mirror of
https://github.com/tanema/light_world.lua.git
synced 2024-12-24 20:24:19 +00:00
working on rotation and scaling of light bodies
This commit is contained in:
parent
691da848de
commit
115d64f51f
@ -86,12 +86,6 @@ function love.keypressed(k)
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if colorAberration == 0.0 then
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if colorAberration == 0.0 then
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colorAberration = 3.0
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colorAberration = 3.0
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end
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end
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elseif k == "f" then
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lightWorld:remove(lightMouse)
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elseif k == "g" then
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lightWorld:remove(circleTest)
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elseif k == "d" then
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lightWorld:remove(rectangleTest)
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end
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end
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end
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end
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@ -122,6 +116,17 @@ function love.update(dt)
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polygonTest:move((dt * 200), 0)
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polygonTest:move((dt * 200), 0)
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end
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end
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if love.keyboard.isDown("f") then
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polygonTest:scale(0.005)
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elseif love.keyboard.isDown("a") then
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polygonTest:scale(-0.005)
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end
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if love.keyboard.isDown("s") then
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polygonTest:rotate(0.05)
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elseif love.keyboard.isDown("d") then
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polygonTest:rotate(-0.05)
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end
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if love.keyboard.isDown("-") then
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if love.keyboard.isDown("-") then
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scale = scale - 0.01
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scale = scale - 0.01
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elseif love.keyboard.isDown("=") then
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elseif love.keyboard.isDown("=") then
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176
lib/body.lua
176
lib/body.lua
@ -27,6 +27,10 @@ local function new(id, type, ...)
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obj.tileX = 0
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obj.tileX = 0
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obj.tileY = 0
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obj.tileY = 0
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obj.zheight = 1
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obj.zheight = 1
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obj.rotation = 0
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obj.scalex = 1
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obj.scaley = 1
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obj.castsNoShadow = false
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obj.castsNoShadow = false
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obj.visible = true
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obj.visible = true
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@ -49,21 +53,19 @@ local function new(id, type, ...)
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obj:setShadowType('circle', args[3], args[4], args[5])
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obj:setShadowType('circle', args[3], args[4], args[5])
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elseif obj.type == "rectangle" then
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elseif obj.type == "rectangle" then
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obj.x = args[1] or 0
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local x = args[1] or 0
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obj.y = args[2] or 0
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local y = args[2] or 0
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local width = args[3] or 64
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local height = args[4] or 64
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local ox = args[5] or width * 0.5
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local oy = args[6] or height * 0.5
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local rectangle_canvas = love.graphics.newCanvas(args[3], args[4])
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obj:setPoints(
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util.drawto(rectangle_canvas, 0, 0, 1, function()
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x - ox, y - oy,
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love.graphics.rectangle('fill', 0, 0, args[3], args[4])
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x - ox + width, y - oy,
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end)
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x - ox + width, y - oy + height,
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obj.img = love.graphics.newImage(rectangle_canvas:getImageData())
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x - ox, y - oy + height
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obj.imgWidth = obj.img:getWidth()
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)
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obj.imgHeight = obj.img:getHeight()
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obj.ix = obj.imgWidth * 0.5
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obj.iy = obj.imgHeight * 0.5
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obj:generateNormalMapFlat("top")
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obj:setShadowType('rectangle', args[3], args[4])
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elseif obj.type == "polygon" then
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elseif obj.type == "polygon" then
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obj:setPoints(...)
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obj:setPoints(...)
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elseif obj.type == "image" then
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elseif obj.type == "image" then
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@ -106,29 +108,69 @@ local function new(id, type, ...)
