From a1ae6462b62d6afa0f868ae0bf68eed2bbfa652c Mon Sep 17 00:00:00 2001
From: Synthasmagoria <synthas@protonmail.com>
Date: Sun, 30 Aug 2026 15:26:33 +0200
Subject: [PATCH] animations are back

---
 src/animation.odin | 89 ++++++++++++----------------------------------
 src/program.odin   |  4 +--
 2 files changed, 24 insertions(+), 69 deletions(-)

diff --git a/src/animation.odin b/src/animation.odin
index d981ecc..acf2ed5 100644
--- a/src/animation.odin
+++ b/src/animation.odin
@@ -207,81 +207,36 @@ rectangle_corners_draw :: proc(corners: RectangleCorners, color: rl.Color) {
 	rl.DrawLineV(corners.bl, corners.tl, rl.BLUE)
 }
 
-animation_draw :: proc(animation: Animation, global_transform: mat3) {
+animation_draw :: proc(animation: Animation, global_transform: mat3, temp_allocator := context.temp_allocator) {
+	color_origin := cast([4]f32)ANIMATION_COLOR_ORIGIN
+	color_end := cast([4]f32)ANIMATION_COLOR_END
+
 	switch animation.type {
 	case .Rectangle:
 		shape := animation.shapes.rectangle
 		draw_animation_rectangle_corners(rectangle_corners_transform_mat3(global_transform, shape), ANIMATION_COLOR_ORIGIN)
 		transform := linalg.identity(mat3)
 		matrices := slice.reinterpret([]mat3, animation.matrices[:animation.matrix_count * 9])
-		// for mat in matrices {
-		// 	transform *= mat
-		// 	shape_next := rectangle_corners_transform_mat3(transform, shape)
-		// 	shape_next_world := rectangle_corners_transform_mat3(global_transform, shape_next)
-		// 	draw_animation_rectangle_corners(shape_next_world, ANIMATION_COLOR_ORIGIN)
-		// }
+		for mat, i in matrices {
+			animation_progress := f32(i + 1) / f32(animation.matrix_count)
+			transform_previous := transform
+			transform *= mat
+			shape_next := rectangle_corners_transform_mat3(transform, shape)
+			shape_next_world := rectangle_corners_transform_mat3(global_transform, shape_next)
+			shape_next_color := linalg.lerp(color_origin, color_end, animation_progress)
+			draw_animation_rectangle_corners(shape_next_world, rl.Color(shape_next_color))
 
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-		// shape := animation.shapes.rectangle
-		// transform := linalg.identity(mat3)
-		// color_origin := cast([4]f32)(ANIMATION_COLOR_ORIGIN)
-		// color_end := cast([4]f32)(ANIMATION_COLOR_END)
-		// draw_animation_rectangle_corners(rectangle_corners_transform_mat3(shape, global_transform), ANIMATION_COLOR_ORIGIN)
-
-		// matrices := slice.reinterpret([]mat3, animation.matrices)
-		// for i in 0..<animation.matrix_count {
-		// 	animation_progress := f32(i + 1) / f32(animation.matrix_count)
-		// 	previous := rectangle_corners_transform_mat3(shape, transform)
-		// 	transform *= matrices[i]
-		// 	next := rectangle_corners_transform_mat3(shape, transform)
-		// 	color_next := linalg.lerp(color_origin, color_end, animation_progress)
-		// 	draw_animation_rectangle_corners(rectangle_corners_transform_mat3(next, global_transform), cast(rl.Color)color_next)
-
-		// 	if f32(i) == math.floor(animation.matrix_index) {
-		// 		progress := ease.ease(animation.ease, fract(animation.matrix_index))
-		// 		color_previous := linalg.lerp(color_origin, color_end, animation.matrix_index / f32(animation.matrix_count))
-		// 		color := linalg.lerp(color_previous, color_next, progress)
-		// 		animated_corners := rectangle_corners_lerp(previous, next, progress)
-		// 		animated_corners_world := rectangle_corners_transform_mat3(animated_corners, global_transform)
-		// 		draw_animation_rectangle_corners(animated_corners_world, cast(rl.Color)color)
-		// 	}
+			if f32(i) == math.floor(animation.matrix_index) {
+				animation_current_progress_fraction := ease.ease(animation.ease, fract(animation.matrix_index))
+				animation_current_progress := (math.trunc(animation.matrix_index) + animation_current_progress_fraction) / f32(animation.matrix_count)
+				shape_previous := rectangle_corners_transform_mat3(transform_previous, shape)
+				shape_previous_world := rectangle_corners_transform_mat3(global_transform, shape_previous)
+				shape_current_world := rectangle_corners_lerp(shape_previous_world, shape_next_world, animation_current_progress_fraction)
+				shape_current_color := linalg.lerp(color_origin, color_end, animation_current_progress)
+				draw_animation_rectangle_corners(shape_current_world, rl.Color(shape_current_color))
+			}
 		}
+	}
 }
 
 animation_get_center :: proc(animation: Animation) -> v2 {
diff --git a/src/program.odin b/src/program.odin
index c8d8803..5ef882e 100644
--- a/src/program.odin
+++ b/src/program.odin
@@ -1191,8 +1191,8 @@ ui_mat3 :: proc(idx: int, mat: []f32, value_strings: []InputFloatField, dimensio
 		matrix_input_dimensions := ui.Dimensions {ui.Size_Percentage(1.0 / 3.0), ui.Size_Percentage(1.0 / 3.0)}
 		matrix_input_config := ui.ElementConfiguration {margin = 4.0}
 		// column first matrices
-		#unroll for i in 0..<3 {
-			#unroll for j in 0..<3 {
+		#unroll for j in 0..<3 {
+			#unroll for i in 0..<3 {
 				data := new(UiElementData_FloatInput, allocator)
 				index := i * 3 + j
 				data^ = {value = &mat[index], value_string = cstring(&value_strings[index][0]), tag = {.UpdateMatrix}}