Add first implementation of druid styles (only button)

druid/styles/bounce/anims.lua

@@ -0,0 +1,26 @@
+local ui_animate = require("druid.helper.druid_animate")
+
+
+local M = {}
+
+
+function M.back_scale_animation(self, node, target_scale)
+	ui_animate.scale_to(self, node, target_scale)
+end
+
+
+function M.tap_scale_animation(self, node, target_scale)
+	ui_animate.scale_to(self, node, target_scale,
+		function()
+			M.back_scale_animation(self, node, self.scale_from)
+		end
+	)
+end
+
+
+function M.hover_scale(self, target, time)
+	ui_animate.scale(self, self.anim_node, target, time)
+end
+
+
+return M

druid/styles/bounce/const.lua

@@ -0,0 +1,14 @@
+local M = {}
+
+
+M.BUTTON = {
+	HOVER_SCALE = vmath.vector3(-0.025, -0.025, 1),
+	HOVER_TIME = 0.05,
+	SCALE_CHANGE = vmath.vector3(-0.05, - 0.05, 1),
+	BTN_SOUND = "click",
+	BTN_SOUND_DISABLED = "click",
+	DISABLED_COLOR = vmath.vector4(0, 0, 0, 1),
+	ENABLED_COLOR = vmath.vector4(1),
+}
+
+return M

druid/styles/bounce/style.lua

@@ -0,0 +1,37 @@
+local settings = require("druid.settings")
+local anims = require("druid.styles.bounce.anims")
+local const = require("druid.styles.bounce.const")
+
+local M = {}
+
+
+M.BUTTON = {
+	on_hover = function(self, node, state)
+		if self.hover_anim then
+			local scale_to = self.scale_from + const.BUTTON.HOVER_SCALE
+
+			local target_scale = state and scale_to or self.scale_from
+			anims.hover_scale(self, target_scale, const.BUTTON.HOVER_TIME)
+		end
+	end,
+
+	on_click = function(self, node)
+		local scale_to = self.scale_from + const.BUTTON.SCALE_CHANGE
+		anims.tap_scale_animation(self, node, scale_to)
+		settings.play_sound(const.BUTTON.BTN_SOUND)
+	end,
+
+	on_click_disabled = function(self, node)
+		settings.play_sound(const.BUTTON.BTN_SOUND_DISABLED)
+	end,
+
+	on_set_enabled = function(self, node, state)
+		if state then
+			gui.set_color(node, const.BUTTON.ENABLED_COLOR)
+		else
+			gui.set_color(node, const.BUTTON.DISABLED_COLOR)
+		end
+	end
+}
+
+return M