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obj.oy = obj.height * 0.5
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obj.oy = obj.height * 0.5
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obj.reflection = true
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obj.reflection = true
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end
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end
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obj.old_x, obj.old_y = obj.x, obj.y
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obj:commit_changes()
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return obj
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return obj
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end
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end
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-- refresh
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-- refresh
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function body:refresh()
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function body:refresh()
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if self.shadowType == "rectangle" then
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if self.shadowType == 'polygon' and self:has_changed() then
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self.data = {
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local dx, dy, dr, dsx, dsy = self:changes()
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self.x - self.ox, self.y - self.oy,
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if self:position_changed() then
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self.x - self.ox + self.width, self.y - self.oy,
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for i = 1, #self.data, 2 do
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self.x - self.ox + self.width, self.y - self.oy + self.height,
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self.data[i], self.data[i+1] = self.data[i] + dx, self.data[i+1] + dy
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self.x - self.ox, self.y - self.oy + self.height
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end
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}
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elseif self.shadowType == 'polygon' and (self.old_x ~= self.x or self.old_y ~= self.y) then
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local dx, dy = self.x - self.old_x, self.y - self.old_y
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for i = 1, #self.data, 2 do
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self.data[i], self.data[i+1] = self.data[i] + dx, self.data[i+1] + dy
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end
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end
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self.old_x, self.old_y = self.x, self.y
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if self:rotation_changed() then
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local center = vector(self.x, self.y)
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for i = 1, #self.data, 2 do
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self.data[i], self.data[i+1] = vector(self.data[i], self.data[i+1]):rotateAround(center, dr):unpack()
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end
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end
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if self:scale_changed() then
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for i = 1, #self.data, 2 do
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self.data[i] = self.x + (self.data[i] - self.x) + ((self.data[i] - self.x) * dsx)
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self.data[i+1] = self.y + (self.data[i+1] - self.y) + ((self.data[i+1] - self.y) * dsy)
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end
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end
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self:commit_changes()
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end
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end
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end
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end
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function body:has_changed()
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return self:position_changed() or self:rotation_changed() or self:scale_changed()
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end
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function body:position_changed()
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return self.old_x ~= self.x or
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self.old_y ~= self.y
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end
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function body:rotation_changed()
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return self.old_rotation ~= self.rotation
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end
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function body:scale_changed()
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return self.old_scalex ~= self.scalex or
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self.old_scaley ~= self.scaley
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end
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function body:changes()
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return self.x - self.old_x,
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self.y - self.old_y,
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self.rotation - self.old_rotation,
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self.scalex - self.old_scalex,
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self.scaley - self.old_scaley
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end
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function body:commit_changes()
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self.old_x, self.old_y = self.x, self.y
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self.old_rotation = self.rotation
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self.old_scalex, self.old_scaley = self.scalex, self.scaley
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end
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function body:newGrid(frameWidth, frameHeight, imageWidth, imageHeight, left, top, border)
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function body:newGrid(frameWidth, frameHeight, imageWidth, imageHeight, left, top, border)
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return anim8.newGrid(
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return anim8.newGrid(
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frameWidth, frameHeight,
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frameWidth, frameHeight,
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@ -162,6 +204,7 @@ function body:pauseAtEnd() self.animation:pauseAtEnd() end
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function body:pauseAtStart() self.animation:pauseAtStart() end
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function body:pauseAtStart() self.animation:pauseAtStart() end
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function body:update(dt)
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function body:update(dt)
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self:refresh()
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if self.type == "animation" and self.animation then
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if self.type == "animation" and self.animation then
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local frame = self.animation.frames[self.animation.position]
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local frame = self.animation.frames[self.animation.position]
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_,_,self.width, self.height = frame:getViewport()
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_,_,self.width, self.height = frame:getViewport()
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@ -173,12 +216,29 @@ function body:update(dt)
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end
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end
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end
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end
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function body:rotate(angle)
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self:setRotation(self.rotation + angle)
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end
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function body:setRotation(angle)
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self.rotation = angle
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end
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function body:scale(sx, sy)
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self.scalex = self.scalex + sx
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self.scaley = self.scaley + (sy or sx)
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end
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function body:setScale(sx, sy)
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self.scalex = sx
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self.scaley = sy or sx
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end
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-- set position
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-- set position
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function body:setPosition(x, y)
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function body:setPosition(x, y)
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if x ~= self.x or y ~= self.y then
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if x ~= self.x or y ~= self.y then
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self.x = x
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self.x = x
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self.y = y
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self.y = y
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self:refresh()
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end
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end
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end
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end
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@ -190,7 +250,6 @@ function body:move(x, y)
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if y then
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if y then
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self.y = self.y + y
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self.y = self.y + y
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end
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end
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self:refresh()
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end
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end
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-- get x position
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-- get x position
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@ -218,19 +277,11 @@ function body:getImageHeight()
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return self.imgHeight
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return self.imgHeight
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end
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end
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-- set dimension
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function body:setDimension(width, height)
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self.width = width
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self.height = height
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self:refresh()
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end
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-- set offset
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-- set offset
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function body:setOffset(ox, oy)
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function body:setOffset(ox, oy)
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if ox ~= self.ox or oy ~= self.oy then
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if ox ~= self.ox or oy ~= self.oy then
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self.ox = ox
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self.ox = ox
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self.oy = oy
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self.oy = oy
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self:refresh()
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end
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end
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end
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end
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@ -453,11 +504,18 @@ function body:setShadowType(type, ...)
