initial commit

11 files changed, 215 insertions, 0 deletions

diff --git a/example/main b/example/main
new file mode 100755
index 0000000..3d9dbad
--- /dev/null
+++ b/example/main
diff --git a/example/main.c b/example/main.c
new file mode 100644
index 0000000..ac68bd2
--- /dev/null
+++ b/example/main.c
@@ -0,0 +1,14 @@
+#include "turtle.h"
+int main (void) {
+	if (loadmap("map") != 0 ) {
+		printf("%d",1);
+	}
+	go(3);
+	turn(LEFT);
+	go(5);
+	turn(DOWN);
+	go(7);
+	turn(RIGHT);
+	go(8);
+	return 0;
+}
diff --git a/example/main.o b/example/main.o
new file mode 100644
index 0000000..6b6b172
--- /dev/null
+++ b/example/main.o
diff --git a/example/makefile b/example/makefile
new file mode 100644
index 0000000..8fe13ba
--- /dev/null
+++ b/example/makefile
@@ -0,0 +1,6 @@
+main : main.o
+	gcc main.o -o main -L../ -lturtle
+main.o : main.c
+	gcc -c main.c 
+clean :
+	rm main.o main
diff --git a/example/map b/example/map
new file mode 100644
index 0000000..129f8d0
--- /dev/null
+++ b/example/map
@@ -0,0 +1,21 @@
+..,.,.,...,.,.,.,.,,
+,.########..,.,..,,.
+..#,,,,.,#,...,.,,.,
+,.#..,$.,#.,.,.,.,..
+..#.,.,.,#,,,...,,.,
+..####,##########..,
+,,,,.#.#.,.....,#,,,
+,,,..#,#,.#####.#.,.
+,,,,.#.#,.#,,,,,#...
+..####.#..#.#####,,,
+..#,.,.,.,#,.,..#.,.
+..#############.#.,.
+,##,.,.,.,.,....#,.,
+,#....,,,,......#,,,
+.#...,,,,.,.,,..#...
+,#......,.,.,.,.#..,
+,#########.,#####,,.
+.....,,,.......,...,
+....,..,.,.,.,,.,.,.
+....,,,,,...,.,.,.,.
+
diff --git a/libturtle.a b/libturtle.a
new file mode 100644
index 0000000..e720d94
--- /dev/null
+++ b/libturtle.a
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..e5f106f
--- /dev/null
+++ b/makefile
@@ -0,0 +1,14 @@
+main : libturtle.a
+libturtle.a : turtle.o
+	ar ru libturtle.a turtle.o
+	ranlib libturtle.a
+turtle.o : turtle.c
+	gcc -c turtle.c
+clean :
+	rm turtle.o libturtle.a
+install:
+	cp turtle.h /usr/include
+	cp libturtle.a /lib
+uninstall:
+	rm /usr/include/turtle.h
+	rm /lib/libturtle.a
diff --git a/map b/map
new file mode 100644
index 0000000..129f8d0
--- /dev/null
+++ b/map
@@ -0,0 +1,21 @@
+..,.,.,...,.,.,.,.,,
+,.########..,.,..,,.
+..#,,,,.,#,...,.,,.,
+,.#..,$.,#.,.,.,.,..
+..#.,.,.,#,,,...,,.,
+..####,##########..,
+,,,,.#.#.,.....,#,,,
+,,,..#,#,.#####.#.,.
+,,,,.#.#,.#,,,,,#...
+..####.#..#.#####,,,
+..#,.,.,.,#,.,..#.,.
+..#############.#.,.
+,##,.,.,.,.,....#,.,
+,#....,,,,......#,,,
+.#...,,,,.,.,,..#...
+,#......,.,.,.,.#..,
+,#########.,#####,,.
+.....,,,.......,...,
+....,..,.,.,.,,.,.,.
+....,,,,,...,.,.,.,.
