From bf647e430e3a3642c8199dc81a411d5e1586cabb Mon Sep 17 00:00:00 2001
From: nic-gaffney <gaffney_nic@protonmail.com>
Date: Sun, 25 Jun 2023 18:55:58 -0500
Subject: [PATCH] Standard library beginnings

---
 examples/mandelbrot.sloth | 22 ++++++-------
 std/stdio.c               | 12 +++++++
 std/stdio.sloth           |  9 +++++
 std/stdlib.c              |  5 +++
 std/stdlib.sloth          | 14 ++++++++
 std/stdmath.sloth         | 69 +++++++++++++++++++++++++++++++++++++++
 6 files changed, 120 insertions(+), 11 deletions(-)
 create mode 100644 std/stdio.c
 create mode 100644 std/stdio.sloth
 create mode 100644 std/stdlib.c
 create mode 100644 std/stdlib.sloth
 create mode 100644 std/stdmath.sloth

diff --git a/examples/mandelbrot.sloth b/examples/mandelbrot.sloth
index bc95e2f..fb22b88 100644
--- a/examples/mandelbrot.sloth
+++ b/examples/mandelbrot.sloth
@@ -1,23 +1,23 @@
-val size: int = 200;
-val maxVal: float = 4.0;
-val maxIter: int = 50;
-val plane: float = 4.0;
+val size: Int = 200;
+val maxVal: Float = 4.0;
+val maxIter: Int = 50;
+val plane: Float = 4.0;
 
 for x in 0 .. size {
     for y in 0 .. size {
-        var cReal: float = (x * plane / size) - 2;
-        var cImg: float = (y * plane / size) - 2;
-        var zReal: float = 0;
-        var zImg: float = 0;
-        var count: float = 0;
+        var cReal: Float = (x * plane / size) - 2;
+        var cImg: Float = (y * plane / size) - 2;
+        var zReal: Float = 0;
+        var zImg: Float = 0;
+        var count: Float = 0;
         while (zReal * zReal + zImg * zImg) <= maxVal && count < 4{
-            var temp: float = (zReal * zReal) - (zImg * zImg) + cReal;
+            var temp: Float = (zReal * zReal) - (zImg * zImg) + cReal;
             zImg = 2 * zReal * zImg + cImg;
             zReal = temp;
             count += 1;
         }
         if count == maxIter {
-            term_setpos(x, y);
+            termpos(x, y);
             print("*");
         }
     }
diff --git a/std/stdio.c b/std/stdio.c
new file mode 100644
index 0000000..d1bc69a
--- /dev/null
+++ b/std/stdio.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+char* readln() {
+    char* str = malloc(128);
+    scanf("%127s", str);
+    return str;
+}
+
+void print(char *str) {
+   puts(str);
+}
diff --git a/std/stdio.sloth b/std/stdio.sloth
new file mode 100644
index 0000000..c28d474
--- /dev/null
+++ b/std/stdio.sloth
@@ -0,0 +1,9 @@
+foreign fn print(str: String) Void;
+foreign fn readln() String;
+
+fn println(str: String) Void {
+	print(str);
+	print("\n");
+}
+
+
diff --git a/std/stdlib.c b/std/stdlib.c
new file mode 100644
index 0000000..b50c0c5
--- /dev/null
+++ b/std/stdlib.c
@@ -0,0 +1,5 @@
+#include <unistd.h>
+
+void wait(long long x) {
+    sleep(x);
+}
diff --git a/std/stdlib.sloth b/std/stdlib.sloth
new file mode 100644
index 0000000..7b6e2f9
--- /dev/null
+++ b/std/stdlib.sloth
@@ -0,0 +1,14 @@
+foreign fn wait(x: Int) Void;
+foreign fn print(str: String) Void;
+
+fn termpos(x: int, y: int) Void {
+    print("\x1b[");
+    print(x);
+    print(";");
+    print(y);
+    print("H");
+}
+
+fn termclear() Void {
+    print("\x1b[2J\x1b[H");
+}
diff --git a/std/stdmath.sloth b/std/stdmath.sloth
new file mode 100644
index 0000000..ebf9a7c
--- /dev/null
+++ b/std/stdmath.sloth
@@ -0,0 +1,69 @@
+foreign fn rand() Int;
+
+fn abs(x: Int) Int {
+    if x < 0 {
+        return -x;
+    }
+    return x;
+}
+
+fn fabs(x: Float) Float {
+    if x < 0 {
+        return -x;
+    }
+    return x;
+}
+
+fn max(x: Int, y: Int) Int {
+    if x > y {
+        return x;
+    }
+    return y;
+}
+
+fn min(x: Int, y: Int) Int {
+    if x < y {
+        return x;
+    }
+    return y;
+}
+
+fn fmax(x: Float, y: Float) Float {
+    if x > y {
+        return x;
+    }
+    return y;
+}
+
+fn fmin(x: Float, y: Float) Float {
+    if x < y {
+        return x;
+    }
+    return y;
+}
+
+fn pow(x: Int, y: Int) Int {
+    while y > 1 {
+        x = x*x;
+	y = y-1;
+    }
+    return x;
+}
+
+fn floor(x: Float) Float {
+    return x - abs(x % 1.0);
+}
+
+fn ceil(x: Float) Float {
+    if x < 0.0 {
+        return floor(x) - 1.0;
+    }
+    return floor(x) + 1.0;
+}
+
+fn round(x: Float) Float {
+    if fabs(x % 1.0) >= 0.5 {
+        return ceil(x);
+    }
+    return floor(x);
+}