123 lines
3.5 KiB
Lua
123 lines
3.5 KiB
Lua
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fireball={
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hab=-1,
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x=0, y=0,
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w=6, h=6,
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wait=0,
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flip=false,
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step_length=3,
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power=1,
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size=1,
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bb={x=0,y=0,w=4,h=4},
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x1=0,
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y1=0,
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step_length_x=1,
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step_length_y=1,
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}
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function fireball.init(_hab,_x,_y,_flip, _off_x, _off_y, _power)
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local world_x, world_y = coords.room_to_world(_hab,_x,_y)
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_power = _power or 1
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if fireball.hab ~= -1 then return end
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_off_x = _off_x or 0
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_off_y = _off_y or 0
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fireball.hab=_hab
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fireball.x= world_x+_off_x
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fireball.y= world_y+_off_y
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fireball.flip=_flip
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fireball.power=_power
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fireball.size=1
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fireball.w = 6
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fireball.h = 6
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fireball.bb = {x=0,y=0,w=4,h=4}
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end
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function fireball.draw()
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if fireball.hab == -1 then return end
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local scr_x, scr_y = viewp:screen_coords( fireball.x, fireball.y )
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draw.circf(scr_x,scr_y,8*fireball.size,16)
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draw.circf(scr_x,scr_y,6*fireball.size,3)
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draw.circf(scr_x,scr_y,2*fireball.size,8)
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end
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function fireball.update()
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if fireball.power==2 and fireball.power>fireball.size then
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fireball.wait = fireball.wait + 1
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fireball.x1=abad.x+abad.bb.x+(abad.bb.w//2)
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fireball.y1=abad.y
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if abad.x<fireball.x then
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fireball.step_length_x = -1
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else
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fireball.step_length_x = 1
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end
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if abad.y<fireball.y then
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fireball.step_length_y = -1
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else
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fireball.step_length_y = 1
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end
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if fireball.wait==6 then
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fireball.size = fireball.size+0.1
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fireball.wait = 0
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end
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local dx = math.abs(fireball.x-fireball.x1)
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local dy = math.abs(fireball.y-fireball.y1)
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if dx<dy then
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if dy~=0 then
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fireball.step_length_x = fireball.step_length_x*(dx/dy)*2
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fireball.step_length_y = fireball.step_length_y*2
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end
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else
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if dx~=0 then
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fireball.step_length_x = fireball.step_length_x*2
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fireball.step_length_y = fireball.step_length_y*(dy/dx)*2
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end
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end
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fireball.w=6*fireball.size
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fireball.h=fireball.w
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fireball.bb = {x=0,y=0,w=4*fireball.size,h=4*fireball.size}
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return
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end
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if fireball.hab == -1 then return end
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-- fireball.wait=fireball.wait+1
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--if fireball.wait==3 then
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fireball.wait=0
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--if viewp:inside(fireball.x, fireball.y, fireball.w, fireball.h)==false then
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-- fireball.hab=-1
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-- return
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--end
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if fireball.power==1 then
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if arc_check_tile(fireball.x,fireball.y)<tiletype.block then
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if fireball.flip then
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fireball.x=fireball.x-fireball.step_length
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else
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fireball.x=fireball.x+fireball.step_length
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end
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else
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fireball.hab=-1
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return
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end
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elseif fireball.power==2 then
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fireball.x = fireball.x+fireball.step_length_x
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fireball.y = fireball.y+fireball.step_length_y
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end
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if viewp:inside(fireball.x, fireball.y, fireball.w, fireball.h) then
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if collision(fireball,abad) then
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if fireball.power==1 and abad.update~=abad_state_crouch then
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abad_hurt(1)
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elseif fireball.power==2 then
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abad_hurt(2)
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end
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fireball.hab=-1
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end
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else
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fireball.hab=-1
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end
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--end
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end
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