bubel-ecs/demos/source/demos/snake.d
Dawid Masiukiewicz 54a6d5dec2 CI and common update:
-added webpage deploymnet stage
-added separate build stage which build all binaries and generate documentation
-added Emscripten build stage for merge to master only
-added VBO batch rendering (current default, no render mode switch yet)
-fixed camera positioning calculation
-fixed buffer issue with WebGL
-added viewport scalling (at least 300 pixels height). Pixels are scalled if screen is bigger.
-center demos gameplay area
-added fullpage html template for Emscripten build
2020-05-01 19:26:21 +00:00

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D

module demos.snake;
import app;
import bindbc.sdl;
import cimgui.cimgui;
import ecs.attributes;
import ecs.core;
import ecs.entity;
import ecs.manager;
import ecs.std;
import ecs.vector;
import ecs_utils.gfx.texture;
import ecs_utils.math.vector;
import ecs_utils.utils;
import std.array : staticArray;
enum float px = 1.0/512.0;
extern(C):
struct MapElement
{
enum Type
{
empty = 0,
apple = 1,
wall = 2,
snake_head_up = 5,
snake_head_down = 6,
snake_head_left = 7,
snake_head_right = 8,
snake_tail_up = 9,
snake_tail_down = 10,
snake_tail_left = 11,
snake_tail_right = 12,
snake_turn_ld = 13,
snake_turn_lu = 14,
snake_turn_rd = 15,
snake_turn_ru = 16,
snake_vertical = 17,
snake_horizontal = 18
}
Type type;
EntityID id;
}
struct Snake
{
__gshared const (char)* tips = "Use \"WASD\" keys to move.";
EntityTemplate* apple_tmpl;
EntityTemplate* snake_tmpl;
EntityTemplate* snake_destroy_particle;
Texture texture;
vec4[] snake_destroy_particle_frames;
vec4[] smoke_frames;
bool move_system = true;
bool draw_system = true;
const int map_size = 18;
MapElement[map_size * map_size] map;
MapElement element(ivec2 pos)
{
uint index = pos.x + pos.y * map_size;
if(index >= map.length)index = map.length - 1;
return map[index];
}
void element(MapElement el, ivec2 pos)
{
uint index = pos.x + pos.y * map_size;
if(index >= map.length)index = map.length - 1;
map[index] = el;
}
void addApple()
{
ivec2 random_pos = ivec2(rand()%map_size,rand()%map_size);
ivec2 base_pos = random_pos;
while(element(random_pos).type != MapElement.Type.empty)
{
random_pos.x += 1;
if(random_pos.x > map_size)
{
random_pos.x = 0;
random_pos.y += 1;
if(random_pos.y > map_size)random_pos.y = 0;
}
if(base_pos.x == random_pos.x && base_pos.y == random_pos.y)return;
}
CILocation* location = apple_tmpl.getComponent!CILocation;
*location = random_pos;
Entity* apple = launcher.manager.addEntity(apple_tmpl);
}
void drawMap()
{
foreach(x; 0 .. map_size)
{
foreach(y; 0 .. map_size)
{
switch(element(ivec2(x,y)).type)
{
case MapElement.Type.apple:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(0,32*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_head_up:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(48*px,112*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_head_down:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(48*px,144*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_head_left:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(0,128*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_head_right:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(32*px,128*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_tail_up:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(16*px,112*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_tail_down:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(0,112*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_tail_left:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(32*px,112*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_tail_right:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(0,144*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