Adding initial code to draw a window

1 files changed, 199 insertions, 0 deletions

diff --git a/bounce.cpp b/bounce.cpp
new file mode 100644
index 0000000..33b1a2e
--- /dev/null
+++ b/bounce.cpp
@@ -0,0 +1,199 @@
+/*
+ * Bounce
+ *
+ * A simple Boing like demo
+ *
+ * Matt Kohls
+ * 2019
+ *
+ *
+ */
+
+// Amiga includes
+#include <proto/intuition.h>
+#include <proto/gadtools.h>
+#include <proto/graphics.h>
+#include <proto/layers.h>
+#include <proto/exec.h>
+#include <proto/dos.h>
+#include <intuition/intuition.h>
+
+#include <stdint.h>
+#include <stdlib.h>
+
+// Constants
+const uint16_t SCREEN_WIDTH = 100;
+const uint16_t SCREEN_HEIGHT = 100;
+const uint16_t POSX = 10;
+const uint16_t POSY = 10;
+
+/**
+ * WindowPos
+ * Keeps track of window position
+ */
+struct WindowPos {
+	uint16_t posx;
+	uint16_t posy;
+};
+
+/**
+ * WindowSize
+ * Keeps track of window size
+ */
+struct WindowSize {
+	uint16_t width;
+	uint16_t height;
+};
+
+/**
+ * BallPos
+ * Keeps track of ball position
+ */
+struct BallPos {
+	uint16_t posx;
+	uint16_t posy;
+};
+
+/**
+ * AmigaWindow
+ * Wrapper class for Amgia functions
+ *
+ */
+class AmigaWindow {
+	private:
+		struct BallPos ballpos;
+		int bounceDirX;
+		int bounceDirY;
+
+		struct WindowPos winposition;
+		struct WindowSize winsize;
+		struct Window *window;
+		struct RastPort *rp;
+		struct IntuiMessage *msg;
+		ULONG msgClass;
+		bool bad;
+
+		/**
+		 * Initialize the window
+		 * @param winposition Position of window
+		 * @param winsize Size of window
+		 */
+		void init() {
+			bad = false;
+			window = OpenWindowTags(NULL,
+					WA_Left, winposition.posx, WA_Top, winposition.posy,
+					WA_Width, winsize.width, WA_Height, winsize.height,
+					WA_IDCMP, IDCMP_CLOSEWINDOW | IDCMP_REFRESHWINDOW,
+					WA_Flags, WFLG_SIZEGADGET | WFLG_DRAGBAR | WFLG_DEPTHGADGET | 
+					WFLG_CLOSEGADGET | WFLG_ACTIVATE | WFLG_SMART_REFRESH,
+					WA_Title, "Bounce", WA_PubScreenName, "Workbench", TAG_DONE);
+			if(window == nullptr) {
+				bad = true;
+			} else {
+				rp = window->RPort;
+				if(rp == nullptr) {
+					bad = true;
+				}
+			}
+		}
+
+		/**
+		 * Draws the bouncing ball no screen
+		 */
+		void drawBounce() {
+			BallPos oldPos = ballpos;
+			if(ballpos.posx == 0) {
+				bounceDirX = 1;
+			} else if(ballpos.posx == winsize.width) {
+				bounceDirX = -1;
+			}
+			if(ballpos.posy == 0) {
+				bounceDirY = 1;
+			} else if(ballpos.posy == winsize.height) {
+				bounceDirY = -1;
+			}
+
+			ballpos.posx += bounceDirX;
+			ballpos.posy += bounceDirY;
+
+			SetAPen(rp, (ULONG) 1);
+			WritePixel(rp, oldPos.posx, oldPos.posy);
+
+			SetAPen(rp, (ULONG) 16);
+			WritePixel(rp, ballpos.posx, ballpos.posy);
+		
+		}
+
+	public:
+		/**
+		 * Creates an empty window of a default size and position
+		 */
+		AmigaWindow() {
+			winposition = {POSX, POSY};
+			winsize = {SCREEN_WIDTH, SCREEN_HEIGHT};
+			init();
+		}
+
+		/**
+		 * Creates a new window of specific size and position
+		 * @param pos Position of window
+		 * @param size Size of window
+		 */
+		AmigaWindow(const WindowPos& pos, const WindowSize& size) {
+			winposition = pos;
+			winsize = size;
+			init();
+		}
+
+		/**
+		 * Cleans up window
+		 */
+		~AmigaWindow() {
+			if(window != nullptr) {
+				CloseWindow(window);
+				window = nullptr;
+			}
+		}
+
+		/**
+		 * Window loop for program
+		 */
+		void runLoop() {
+			ballpos = {15, 15}; // Temp for now
+			bounceDirX = 1; // Temp for now
+			bounceDirY = -1; // Temp for now
+			
+
+
+			bool stop = false;
+			while(!bad && !stop) {
+				Wait(1L << window->UserPort->mp_SigBit);
+				msg = GT_GetIMsg(window->UserPort);
+				msgClass = msg->Class;
+				GT_ReplyIMsg(msg);
+				if(msgClass == IDCMP_CLOSEWINDOW) {
+					CloseWindow(window);
+					stop = true;
+					window = nullptr;
+				} else if(msgClass == IDCMP_REFRESHWINDOW) {
+					RefreshWindowFrame(window);
+				}
+
+				//drawBounce();
+			}
+		}
+
+		/**
+		 * Tells us if there is an error with the window
+		 * @return True if there is an error, False if not
+		 */
+		bool isBad() const { return bad; }
+};
+
+int main(int argc, char** argv) {
+	AmigaWindow amigaWindow;
+	if(amigaWindow.isBad()) { return -1; }
+	amigaWindow.runLoop();
+	if(amigaWindow.isBad()) { return -1; }
+	return 0;
+}