draw_rect (lua_State *L) {
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int x1, y1, x2, y2, color;
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int isnum;
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x1 = lua_tonumberx(L, -5, &isnum);
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luaL_argcheck(L, isnum, -5, "expected `x1` to be a number");
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y1 = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `y1` to be a number");
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x2 = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `x2` to be a number");
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y2 = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `y2` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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EpdRect rect = {
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.x = x1,
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.y = y1,
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.width = x2 - x1,
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.height = y2 - y1
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};
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epd_draw_rect(rect, color, fb);
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return 0;
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}
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static int fill_rect (lua_State *L) {
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int x1, y1, x2, y2, color;
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int isnum;
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x1 = lua_tonumberx(L, -5, &isnum);
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luaL_argcheck(L, isnum, -5, "expected `x1` to be a number");
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y1 = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `y1` to be a number");
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x2 = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `x2` to be a number");
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y2 = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `y2` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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EpdRect rect = {
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.x = x1,
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.y = y1,
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.width = x2 - x1,
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.height = y2 - y1
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};
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epd_fill_rect(rect, color, fb);
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return 0;
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}
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static int draw_triangle (lua_State *L) {
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int x1, y1, x2, y2, x3, y3, color;
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int isnum;
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x1 = lua_tonumberx(L, -7, &isnum);
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luaL_argcheck(L, isnum, -7, "expected `x1` to be a number");
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y1 = lua_tonumberx(L, -6, &isnum);
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luaL_argcheck(L, isnum, -6, "expected `y1` to be a number");
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x2 = lua_tonumberx(L, -5, &isnum);
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luaL_argcheck(L, isnum, -5, "expected `x2` to be a number");
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y2 = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `y2` to be a number");
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x3 = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `x3` to be a number");
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y3 = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `y3` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_draw_triangle(x1, y1, x2, y2, x3, y3, color, fb);
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return 0;
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}
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static int fill_triangle (lua_State *L) {
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int x1, y1, x2, y2, x3, y3, color;
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int isnum;
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x1 = lua_tonumberx(L, -7, &isnum);
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luaL_argcheck(L, isnum, -7, "expected `x1` to be a number");
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y1 = lua_tonumberx(L, -6, &isnum);
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luaL_argcheck(L, isnum, -6, "expected `y1` to be a number");
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x2 = lua_tonumberx(L, -5, &isnum);
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luaL_argcheck(L, isnum, -5, "expected `x2` to be a number");
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y2 = lua_tonumberx(L, -4, &isnum);
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luaL_argcheck(L, isnum, -4, "expected `y2` to be a number");
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x3 = lua_tonumberx(L, -3, &isnum);
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luaL_argcheck(L, isnum, -3, "expected `x3` to be a number");
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y3 = lua_tonumberx(L, -2, &isnum);
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luaL_argcheck(L, isnum, -2, "expected `y3` to be a number");
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color = lua_tonumberx(L, -1, &isnum);
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luaL_argcheck(L, isnum && color >= 0 && color < 256, -1, "expected `color` to be a number within [0, 255]");
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epd_fill_triangle(x1, y1, x2, y2, x3, y3, color, fb);
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return 0;
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}
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static int update (lua_State *L) {
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int temperature = 25;
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epd_poweron();
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@ -81,7 +260,17 @@ static const struct luaL_Reg paper[] = {
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{"get_height", get_height},
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{"set_rotation", set_rotation},
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{"draw_pixel", draw_pixel},
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{"draw_line", draw_line},
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{"draw_hline", draw_hline},
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{"draw_vline", draw_vline},
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{"draw_circle", draw_circle},
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{"fill_circle", fill_circle},
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{"draw_rect", draw_rect},
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{"fill_rect", fill_rect},
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{"draw_triangle", draw_triangle},
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{"fill_triangle", fill_triangle},
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{"update", update},
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{NULL, NULL},
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