_turn_ld:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(64*px,128*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_turn_lu:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(32*px,144*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_turn_rd:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(16*px,144*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_turn_ru:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(64*px,112*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_vertical:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(16*px,128*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.snake_horizontal:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(48*px,128*px,16*px,16*px), 0, 0 , 0);break;
case MapElement.Type.wall:launcher.renderer.draw(texture, vec2(x*16,y*16), vec2(16,16), vec4(0,0,1,1), 0, 0 , 0);break;
default:break;
}
}
}
}
}
struct Animation
{
}
struct CAnimation
{
mixin ECS.Component;
vec4[] frames;
float time = 0;
}
struct CILocation
{
mixin ECS.Component;
alias location this;
ivec2 location;
}
struct CLocation
{
mixin ECS.Component;
alias location this;
vec2 location = vec2(0,0);
}
struct CSnake
{
void onCreate()
{
parts.array = Mallocator.makeArray!ivec2(100);
}
void onDestroy()
{
Mallocator.dispose(parts.array);
}
mixin ECS.Component;
struct Parts
{
uint length = 0;
ivec2[] array;
ivec2 opIndex(size_t ind) const
{
return array[ind];
}
ivec2[] opSlice()
{
return array[0 .. length];
}
void opIndexAssign(ivec2 vec, size_t ind)
{
array[ind] = vec;
}
size_t opDollar() const
{
return length;
}
void add(ivec2 v)
{
length++;
array[length-1] = v;
}
}
Parts parts;
}
struct CApple
{
mixin ECS.Component;
}
struct CParticle
{
mixin ECS.Component;
float life = 0;
}
struct CParticleVector
{
mixin ECS.Component;
vec2 velocity = vec2(0,0);
}
struct CMovement
{
mixin ECS.Component;
enum Direction : byte
{
up,
down,
left,
right
}
Direction direction;
}
struct CInput
{
mixin ECS.Component;
}
struct AppleSystem
{
mixin ECS.System!1;
struct EntitiesData
{
uint length;
@readonly Entity[] entities;
@readonly CApple[] movement;
@readonly CILocation[] location;
}
void onAddEntity(EntitiesData data)
{
foreach(i;0..data.length)
{
snake.element(MapElement(MapElement.Type.apple,data.entities[i].id),data.location[i]);
}
}
}
struct ParticleSystem
{
mixin ECS.System!1;
struct EntitiesData
{
uint length;
@readonly Entity[] entities;
@readonly CParticle[] particle;
}
void onUpdate(EntitiesData data)
{
foreach(i;0..data.length)
{
data.particle[i].life -= launcher.delta_time;
if(data.particle[i].life < 0)launcher.manager.removeEntity(data.entities[i].id);
}
}
}
struct ParticleMovementSystem
{
mixin ECS.System!1;
struct EntitiesData
{
uint length;
@readonly Entity[] entities;
@readonly CParticleVector[] movement;
CLocation[] location;
}
void onUpdate(EntitiesData data)
{
foreach(i;0..data.length)
{
data.location[i].location -= data.movement[i].velocity;
}
}
}
struct AnimationSystem
{
mixin ECS.System!1;
struct EntitiesData
{
uint length;
CAnimation[] animation;
}
void onUpdate(EntitiesData data)
{
foreach(i;0..data.length)
{
data.animation[i].time += launcher.delta_time * 0.01;
while(data.animation[i].time >= data.animation[i].frames.length)data.animation[i].time -= cast(float)data.animation[i].frames.length;
}
}
}
struct AnimationRenderSystem
{
mixin ECS.System!1;
struct EntitiesData
{
uint length;
@readonly CAnimation[] animation;
@readonly CLocation[] location;
}
void onUpdate(EntitiesData data)
{
foreach(i;0..data.length)
{
launcher.renderer.draw(snake.texture, cast(vec2)cast(ivec2)data.location[i].location, vec2(16,16), data.animation[i].frames[cast(int)(data.animation[i].time)], 0, 0 , 0);
}
}
}
struct MoveSystem
{
mixin ECS.System!64;
EntityTemplate* destroy_template;