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self.ox = args[2] or 0
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self.ox = args[2] or 0
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self.oy = args[3] or 0
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self.oy = args[3] or 0
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elseif self.shadowType == "rectangle" then
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elseif self.shadowType == "rectangle" then
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self.shadowType = "polygon"
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self.width = args[1] or 64
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self.width = args[1] or 64
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self.height = args[2] or 64
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self.height = args[2] or 64
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self.ox = args[3] or self.width * 0.5
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self.ox = args[3] or self.width * 0.5
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self.oy = args[4] or self.height * 0.5
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self.oy = args[4] or self.height * 0.5
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self:refresh()
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self.data = {
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self.x - self.ox, self.y - self.oy,
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self.x - self.ox + self.width, self.y - self.oy,
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self.x - self.ox + self.width, self.y - self.oy + self.height,
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self.x - self.ox, self.y - self.oy + self.height
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}
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elseif self.shadowType == "polygon" then
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elseif self.shadowType == "polygon" then
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self.data = args or {0, 0, 0, 0, 0, 0}
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self.data = args or {0, 0, 0, 0, 0, 0}
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elseif self.shadowType == "image" then
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elseif self.shadowType == "image" then
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@ -507,16 +565,16 @@ function body:inRange(l, t, w, h, s)
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end
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end
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function body:drawAnimation()
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function body:drawAnimation()
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self.animation:draw(self.img, self.x - self.ix, self.y - self.iy)
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self.animation:draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
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end
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end
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function body:drawNormal()
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function body:drawNormal()
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if not self.refraction and not self.reflection and self.normalMesh then
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if not self.refraction and not self.reflection and self.normalMesh then
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love.graphics.setColor(255, 255, 255)
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love.graphics.setColor(255, 255, 255)
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if self.type == 'animation' then
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if self.type == 'animation' then
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self.animation:draw(self.normal, self.x - self.nx, self.y - self.ny)
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self.animation:draw(self.normal, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
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else
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else
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love.graphics.draw(self.normalMesh, self.x - self.nx, self.y - self.ny)
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love.graphics.draw(self.normalMesh, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
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end
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end
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end
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end
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end
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end
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@ -526,8 +584,6 @@ function body:drawGlow()
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if self.type == "circle" then
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if self.type == "circle" then
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love.graphics.circle("fill", self.x, self.y, self.radius)
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love.graphics.circle("fill", self.x, self.y, self.radius)
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elseif self.type == "rectangle" then
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love.graphics.rectangle("fill", self.x, self.y, self.width, self.height)
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elseif self.type == "polygon" then
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elseif self.type == "polygon" then
