Air warning indicator, like the hp warning indicator (corners become bluer)

git-svn-id: http://svn.net-core.org/repos/t-engine4@4898 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/class/Player.lua

@@ -79,6 +79,7 @@ function _M:init(t, no_default)
 
 	t.rank = t.rank or 3
 	t.old_life = 0
+	t.old_air = 0
 
 	t.money_value_multiplier = t.money_value_multiplier or 1 -- changes amounts in gold piles and such
 
@@ -248,6 +249,7 @@ function _M:act()
 	self:updateMainShader()
 
 	self.old_life = self.life
+	self.old_air = self.air
 
 	-- Clean log flasher
 --	game.flash:empty()
@@ -277,6 +279,11 @@ function _M:updateMainShader()
 			if self.life < self.max_life / 2 then game.fbo_shader:setUniform("hp_warning", 1 - (self.life / self.max_life))
 			else game.fbo_shader:setUniform("hp_warning", 0) end
 		end
+		-- Set shader air warning
+		if self.air ~= self.old_air then
+			if self.air < self.max_air / 2 then game.fbo_shader:setUniform("air_warning", 1 - (self.air / self.max_air))
+			else game.fbo_shader:setUniform("air_warning", 0) end
+		end
 
 		-- Colorize shader
 		if self:attr("stealth") then game.fbo_shader:setUniform("colorize", {0.9,0.9,0.9,0.6})
@@ -953,7 +960,7 @@ function _M:playerUseItem(object, item, inven)
 			self:breakStepUp()
 			self:breakStealth()
 			self:breakLightningSpeed()
-			self:breakGatherTheThreads()
+			self:breakReloading()
 			self.changed = true
 		end)
 		local ok, ret = coroutine.resume(co)

game/modules/tome/data/gfx/shaders/main_fbo.frag

 uniform float hp_warning;
+uniform float air_warning;
 uniform float motionblur;
 uniform float blur;
 uniform float tick;
@@ -113,6 +114,13 @@ void main(void)
 		float dist = length(gl_TexCoord[0].xy - vec2(0.5)) / 2.0;
 		gl_FragColor = mix(gl_FragColor, hp_warning_color, dist);
 	}
+
+	if (air_warning > 0.0)
+	{
+		vec4 air_warning_color = vec4(0.0, air_warning / 3.0, air_warning / 1.0, air_warning / 1.3);
+		float dist = length(gl_TexCoord[0].xy - vec2(0.5)) / 2.0;
+		gl_FragColor = mix(gl_FragColor, air_warning_color, dist);
+	}
 }
 
 /*uniform sampler2D tex;