CLocation* destroy_location;
CParticleVector* destroy_vector;
struct EntitiesData
{
uint length;
@readonly Entity[] entities;
@readonly CMovement[] movement;
@optional CSnake[] snakes;
CILocation[] location;
}
void setTemplates()
{
destroy_template = snake.snake_destroy_particle;
destroy_location = destroy_template.getComponent!CLocation;
destroy_vector = destroy_template.getComponent!CParticleVector;
}
void moveLocation(ref CILocation location, CMovement.Direction direction)
{
final switch(direction)
{
case CMovement.Direction.down:
location.y -= 1;
if(location.y < 0)location.y = snake.map_size - 1;
break;
case CMovement.Direction.up:
location.y += 1;
if(location.y >= snake.map_size)location.y = 0;
break;
case CMovement.Direction.left:
location.x -= 1;
if(location.x < 0)location.x = snake.map_size - 1;
break;
case CMovement.Direction.right:
location.x += 1;
if(location.x >= snake.map_size)location.x = 0;
break;
}
}
void moveSnake(ref CSnake snake, ivec2 location)
{
if(snake.parts.length)
{
.snake.element(MapElement(),snake.parts[0]);
foreach(j; 0 .. snake.parts.length - 1)
{
snake.parts[j] = snake.parts[j + 1];
}
snake.parts[$-1] = location;
}
else .snake.element(MapElement(),location);
}
static CMovement.Direction getDirection(ivec2 p1, ivec2 p2)
{
if(p1.x - p2.x == -1)return CMovement.direction.right;
else if(p1.x - p2.x == 1)return CMovement.direction.left;
else if(p1.y - p2.y == -1)return CMovement.direction.up;
else if(p1.y - p2.y == 1)return CMovement.direction.down;
else if(p1.x - p2.x > 1)return CMovement.direction.right;
else if(p1.x - p2.x < -1)return CMovement.direction.left;
else if(p1.y - p2.y > 1)return CMovement.direction.up;
else return CMovement.direction.down;
}
static MapElement.Type snakePart(ivec2 p1, ivec2 p2, ivec2 p3)
{
CMovement.Direction direction = getDirection(p1, p2);
CMovement.Direction direction2 = getDirection(p1, p3);
uint case_ = direction*4 + direction2;
final switch(case_)
{
case 0:return MapElement.Type.snake_horizontal;
case 1:return MapElement.Type.snake_horizontal;
case 2:return MapElement.Type.snake_turn_lu;
case 3:return MapElement.Type.snake_turn_ru;
case 4:return MapElement.Type.snake_horizontal;
case 5:return MapElement.Type.snake_horizontal;
case 6:return MapElement.Type.snake_turn_ld;
case 7:return MapElement.Type.snake_turn_rd;
case 8:return MapElement.Type.snake_turn_lu;
case 9:return MapElement.Type.snake_turn_ld;
case 10:return MapElement.Type.snake_vertical;
case 11:return MapElement.Type.snake_vertical;
case 12:return MapElement.Type.snake_turn_ru;
case 13:return MapElement.Type.snake_turn_rd;
case 14:return MapElement.Type.snake_vertical;
case 15:return MapElement.Type.snake_vertical;
}
}
static MapElement.Type snakeTail(ivec2 p1, ivec2 p2)
{
CMovement.Direction direction = getDirection(p1, p2);
final switch(direction)
{
case CMovement.Direction.up:return MapElement.Type.snake_tail_up;
case CMovement.Direction.down:return MapElement.Type.snake_tail_down;
case CMovement.Direction.left:return MapElement.Type.snake_tail_left;
case CMovement.Direction.right:return MapElement.Type.snake_tail_right;
}
}
void onUpdate(EntitiesData data)
{
if(data.snakes)
{
foreach(i; 0..data.length)
{
ivec2 new_location = data.location[i];
moveLocation(data.location[i], data.movement[i].direction);
final switch(snake.element(data.location[i].location).type)
{
case MapElement.Type.snake_head_up:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_head_down:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_head_left:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_head_right:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_tail_up:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_tail_down:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_tail_left:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_tail_right:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_turn_ld:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_turn_lu:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_turn_rd:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_turn_ru:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_vertical:goto case(MapElement.Type.snake_horizontal);
