diff options
Diffstat (limited to 'drawing.lua')
| -rw-r--r-- | drawing.lua | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/drawing.lua b/drawing.lua index f282cfa..c500f0d 100644 --- a/drawing.lua +++ b/drawing.lua @@ -26,7 +26,8 @@ function Drawing.draw(State, line) return end - local mx,my = Drawing.coord(pmx-State.left, State.width), Drawing.coord(pmy-line.y, State.width) + local mx = Drawing.coord(pmx-State.left, State.width) + local my = Drawing.coord(pmy-line.y, State.width) for _,shape in ipairs(line.shapes) do assert(shape) @@ -71,37 +72,39 @@ end function Drawing.draw_shape(drawing, shape, top, left,right) local width = right-left + local px = function(x) return Drawing.pixels(x, width)+left end + local py = function(y) return Drawing.pixels(y, width)+top end if shape.mode == 'freehand' then local prev = nil for _,point in ipairs(shape.points) do if prev then - love.graphics.line(Drawing.pixels(prev.x, width)+left,Drawing.pixels(prev.y, width)+top, Drawing.pixels(point.x, width)+left,Drawing.pixels(point.y, width)+top) + love.graphics.line(px(prev.x),py(prev.y), px(point.x),py(point.y)) end prev = point end elseif shape.mode == 'line' or shape.mode == 'manhattan' then local p1 = drawing.points[shape.p1] local p2 = drawing.points[shape.p2] - love.graphics.line(Drawing.pixels(p1.x, width)+left,Drawing.pixels(p1.y, width)+top, Drawing.pixels(p2.x, width)+left,Drawing.pixels(p2.y, width)+top) + love.graphics.line(px(p1.x),py(p1.y), px(p2.x),py(p2.y)) elseif shape.mode == 'polygon' or shape.mode == 'rectangle' or shape.mode == 'square' then local prev = nil for _,point in ipairs(shape.vertices) do local curr = drawing.points[point] if prev then - love.graphics.line(Drawing.pixels(prev.x, width)+left,Drawing.pixels(prev.y, width)+top, Drawing.pixels(curr.x, width)+left,Drawing.pixels(curr.y, width)+top) + love.graphics.line(px(prev.x),py(prev.y), px(curr.x),py(curr.y)) end prev = curr end -- close the loop local curr = drawing.points[shape.vertices[1]] - love.graphics.line(Drawing.pixels(prev.x, width)+left,Drawing.pixels(prev.y, width)+top, Drawing.pixels(curr.x, width)+left,Drawing.pixels(curr.y, width)+top) + love.graphics.line(px(prev.x),py(prev.y), px(curr.x),py(curr.y)) elseif shape.mode == 'circle' then -- TODO: clip local center = drawing.points[shape.center] - love.graphics.circle('line', Drawing.pixels(center.x, width)+left,Drawing.pixels(center.y, width)+top, Drawing.pixels(shape.radius, width)) + love.graphics.circle('line', px(center.x),py(center.y), Drawing.pixels(shape.radius, width)) elseif shape.mode == 'arc' then local center = drawing.points[shape.center] - love.graphics.arc('line', 'open', Drawing.pixels(center.x, width)+left,Drawing.pixels(center.y, width)+top, Drawing.pixels(shape.radius, width), shape.start_angle, shape.end_angle, 360) + love.graphics.arc('line', 'open', px(center.x),py(center.y), Drawing.pixels(shape.radius, width), shape.start_angle, shape.end_angle, 360) elseif shape.mode == 'deleted' then -- ignore else @@ -112,6 +115,11 @@ end function Drawing.draw_pending_shape(drawing, top, left,right) local width = right-left + local pmx,pmy = App.mouse_x(), App.mouse_y() + local px = function(x) return