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-rw-r--r--effect.lua97
1 files changed, 97 insertions, 0 deletions
diff --git a/effect.lua b/effect.lua
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+-- `Effect`
+-- Short animation with graphics that plays in various situation.
+
+-- Metatable of `Effect`
+-- nils initialized in constructor
+Effect = {
+ x = 0,
+ y = 0,
+ delay = 0.08,
+ initial = nil,
+ frame = 1,
+ animation = nil,
+ sprite = love.graphics.newImage("assets/effects.png"),
+ quads = {
+ jump = {
+ [1] = love.graphics.newQuad( 0, 0, 24,24, 168,120),
+ [2] = love.graphics.newQuad( 24, 0, 24,24, 168,120),
+ [3] = love.graphics.newQuad( 48, 0, 24,24, 168,120),
+ [4] = love.graphics.newQuad( 72, 0, 24,24, 168,120),
+ frames = 4
+ },
+ doublejump = {
+ [1] = love.graphics.newQuad( 0, 24, 24,24, 168,120),
+ [2] = love.graphics.newQuad( 24, 24, 24,24, 168,120),
+ [3] = love.graphics.newQuad( 48, 24, 24,24, 168,120),
+ [4] = love.graphics.newQuad( 72, 24, 24,24, 168,120),
+ frames = 4
+ },
+ land = {
+ [1] = love.graphics.newQuad( 0, 48, 24,24, 168,120),
+ [2] = love.graphics.newQuad( 24, 48, 24,24, 168,120),
+ [3] = love.graphics.newQuad( 48, 48, 24,24, 168,120),
+ [4] = love.graphics.newQuad( 72, 48, 24,24, 168,120),
+ [5] = love.graphics.newQuad( 96, 48, 24,24, 168,120),
+ frames = 5
+ },
+ respawn = {},
+ clash = {},
+ trail = {},
+ hit = {}
+ }
+}
+
+-- NAME :POSITION :SIZE :FRAMES
+-- jump :x 0 y 0: 24px: 4
+-- doublejump:x 0 y 24: 24px: 4
+-- land :x 0 y 48: 24px: 5
+-- respawn :x 0 y 72: 24px: 7
+-- clash :x 0 y 96: 24px: 6
+-- trail :x104 y 0: 16px: 4
+-- hit :x106 y 18: 16px: 3
+
+-- Construct of `Effect`
+function Effect:new(name, x, y)
+ -- Meta
+ local o = {}
+ setmetatable(o, self)
+ self.__index = self
+ -- Set filter
+ local min, mag = self.sprite:getFilter()
+ if min ~= "nearest" or
+ mag ~= "nearest" then
+ self.sprite:setFilter("nearest", "nearest")
+ end
+ -- Init
+ o.initial = o.delay
+ o.animation = name
+ o.x = x or self.x
+ o.y = y or self.y
+ return o
+end
+
+-- Animation and return flag for deletion after completion
+-- returns true if completed and ready to delete
+function Effect:update(dt)
+ self.delay = self.delay - dt
+ if self.delay < 0 then
+ if self.frame < self.quads[self.animation].frames then
+ self.frame = self.frame + 1
+ self.delay = self.delay + self.initial
+ else
+ return true -- delete
+ end
+ end
+ return false
+end
+
+-- Draw me with scale and offsets, senpai
+function Effect:draw(offset_x, offset_y, scale)
+ -- defaults
+ local offset_x = offset_x or 0
+ local offset_y = offset_y or 0
+ local scale = scale or 1
+ -- draw
+ love.graphics.setColor(255,255,255,255)
+ love.graphics.draw(self.sprite, self.quads[self.animation][self.frame], (self.x+offset_x)*scale, (self.y+offset_y)*scale, 0, scale, scale)
+end \ No newline at end of file