case MapElement.Type.snake_horizontal:
foreach(ivec2 loc; data.snakes[i].parts)
{
destroy_location.x = loc.x * 16;
destroy_location.y = loc.y * 16;
snake.element(MapElement(MapElement.Type.empty, EntityID()),loc);
launcher.manager.addEntity(snake.snake_destroy_particle);
foreach(j;0..10)
{
destroy_location.x = loc.x * 16 + randomf() * 8 - 4;
destroy_location.y = loc.y * 16 + randomf() * 8 - 4;
destroy_vector.velocity = vec2(randomf(),randomf())*0.4-0.2;
snake.element(MapElement(MapElement.Type.empty, EntityID()),loc);
launcher.manager.addEntity(snake.snake_destroy_particle);
}
}
destroy_location.x = new_location.x * 16;
destroy_location.y = new_location.y * 16;
snake.element(MapElement(MapElement.Type.empty, EntityID()),new_location);
launcher.manager.addEntity(snake.snake_destroy_particle);
launcher.manager.removeEntity(data.entities[i].id);
break;
case MapElement.Type.wall:break;
//launcher.manager.removeEntity(data.entities[i].id);
//break;
case MapElement.Type.empty:
moveSnake(data.snakes[i], new_location);
final switch(data.movement[i].direction)
{
case CMovement.Direction.up:
snake.element(MapElement(MapElement.Type.snake_head_up, data.entities[i].id),data.location[i].location);
break;
case CMovement.Direction.right:
snake.element(MapElement(MapElement.Type.snake_head_right, data.entities[i].id),data.location[i].location);
break;
case CMovement.Direction.down:
snake.element(MapElement(MapElement.Type.snake_head_down, data.entities[i].id),data.location[i].location);
break;
case CMovement.Direction.left:
snake.element(MapElement(MapElement.Type.snake_head_left, data.entities[i].id),data.location[i].location);
break;
}
if(data.snakes[i].parts.length > 1)
{
MapElement.Type elem_type = snakePart(data.snakes[i].parts[$-1],data.location[i],data.snakes[i].parts[$-2]);
snake.element(MapElement(elem_type, data.entities[i].id),data.snakes[i].parts[$-1]);
elem_type = snakeTail(data.snakes[i].parts[1], data.snakes[i].parts[0]);
snake.element(MapElement(elem_type, data.entities[i].id),data.snakes[i].parts[0]);
}
else if(data.snakes[i].parts.length == 1)
{
MapElement.Type elem_type = snakeTail(data.location[i], data.snakes[i].parts[0]);
snake.element(MapElement(elem_type, data.entities[i].id),data.snakes[i].parts[0]);
}
break;
case MapElement.Type.apple:
launcher.manager.removeEntity(snake.element(data.location[i].location).id);
if(data.snakes[i].parts.length < 100)data.snakes[i].parts.add(new_location);
if(data.snakes[i].parts.length > 1)
{
MapElement.Type elem_type = snakePart(data.snakes[i].parts[$-1],data.location[i],data.snakes[i].parts[$-2]);
snake.element(MapElement(elem_type, data.entities[i].id),data.snakes[i].parts[$-1]);
}
else if(data.snakes[i].parts.length == 1)
{
MapElement.Type elem_type = snakeTail(data.location[i], new_location);
snake.element(MapElement(elem_type, data.entities[i].id),new_location);
}
final switch(data.movement[i].direction)
{
case CMovement.Direction.up:
snake.element(MapElement(MapElement.Type.snake_head_up, data.entities[i].id),data.location[i].location);
break;
case CMovement.Direction.right:
snake.element(MapElement(MapElement.Type.snake_head_right, data.entities[i].id),data.location[i].location);
break;
case CMovement.Direction.down:
snake.element(MapElement(MapElement.Type.snake_head_down, data.entities[i].id),data.location[i].location);
break;
case CMovement.Direction.left:
