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Diffstat (limited to 'effect.lua')
| -rw-r--r-- | effect.lua | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/effect.lua b/effect.lua new file mode 100644 index 0000000..6651916 --- /dev/null +++ b/effect.lua @@ -0,0 +1,97 @@ +-- `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
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