Update Worldmap

Add unoptimized desert palette animation
Make worldmap scrolling smooth
Also reduce minimum window size to 1x scaling

scripts/managers/Common.gd

@@ -193,8 +193,8 @@ func shrink_to_integer():
 	get_tree().set_screen_stretch(SceneTree.STRETCH_MODE_VIEWPORT, SceneTree.STRETCH_ASPECT_KEEP, base_resolution*scale, scale)
 
 func update_window_scale():
-	if OS.window_size < base_resolution*2:
-		OS.window_size = base_resolution*2
+	if OS.window_size < base_resolution:
+		OS.window_size = base_resolution
 	var size := OS.get_window_size()
 	var scale_vec := size / base_resolution
 	var scale_f := max(min(scale_vec.x, scale_vec.y), 1)

shaders/worldmap_shader.gdshader

@@ -8,6 +8,9 @@ uniform float uv_scale = 512.0;  // Require square tilemap for now
 uniform bool enable_sea_scroll = true;  // Disable on underwater maps (tileset 3)
 uniform bool enable_waterfall_scroll = true;  // Only enable on tileset 1
 uniform bool enable_tile_globbing = false;  // hack for minimap
+uniform float timescale_desert = 7.5;
+uniform float timescale_sea = 0.234375; // 60.0/256.0
+uniform float timescale_waterfall = 1.3;
 // uniform vec2 subtile_offset = vec2(0.0);
 const float index_scale = 255.0 / 16.0;
 const vec2 sea_tile_uv = vec2(2.0, 6.0)/16.0;
@@ -19,6 +22,10 @@ const vec2 waterfall_tile_uv_end = vec2(9.0, 9.0)/16.0;
 const vec2 waterfall_tile_uv_end_hack = vec2(9.0, 10.0)/16.0;  // we hack a second row in the atlas
 const vec2 waterfall_tile_size = waterfall_tile_uv_end - waterfall_tile_uv;
 const vec2 waterfall_tile_size_inv = 1.0/waterfall_tile_size;
+const float desert_pal_row_int = 5.0;
+const float desert_pal_col_start = 1.0/16.0;
+const float desert_pal_col_end = 5.0/16.0;
+const float desert_pal_col_range = desert_pal_col_end - desert_pal_col_start + 1.0/16.0;
 
 // This shader maps from tileID texels to Tiles, and then applies palette.
 // tiles hardcoded to 16x16 tiles for now
@@ -48,7 +55,7 @@ vec2 get_tile_atlas_uv(float tile_id, vec2 uv) {
 		// i.e. every 16 frames it will have scrolled all rows 1px
 		// every 256 frames it will have performed a full scroll
 		// At 60fps this is one full scroll every 4.266... seconds
-		pos.x = fract(pos.x - TIME/4.267 + (pos.y * (9.0/16.0)));
+		pos.x = fract(pos.x - TIME*timescale_sea + (pos.y * (9.0/16.0)));
 		out_uv = mix(sea_tile_uv, sea_tile_uv_end, pos);
 	}
 	// Waterfall VScroll UV modulation
@@ -60,7 +67,7 @@ vec2 get_tile_atlas_uv(float tile_id, vec2 uv) {
 		// Real animation seems to scroll in a cycle of shift col 1px, next frame, shift col 1px, next frame, increment by 4 rows twice, shift that one, repeat
 		// 1, 1, 5, 5, 3, 3, 7, 7, 2, 2, 6, 6, 4, 4, 8, 8
 		// For now, don't bother about the double increment
-		pos.y = fract((pos.y - TIME*1.3 + (pos.x * (4.5/32.0))) * 0.5);
+		pos.y = fract((pos.y - TIME*timescale_waterfall + (pos.x * (4.5/32.0))) * 0.5);
 		out_uv = mix(waterfall_tile_uv, waterfall_tile_uv_end_hack, pos);
 	}
 
@@ -81,8 +88,14 @@ void fragment() {
 	vec2 lut_uv = get_tile_atlas_uv(tile_id, UV);
 	float color_id = texture(tile_atlas, lut_uv).r;
 	float color_idx16 = color_id * index_scale;
-	float pal_row = trunc(color_idx16) / palette_rows;
+	float pal_row_int = trunc(color_idx16);
+	float pal_row = pal_row_int / palette_rows;
 	float pal_col = fract(color_idx16);
+	// Scroll #1~#5 for moving desert every 8 frames at 60fps (7.5Hz)
+	if (enable_waterfall_scroll && pal_row_int == desert_pal_row_int && pal_col >= desert_pal_col_start && pal_col <= desert_pal_col_end) {
+		pal_col = mod(pal_col + trunc(TIME*timescale_desert), desert_pal_col_range) + desert_pal_col_start;
+	}
+	// World 1 also has row #6 cols #12 and #13 swap every 5 frames at 60fps (12Hz) (world 2 portal)
 	vec2 palette_uv = vec2(pal_col, pal_row);
 	COLOR = texture(palette, palette_uv);
 

test/worldmap_system.gd

@@ -53,9 +53,20 @@ func _ready() -> void:
 	minimap.rect_position = Vector2(8, 168)
 	_set_map(0)
 
+func handle_movement_input(delta: float, quantize:=8.0) -> void:
+	delta = round(delta*quantize)/quantize
+	if Input.is_physical_key_pressed(KEY_RIGHT):
+		self.pos.x += delta
+	if Input.is_physical_key_pressed(KEY_LEFT):
+		self.pos.x -= delta
+	if Input.is_physical_key_pressed(KEY_DOWN):
+		self.pos.y += delta
+	if Input.is_physical_key_pressed(KEY_UP):
+		self.pos.y -= delta
 
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta: float) -> void:
+	self.handle_movement_input(delta*16)
 	self.pos = self.pos.posmod(256.0)
 	self.minimap_tween -= sign(minimap_tween - minimap_mode) * delta * 4
 	self.minimap_tween = clamp(minimap_tween, 0, 1)
@@ -88,14 +99,6 @@ func _input(event: InputEvent) -> void:
 	if event is InputEventKey:
 		if event.pressed:
 			match event.physical_scancode:
-				KEY_RIGHT:
-					pos.x += 1
-				KEY_LEFT:
-					pos.x -= 1
-				KEY_DOWN:
-					pos.y += 1
-				KEY_UP:
-					pos.y -= 1
 				KEY_1:
 					_set_map(0)
 				KEY_2: