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examples/sandbox/common.lc

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+FloatMin :: proc(a: float, b: float): float {
+    if (a > b) return b;
+    return a;
+}
+
+FloatMax :: proc(a: float, b: float): float {
+    if (a > b) return a;
+    return a;
+}
+
+FloatClamp :: proc(val: float, min: float, max: float): float {
+    if (val > max) return max;
+    if (val < min) return min;
+    return val;
+}
+
+IntMin :: proc(a: int, b: int): int {
+    if (a > b) return b;
+    return a;
+}
+
+IntMax :: proc(a: int, b: int): int {
+    if (a > b) return a;
+    return a;
+}
+
+IntClamp :: proc(val: int, min: int, max: int): int {
+    if (val > max) return max;
+    if (val < min) return min;
+    return val;
+}
+
+Rect2 :: struct {
+    min: Vector2;
+    max: Vector2;
+}
+
+CutLeft :: proc(r: *Rect2, value: float): Rect2 {
+    minx := r.min.x;
+    r.min.x = FloatMin(r.max.x, r.min.x + value);
+    return :Rect2{
+        {    minx, r.min.y},
+        {r.min.x, r.max.y},
+    };
+}
+
+CutRight :: proc(r: *Rect2, value: float): Rect2 {
+    maxx := r.max.x;
+    r.max.x = FloatMax(r.max.x - value, r.min.x);
+    return :Rect2{
+        {r.max.x, r.min.y},
+        {    maxx, r.max.y},
+    };
+}
+
+CutBottom :: proc(r: *Rect2, value: float): Rect2 { // Y is down
+    maxy := r.max.y;
+    r.max.y = FloatMax(r.min.y, r.max.y - value);
+    return :Rect2{
+        {r.min.x, r.max.y},
+        {r.max.x,     maxy},
+    };
+}
+
+CutTop :: proc(r: *Rect2, value: float): Rect2 { // Y is down
+    miny := r.min.y;
+    r.min.y = FloatMin(r.min.y + value, r.max.y);
+    return :Rect2{
+        {r.min.x,     miny},
+        {r.max.x, r.min.y},
+    };
+}
+
+Shrink :: proc(r: Rect2, value: float): Rect2 {
+    r.min.x += value;
+    r.max.x -= value;
+    r.min.y += value;
+    r.max.y -= value;
+    return r;
+}
+
+RectFromSize :: proc(pos: Vector2, size: Vector2): Rect2 {
+    result: Rect2 = {pos, Vector2Add(pos, size)};
+    return result;
+}
+
+GetRectSize :: proc(rect: Rect2): Vector2 {
+    result: Vector2 = {rect.max.x - rect.min.x, rect.max.y - rect.min.y};
+    return result;
+}
+
+RectToRectangle :: proc(rect: Rect2): Rectangle {
+    size := GetRectSize(rect);
+    result: Rectangle = {rect.min.x, rect.min.y, size.x, size.y};
+    return result;
+}