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love.graphics.polygon("fill", unpack(self.data))
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love.graphics.polygon("fill", unpack(self.data))
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elseif (self.type == "image" or self.type == "animation") and self.img then
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elseif (self.type == "image" or self.type == "animation") and self.img then
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@ -541,9 +597,9 @@ function body:drawGlow()
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end
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end
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if self.type == "animation" then
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if self.type == "animation" then
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self.animation:draw(self.img, self.x - self.ix, self.y - self.iy)
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self.animation:draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
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else
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else
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love.graphics.draw(self.img, self.x - self.ix, self.y - self.iy)
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love.graphics.draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
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end
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end
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love.graphics.setShader()
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love.graphics.setShader()
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@ -554,10 +610,10 @@ function body:drawRefraction()
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if self.refraction and self.normal then
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if self.refraction and self.normal then
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love.graphics.setColor(255, 255, 255)
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love.graphics.setColor(255, 255, 255)
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if self.tileX == 0.0 and self.tileY == 0.0 then
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if self.tileX == 0.0 and self.tileY == 0.0 then
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love.graphics.draw(self.normal, self.x - self.nx, self.y - self.ny)
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love.graphics.draw(self.normal, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
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else
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else
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self.normalMesh:setVertices(self.normalVert)
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self.normalMesh:setVertices(self.normalVert)
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love.graphics.draw(self.normalMesh, self.x - self.nx, self.y - self.ny)
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love.graphics.draw(self.normalMesh, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
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end
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end
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end
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end
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@ -566,14 +622,12 @@ function body:drawRefraction()
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if not self.refractive then
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if not self.refractive then
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if self.type == "circle" then
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if self.type == "circle" then
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love.graphics.circle("fill", self.x, self.y, self.radius)
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love.graphics.circle("fill", self.x, self.y, self.radius)
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elseif self.type == "rectangle" then
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love.graphics.rectangle("fill", self.x, self.y, self.width, self.height)
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elseif self.type == "polygon" then
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elseif self.type == "polygon" then
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love.graphics.polygon("fill", unpack(self.data))
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love.graphics.polygon("fill", unpack(self.data))
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elseif self.type == "image" and self.img then
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elseif self.type == "image" and self.img then
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love.graphics.draw(self.img, self.x - self.ix, self.y - self.iy)
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love.graphics.draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
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elseif self.type == 'animation' then
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elseif self.type == 'animation' then
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self.animation:draw(self.img, self.x - self.ix, self.y - self.iy)
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self.animation:draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
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end
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end