snake.element(MapElement(MapElement.Type.snake_head_left, data.entities[i].id),data.location[i].location);
break;
}
snake.addApple();
break;
}
}
}
else
{
foreach(i; 0..data.length)
{
final switch(data.movement[i].direction)
{
case CMovement.Direction.down:data.location[i].location.y -= 1;break;
case CMovement.Direction.up:data.location[i].location.y += 1;break;
case CMovement.Direction.left:data.location[i].location.x -= 1;break;
case CMovement.Direction.right:data.location[i].location.x += 1;break;
}
}
}
}
}
struct InputSystem
{
mixin ECS.System!64;
struct EntitiesData
{
uint length;
CMovement[] movement;
@readonly CInput[] input;
}
void onUpdate(EntitiesData data)
{
foreach(i; 0..data.length)
{
if(launcher.getKeyState(SDL_SCANCODE_W))
{
data.movement[i].direction = CMovement.Direction.up;
}
else if(launcher.getKeyState(SDL_SCANCODE_S))
{
data.movement[i].direction = CMovement.Direction.down;
}
else if(launcher.getKeyState(SDL_SCANCODE_A))
{
data.movement[i].direction = CMovement.Direction.left;
}
else if(launcher.getKeyState(SDL_SCANCODE_D))
{
data.movement[i].direction = CMovement.Direction.right;
}
}
}
}
struct FixSnakeDirectionSystem
{
mixin ECS.System!64;
struct EntitiesData
{
uint length;
CMovement[] movement;
@readonly CILocation[] location;
const (CSnake)[] snake;
}
void onUpdate(EntitiesData data)
{
foreach(i; 0..data.length)
{
ivec2 last_location;
if(data.snake[i].parts.length)last_location = data.snake[i].parts[$ - 1];
else continue;
ivec2 next_location = data.location[i];
final switch(data.movement[i].direction)
{
case CMovement.Direction.up:
next_location.y += 1;
if(next_location.y >= snake.map_size)next_location.y = 0;
if(next_location.x == last_location.x && next_location.y == last_location.y)
{
data.movement[i].direction = CMovement.Direction.down;
}
break;
case CMovement.Direction.down:
next_location.y -= 1;
if(next_location.y < 0)next_location.y = snake.map_size - 1;
if(next_location.x == last_location.x && next_location.y == last_location.y)
{
data.movement[i].direction = CMovement.Direction.up;
}
break;
case CMovement.Direction.left:
next_location.x -= 1;
if(next_location.x < 0)next_location.x = snake.map_size - 1;
if(next_location.x == last_location.x && next_location.y == last_location.y)
{
data.movement[i].direction = CMovement.Direction.right;
}
break;
case CMovement.Direction.right:
next_location.x += 1;
if(next_location.x >= snake.map_size)next_location.x = 0;
if(next_location.x == last_location.x && next_location.y == last_location.y)
{
data.movement[i].direction = CMovement.Direction.left;
}
break;
}
}
}
}
struct CleanSystem
{
mixin ECS.System!64;
struct EntitiesData
{
uint length;
Entity[] entities;
}
void onUpdate(EntitiesData data)
{
foreach(i; 0..data.length)
{
launcher.manager.removeEntity(data.entities[i].id);
}
}
}
__gshared Snake* snake;
void snakeStart()
{
snake = Mallocator.make!Snake;
snake.texture.create();
snake.texture.load("assets/textures/atlas.png");
launcher.manager.beginRegister();
launcher.manager.registerPass("fixed");
launcher.manager.registerComponent!CLocation;
launcher.manager.registerComponent!CILocation;
launcher.manager.registerComponent!CSnake;
launcher.manager.registerComponent!CApple;
launcher.manager.registerComponent!CParticle;
launcher.manager.registerComponent!CParticleVector;
launcher.manager.registerComponent!CMovement;
launcher.manager.registerComponent!CInput;
launcher.manager.registerComponent!CAnimation;
launcher.manager.registerSystem!MoveSystem(0,"fixed");
launcher.manager.registerSystem!InputSystem(-100);
launcher.manager.registerSystem!FixSnakeDirectionSystem(-1,"fixed");
launcher.manager.registerSystem!AppleSystem(-1,"fixed");
launcher.manager.registerSystem!AnimationRenderSystem(100);
launcher.manager.registerSystem!AnimationSystem(-1);
