Add shooter demo

programs/shoot.c

@@ -0,0 +1,165 @@
+#include "helper.h"
+
+#define CATAPULT_HEIGHT 1300
+#define CATAPULT_WIDTH 700
+#define BALL_RADIUS 200
+
+TPE_Unit sides[6] =
+{
+  0,0,
+  1000,1000,
+  -1000,2000
+};
+
+uint8_t collisionCallback(uint16_t b1, uint16_t j1, uint16_t b2, uint16_t j2,
+  TPE_Vec3 p)
+{
+  // disable collision between the catapult and ball
+  return !((b1 == 0 && b2 == 1) || (b2 == 1 && b1 == 0));
+}
+
+TPE_Vec3 environmentDistance(TPE_Vec3 p, TPE_Unit maxD)
+{
+  return TPE_envGround(p,0);
+}
+
+TPE_Joint joints[3];
+TPE_Connection connections[2];
+TPE_Body catapult;
+
+uint8_t released = 0;
+
+int main(void)
+{
+  helper_init();
+
+  tpe_world.collisionCallback = collisionCallback;
+
+  tpe_world.environmentFunction = environmentDistance;
+
+  s3l_scene.camera.transform.translation.x = -2032;
+  s3l_scene.camera.transform.translation.y = 1838;
+  s3l_scene.camera.transform.translation.z = -1705;
+  s3l_scene.camera.transform.rotation.x = -5;
+  s3l_scene.camera.transform.rotation.y = -102;
+
+  joints[0] = TPE_joint(TPE_vec3(0,CATAPULT_HEIGHT,CATAPULT_WIDTH / 2),10);
+  joints[1] = TPE_joint(TPE_vec3(0,CATAPULT_HEIGHT,0),10);
+  joints[2] = TPE_joint(TPE_vec3(0,CATAPULT_HEIGHT,-1 * CATAPULT_WIDTH / 2),10);
+ 
+  connections[0].joint1 = 0;
+  connections[0].joint2 = 1;
+  connections[1].joint1 = 1;
+  connections[1].joint2 = 2;
+
+  TPE_bodyInit(&tpe_bodies[0],joints,3,connections,2,10);
+
+  joints[1].position.x -= 800;
+  joints[1].position.y -= 200;
+
+  tpe_bodies[0].flags |= TPE_BODY_FLAG_SOFT;
+  tpe_bodies[0].flags |= TPE_BODY_FLAG_SIMPLE_CONN; // this makes the spring faster
+
+  tpe_world.bodyCount++;
+
+  helper_addBall(BALL_RADIUS,1000);
+
+helper_addCenterBox(500,500,800,200,300);
+TPE_bodyMoveBy(&helper_lastBody,TPE_vec3(4000,600,-600));
+TPE_bodyDeactivate(&helper_lastBody);
+
+helper_addCenterBox(500,500,800,200,300);
+TPE_bodyMoveBy(&helper_lastBody,TPE_vec3(4000,600,600));
+TPE_bodyDeactivate(&helper_lastBody);
+
+helper_addCenterRect(500,1800,300,300);
+TPE_bodyMoveBy(&helper_lastBody,TPE_vec3(4000,1400,0));
+TPE_bodyDeactivate(&helper_lastBody);
+
+helper_addCenterBox(600,600,900,200,300);
+TPE_bodyMoveBy(&helper_lastBody,TPE_vec3(4000,2200,0));
+TPE_bodyDeactivate(&helper_lastBody);
+
+
+  while (helper_running)
+  {
+    helper_frameStart();
+
+    helper_cameraFreeMovement();
+
+    if (released)
+    {
+      TPE_worldStep(&tpe_world);
+      TPE_jointPin(&joints[0],TPE_vec3(0,CATAPULT_HEIGHT,CATAPULT_WIDTH / 2));
+      TPE_jointPin(&joints[2],TPE_vec3(0,CATAPULT_HEIGHT,-1 * CATAPULT_WIDTH / 2));
