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Use defines to abstract font choice. 

Clunky but now you only have to change the font name four time in one
place rather than N times in N places, eh?

Writing C again for the first time in ages (this and the Joy
interpreter) the using the preprocessor is like stone-age
meta-programming, from the lens of lisp it's like, "you do what to your
source code?".
This commit is contained in:
Simon Forman 2023-02-28 07:14:33 -08:00
parent 144e73ebc3
commit 5423e0b239
1 changed files with 18 additions and 13 deletions
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31
implementations/uvm-ncc/xerblin.c
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@ -4,6 +4,11 @@
#include "/home/sforman/src/Joypy/implementations/uvm-ncc/font/font.h"
#include "/home/sforman/src/Joypy/implementations/uvm-ncc/graphics.h"
#define font_data font_PublicPixel_22_data
#define font_width font_PublicPixel_22_width
#define font_height font_PublicPixel_22_height
#define font_numchars font_PublicPixel_22_number_of_characters
size_t FRAME_WIDTH = 768;
size_t FRAME_HEIGHT = 512;
u32 frame_buffer[393216];
@ -19,19 +24,19 @@ void
draw_char(u8 ch, u64 dest_x, u64 dest_y)
{
// Check the inputs.
if (ch < 0 || ch > font_PublicPixel_22_number_of_characters
|| dest_x < 0 || dest_x >= (FRAME_WIDTH - font_PublicPixel_22_width)
|| dest_y < 0 || dest_y >= (FRAME_HEIGHT - font_PublicPixel_22_height))
if (ch < 0 || ch > font_numchars
|| dest_x < 0 || dest_x >= (FRAME_WIDTH - font_width)
|| dest_y < 0 || dest_y >= (FRAME_HEIGHT - font_height))
// No error message or anything, just decline to draw.
return;
carefree_alpha_blend_blit(
frame_buffer,
font_PublicPixel_22_data[ch],
font_data[ch],
FRAME_WIDTH,
dest_x,
dest_y,
font_PublicPixel_22_width,
font_PublicPixel_22_height
font_width,
font_height
);
}
@ -73,8 +78,8 @@ keydown(u64 window_id, u16 keycode)
void
mousedown(u64 window_id, u8 btn_id)
{
u8 ch = rand() % font_PublicPixel_22_number_of_characters;
draw_char(ch, pos_x - font_PublicPixel_22_width, pos_y - font_PublicPixel_22_height);
u8 ch = rand() % font_numchars;
draw_char(ch, pos_x - font_width, pos_y - font_height);
window_draw_frame(window_id, frame_buffer);
}
@ -94,15 +99,15 @@ main()
init_font_data();
wid = window_create(FRAME_WIDTH, FRAME_HEIGHT, "Xerblin", 0);
draw_background(frame_buffer, FRAME_WIDTH, FRAME_HEIGHT);
for (size_t ch = 0; ch < font_PublicPixel_22_number_of_characters; ++ch) {
for (size_t ch = 0; ch < font_numchars; ++ch) {
draw_char(
ch,
128 + (ch % 26) * font_PublicPixel_22_width,
128 + (ch / 26) * font_PublicPixel_22_height
128 + (ch % 26) * font_width,
128 + (ch / 26) * font_height
);
}
u64 w = 3 + 26 * font_PublicPixel_22_width;
u64 h = 4 + 4 * font_PublicPixel_22_height;
u64 w = 3 + 26 * font_width;
u64 h = 4 + 4 * font_height;
carefree_draw_box(frame_buffer, FRAME_WIDTH, 126, 126, w, h, WHITE);
w = 200;
carefree_wu_line(frame_buffer, FRAME_WIDTH, 0, 0, FRAME_WIDTH, FRAME_HEIGHT-1, WHITE);