paint: update minic api

paint/sources/functions.h

@@ -413,6 +413,7 @@ void                      tab_stages_apply(stage_t *stage);
 void                      tab_stages_rename_object(char *old_name, char *new_name);
 void                      tab_stages_rename_layer(char *old_name, char *new_name);
 void                      script_set_stage(char *name);
+void                      script_fade_to_stage(char *stage);
 void                      tab_stages_prune();
 void                      project_open();
 void                      project_save(bool save_and_quit);

paint/sources/minic_api.c

@@ -29,6 +29,7 @@
 void   console_log(char *s);
 bool   point_in_aabb(object_t *object, vec4_t point);
 vec4_t raycast_aabb_mouse(object_t *object);
+void   script_tween_to(object_t *o, vec4_t to, f32 speed);
 
 static const char *minic_read_str(minic_val_t v) {
 	if (v.type == MINIC_T_PTR && v.p != NULL) {
@@ -275,6 +276,7 @@ static void minic_set_mat4(minic_val_t *o, mat4_t m) { minic_box(o, m.m, 16); }
 	X(V4, transform_up, transform_up(AP(0)))                                 \
 	X(V4, raycast_aabb_mouse, raycast_aabb_mouse((object_t *)AP(0)))         \
 	X(I, point_in_aabb, point_in_aabb((object_t *)AP(0), V4(1)))             \
+	X(VOID, script_tween_to, script_tween_to((object_t *)AP(0), V4(1), AF(2)))      \
 	X(VOID, line_draw_render, line_draw_render(M4(0)))                       \
 	X(VOID, line_draw_bounds, line_draw_bounds(M4(0), V4(1)))                \
 	X(VOID, shape_draw_sphere, shape_draw_sphere(M4(0)))                     \
@@ -383,6 +385,8 @@ project_t *script_get_project() {
 }
 
 void script_set_stage(char *name);
+void script_fade_to_stage(char *stage);
+char *script_get_stage();
 void script_set_tilesheet_anim(object_t *o, char *anim);
 
 object_t *script_get_object(char *s) {
@@ -1363,6 +1367,8 @@ void minic_register_builtins() {
 	R(script_get_project, "p()");
 	R(script_get_object, "p(p)");
 	R(script_set_stage, "v(p)");
+	R(script_fade_to_stage, "v(p)");
+	R(script_get_stage, "p()");
 	R(script_set_tilesheet_anim, "v(p,p)");
 	R(context_set_viewport_shader, "v(p)");
 	R(context_set_viewport_mode, "v(i)");

paint/sources/util/util_script.c

@@ -15,6 +15,11 @@ void script_set_stage(char *name) {
 	}
 }
 
+char *script_get_stage() {
+	stage_t *s = tab_stages_get_stage();
+	return s != NULL ? s->name : NULL;
+}
+
 void script_set_tilesheet_anim(object_t *o, char *anim) {
 	mesh_object_t *mo = (mesh_object_t *)o->ext;
 
@@ -60,3 +65,63 @@ void script_set_tilesheet_anim(object_t *o, char *anim) {
 		}
 	}
 }
+
+static transform_t *_script_tween_transform = NULL;
+
+static void script_tween_done(void) {
+	_script_tween_transform = NULL;
+}
+
+static void script_tween_tick(void) {
+	_script_tween_transform->dirty = true;
+}
+
+void script_tween_to(object_t *o, vec4_t to, f32 speed) {
+	if (_script_tween_transform != NULL) {
+		return;
+	}
+
+	transform_t *t          = o->transform;
+	_script_tween_transform = t;
+	f32    duration         = vec4_dist(t->loc, to) / speed;
+	ease_t ease             = EASE_LINEAR;
+	tween_to(GC_ALLOC_INIT(tween_anim_t,
+	                       {.target = &t->loc.x, .to = to.x, .duration = duration, .ease = ease, .tick = script_tween_tick, .done = script_tween_done}));
+	tween_to(GC_ALLOC_INIT(tween_anim_t, {.target = &t->loc.y, .to = to.y, .duration = duration, .ease = ease}));
+	tween_to(GC_ALLOC_INIT(tween_anim_t, {.target = &t->loc.z, .to = to.z, .duration = duration, .ease = ease}));
+}
+
+static f32   _script_fade_opacity = 0.0f;
+static char *_script_fade_stage   = NULL;
+
+static void script_fade_draw(void *_) {
+	draw_begin(NULL, false, 0);
+	draw_set_color((u32)(_script_fade_opacity * 255.0f) << 24);
+	draw_filled_rect(0, 0, iron_window_width(), iron_window_height());
+	draw_end();
+}
+
+static void script_fade_out_done(void *_) {
+	sys_remove_update(script_fade_draw);
+	gc_unroot(_script_fade_stage);
+	_script_fade_stage = NULL;
+}
+
+static void script_fade_in_done(void *_) {
+	script_set_stage(_script_fade_stage);
+	tween_to(GC_ALLOC_INIT(tween_anim_t, {.target = &_script_fade_opacity, .to = 0.0f, .duration = 1.0f, .ease = EASE_LINEAR, .done = script_fade_out_done}));
+}
+
+void script_fade_to_stage(char *stage) {
+	if (_script_fade_stage != NULL) {
+		return; // Fade in progress
+	}
+	_script_fade_stage = string_copy(stage);
+	gc_root(_script_fade_stage);
+
+	_script_fade_opacity = 0.0f;
+	sys_notify_on_update(script_fade_draw, NULL);
+
+	// Fade to black, set the stage, then fade back in
+	tween_to(GC_ALLOC_INIT(tween_anim_t, {.target = &_script_fade_opacity, .to = 1.0f, .duration = 1.0f, .ease = EASE_LINEAR, .done = script_fade_in_done}));
+}