Drawing.pixels(x, width)+left end + local py = function(y) return Drawing.pixels(y, width)+top end + local mx = Drawing.coord(pmx-left, width) + local my = Drawing.coord(pmy-top, width) local shape = drawing.pending if shape.mode == nil then -- nothing pending @@ -120,22 +128,20 @@ function Drawing.draw_pending_shape(drawing, top, left,right) Drawing.smoothen(shape_copy) Drawing.draw_shape(drawing, shape_copy, top, left,right) elseif shape.mode == 'line' then - local mx,my = Drawing.coord(App.mouse_x()-left, width), Drawing.coord(App.mouse_y()-top, width) if mx < 0 or mx >= 256 or my < 0 or my >= drawing.h then return end local p1 = drawing.points[shape.p1] - love.graphics.line(Drawing.pixels(p1.x, width)+left,Drawing.pixels(p1.y, width)+top, Drawing.pixels(mx, width)+left,Drawing.pixels(my, width)+top) + love.graphics.line(px(p1.x),py(p1.y), pmx,pmy) elseif shape.mode == 'manhattan' then - local mx,my = Drawing.coord(App.mouse_x()-left, width), Drawing.coord(App.mouse_y()-top, width) if mx < 0 or mx >= 256 or my < 0 or my >= drawing.h then return end local p1 = drawing.points[shape.p1] if math.abs(mx-p1.x) > math.abs(my-p1.y) then - love.graphics.line(Drawing.pixels(p1.x, width)+left,Drawing.pixels(p1.y, width)+top, Drawing.pixels(mx, width)+left,Drawing.pixels(p1.y, width)+top) + love.graphics.line(px(p1.x),py(p1.y), pmx, py(p1.y)) else - love.graphics.line(Drawing.pixels(p1.x, width)+left,Drawing.pixels(p1.y, width)+top, Drawing.pixels(p1.x, width)+left,Drawing.pixels(my, width)+top) + love.graphics.line(px(p1.x),py(p1.y), px(p1.x),pmy) end elseif shape.mode == 'polygon' then -- don't close the loop on a pending polygon @@ -143,55 +149,49 @@ function Drawing.draw_pending_shape(drawing, top, left,right) for _,point in ipairs(shape.vertices) do local curr = drawing.points[point] if prev then - love.graphics.line(Drawing.pixels(prev.x, width)+left,Drawing.pixels(prev.y, width)+top, Drawing.pixels(curr.x, width)+left,Drawing.pixels(curr.y, width)+top) + love.graphics.line(px(prev.x),py(prev.y), px(curr.x),py(curr.y)) end prev = curr end - love.graphics.line(Drawing.pixels(prev.x, width)+left,Drawing.pixels(prev.y, width)+top, App.mouse_x(),App.mouse_y()) + love.graphics.line(px(prev.x),py(prev.y), pmx,pmy) elseif shape.mode == 'rectangle' then - local pmx,pmy = App.mouse_x(), App.mouse_y() local first = drawing.points[shape.vertices[1]] if #shape.vertices == 1 then - love.graphics.line(Drawing.pixels(first.x, width)+left,Drawing.pixels(first.y, width)+top, pmx,pmy) + love.graphics.line(px(first.x),py(first.y), pmx,pmy) return end local second = drawing.points[shape.vertices[2]] - local mx,my = Drawing.coord(pmx-left, width), Drawing.coord(pmy-top, width) local thirdx,thirdy, fourthx,fourthy = Drawing.complete_rectangle(first.x,first.y, second.x,second.y, mx,my) - love.graphics.line(Drawing.pixels(first.x, width)+left,Drawing.pixels(first.y, width)+top, Drawing.pixels(second.x, width)+left,Drawing.pixels(second.y, width)+top) - love.graphics.line(Drawing.pixels(second.x, width)+left,Drawing.pixels(second.y, width)+top, Drawing.pixels(thirdx, width)+left,Drawing.pixels(thirdy, width)+top) - love.graphics.line(Drawing.pixels(thirdx, width)+left,Drawing.pixels(thirdy, width)+top, Drawing.pixels(fourthx, width)+left,Drawing.pixels(fourthy, width)+top) - love.graphics.line(Drawing.pixels(fourthx, width)+left,Drawing.pixels(fourthy, width)+top, Drawing.pixels(first.x, width)+left,Drawing.pixels(first.y, width)+top) + love.graphics.line(px(first.x),py(first.y), px(second.x),py(second.y)) + love.graphics.line(px(second.x),py(second.y), px(thirdx),py(thirdy)) + love.graphics.line(px(thirdx),py(thirdy), px(fourthx),py(fourthy)) + love.graphics.line(px(fourthx),py(fourthy), px(first.x),py(first.y)) elseif shape.mode == 'square' then - local pmx,pmy = App.mouse_x(), App.mouse_y() local first = drawing.points[shape.vertices[1]] if #shape.vertices == 1 then - love.graphics.line(Drawing.pixels(first.x, width)+left,Drawing.pixels(first.y, width)+top, pmx,pmy) + love.graphics.line(px(first.x),py(first.y), pmx,pmy) return end local second = drawing.points[shape.vertices[2]] - local mx,my = Drawing.coord(pmx-left, width), Drawing.coord(pmy-top, width) local thirdx,thirdy, fourthx,fourthy = Drawing.complete_square(first.x,first.y, second.x,second.y, mx,my) - love.graphics.line(Drawing.pixels(first.x, width)+left,Drawing.pixels(first.y, width)+top, Drawing.pixels(second.x, width)+left,Drawing.pixels(second.y, width)+top) - love.graphics.line(Drawing.pixels(second.x, width)+left,Drawing.pixels(second.y, width)+top, Drawing.pixels(thirdx, width)+left,Drawing.pixels(thirdy, width)+top) - love.graphics.line(Drawing.pixels(thirdx, width)+left,Drawing.pixels(thirdy, width)+top, Drawing.pixels(fourthx, width)+left,Drawing.pixels(fourthy, width)+top) - love.graphics.line(Drawing.pixels(fourthx, width)+left,Drawing.pixels(fourthy, width)+top, Drawing.pixels(first.x, width)+left,Drawing.pixels(first.y, width)+top) + love.graphics.line(px(first.x),py(first.y), px(second.x),py(second.y)) + love.graphics.line(px(second.x),py(second.y), px(thirdx),py(thirdy)) + love.graphics.line(px(thirdx),py(thirdy), px(fourthx),py(fourthy)) + love.graphics.line(px(fourthx),py(fourthy), px(first.x),py(first.y)) elseif shape.mode == 'circle' then local center = drawing.points[shape.center] - local mx,my = Drawing.coord(App.mouse_x()-left, width), Drawing.coord(App.mouse_y()-top, width) if mx < 0 or mx >= 256 or my < 0 or my >= drawing.h then return end - local cx,cy = Drawing.pixels(center.x, width)+left, Drawing.pixels(center.y, width)+top + local cx,cy = px(center.x), py(center.y) love.graphics.circle('line', cx,cy, geom.dist(cx,cy, App.mouse_x(),App.mouse_y())) elseif shape.mode == 'arc' then local center = drawing.points[shape.center] - local mx,my = Drawing.coord(App.mouse_x()-left, width), Drawing.coord(App.mouse_y()-top, width) if mx < 0 or mx >= 256 or my < 0 or my >= drawing.h then return end shape.end_angle = geom.angle_with_hint(center.x,center.y, mx,my, shape.end_angle) - local cx,cy = Drawing.pixels(center.x, width)+left, Drawing.pixels(center.y, width)+top + local cx,cy = px(center.x), py(center.y) love.graphics.arc('line', 'open', cx,cy, Drawing.pixels(shape.radius, width), shape.start_angle, shape.end_angle, 360) elseif shape.mode == 'move' then -- nothing pending; changes are immediately committed |