all: update @Fabs to @abs and fix one type error (#38)

* fabs to abs

src/algorithms/brezenham.zig

@@ -9,7 +9,7 @@ pub fn process(start: [2]f32, end: [2]f32) ![][2]f32 {
     var x2 = end[0];
     var y2 = end[1];
 
-    const steep = @fabs(y2 - y1) > @fabs(x2 - x1);
+    const steep = @abs(y2 - y1) > @abs(x2 - x1);
     if (steep) {
         std.mem.swap(f32, &x1, &y1);
         std.mem.swap(f32, &x2, &y2);
@@ -21,7 +21,7 @@ pub fn process(start: [2]f32, end: [2]f32) ![][2]f32 {
     }
 
     const dx: f32 = x2 - x1;
-    const dy: f32 = @fabs(y2 - y1);
+    const dy: f32 = @abs(y2 - y1);
 
     var err: f32 = dx / 2.0;
     var ystep: i32 = if (y1 < y2) 1 else -1;

src/deps/zig-gamedev/zmath/src/zmath.zig

@@ -1346,7 +1346,7 @@ pub inline fn sqrt(v: anytype) @TypeOf(v) {
 }
 
 pub inline fn abs(v: anytype) @TypeOf(v) {
-    return @fabs(v); // load, andps
+    return @abs(v); // load, andps
 }
 
 pub inline fn select(mask: anytype, v0: anytype, v1: anytype) @TypeOf(v0, v1) {
@@ -3612,7 +3612,7 @@ test "zmath.sincos32" {
 }
 
 fn asin32(v: f32) f32 {
-    const x = @fabs(v);
+    const x = @abs(v);
     var omx = 1.0 - x;
     if (omx < 0.0) {
         omx = 0.0;
@@ -3666,7 +3666,7 @@ test "zmath.asin32" {
 }
 
 fn acos32(v: f32) f32 {
-    const x = @fabs(v);
+    const x = @abs(v);
     var omx = 1.0 - x;
     if (omx < 0.0) {
         omx = 0.0;
@@ -3721,7 +3721,7 @@ test "zmath.acos32" {
 
 pub fn modAngle32(in_angle: f32) f32 {
     const angle = in_angle + math.pi;
-    var temp: f32 = @fabs(angle);
+    var temp: f32 = @abs(angle);
     temp = temp - (2.0 * math.pi * @as(f32, @floatFromInt(@as(i32, @intFromFloat(temp / math.pi)))));
     temp = temp - math.pi;
     if (angle < 0.0) {

src/editor/artboard/flipbook/canvas.zig

@@ -99,7 +99,7 @@ pub fn draw(file: *pixi.storage.Internal.Pixi) void {
         const src_x = column * tile_width;
         const src_y = row * tile_height;
 
-        const sprite_scale = std.math.clamp(0.5 / @fabs(@as(f32, @floatFromInt(i)) + (file.flipbook_scroll / tile_width / 1.1)), 0.5, 1.0);
+        const sprite_scale = std.math.clamp(0.5 / @abs(@as(f32, @floatFromInt(i)) + (file.flipbook_scroll / tile_width / 1.1)), 0.5, 1.0);
         const src_rect: [4]f32 = .{ src_x, src_y, tile_width, tile_height };
         var dst_x: f32 = canvas_center_offset[0] + file.flipbook_scroll + @as(f32, @floatFromInt(i)) * tile_width * 1.1 - (tile_width * sprite_scale / 2.0);
         var dst_y: f32 = canvas_center_offset[1] + ((1.0 - sprite_scale) * (tile_height / 2.0));

src/editor/explorer/tools.zig

@@ -59,7 +59,7 @@ pub fn draw() void {
                 pixi.state.colors.height = @as(u8, @intCast(std.math.clamp(height, 0, 255)));
             }
         } else {
-            var primary: [4]f32 = if (pixi.state.tools.current == .heightmap) .{} else .{
+            var primary: [4]f32 = if (pixi.state.tools.current == .heightmap) .{255,255,255,255} else .{
                 @as(f32, @floatFromInt(pixi.state.colors.primary[0])) / 255.0,
                 @as(f32, @floatFromInt(pixi.state.colors.primary[1])) / 255.0,
                 @as(f32, @floatFromInt(pixi.state.colors.primary[2])) / 255.0,

src/gfx/camera.zig

@@ -234,8 +234,8 @@ pub const Camera = struct {
         var nearest_zoom_index: usize = 0;
         var nearest_zoom_step: f32 = pixi.state.settings.zoom_steps[nearest_zoom_index];
         for (pixi.state.settings.zoom_steps, 0..) |step, i| {
-            const step_difference = @fabs(camera.zoom - step);
-            const current_difference = @fabs(camera.zoom - nearest_zoom_step);
+            const step_difference = @abs(camera.zoom - step);
+            const current_difference = @abs(camera.zoom - nearest_zoom_step);
             if (step_difference < current_difference) {
                 nearest_zoom_step = step;
                 nearest_zoom_index = i;
@@ -326,7 +326,7 @@ pub const Camera = struct {
         const i = file.selected_sprite_index;
         const tile_width = @as(f32, @floatFromInt(file.tile_width));
         const tile_height = @as(f32, @floatFromInt(file.tile_height));
-        const sprite_scale = std.math.clamp(0.5 / @fabs(@as(f32, @floatFromInt(i)) + (file.flipbook_scroll / tile_width / 1.1)), 0.5, 1.0);
+        const sprite_scale = std.math.clamp(0.5 / @abs(@as(f32, @floatFromInt(i)) + (file.flipbook_scroll / tile_width / 1.1)), 0.5, 1.0);
         var dst_x: f32 = options.sprite_position[0] + file.flipbook_scroll + @as(f32, @floatFromInt(i)) * tile_width * 1.1 - (tile_width * sprite_scale / 2.0);
         var dst_y: f32 = options.sprite_position[1] + ((1.0 - sprite_scale) * (tile_height / 2.0));
         var dst_width: f32 = tile_width * sprite_scale;

src/math/direction.zig

@@ -23,8 +23,8 @@ pub const Direction = enum(u8) {
             4 => {
                 var d: u8 = 0;
 
-                const absx = @fabs(vx);
-                const absy = @fabs(vy);
+                const absx = @abs(vx);
+                const absy = @abs(vy);
 
                 if (absy < absx * sqrt2) {
                     //x
@@ -40,8 +40,8 @@ pub const Direction = enum(u8) {
             8 => {
                 var d: u8 = 0;
 
-                const absx = @fabs(vx);
-                const absy = @fabs(vy);
+                const absx = @abs(vx);
+                const absy = @abs(vy);
 
                 if (absy < absx * (sqrt2 + 1.0)) {
                     // x