reimplement 03.bounce sample

samples/03.bounce/bounce.material

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+{
+	"texture_layers" : [
+		"textures/bounce"
+	]
+}

samples/03.bounce/bounce.physics

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+{
+	"controller" : {
+		"name" : "controller",
+		"height" : 0.01,
+		"radius" : 0.5,
+		"slope_limit" : 0.707,
+		"step_offset" : 0.1,
+		"contact_offset" : 0.01
+	}
+}

samples/03.bounce/bounce.unit

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+{
+	"renderables" : [
+		{
+			"name" : "bounce",
+			"node" : "root",
+			"type" : "sprite",
+			"resource" : "sprites/bounce",
+			"visible" : true
+		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
+	]
+}

samples/03.bounce/box.material

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+{
+	"texture_layers" : [
+		"textures/box"
+	]
+}

samples/03.bounce/box.physics

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+{
+	"actors" : [
+		{
+			"name" : "actor_0",
+			"node" : "root",
+			"type" : "static",
+			"shapes" : [
+				{
+					"name" : "shape_0",
+					"type" : "box",
+					"x" : 0.5,
+					"y" : 2.0,
+					"z" : 0.5,
+					"w" : 0.5
+				}
+			]
+		}
+	]
+}

samples/03.bounce/box.unit

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+{
+	"renderables" : [
+		{
+			"name" : "box",
+			"node" : "root",
+			"type" : "sprite",
+			"resource" : "sprites/box",
+			"visible" : true
+		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
+	]
+}

samples/03.bounce/camera.unit

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+{
+	"cameras" : [
+		{
+			"name" : "camera",
+			"node" : "root"
+		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
+	]
+}

samples/03.bounce/crown.config

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+{
+	"boot" : "lua/game",
+	"window_width" : 1000,
+	"window_height" : 625
+}

samples/03.bounce/level.package

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+{
+	"texture" : [
+		"textures/bounce",
+		"textures/box",
+		"textures/sun"
+	],
+	"unit" : [
+		"camera",
+		"bounce",
+		"box",
+		"sun",
+		"terrain"
+	],
+	"sprite" : [
+		"sprites/bounce",
+		"sprites/box",
+		"sprites/sun"
+	],
+	"sound" : [
+		"sounds/gunshoot",
+		"sounds/footsteps",
+		"sounds/jump"
+	],
+	"physics" : [
+		"bounce",
+		"box",
+		"terrain"
+	],
+	"material" : [
+		"bounce",
+		"box",
+		"sun"
+	]
+}