launcher.manager.registerSystem!ParticleSystem(-1);
launcher.manager.registerSystem!ParticleMovementSystem(-1);
launcher.manager.endRegister();
launcher.gui_manager.addSystem(MoveSystem.system_id,"Move System");
launcher.gui_manager.addSystem(InputSystem.system_id,"Input System");
launcher.gui_manager.addSystem(FixSnakeDirectionSystem.system_id,"Fix Direction System");
launcher.gui_manager.addSystem(AnimationRenderSystem.system_id,"Animation Render System");
launcher.gui_manager.addSystem(AnimationSystem.system_id,"Animation System");
launcher.gui_manager.addSystem(ParticleSystem.system_id,"Particle Life System");
launcher.gui_manager.addSystem(ParticleMovementSystem.system_id,"Particle Movement System");
snake.snake_destroy_particle_frames = Mallocator.makeArray([vec4(64,144,16,16)*px,vec4(80,144,16,16)*px,vec4(96,144,16,16)*px,vec4(112,144,16,16)*px].staticArray);
{
ushort[4] components = [CILocation.component_id, CSnake.component_id, CMovement.component_id, CInput.component_id];
snake.snake_tmpl = launcher.manager.allocateTemplate(components);
CILocation* loc_comp = snake.snake_tmpl.getComponent!CILocation;
loc_comp.location = ivec2(2,2);
launcher.manager.addEntity(snake.snake_tmpl);
}
{
snake.snake_destroy_particle = launcher.manager.allocateTemplate([CLocation.component_id, CParticle.component_id, CParticleVector.component_id, CAnimation.component_id].staticArray);
CAnimation* canim = snake.snake_destroy_particle.getComponent!CAnimation;
canim.frames = snake.snake_destroy_particle_frames;
CParticle* particle = snake.snake_destroy_particle.getComponent!CParticle;
particle.life = 400;
}
{
ushort[2] components = [CILocation.component_id, CApple.component_id];
snake.apple_tmpl = launcher.manager.allocateTemplate(components);
snake.addApple();
}
launcher.gui_manager.addTemplate(snake.snake_tmpl, "Snake");
launcher.gui_manager.addTemplate(snake.apple_tmpl, "Apple");
launcher.gui_manager.addTemplate(snake.snake_destroy_particle, "Particle");
MoveSystem* move_system = launcher.manager.getSystem!MoveSystem();
move_system.setTemplates();
/*foreach(i; 0..10)
foreach(j; 0..10)
{
loc_comp.location = vec2(i*32+64,j*32+64);
launcher.manager.addEntity(simple.tmpl);
}*/
}
void snakeEnd()
{
//launcher.manager.freeTemplate(simple.tmpl);
Mallocator.dispose(snake);
}
void snakeTool(vec2 position, Tool tool, int size)
{
switch(tool)
{
case Tool.entity_spawner:
{
EntityTemplate* tmpl = launcher.gui_manager.getSelectedTemplate();
CLocation* location = tmpl.getComponent!CLocation;
if(location)
{
position.x += (randomf - 0.5) * size;
position.y += (randomf - 0.5) * size;
*location = position;
}
CILocation* ilocation = tmpl.getComponent!CILocation;
if(ilocation)
{
position.x += (randomf - 0.5) * size;
position.y += (randomf - 0.5) * size;
ivec2 ipos;
ipos.x = cast(int)(position.x / 16);
ipos.y = cast(int)(position.y / 16);
*ilocation = ipos;
if(snake.element(ipos).type != MapElement.Type.empty)return;
}
launcher.manager.addEntity(tmpl);
}
break;
default:
break;
}
}
void snakeEvent(SDL_Event* event)
{
}
bool snakeLoop()
{
launcher.render_position = (vec2(launcher.window_size.x,launcher.window_size.y)*launcher.scalling - vec2(288,288)) * 0.5;
/*if(launcher.show_demo_wnd)
{
igSetNextWindowPos(ImVec2(800 - 260, 30), ImGuiCond_Once, ImVec2(0,0));
igSetNextWindowSize(ImVec2(250, 0), ImGuiCond_Once);
if(igBegin("Snake",&launcher.show_demo_wnd,0))
{
}
igEnd();
}*/
launcher.manager.begin();
float delta_time = launcher.delta_time;
if(delta_time > 2000)delta_time = 2000;
__gshared float time = 0;
if(launcher.getKeyState(SDL_SCANCODE_SPACE))time += delta_time * 3;
else time += delta_time;
while(time > 100)
{
time -= 100;
launcher.manager.update("fixed");
}
launcher.manager.update();
launcher.manager.end();
snake.drawMap();
return true;
}