diff --git a/src/rl.clj b/src/rl.clj
index bc7a643..58c4877 100644
--- a/src/rl.clj
+++ b/src/rl.clj
@@ -49,9 +49,122 @@
   [::mem/struct [[:base-size ::mem/int] [:glyph-count ::mem/int] [:glyph-padding ::mem/int]
                  [:texture ::texture] [:recs ::mem/pointer] [:glyphs ::mem/pointer]]])
 
+(defalias ::n-patch-info
+  [::mem/struct [[:source ::rectangle] [:left ::mem/int] [:top ::mem/int]
+                 [:right ::mem/int] [:bottom ::mem/int] [:layout ::mem/int]]])
+
 ;;; ----------------------------------------------------------------- constants
 
+;; KeyboardKey, raylib.h.
+(def ^:const key-null 0)
+(def ^:const key-apostrophe 39)
+(def ^:const key-comma 44)
+(def ^:const key-minus 45)
+(def ^:const key-period 46)
+(def ^:const key-slash 47)
+(def ^:const key-zero 48)
+(def ^:const key-one 49)
+(def ^:const key-two 50)
+(def ^:const key-three 51)
+(def ^:const key-four 52)
+(def ^:const key-five 53)
+(def ^:const key-six 54)
+(def ^:const key-seven 55)
+(def ^:const key-eight 56)
+(def ^:const key-nine 57)
+(def ^:const key-semicolon 59)
+(def ^:const key-equal 61)
+(def ^:const key-a 65)
+(def ^:const key-b 66)
+(def ^:const key-c 67)
+(def ^:const key-d 68)
+(def ^:const key-e 69)
+(def ^:const key-f 70)
+(def ^:const key-g 71)
+(def ^:const key-h 72)
+(def ^:const key-i 73)
+(def ^:const key-j 74)
+(def ^:const key-k 75)
+(def ^:const key-l 76)
+(def ^:const key-m 77)
+(def ^:const key-n 78)
+(def ^:const key-o 79)
+(def ^:const key-p 80)
+(def ^:const key-q 81)
 (def ^:const key-r 82)
+(def ^:const key-s 83)
+(def ^:const key-t 84)
+(def ^:const key-u 85)
+(def ^:const key-v 86)
+(def ^:const key-w 87)
+(def ^:const key-x 88)
+(def ^:const key-y 89)
+(def ^:const key-z 90)
+(def ^:const key-left-bracket 91)
+(def ^:const key-backslash 92)
+(def ^:const key-right-bracket 93)
+(def ^:const key-grave 96)
+
+(def ^:const key-space 32)
+(def ^:const key-escape 256)
+(def ^:const key-enter 257)
+(def ^:const key-tab 258)
+(def ^:const key-backspace 259)
+(def ^:const key-insert 260)
+(def ^:const key-delete 261)
+(def ^:const key-right 262)
+(def ^:const key-left 263)
+(def ^:const key-down 264)
+(def ^:const key-up 265)
+(def ^:const key-page-up 266)
+(def ^:const key-page-down 267)
+(def ^:const key-home 268)
+(def ^:const key-end 269)
+(def ^:const key-caps-lock 280)
+(def ^:const key-scroll-lock 281)
+(def ^:const key-num-lock 282)
+(def ^:const key-print-screen 283)
+(def ^:const key-pause 284)
+(def ^:const key-f1 290)
+(def ^:const key-f2 291)
+(def ^:const key-f3 292)
+(def ^:const key-f4 293)
+(def ^:const key-f5 294)
+(def ^:const key-f6 295)
+(def ^:const key-f7 296)
+(def ^:const key-f8 297)
+(def ^:const key-f9 298)
+(def ^:const key-f10 299)
+(def ^:const key-f11 300)
+(def ^:const key-f12 301)
+(def ^:const key-left-shift 340)
+(def ^:const key-left-control 341)
+(def ^:const key-left-alt 342)
+(def ^:const key-left-super 343)
+(def ^:const key-right-shift 344)
+(def ^:const key-right-control 345)
+(def ^:const key-right-alt 346)
+(def ^:const key-right-super 347)
+(def ^:const key-kb-menu 348)
+
+(def ^:const key-kp-0 320)
+(def ^:const key-kp-1 321)
+(def ^:const key-kp-2 322)
+(def ^:const key-kp-3 323)
+(def ^:const key-kp-4 324)
+(def ^:const key-kp-5 325)
+(def ^:const key-kp-6 326)
+(def ^:const key-kp-7 327)
+(def ^:const key-kp-8 328)
+(def ^:const key-kp-9 329)
+(def ^:const key-kp-decimal 330)
+(def ^:const key-kp-divide 331)
+(def ^:const key-kp-multiply 332)
+(def ^:const key-kp-subtract 333)
+(def ^:const key-kp-add 334)
+(def ^:const key-kp-enter 335)
+(def ^:const key-kp-equal 336)
+
 (def ^:const mouse-button-left 0)
 (def ^:const log-warning 4)
 (def ^:const pixelformat-r8g8b8a8 7)
@@ -73,6 +186,7 @@
 
