it's working! :)

bool.h

@@ -11,6 +11,6 @@
 #define TRUE	1
 #define FALSE	0
 
-typedef char bool
+typedef char bool;
 
 #endif

main.c

@@ -1,7 +1,6 @@
 #include <math.h>
 #include <stdio.h>
-#include <unistd.h>
-#include <stdint.h>
+#include <string.h>
 #include <stdlib.h>
 
 #include "termbox.h"
@@ -11,9 +10,18 @@
 
 #define STEPS	13
 
-void init ( struct term_buf buf );
-void dofire ( void );
-void draw ( void );
+typedef struct term_buf
+{
+	usize width;
+	usize height;
+	usize init_width;
+	usize init_height;
+
+	u8* tmp_buf;
+} term_buf;
+
+void init ( struct term_buf *buf );
+void dofire ( struct term_buf *term_buf );
 
 int
 main ( void )
@@ -22,86 +30,114 @@ main ( void )
 	tb_init();
 	tb_select_output_mode(TB_OUTPUT_NORMAL);
 	tb_clear();
-
 	struct term_buf buf;
-	draw_init(&buf);
 	
 	// initialize drawing
+	buf.width = tb_width();
+	buf.height = tb_height();
+	init(&buf);
 
-
-	draw();
-	dofire();
+	// animate
+	while (TRUE)
+	{
+		tb_clear();
+		dofire(&buf);
+		tb_present();
+	}
 
 	// cleanup termbox
 	tb_shutdown();
+	free(buf.tmp_buf);
 
 	return 0;
 }
 
 void
-init ( struct term_buf buf )
+init ( struct term_buf *buf )
 {
 	buf->init_width = buf->width;
 	buf->init_height = buf->height;
 
 	usize len = buf->width * buf->height;
-	buf->tmp_buf = malloc(len);
+	buf->tmp_buf = (u8*) malloc(len);
 	len -= buf->width;
 
-	if (buf->tmp_buf == NULL)
-		PRINT("fire: error: unable to malloc() memory for buffer\n");
+	if (buf->tmp_buf == NULL) {
+		PRINT("fire: cannot ");
+		perror("calloc()");
+		exit(1);
+	}
 	
 	memset(buf->tmp_buf, 0, len);
 	memset(buf->tmp_buf + len, STEPS - 1, buf->width);
 }
 
 void
-dofire ( void )
+dofire ( struct term_buf *term_buf )
 {
-	for (usize x = 0; x < width; x++)
+	static struct tb_cell fire[STEPS] =
 	{
-		for (usize y = 0; y < height; y++)
+		{' ', 9, 0}, // default
+		{0x2591, 2, 0}, // red
+		{0x2592, 2, 0}, // red
+		{0x2593, 2, 0}, // red
+		{0x2588, 2, 0}, // red
+		{0x2591, 4, 2}, // yellow
+		{0x2592, 4, 2}, // yellow
+		{0x2593, 4, 2}, // yellow
+		{0x2588, 4, 2}, // yellow
+		{0x2591, 8, 4}, // white
+		{0x2592, 8, 4}, // white
+		{0x2593, 8, 4}, // white
+		{0x2588, 8, 4}, // white
+	};
+
+	usize src;
+	usize random;
+	usize dst;
+
+	usize w = term_buf->init_width;
+	u8* tmp = term_buf->tmp_buf;
+
+	if ((term_buf->width != term_buf->init_width) || (term_buf->height != term_buf->init_height))
+	{
+		return;
+	}
+
+	struct tb_cell* buf = tb_cell_buffer();
+
+	for (usize x = 0; x < w; ++x)
+	{
+		for (usize y = 1; y < term_buf->init_height; ++y)
 		{
-			usize src = y * width + x;
-			usize random = 0;//(rand() % 7) & 3;
-			usize dest = src - random + 1;
-			usize color;
+			src = y * w + x;
+			random = ((rand() % 7) & 3);
+			dst = src - random + 1;
 
-			if (width > dest ) dest = 0;
-			else dest -= width;
-
-			color = pixels[src];
-
-			if (color == 0 || color == (usize) NULL)
-				pixels[(src - width) % ((width * height) - 1)] = palette[0];
+			if (w > dst)
+			{
+				dst = 0;
+			}
 			else
-				pixels[(dest - width) % ((width * height) - 1)] = pixels[src] - (random & 1);
-			draw();
+			{
+				dst -= w;
+			}
+
+			tmp[dst] = tmp[src] - (random & 1);
+
+			if (tmp[dst] > 12)
+			{
+				tmp[dst] = 0;
+			}
+
+			buf[dst] = fire[tmp[dst]];
+			buf[src] = fire[tmp[src]];
 		}
 	}
+
 }
 