samples/03.bounce/lua/game.lua

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+timer = 0.0
+cursor = false
+world = nil
+camera = nil
+up_pressed = false
+down_pressed = false
+left_pressed = false
+right_pressed = false
+camera_size = 1.0
+
+ovest = -10
+east = 10
+north = 10 / 1.6
+south = -10 / 1.6
+spd_x = 0
+spd_y = 0
+
+footsteps = nil
+speed = 12
+
+function spawn_obstacle(pos)
+	if math.random(0, 10) >= 0 and math.random(0, 10) <= 3 then
+		World.spawn_unit(world, "box", Vector3(pos, -2, 0))
+	elseif math.random(0, 10) > 3 and math.random(0, 10) <=7 then
+		World.spawn_unit(world, "box", Vector3(pos, 6, 0))
+	else
+		World.spawn_unit(world, "box", Vector3(pos, 3, 0))
+	end
+end
+
+function spawn_obstacles(dim)
+	for t = 0, dim, 15 do
+		spawn_obstacle(t)
+	end
+end
+
+function spawn_suns(x, y, dim)
+	for t=0, dim, 10 do
+		World.spawn_unit(world, "sun", Vector3(x + t, math.random(-3, 6) , 0))
+	end	
+end
+
+function update_player(world, unit, dt)
+
+	-- 3 m/s
+	-- speed = speed + 0.1 * dt;
+
+	if (Keyboard.button_pressed(Keyboard.w)) then up_pressed = true end
+	if (Keyboard.button_pressed(Keyboard.s)) then down_pressed = true end
+
+	if (Keyboard.button_released(Keyboard.w)) then up_pressed = false end
+	if (Keyboard.button_released(Keyboard.s)) then down_pressed = false end
+
+	if (Touch.pointer_down(1)) then up_pressed = true end
+	if (Touch.pointer_up(1)) then up_pressed = false end
+
+
+	contr = Unit.controller(unit)
+
+	if up_pressed then
+		spd_y = speed * dt
+	end
+
+	spd_x = speed * dt
+
+	Controller.move(contr, Vector3(spd_x, spd_y, 0.0))
+
+	spd_y = spd_y - 0.5 * dt
+
+	-- local k = 0
+	-- if spd_x > 0.0 then k = -1
+	-- elseif spd_x < 0.0 then k = 1 end
+
+	-- spd_x = spd_x + k * dt
+	-- if spd_x < 0.001 and spd_x > -0.001 then spd_x = 0.0 end
+end
+
+function update_camera(player_unit, camera_unit, camera)
+	local player_pos = Unit.world_position(player_unit, 0)
+	Camera.set_local_position(camera, camera_unit, Vector3(Vector3.x(player_pos), -south / 2.5, 1))
+end
+
+function init()
+	-- -- Set the title of the main window
+	Window.set_title("Hello world!")
+	-- Window.show_cursor(cursor)
+	-- -- Window.minimize();
+
+	package = Device.create_resource_package("level")
+	ResourcePackage.load(package)
+	ResourcePackage.flush(package)
+
+	world = Device.create_world()
+
+	-- Spawn camera
+	camera_unit = World.spawn_unit(world, "camera")
+	camera = Unit.camera(camera_unit, "camera")
+
+	-- Spawn terrain
+	terrain = World.spawn_unit(world, "terrain", Vector3(0, -3.75, 0), Quaternion(Vector3(0, 0, 1), 1.57))
+
+	-- Spawn bounce
+	bounce = World.spawn_unit(world, "bounce")
+
+	spawn_suns(15, -2, 400)
+	spawn_obstacles(400)
+
+	Camera.set_near_clip_distance(camera, 0.01)
+	Camera.set_far_clip_distance(camera, 1000)
+	Camera.set_projection_type(camera, Camera.ORTHOGRAPHIC)
+	Camera.set_orthographic_metrics(camera, ovest, east, south, north)
+	Camera.set_viewport_metrics(camera, 0, 0, 1000, 625)
+
+	Camera.set_local_position(camera, camera_unit, Vector3(0, 0, 1))
+end
+
+function frame(dt)
+	Device.update_world(world, dt)
+
+	-- Update window's viewport
+	win_w, win_h = Window.get_size()
+	Camera.set_viewport_metrics(camera, 0, 0, win_w, win_h)
+
+	-- Stop the engine when the 'ESC' key is released
+	if Keyboard.button_released(Keyboard.ESCAPE) then
+		Device.stop()
+	end
+
+	-- -- Spawn balls when SPACE pressed
+	-- if Keyboard.button_pressed(Keyboard.SPACE) then
+	-- 	World.spawn_unit(world, "b")
+	-- end
+
+	-- Play gunshoot on left click
+	if Mouse.button_pressed(Mouse.LEFT) then
+		World.play_sound(world, "sounds/gunshoot")
+	end
+
+	-- Print FPS on window title bar
+	timer = timer + Device.last_delta_time()
+		if (timer >= 5) then
+		Window.set_title(1.0 / Device.last_delta_time())
+		timer = 0.0
+	end
+
+	-- Update the player
+	update_player(world, bounce, dt)
+
+	-- Update the camera
+	update_camera(bounce, camera_unit, camera)
+
+	-- Render world
+	Device.render_world(world, camera)
+end
+
+function shutdown()
+	ResourcePackage.unload(package)
+	Device.destroy_resource_package(package)
+	Device.destroy_world(world)
+end

samples/03.bounce/sprites/bounce.sprite

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+{
+	"width" : 128,
+	"height" : 128,
+	"frames" : [
+		{
+			"name" : "bounce",
+			"region" : [0.0, 0.0, 1.0, 1.0],
+			"offset" : [0.0, 0.0],
+			"scale" : [1.0, 1.0],
+			"rotated" : false
+		}
+	]
+}

samples/03.bounce/sprites/box.sprite

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+{
+	"width" : 128,
+	"height" : 128,
+	"frames" : [
+		{
+			"name" : "box",
+			"region" : [0.0, 0.0, 1.0, 1.0],
+			"offset" : [0.0, 0.0],
+			"scale" : [1.0, 4.0],
+			"rotated" : false
+		}
+	]
+}

samples/03.bounce/sprites/sun.sprite

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+{
+	"width" : 128,
+	"height" : 128,
+	"frames" : [
+		{
+			"name" : "sun",
+			"region" : [0.0, 0.0, 1.0, 1.0],
+			"offset" : [0.0, 0.0],
+			"scale" : [1.0, 1.0],
+			"rotated" : false
+		}
+	]
+}

samples/03.bounce/sun.material

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+{
+	"texture_layers" : [
+		"textures/sun"
+	]
+}

samples/03.bounce/sun.unit

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+{
+	"renderables" : [
+		{
+			"name" : "sun",
+			"node" : "root",
+			"type" : "sprite",
+			"resource" : "sprites/sun",
+			"visible" : true
+		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
+	]
+}

samples/03.bounce/terrain.physics

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+{
+	"actors" : [
+		{
+			"name" : "actor_terrain",
+			"node" : "root",
+			"type" : "static",
+			"shapes" : [
+				{
+					"name" : "shape_terrain",
+					"type" : "plane",
+					"x" : 1.0,
+					"y" : 0.0,
+					"z" : 0.0,
+					"w" : 0.0
+				}
+			]
+		}
+	]
+}

samples/03.bounce/terrain.unit

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+{
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, -3.5, 0],
+			"rotation" : [0, 0, 1, 1.57]
+		}
+	]
+}