 (defcfn key-pressed?           "IsKeyPressed"          [::mem/int] ::bool)
 (defcfn mouse-button-down?     "IsMouseButtonDown"     [::mem/int] ::bool)
+(defcfn mouse-button-pressed?  "IsMouseButtonPressed"  [::mem/int] ::bool)
 (defcfn mouse-button-released? "IsMouseButtonReleased" [::mem/int] ::bool)
 (defcfn get-mouse-position     "GetMousePosition"      [] ::vector-2)
 
@@ -89,15 +203,51 @@
   [x y w h color]
   (draw-rectangle-raw!* (int x) (int y) (int w) (int h) color))
 
+(def ^:private draw-rectangle-lines-raw!*
+  (ffi/make-downcall "DrawRectangleLines"
+                     [::mem/int ::mem/int ::mem/int ::mem/int ::color] ::mem/void))
+
+(defn draw-rectangle-lines!*
+  [x y w h color]
+  (draw-rectangle-lines-raw!* (int x) (int y) (int w) (int h) color))
+
 (def update-texture!*
   (ffi/make-downcall "UpdateTexture" [::texture ::mem/pointer] ::mem/void))
 
+(def ^:private draw-texture-raw!*
+  (ffi/make-downcall "DrawTexture" [::texture ::mem/int ::mem/int ::color] ::mem/void))
+
+(defn draw-texture!*
+  [texture x y color]
+  (draw-texture-raw!* texture (int x) (int y) color))
+
+(def draw-texture-v!*
+  (ffi/make-downcall "DrawTextureV" [::texture ::vector-2 ::color] ::mem/void))
+
+(def ^:private draw-texture-ex-raw!*
+  (ffi/make-downcall "DrawTextureEx"
+                     [::texture ::vector-2 ::mem/float ::mem/float ::color] ::mem/void))
+
+(defn draw-texture-ex!*
+  [texture position rotation scale color]
+  (draw-texture-ex-raw!* texture position (float rotation) (float scale) color))
+
+(def draw-texture-rec!*
+  (ffi/make-downcall "DrawTextureRec"
+                     [::texture ::rectangle ::vector-2 ::color] ::mem/void))
+
 (def draw-texture-pro!*
   (ffi/make-downcall "DrawTexturePro"
                      [::texture ::rectangle ::rectangle ::vector-2 ::mem/float ::color]
                      ::mem/void))
 