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end
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end
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end
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end
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@ -582,21 +636,21 @@ function body:drawReflection()
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if self.reflection and self.normal then
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if self.reflection and self.normal then
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||||||
love.graphics.setColor(255, 0, 0)
|
love.graphics.setColor(255, 0, 0)
|
||||||
self.normalMesh:setVertices(self.normalVert)
|
self.normalMesh:setVertices(self.normalVert)
|
||||||
love.graphics.draw(self.normalMesh, self.x - self.nx, self.y - self.ny)
|
love.graphics.draw(self.normalMesh, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
|
||||||
end
|
end
|
||||||
if self.reflective and self.img then
|
if self.reflective and self.img then
|
||||||
love.graphics.setColor(0, 255, 0)
|
love.graphics.setColor(0, 255, 0)
|
||||||
if self.type == 'animation' then
|
if self.type == 'animation' then
|
||||||
self.animation:draw(self.img, self.x - self.ix, self.y - self.iy)
|
self.animation:draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
|
||||||
else
|
else
|
||||||
love.graphics.draw(self.img, self.x - self.ix, self.y - self.iy)
|
love.graphics.draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
|
||||||
end
|
end
|
||||||
elseif not self.reflection and self.img then
|
elseif not self.reflection and self.img then
|
||||||
love.graphics.setColor(0, 0, 0)
|
love.graphics.setColor(0, 0, 0)
|
||||||
if self.type == 'animation' then
|
if self.type == 'animation' then
|
||||||
self.animation:draw(self.img, self.x - self.ix, self.y - self.iy)
|
self.animation:draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
|
||||||
else
|
else
|
||||||
love.graphics.draw(self.img, self.x - self.ix, self.y - self.iy)
|
love.graphics.draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
|
||||||
end
|
end
|
||||||
end
|
end
|
||||||
end
|
end
|
||||||
@ -607,9 +661,9 @@ function body:drawMaterial()
|
|||||||
love.graphics.setColor(255, 255, 255)
|
love.graphics.setColor(255, 255, 255)
|
||||||
self.materialShader:send("material", self.material)
|
self.materialShader:send("material", self.material)
|
||||||
if self.type == 'animation' then
|
if self.type == 'animation' then
|
||||||
self.animation:draw(self.normal, self.x - self.nx, self.y - self.ny)
|
self.animation:draw(self.normal, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
|
||||||
else
|
else
|
||||||
love.graphics.draw(self.normal, self.x - self.nx, self.y - self.ny)
|
love.graphics.draw(self.normal, self.x, self.y, self.rotation, self.scalex, self.scaley, self.nx, self.ny)
|
||||||
end
|
end
|
||||||
love.graphics.setShader()
|
love.graphics.setShader()
|
||||||
end
|
end
|
||||||
@ -617,7 +671,7 @@ end
|
|||||||
|
|
||||||
function body:drawStencil()
|
function body:drawStencil()
|
||||||
if not self.refraction and not self.reflection and not self.castsNoShadow then
|
if not self.refraction and not self.reflection and not self.castsNoShadow then
|
||||||
love.graphics.draw(self.img, self.x - self.ix, self.y - self.iy)
|
love.graphics.draw(self.img, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ix, self.iy)
|
||||||
end
|
end
|
||||||
end
|
end
|
||||||
|
|
||||||
@ -627,7 +681,7 @@ function body:drawShadow(light)
|
|||||||
end
|
end
|
||||||
|
|
||||||
love.graphics.setColor(self.red, self.green, self.blue, self.alpha)
|
love.graphics.setColor(self.red, self.green, self.blue, self.alpha)
|
||||||
if self.shadowType == "rectangle" or self.shadowType == "polygon" then
|
if self.shadowType == "polygon" then
|
||||||
self:drawPolyShadow(light)
|
self:drawPolyShadow(light)
|
||||||
elseif self.shadowType == "circle" then
|
elseif self.shadowType == "circle" then
|
||||||
self:drawCircleShadow(light)
|
self:drawCircleShadow(light)
|
||||||
@ -721,7 +775,7 @@ function body:drawImageShadow(light)
|
|||||||
{0, shadowStartY, 0, 1, self.red, self.green, self.blue, self.alpha}
|
{0, shadowStartY, 0, 1, self.red, self.green, self.blue, self.alpha}
|
||||||
})
|
})
|
||||||
|
|
||||||
love.graphics.draw(self.shadowMesh, self.x - self.ox, self.y - self.oy, 0, s, s)
|
love.graphics.draw(self.shadowMesh, self.x, self.y, self.rotation, self.scalex, self.scaley, self.ox, self.oy)
|
||||||
end
|
end
|
||||||
|
|
||||||
return setmetatable({new = new}, {__call = function(_, ...) return new(...) end})
|
return setmetatable({new = new}, {__call = function(_, ...) return new(...) end})
|
||||||
|
@ -43,4 +43,23 @@ function vector:dist(b)
|
|||||||
return math.sqrt(math.pow(b.x - self.x, 2) + math.pow(b.y-self.y, 2))
|
return math.sqrt(math.pow(b.x - self.x, 2) + math.pow(b.y-self.y, 2))
|
||||||
end
|
end
|
||||||
|
|
||||||
|
function vector:unpack()
|
||||||
|
return self.x, self.y
|
||||||
|
end
|
||||||
|
|
||||||
|
function vector:rotateAround(origin, angle)
|
||||||
|
local s = math.sin(angle)
|
||||||
|
local c = math.cos(angle)
|
||||||
|
-- translate point back to origin
|
||||||
|
self.x = self.x - origin.x
|
||||||
|
self.y = self.y - origin.y
|
||||||
|
-- rotate point
|
||||||
|
self.x = (self.x * c - self.y * s)
|
||||||
|
self.y = (self.x * s + self.y * c)
|
||||||
|
-- translate point back
|
||||||
|
self.x = self.x + origin.x
|
||||||
|
self.y = self.y + origin.y
|
||||||
|
return self
|
||||||
|
end
|
||||||
|
|
||||||
return setmetatable({new = new}, {__call = function(_, ...) return new(...) end})
|
return setmetatable({new = new}, {__call = function(_, ...) return new(...) end})
|
||||||
|
Loading…
Reference in New Issue
Block a user