+
+      for (int i = 1; i < tpe_world.bodyCount; ++i)
+        TPE_bodyApplyGravity(&tpe_world.bodies[i],6);
+
+      TPE_bodyMultiplyNetSpeed(&tpe_world.bodies[0],500);
+    }
+
+    if (!released || tpe_world.bodies[1].joints[0].position.x < 0)
+    {
+      tpe_world.bodies[1].joints[0].position = joints[1].position;
+
+      for (int i = 0; i < 3; ++i)
+        tpe_world.bodies[1].joints[0].velocity[i] = joints[1].velocity[i];
+    }
+
+    if (sdl_keyboard[SDL_SCANCODE_SPACE])
+      released = 1;
+
+    if (!released)
+    {
+#define OFFSET 20
+      if (sdl_keyboard[SDL_SCANCODE_W])
+        joints[1].position.y += OFFSET;
+      else if (sdl_keyboard[SDL_SCANCODE_S] && joints[1].position.y > 0)
+        joints[1].position.y -= OFFSET;
+
+      if (sdl_keyboard[SDL_SCANCODE_F])
+        joints[1].position.x -= OFFSET;
+      else if (sdl_keyboard[SDL_SCANCODE_G] && joints[1].position.x < 5)
+        joints[1].position.x += OFFSET;
+
+      if (sdl_keyboard[SDL_SCANCODE_D])
+        joints[1].position.z -= OFFSET;
+      else if (sdl_keyboard[SDL_SCANCODE_A])
+        joints[1].position.z += OFFSET;
+    }
+
+    if (helper_debugDrawOn)
+      helper_debugDraw(1);
+
+    helper_set3DColor(200,200,255);
+
+    helper_draw3DSphere(tpe_world.bodies[1].joints[0].position,TPE_vec3(BALL_RADIUS,BALL_RADIUS,BALL_RADIUS),TPE_vec3(0,0,0));
+    
+helper_set3DColor(200,255,200);
+
+helper_draw3DBox(TPE_bodyGetCenterOfMass(&tpe_world.bodies[2]),TPE_vec3(700,1000,700),
+  TPE_bodyGetRotation(&tpe_world.bodies[2],0,1,2));
+
+helper_draw3DBox(TPE_bodyGetCenterOfMass(&tpe_world.bodies[3]),TPE_vec3(700,1000,700),
+  TPE_bodyGetRotation(&tpe_world.bodies[3],0,1,2));
+
+helper_draw3DBox(TPE_bodyGetCenterOfMass(&tpe_world.bodies[4]),TPE_vec3(2000,500,700),
+  TPE_bodyGetRotation(&tpe_world.bodies[4],0,1,2));
+
+helper_draw3DBox(TPE_bodyGetCenterOfMass(&tpe_world.bodies[5]),TPE_vec3(800,1100,800),
+  TPE_bodyGetRotation(&tpe_world.bodies[5],0,1,2));
+
+    helper_drawLine3D(TPE_vec3(0,0,0),TPE_vec3(0,CATAPULT_HEIGHT / 2,0),255,0,0 );
+    helper_drawLine3D(TPE_vec3(0,CATAPULT_HEIGHT / 2,0),TPE_vec3(0,CATAPULT_HEIGHT,-1 * CATAPULT_WIDTH / 2),255,0,0);
+    helper_drawLine3D(TPE_vec3(0,CATAPULT_HEIGHT / 2,0),TPE_vec3(0,CATAPULT_HEIGHT,CATAPULT_WIDTH / 2),255,0,0);
+    helper_drawLine3D(TPE_vec3(0,CATAPULT_HEIGHT,-1 * CATAPULT_WIDTH / 2),joints[1].position,0,255,0);
+    helper_drawLine3D(TPE_vec3(0,CATAPULT_HEIGHT,CATAPULT_WIDTH / 2),joints[1].position,0,255,0);
+
+    helper_frameEnd();
+  }
+
+  helper_end();
+
+  return 0;
+}