+(def draw-texture-n-patch!*
+  (ffi/make-downcall "DrawTextureNPatch"
+                     [::texture ::n-patch-info ::rectangle ::vector-2 ::mem/float ::color]
+                     ::mem/void))
+
 ;; Called once at startup, so the map-taking form is fine.
+(defcfn load-texture-raw*       "LoadTexture"          [::mem/c-string] ::texture)
 (defcfn load-texture-from-image "LoadTextureFromImage" [::image] ::texture)
 (defcfn unload-texture!         "UnloadTexture"        [::texture] ::mem/void)
 (defcfn set-texture-filter!     "SetTextureFilter"     [::texture ::mem/int] ::mem/void)
@@ -105,6 +255,10 @@
 
 (defcfn measure-text "MeasureText" [::mem/c-string ::mem/int] ::mem/int)
 
+(defn load-texture [path]
+  (let [tex (load-texture-raw* path)]
+    (assoc tex :seg (texture-seg tex)))) 
+
 (def ^:private draw-text-raw!*
   (ffi/make-downcall "DrawText"
                      [::mem/c-string ::mem/int ::mem/int ::mem/int ::color] ::mem/void))
@@ -135,17 +289,46 @@
 
 (defn color-seg
   "Serialize a packed 0xRRGGBB int into a reusable native Color, once."
-  [^long hex]
-  (mem/serialize {:r (bit-and (bit-shift-right hex 16) 0xFF)
-                  :g (bit-and (bit-shift-right hex 8) 0xFF)
-                  :b (bit-and hex 0xFF)
-                  :a 255}
-                 ::color arena))
+  ([^long hex] (color-seg hex 255))
+  ([^long hex ^long alpha]
+   (mem/serialize {:r (bit-and (bit-shift-right hex 16) 0xFF)
+                   :g (bit-and (bit-shift-right hex 8) 0xFF)
+                   :b (bit-and hex 0xFF)
+                   :a alpha}
+                  ::color arena))
+  ([^long r ^long g ^long b ^long a]
+   (mem/serialize {:r r :g g :b b :a a} ::color arena)))
 
 (def black           (color-seg 0x000000))
 (def white           (color-seg 0xFFFFFF))
 (def cornflower-blue (color-seg 0x6495ED))
 
+;; raylib.h's named palette.
+(def light-gray  (color-seg 200 200 200 255))
+(def gray        (color-seg 130 130 130 255))
+(def dark-gray   (color-seg 80 80 80 255))
+(def yellow      (color-seg 253 249 0 255))
+(def gold        (color-seg 255 203 0 255))
+(def orange      (color-seg 255 161 0 255))
+(def pink        (color-seg 255 109 194 255))
+(def red         (color-seg 230 41 55 255))
+(def maroon      (color-seg 190 33 55 255))
+(def green       (color-seg 0 228 48 255))
+(def lime        (color-seg 0 158 47 255))
+(def dark-green  (color-seg 0 117 44 255))
+(def sky-blue    (color-seg 102 191 255 255))
+(def blue        (color-seg 0 121 241 255))
+(def dark-blue   (color-seg 0 82 172 255))
+(def purple      (color-seg 200 122 255 255))
+(def violet      (color-seg 135 60 190 255))
+(def dark-purple (color-seg 112 31 126 255))
+(def beige       (color-seg 211 176 131 255))
+(def brown       (color-seg 127 106 79 255))
+(def dark-brown  (color-seg 76 63 47 255))
+(def blank       (color-seg 0 0 0 0))
+(def magenta     (color-seg 255 0 255 255))
+(def ray-white   (color-seg 245 245 245 255))
+
 (defn rect-seg [x y w h]
   (mem/serialize {:x (float x) :y (float y) :width (float w) :height (float h)}
                  ::rectangle arena))
@@ -156,6 +339,11 @@
 (defn texture-seg [tex]
   (mem/serialize tex ::texture arena))
 
+(defn n-patch-info-seg [{:keys [source left top right bottom layout]}]
+  (mem/serialize {:source source :left (int left) :top (int top)
+                  :right (int right) :bottom (int bottom) :layout (int layout)}
+                 ::n-patch-info arena))
+
 (defn font-seg [font]
   (mem/serialize font ::font arena))