-void
-draw ( void )
-{
-	// clear screen
-	PRINT("%c[2J", esc);
-
-	// draw pixels onto screen
-	for (usize y = 0; y < height; y++)
-	{
-		for (usize x = 0; x < width; x++)
-		{
-			usize color = pixels[y * width + x];
-			if (color == (usize) NULL) continue;
-
 			// extract RGB value from color
-			u8 blue = color % 256;
-			u8 green = ((color - blue) / 256) % 256;
-			u8 red = ((color - blue) / (int)pow((double)256, (double)2))-(green / 256);
-
-			PRINT("%c[48;2;%i;%i;%im %c[0m", esc, red, blue, green, esc);
-		}
-		PRINT("\n");
-	}
-}
+			//u8 blue = color % 256;
+			//u8 green = ((color - blue) / 256) % 256;
+			//u8 red = ((color - blue) / (int)pow((double)256, (double)2))-(green / 256);

makefile

@@ -8,9 +8,7 @@ NAME	= fire
 WARNING	= -Wall -Wextra -pedantic -Wmissing-prototypes \
 	  -Wold-style-definition -Werror
 
-SUBDIR	= sub
-
-INC	= -I$(SUBDIR)/termbox_next/
+INC	= -Isub/termbox_next/src
 
 CC	= clang
 CFLAGS	= -g -std=c99 $(WARNING) $(INC)
@@ -18,6 +16,7 @@ LDFLAGS	= -fuse-ld=lld
 
 SRC	= main.c
 OBJ	= $(SRC:.c=.o)
+TRMBOX	= sub/termbox_next/bin/termbox.a
 
 all: $(NAME)
 
@@ -28,7 +27,11 @@ clean:
 	@echo "\tCC\t\t$@"
 	@$(CC) $(CFLAGS) -c $<
 
-$(NAME): $(OBJ)
+$(TRMBOX):
+	@echo "\tCC\t\ttermbox.c"
+	@cd sub/termbox_next/ && make
+
+$(NAME): $(OBJ) $(TRMBOX)
 	@echo "\tLD\t\t$(NAME)"
 	@$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS)
 

src/main.c

@@ -1,109 +0,0 @@
-#include <math.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/ioctl.h>
-
-#define BOOL	unsigned char
-#define TRUE	1
-#define FALSE	0
-#define PRINT(...)	fprintf(stderr, __VA_ARGS__);
-
-// I miss the Rust type system :(
-typedef uint8_t		 u8;
-typedef uint16_t	u16;
-typedef uint32_t	u32;
-
-#if UINTPTR_MAX == 0xffff
-typedef uint16_t	usize;
-#elif UINTPTR_MAX == 0xffffffff
-typedef uint32_t	usize;
-#elif UINTPTR_MAX == 0xffffffffffffffff
-typedef uint64_t	usize;
-#endif
-
-
-char esc = (char) 27;
-usize width;
-usize height;
-usize palette[] = { 0x00, 0xff0000, 0xff6611, 0xffff66, 0xffffff };
-usize *pixels;
-
-void dofire ( void );
-void draw ( void );
-
-int
-main ( void )
-{
-	// populate width and height
-	struct winsize w;
-	ioctl(0, TIOCGWINSZ, &w);
-
-	width = w.ws_col;
-	height = w.ws_row;
-
-	pixels = (usize*) calloc((width * height), sizeof(usize));
-
-	// init pixels
-	for (usize c = 0; c < (width * height); c++) pixels[c] = (usize) NULL;
-	for (usize i = 0; i < width; i++)
-	{
-		pixels[((width * (height - 1)) - width) + i] = palette[4];
-	}
-
-	draw();
-	dofire();
-	return 0;
-}
-
-void
-dofire ( void )
-{
-	for (usize x = 0; x < width; x++)
-	{
-		for (usize y = 0; y < height; y++)
-		{
-			usize src = y * width + x;
-			usize random = 0;//(rand() % 7) & 3;
-			usize dest = src - random + 1;
-			usize color;
-
-			if (width > dest ) dest = 0;
-			else dest -= width;
-
-			color = pixels[src];
-
-			if (color == 0 || color == (usize) NULL)
-				pixels[(src - width) % ((width * height) - 1)] = palette[0];
-			else
-				pixels[(dest - width) % ((width * height) - 1)] = pixels[src] - (random & 1);
-			draw();
-		}
-	}
-}
-
-void
-draw ( void )
-{
-	// clear screen
-	PRINT("%c[2J", esc);
-
-	// draw pixels onto screen
-	for (usize y = 0; y < height; y++)
-	{
-		for (usize x = 0; x < width; x++)
-		{
-			usize color = pixels[y * width + x];
-			if (color == (usize) NULL) continue;
-
-			// extract RGB value from color
-			u8 blue = color % 256;
-			u8 green = ((color - blue) / 256) % 256;
-			u8 red = ((color - blue) / (int)pow((double)256, (double)2))-(green / 256);
-
-			PRINT("%c[48;2;%i;%i;%im %c[0m", esc, red, blue, green, esc);
-		}
-		PRINT("\n");
-	}
-}

type.h

@@ -10,6 +10,7 @@
 
 #ifndef TYPE_H
 #define TYPE_H
+#include <stdint.h>
 
 typedef uint8_t		 u8;
 typedef uint16_t	u16;