zephr/game: fix few memory leaks (and introduced a big one). spawn particles when tiles merge

zephr/os_linux.odin

@@ -119,6 +119,7 @@ x11_assign_window_icon :: proc(icon_path: cstring, window_title: cstring) {
   target_size := 2 + icon_width * icon_height
 
   data := make([]u64, target_size)
+  defer delete(data)
 
   // first two elements are width and height
   data[0] = cast(u64)icon_width

zephr/texture.odin

@@ -1,14 +1,21 @@
 package zephr
 
+import "core:log"
+
 import gl "vendor:OpenGL"
 import stb "vendor:stb/image"
 
 TextureId :: u32
 
 load_texture :: proc(path: cstring) -> TextureId {
+  context.logger = logger
+
   texture_id: TextureId
   width, height, channels: i32
   data := stb.load(path, &width, &height, &channels, 4) // RGBA
+  if data == nil {
+    log.errorf("Failed to load texture: \"%s\"", path)
+  }
   defer stb.image_free(data)
 
   format := gl.RGBA

zephr/ui.odin

@@ -381,13 +381,13 @@ draw_triangle :: proc(constraints: ^UiConstraints, style: UiStyle) {
   gl.BindVertexArray(0)
 }
 
-draw_texture :: proc(constraints: ^UiConstraints, texture_id: TextureId, color: Color, radius: f32, align: Alignment) {
+draw_texture :: proc(constraints: ^UiConstraints, texture_id: TextureId, style: UiStyle) {
   use_shader(ui_shader)
 
-  set_vec4f(ui_shader, "aColor", cast(f32)color.r / 255, cast(f32)color.g / 255, cast(f32)color.b / 255, cast(f32)color.a / 255)
+  set_vec4f(ui_shader, "aColor", cast(f32)style.bg_color.r / 255, cast(f32)style.bg_color.g / 255, cast(f32)style.bg_color.b / 255, cast(f32)style.bg_color.a / 255)
   set_float(ui_shader, "uiWidth", constraints.width)
   set_float(ui_shader, "uiHeight", constraints.height)
-  set_float(ui_shader, "borderRadius", radius)
+  set_float(ui_shader, "borderRadius", style.border_radius)
   set_bool(ui_shader, "hasTexture", true)
 
   set_mat4f(ui_shader, "projection", zephr_ctx.projection)
@@ -395,7 +395,7 @@ draw_texture :: proc(constraints: ^UiConstraints, texture_id: TextureId, color:
   rect: Rect = ---
 
   apply_constraints(constraints, &rect.pos, &rect.size)
-  apply_alignment(align, constraints, rect.size, &rect.pos)
+  apply_alignment(style.align, constraints, rect.size, &rect.pos)
 
   // set the positions after applying alignment so children can use them
   constraints.x = rect.pos.x
@@ -586,7 +586,11 @@ draw_icon_button :: proc(constraints: ^UiConstraints, icon_tex_id: TextureId, st
   set_y_constraint(&icon_constraints, 0, .RELATIVE_PIXELS)
   set_width_constraint(&icon_constraints, constraints.width * 0.8, .FIXED)
   set_height_constraint(&icon_constraints, constraints.height * 0.8, .FIXED)
-  draw_texture(&icon_constraints, icon_tex_id, style.fg_color, 0, .CENTER)
+  tex_style := UiStyle {
+    bg_color = style.fg_color,
+    align = .CENTER,
+  }
+  draw_texture(&icon_constraints, icon_tex_id, tex_style)
 
   if (clicked && state == .ACTIVE) {
     return true

zephr/zephr.odin

@@ -671,6 +671,8 @@ init :: proc(font_path: cstring, icon_path: cstring, window_title: cstring, wind
 
 deinit :: proc() {
   backend_shutdown()
+  queue.destroy(&zephr_ctx.event_queue)
+  delete(zephr_ctx.ui.elements)
   //audio_close()
 }