From 56605c2900355616806088f78ff0c11249f8d53b Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 14 Feb 2013 22:52:26 -0500
Subject: [PATCH] initial build system and template SDL/OpenGL demo

---
 .gitignore |  1 +
 Makefile   | 15 ++++++++++
 src/game.d | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 99 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 src/game.d

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dc22e61
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+game
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..331399c
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,15 @@
+
+DC := gdc
+TARGET := game
+SOURCES := $(shell find src -iname '*.d')
+OBJECTS := $(patsubst %.d,%.o,$(SOURCES))
+DFLAGS := -I/usr/local/include/d
+LDFLAGS := -lDerelictSDL -lDerelictGL -lDerelictGLU -lDerelictUtil -ldl -lGL -lGLU
+
+all: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+	$(DC) -o $@ $^ $(LDFLAGS)
+
+%.o: %.d
+	$(DC) -o $@ $(DFLAGS) -c $^
diff --git a/src/game.d b/src/game.d
new file mode 100644
index 0000000..a481ded
--- /dev/null
+++ b/src/game.d
@@ -0,0 +1,83 @@
+import std.stdio;
+import derelict.sdl.sdl;
+import derelict.opengl.gl;
+import derelict.opengl.glu;
+
+enum int WIDTH = 800;
+enum int HEIGHT = 600;
+
+void init()
+{
+    glClearColor (0.0, 0.0, 0.0, 0.0);
+    glShadeModel(GL_SMOOTH);
+    glViewport(0, 0, WIDTH, HEIGHT);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(60.0, cast(GLfloat)WIDTH/cast(GLfloat)HEIGHT, 1.0, 30.0);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    glTranslatef(0.0, 0.0, -10.0);
+}
+
+void display()
+{
+    glClear(GL_COLOR_BUFFER_BIT);
+    glPushMatrix();
+    glRotatef(SDL_GetTicks() * 90.0 / 1000, 0, 0, 1);
+    glBegin(GL_QUADS);
+        glColor3f(1, 1, 1);
+        glVertex3f(5.0, 5.0, 0.0);
+        glColor3f(1, 0, 0);
+        glVertex3f(-5.0, 5.0, 0.0);
+        glColor3f(0, 0, 1);
+        glVertex3f(-5.0, -5.0, 0.0);
+        glColor3f(0, 1, 0);
+        glVertex3f(5.0, -5.0, 0.0);
+    glEnd();
+    glPopMatrix();
+    SDL_GL_SwapBuffers();
+}
+
+int main(char[][] args)
+{
+    DerelictSDL.load();
+    DerelictGL.load();
+    DerelictGLU.load();
+
+    if (SDL_Init(SDL_INIT_EVERYTHING))
+    {
+        writefln("Failed to initialize SDL!");
+        return 1;
+    }
+
+    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+    SDL_Surface *screen = SDL_SetVideoMode(WIDTH, HEIGHT, 32, SDL_OPENGL);
+    if (screen == null)
+    {
+        printf("Failed to set video mode!\n");
+        SDL_Quit();
+        return 2;
+    }
+
+    init();
+    SDL_Event event;
+    for (;;)
+    {
+        if (SDL_PollEvent(&event))
+        {
+            if (event.type == SDL_QUIT)
+                break;
+            else if (event.type == SDL_KEYDOWN)
+            {
+                if (event.key.keysym.sym == SDLK_ESCAPE)
+                    break;
+            }
+        }
+        display();
+    }
+
+    SDL_Quit();
+
+    return 0;
+}