Upside down jumpthrus (#54)

Upside down jumpthrus

Author: 0x0ade

Ahorn/entities/upsideDownJumpThru.jl

@@ -0,0 +1,75 @@
+module SpringCollab2020UpsideDownJumpThru
+
+using ..Ahorn, Maple
+
+@mapdef Entity "SpringCollab2020/UpsideDownJumpThru" UpsideDownJumpThru(x::Integer, y::Integer, width::Integer=Maple.defaultBlockWidth, texture::String="wood")
+
+textures = ["wood", "dream", "temple", "templeB", "cliffside", "reflection", "core", "moon"]
+const placements = Ahorn.PlacementDict(
+    "Upside Down Jump Through ($(uppercasefirst(texture))) (Spring Collab 2020)" => Ahorn.EntityPlacement(
+        UpsideDownJumpThru,
+        "rectangle",
+        Dict{String, Any}(
+            "texture" => texture
+        )
+    ) for texture in textures
+)
+
+quads = Tuple{Integer, Integer, Integer, Integer}[
+    (0, 0, 8, 7) (8, 0, 8, 7) (16, 0, 8, 7);
+    (0, 8, 8, 5) (8, 8, 8, 5) (16, 8, 8, 5)
+]
+
+Ahorn.editingOptions(entity::UpsideDownJumpThru) = Dict{String, Any}(
+    "texture" => textures
+)
+
+Ahorn.minimumSize(entity::UpsideDownJumpThru) = 8, 0
+Ahorn.resizable(entity::UpsideDownJumpThru) = true, false
+
+function Ahorn.selection(entity::UpsideDownJumpThru)
+    x, y = Ahorn.position(entity)
+    width = Int(get(entity.data, "width", 8))
+
+    return Ahorn.Rectangle(x, y, width, 8)
+end
+
+function Ahorn.render(ctx::Ahorn.Cairo.CairoContext, entity::UpsideDownJumpThru, room::Maple.Room)
+    texture = get(entity.data, "texture", "wood")
+    texture = texture == "default" ? "wood" : texture
+
+    # Values need to be system specific integer
+    x = Int(get(entity.data, "x", 0))
+    y = Int(get(entity.data, "y", 0))
+
+    width = Int(get(entity.data, "width", 8))
+
+    startX = div(x, 8) + 1
+    stopX = startX + div(width, 8) - 1
+    startY = div(y, 8) + 1
+    
+    Ahorn.Cairo.save(ctx)
+    
+    Ahorn.scale(ctx, 1, -1)
+
+    len = stopX - startX
+    for i in 0:len
+        connected = false
+        qx = 2
+        if i == 0
+            connected = get(room.fgTiles.data, (startY, startX - 1), false) != '0'
+            qx = 1
+
+        elseif i == len
+            connected = get(room.fgTiles.data, (startY, stopX + 1), false) != '0'
+            qx = 3
+        end
+
+        quad = quads[2 - connected, qx]
+        Ahorn.drawImage(ctx, "objects/jumpthru/$(texture)", 8 * i, -8, quad...)
+    end
+    
+    Ahorn.Cairo.restore(ctx)
+end
+
+end