89 lines
2.6 KiB
Lua
89 lines
2.6 KiB
Lua
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-- Player-facing HUD drawn into gameCanvas. Keeping it here (rather than in
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-- the editor sidebar) means its RGB circles use the same screen blend as the
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-- room, so their overlaps are the real additive colour combinations.
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local GameUI = {}
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local channelColor = {
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red = {1, 0, 0},
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green = {0, 1, 0},
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blue = {0, 0, 1},
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}
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local vennSize = 32
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local vennLayout = {
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red = {x = 12, y = 10},
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green = {x = 20, y = 10},
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blue = {x = 16, y = 18},
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}
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local function drawDottedCircle(x, y, radius, color, dotRadius)
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local dots = math.max(14, math.floor((2 * math.pi * radius) / (dotRadius * 4)))
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love.graphics.setColor(color[1], color[2], color[3], 1)
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for index = 0, dots - 1 do
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local angle = index / dots * math.pi * 2
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love.graphics.circle("fill", x + math.cos(angle) * radius, y + math.sin(angle) * radius, dotRadius)
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end
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end
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function GameUI.init()
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uiVennCanvas = love.graphics.newCanvas(vennSize, vennSize)
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uiVennCanvas:setFilter("nearest", "nearest")
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end
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function GameUI.drawBacking()
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if not gameUiBox then return end
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love.graphics.setBlendMode("alpha")
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love.graphics.setColor(0, 0, 0, 1)
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love.graphics.rectangle("fill", gameUiBox.x, gameUiBox.y, gameUiBox.w, gameUiBox.h)
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end
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function GameUI.drawVennOverlay()
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if not gameUiBox or not uiVennCanvas then return end
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local cellSize = width / gridWidth
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local sidebarWidth = cellSize * 2
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if gameUiBox.w < sidebarWidth then return end
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love.graphics.setBlendMode("screen")
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love.graphics.setColor(1, 1, 1, 1)
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local scale = cellSize / 22
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local vennWidth = vennSize * scale
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local left = gameUiBox.x + (gameUiBox.w - vennWidth) / 2
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love.graphics.draw(uiVennCanvas, left, cellSize * 1.1, 0, scale, scale)
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end
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function GameUI.drawColorVenn(room)
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if not room or not gameUiBox then return end
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GameUI.drawBacking()
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local cellSize = width / gridWidth
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local sidebarWidth = cellSize * 2
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if gameUiBox.w < sidebarWidth or not uiVennCanvas then return end
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love.graphics.setCanvas(uiVennCanvas)
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love.graphics.clear(0, 0, 0, 0)
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love.graphics.setBlendMode("screen")
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local radius = 9
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local dotRadius = 1
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local active = {}
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for _, color in ipairs(room:getActiveColors()) do active[color] = true end
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for _, color in ipairs({"red", "green", "blue"}) do
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if room.player[color] then
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local layout = vennLayout[color]
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local x, y = layout.x, layout.y
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local rgb = channelColor[color]
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if active[color] then
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love.graphics.setColor(rgb[1], rgb[2], rgb[3], 1)
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love.graphics.circle("fill", x, y, radius)
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else
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drawDottedCircle(x, y, radius, rgb, dotRadius)
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end
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end
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end
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love.graphics.setCanvas(gameCanvas)
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GameUI.drawVennOverlay()
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end
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return GameUI
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