+
diff --git a/turtle.c b/turtle.c
new file mode 100644
index 0000000..8dfeafc
--- /dev/null
+++ b/turtle.c
@@ -0,0 +1,112 @@
+#include "turtle.h"
+/*assigns initial values to turtle position*/
+int tx = 0;
+int ty = 0;
+int td = UP;
+/*loads a map from a 20x20 ascii plaintext file excluding newlines*/
+/* returns any io errors*/
+/*returns 0 on sucess */
+int loadmap(char * filename) {
+	/*file of the map to load*/
+	FILE * mapfile = fopen(filename,"r");
+	if (mapfile == NULL) {
+		printf("error loading map file\n");
+		return -1;
+	}
+	for (int yi = 0; yi < 20; yi++) {
+		for (int xi = 0; xi < 20; xi++) {
+			map[xi][yi] = fgetc(mapfile);
+			if (map[xi][yi] == EOF) {
+				return EOF;
+			}
+		}
+		/*to account for newlines*/
+		fgetc(mapfile);
+	}
+	printmap();
+	return 0;
+}
+/*moves the turtle, will keep moving until either blocks runs out or it can't
+ * moveforwards anymore, only non '#' chars can be moveable*/
+void go(int blocks){
+	/*position of blocks to move to*/
+	unsigned int mx, my;
+	for (int i = 0; i < blocks; i++) {
+		switch (td) {
+			/*using modulus to wrap them around*/
+			case UP:
+				mx = (tx)%20;
+				my = (ty - 1)%20;
+			break;
+			case DOWN:
+				mx = (tx)%20;
+				my = (ty + 1)%20;
+			break;
+			case LEFT:
+				mx = (tx + 1)%20;
+				my = (ty)%20;
+			break;
+			case RIGHT:
+				mx = (tx - 1)%20;
+				my = (ty)%20;
+			break;
+		}
+		/*keeps turtle in the boundaries of the map*/
+		if(mx < 0) {
+			mx = 0;
+		}
+		if(mx >= 20) {
+			mx = 19;
+		}
+		if(my < 0) {
+			my = 0;
+		}
+		if(my >= 20) {
+			my = 19;
+		}
+		if (map[mx][my] != '#') {
+			tx = mx;
+			ty = my;
+		}
+		printmap();
+		/*victory screen*/
+		if (map[tx][ty] == '$') {
+			printf("YOU WON! CONGRATS!\n");
+		}
+		sleep(1);
+	}
+}
+/*sets the irction, no sanity checking*/
+void turn(int direction){
+	td = direction;
+	printmap();
+	sleep(1);
+	return;
+}
+void printmap() {
+	/*terminal escape code to move cursor to 0,0*/
+	printf("\033[1;1H");
+	for (int yi = 0; yi < 20; yi++) {
+		for (int xi = 0; xi < 20; xi++) {
+			if ((yi == ty) && (xi == tx)){
+				switch (td) {
+					case UP:
+						printf("\033[32m^\033[37m");
+					break;
+					case DOWN:
+						printf("\033[32mV\033[37m");
+					break;
+					case LEFT:
+						printf("\033[32m>\033[37m");
+					break;
+					case RIGHT:
+						printf("\033[32m<\033[37m");
+					break;
+				}
+			} else {
+				printf("%c",map[xi][yi]);
+			}
+		}
+		printf("\n");
+	}
+}
diff --git a/turtle.h b/turtle.h
new file mode 100644
index 0000000..bac9557
--- /dev/null
+++ b/turtle.h
@@ -0,0 +1,27 @@
+#ifndef TURTLE_H
+#define TURTLE_H
+/*directions, CCwise like on a coordinate plane */
+#include<stdio.h>
+#include<unistd.h>
+#define RIGHT 0
+#define UP 1
+#define LEFT 2
+#define DOWN 3
+/* map everything is held in
+ */
+char map[20][20];
+/*turtle positions */
+extern int tx;
+extern int ty;
+/*turtle direction*/
+extern int td;
+/* loads map from file, returns any IO errors, assumes map is 20x20 ascii
+ * chars
+ * this does the first printing of the screen
+ */
+extern int loadmap(char * filename);
+/*movement of the turtle*/
+extern void go(int blocks);
+extern void turn(int direction);
+void printmap();
+#endif
diff --git a/turtle.o b/turtle.o
new file mode 100644
index 0000000..1236ea0
--- /dev/null
+++ b/turtle.o