samples: draw help menu

samples/01-physics/boot.package

@@ -14,3 +14,9 @@ unit = [
 level = [
 	"levels/test"
 ]
+font = [
+	"core/game/hud/debug"
+]
+material = [
+	"core/game/hud/debug"
+]

samples/01-physics/main.lua

@@ -72,6 +72,21 @@ function Game.update(dt)
 		Window.set_cursor_mode(Game.cursor.modes[Game.cursor.current_mode])
 	end
 
+	-- Toggle help.
+	if Keyboard.pressed(Keyboard.button_id("f1")) then
+		GameBase.show_help = not GameBase.show_help
+	end
+
+	GameBase.draw_help({{ key = "f1", desc = "Toggle help" },
+		{ key = "w/a/s/d", desc = "Move" },
+		{ key = "left click", desc = "Shoot" },
+		{ key = "space", desc = "Toggle mouse lock" },
+		{ key = "z", desc = "Toggle physics debug" },
+		{ key = "x", desc = "Toggle graphics debug" },
+		{ key = "esc", desc = "Quit" }}
+		, "Crown Physics Sample"
+		)
+
 	-- Update camera.
 	local delta = Mouse.axis(Mouse.axis_id("cursor_delta"))
 	Game.camera:update(dt, delta.x, delta.y)

samples/02-animation/boot.package

@@ -15,3 +15,9 @@ unit = [
 level = [
 	"levels/game"
 ]
+font = [
+	"core/game/hud/debug"
+]
+material = [
+	"core/game/hud/debug"
+]

samples/02-animation/main.lua

@@ -101,6 +101,18 @@ function Game.update(dt)
 	else
 		AnimationStateMachine.trigger(Game.sm, asm, "idle")
 	end
+
+	-- Toggle help.
+	if Keyboard.pressed(Keyboard.button_id("f1")) then
+		GameBase.show_help = not GameBase.show_help
+	end
+
+	GameBase.draw_help({{ key = "f1", desc = "Toggle help" },
+		{ key = "w/a/s/d", desc = "Move" },
+		{ key = "j", desc = "Switch characters" },
+		{ key = "esc", desc = "Quit" }}
+		, "Crown Animation Sample"
+		)
 end
 
 function Game.render(dt)

samples/core/game/game.lua

@@ -8,6 +8,8 @@ GameBase = GameBase or {
 	camera_unit = nil, -- Default camera
 	game        = nil, -- User Game
 	game_level  = nil,
+	screen_gui  = nil,
+	show_help   = true,
 
 	_test_package = nil,
 }
@@ -41,6 +43,8 @@ function GameBase.init()
 	if GameBase.game and GameBase.game.level_loaded then
 		GameBase.game.level_loaded()
 	end
+
+	GameBase.screen_gui = World.create_screen_gui(GameBase.world)
 end
 
 function GameBase.update(dt)
@@ -72,9 +76,40 @@ function GameBase.shutdown()
 		GameBase.game.shutdown()
 	end
 
+	World.destroy_gui(GameBase.world, GameBase.screen_gui)
 	Device.destroy_world(GameBase.world)
 
 	if GameBase._test_package then
 		Device.destroy_resource_package(GameBase._test_package)
 	end
 end
+
+function GameBase.draw_help(controls, title)
+	if not GameBase.show_help then
+		return
+	end
+
+	local window_w, window_h = Device.resolution()
+	local line_y = window_h - 60
+	local key_x = 40
+	local desc_x = key_x + 180
+	local title_size = 32
+	local title_margin = title_size + 15
+	local paragraph_size = 21
+	local paragraph_margin = paragraph_size + 10
+	local font = "core/game/hud/debug"
+	local material = "core/game/hud/debug"
+	local background_color = Color4(0, 0, 0, 200)
+	local title_color = Color4(220, 220, 220, 255)
+	local paragraph_color = Color4(200, 200, 200, 255)
+
+	Gui.rect(GameBase.screen_gui, Vector2(0, 0), Vector2(window_w, window_h), background_color)
+	Gui.text(GameBase.screen_gui, Vector2(key_x, line_y), title_size, title, font, material, title_color)
+	line_y = line_y - title_margin
+
+	for _, v in pairs(controls) do
+		Gui.text(GameBase.screen_gui, Vector2(key_x, line_y), paragraph_size, v.key, font, material, paragraph_color)
+		Gui.text(GameBase.screen_gui, Vector2(desc_x, line_y), paragraph_size, v.desc, font, material, paragraph_color)
+		line_y = line_y - paragraph_margin
+	end
+end